JP4003937B2 - Dispensing container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a dispensing container capable of dispensing contents, and in particular, a synthetic resin container body composed of an outer layer formed into a fixed shape and an inner layer laminated in a peelable manner on the outer layer, The present invention relates to a dispensing container having a combination structure with a base cup that is externally fitted to the bottom of the container body.
[0002]
[Prior art]
When pouring the contents out of the container, press the torso of the container with your finger to pour out the contents or use a pump or the like provided at the mouth of the container to pour out the contents Many containers are used.
[0003]
  As a container for dispensing the contents, it consists of an outer layer and an inner layer that is detachably stacked on the outer layer. There are laminated containers that introduce external air into the gap.
[0004]
[Problems to be solved by the invention]
  However, in a container having a laminated structure in which the inner layer can be peeled from the outer layer, the inner layer is deformed and deformed as the contents are reduced. It is difficult to flow out, and even when the outer layer is pressed as the content decreases, the volume-deformed inner layer is less likely to be pressurized, and the smooth dispensing operation of the content is hindered. There was a problem.
[0005]
  When the smooth dispensing operation of the contents is hindered, there is a problem that the remaining amount of the contents increases and the contents in the container cannot be used up to the end.
[0006]
Moreover, since the inside of the container main body is in a reduced pressure state with the volume reduction deformation of the inner layer, there is a problem that the outer layer is not restored to the original state and the appearance is bad.
[0007]
  In addition, in order to form a vent hole for introducing air between the outer layer and the inner layer, it is necessary to change the design of the molding machine or the like, and the manufacturing cost increases, or it is troublesome to form the vent hole. There is a problem that processing operations are required, the number of processing steps required to complete the product is increased, and manufacturing processing becomes troublesome.
[0008]
Therefore, the present invention was created to solve the above-described problems of the prior art, and the creation of a check valve mechanism that can be easily realized in a laminated structure container is a technical problem, and thus high productivity is achieved. An object of the present invention is to provide a pouring container that is maintained and has an excellent operability in appearance.
[0009]
[Means for Solving the Problems]
  Of the present invention for solving the above technical problems, the means of the invention according to claim 1 is a content dispensing container.
An inner layer that can be peeled from the outer layer is laminated on the inner surface of the outer layer, and a main body mouth portion that forms a flow path for the contents is provided at the top, and a part of the outer layer that forms the bottom of the bottomed cylindrical shape includes Having a squeeze-deformable container body with an air introduction part for sucking in external air between
Having a base cup with an outer fitting assembly at the bottom of the container body;
Having a first check valve body that is assembled and fixed to the base cup, introduces external air to the air introduction portion at the bottom of the container body, and prevents backflow of the introduced air;
The first check valve body is externally fitted to the bottom portion of the container body, and the packing piece is fitted to the cylindrical wall of the base cup, and the base cup is closely fitted to the bottom portion of the container body. Integrally molding with materials,
It is in.
[0010]
In the means of claim 1, when the contents are poured out from the container body, the inner layer is reduced in volume by the contents being poured out, so the first check valve body is opened, and the outer layer and the inner layer During this period, external air is introduced by inhalation.
[0011]
Even when the air introduction part is opened at the bottom of the container body, the bottomed cylindrical base cup is externally fitted to the bottom of the container body. The shape of the bottom of the outlet container is stably maintained.
[0012]
When the space between the inner layer and the outer layer is filled with air, the function of the first check valve body cuts off the communication between the air introduction part and the outside air, and the back flow of the air introduced between the inner layer and the outer layer Is maintained, and a state in which air is filled between the inner layer and the outer layer is maintained, and a good appearance is maintained.
[0013]
  Also,Since the packing piece is integrally molded with the elastic soft material on the first check valve body, the packing piece is sandwiched between the bottom of the container body and the cylindrical wall of the base cup, and the bottom of the container body and the base The air introduced between the outer layer and the inner layer of the container body is prevented from leaking from the gap between the cups.
[0014]
In addition, as a method of sealing the bottom of the container body and the base cup,A concave groove is provided on the outer peripheral surface of the bottom of the container body, an O-ring is provided in the concave groove, and the base cup is closely fitted to the bottom of the container body through the O-ring.There is also a way to do it.
[0015]
According to a second aspect of the present invention, in the first aspect of the present invention, a second reverse opening and closing of the flow path is made in the main body mouth portion of the container main body so that the reverse flow of the contents flowing out from the container main body and the inflow of external air are disabled. A valve body is provided.
[0016]
In the invention described in claim 2, when the body portion of the squeezable container body is pressed, the second check valve body that has closed the flow path is opened, and the contents are poured out. When the pressure on the container body is released, the dispensing of the contents stops, the outer layer begins to recover to its original shape due to the elastic recovery force, and the second check valve body allows the second check valve body to flow through the flow path. Blocking and preventing backflow of contents into the container main body and the intrusion of external air into the container main body, which is in a decompressed state by releasing the pressed state.
[0017]
At this time, since the inner layer remains in the reduced volume deformed state, the outer layer to be restored to the original shape and the inner layer holding the reduced volume deformed state and the gap are in a reduced pressure state, and the first check valve body Is opened, external air is introduced between the outer layer and the inner layer from the air introducing portion at the bottom of the container body, and the outer layer is quickly restored to its original shape by the introduced air and the elastic restoring force of the outer layer.
[0018]
When the outer layer is restored to its original state and the body portion of the container body is pressed again, the space between the outer layer and the inner layer is in a pressurized state, and the function of the first check valve body allows the air introduction portion and the external air to be This prevents the backflow of air introduced between the inner layer and the outer layer. For this reason, when the body part of the container body is pressed, the contents in the inner layer that has undergone volume reduction can be reliably pressurized via the air existing between the outer layer and the inner layer. 2 The check valve body opens the main body opening, and the contents are poured out from the spout.
[0019]
Claim3The invention means described in claim 1Or 2In the described invention, the base cup that is tightly fitted to the bottom of the container body has a bottomed cylindrical shape, and a vent hole for introducing external air is provided in the cup bottom of the base cup, and the first check valve body Is composed of a fixed frame that is assembled and fixed to the base cup, and a slit plate that covers the opening area of the fixed frame provided with a slit for introducing external air.
[0020]
Claim3In the described invention, the bottom of the cup is provided with a ventilation hole, and the bottom of the container body is closely fitted with a bottom-fitted cylindrical base cup, and includes a fixed frame and a slit plate provided with a slit. Since the first check valve body has the slit opposed to the vent hole and the slit plate is provided on the bottom of the cup, the bottom of the container body is stably reinforced with the base cup, and the first check valve body is simply As a structure, the manufacturing process can be facilitated, and the first check valve body can be easily assembled and fixed to the base cup.
[0021]
Claim4The invention means described in claim 1Or 2In the described invention, the base cup that is tightly fitted to the bottom of the container body has a bottomed cylindrical shape, the outside of the base cup is provided with an outside air hole for introducing outside air, and the first check valve body is A ring-shaped ring piece that is tightly fitted to the bottom of the container body and is fitted and fixed to the cylindrical wall of the base cap, and a base that can swing with the connection piece as a base end via the ring piece and the connection piece It is comprised from the valve plate which plugs the external air hole provided in the cup.
[0022]
Claim4In the described invention, the base cup that is tightly fitted to the bottom of the container body is formed into a bottomed cylindrical shape, and the bottom of the dispensing container is stably reinforced with the base cup. And the air vent is opened and closed to introduce external air between the inner layer and the outer layer to prevent backflow of the introduced air.
[0023]
Claim of this application5The means of the invention described in claim 1, 2,3 or 4In the described invention, the cut-out portion formed in the outer layer is opened along the parting line on the lower surface of the bottom plate wall at the bottom of the container body to form an air introduction portion.
[0024]
Claim5In the described invention, the laminated parison obtained by co-extrusion of the outer layer parison and the inner layer parison, which have almost no compatibility, is easily crushed by the pinch-off portion of the mold, and the bottom crack that easily occurs is left as it is. It can be used as an air introduction part, and the air introduction part can be formed in the outer layer without requiring troublesome post-processing operations.
[0025]
When the cut-off portion formed along the parting line at the bottom is opened and used as an air introduction portion, the bottom portion of the container body is in a state of bottom cracking, but in the present invention, the bottomed cylindrical base A cap is externally fitted to the bottom of the container body to reinforce the bottom of the container body and, for example, stably maintain the shape of the bottom portion of the dispensing container without causing inconvenience such as a decrease in seat function.
[0026]
Claim6Means of the described invention is claimed.5In the described invention, the base cup is provided with a pressing function portion that applies a pressing force along the parting line to the bottom plate wall of the container main body.
[0027]
Claim6In the described invention, when the base cup is externally fitted to the bottom of the container main body by the pressing function portion of the base cup, along the parting line in the cutout portion of the outer layer constituting the bottom plate wall of the container main body A slit having a bottom crack shape can be opened, and the opened slit can be used as it is as an air introduction portion.
[0028]
Claim7The invention means described in claim 1, 2, 3, 4, 5Or 6In the described invention, it has a cylindrical fitting cylinder piece with a top, and an opening cylinder piece constituting a flow path is suspended from the central portion of the top wall of the fitting cylinder piece, and the opening cylinder piece is provided on the opening cylinder piece. Provide a rod body that forms a passage part through which the content liquid flows between the two pieces, erect a sealing cylinder piece at the peripheral edge of the top wall, and closely fit the fitting cylinder piece into the main body mouth of the container body The plug body is assembled and fixed to the container body, the pouring member is tightly fitted into the seal cylinder piece through the plug body, and the pouring member is assembled and fixed to the main body opening of the container body. is there.
[0029]
Claim7In the described invention, the pouring member is assembled and fixed to the main body mouth portion of the container body through a plug body provided with a rod body that forms a passage portion for circulating contents between the plug body. When the contents are poured out, the inner layer peeled off from the outer layer is prevented from being attracted to the opening cylinder piece that exerts a strong suction force to block the opening portion. Even if only the deformation progresses, the contents can be surely held and the contents can be poured out to the end.
[0030]
Claim8Means of the described invention is claimed.7In the described invention, the second check valve body can be oscillated with the ring piece and the connecting piece as a base end through a ring piece that is assembled and fixed to a member constituting the flow path. It is comprised from the on-off valve which plugs up the opening of the opening cylinder piece of a stopper.
[0031]
Claim8In the described invention, the content in the inner layer is surely pressurized by the pressure of the body portion of the container body, and the on-off valve that closes the body mouth portion of the container body is opened, and the content liquid is injected. While being able to pour out from the outlet, the on-off valve closes the main body mouth of the container body due to the decompression of the inner layer by stopping the press of the body of the container body, ensuring the entry of external air into the inner layer To prevent.
[0032]
Claim9The invention means described in claims 1, 2, 3, 4, 5, 6Or 7In the described invention, the main body mouth portion of the container main body has a spout for dropping the contents at the upper end, and a pouring member having a dripping cylinder piece that continuously forms a flow path from the main body mouth portion is provided. Is.
[0033]
Claim9In the described invention, the contents can be dropped in the form of droplets, so that it can be used as a container for eye drops or the like.
[0034]
Claim10Means of the described invention is claimed.9In the described invention, the second check valve body is a slit valve body provided with an assembled cylinder for tightly fitting and fixing to the extraction member, and having a slit opening at the tip. .
[0035]
Claim10In the described invention, when the inside of the container body is in a pressurized state, the slit opening at the tip of the assembled cylinder is opened, and the contents can be poured out. When the pressurized state disappears, the slit opening closes, and even if the inside of the container body is in a decompressed state, the check valve prevents the backflow of the contents into the container body and prevents the entry of external air Can be easily provided on the extraction member.
[0036]
Claim11Means of the described invention is claimed.9 or 10In the described invention, the content is an eye drop container.
[0037]
Claim11In the described invention, since the outer layer of the container body is quickly restored to the original shape by the function of the first check valve body even in a small container, the operability is good, and the second check valve body Due to its function, external air or the like does not enter the inside, so it has excellent hygiene and is optimal as a container for eye drops.
[0038]
Claim12In the described invention, claims 1, 2, 3, 4, 5, 6, 7Or 8In the described invention, an applicator for applying contents to an object is provided in a main body mouth portion of a container main body.
[0039]
Claim12In the described invention, the content poured out from the spout can be applied directly to the object from the application body by pressing the body portion of the container body.
[0040]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows the structure of an embodiment of a dispensing container according to the present invention. The dispensing container includes a container body 1, a dispensing member 14 assembled to the body opening 6 of the container body 1, a slit valve that is the second check valve body 30 assembled inside the dispensing member 14, and the container body 1. And a first check valve body 50 fitted and fixed in the base cup 40. An overcap 60 is fitted on the container body 1 and the extraction member 14.
[0041]
The container body 1 is formed by laminating an outer layer 2 that can be elastically deformed by pressing and recovery of the deformation, and an inner layer 3 that is made of a synthetic resin having low compatibility with the outer layer 2 and can be freely deformed and peeled. It has a laminated structure, and a short cylindrical main body mouth portion 6 is provided on the upper portion of the trunk portion 4 via a shoulder portion 5.
[0042]
A pouring member 14, which is a dripping cylinder for dripping the eye drops, which are the contents in the container main body 1, is assembled and fixed to the main body opening 6 of the container main body 1. The extraction member 14 includes an assembled cylinder piece 15 that is tightly fitted into the main body opening 6, a flange 16 that is mounted on the upper end surface of the main body opening 6 that is provided around the assembled cylinder piece 15, and an upper portion from the flange 16. The dropping cylinder piece 17 is formed in a liquid droplet shape so as to be gradually reduced in diameter, and communicates with the main body mouth portion 6 to form a flow path 18 of the contents, and the contents opened at the upper end of the dropping cylinder piece 17 Are provided.
[0043]
A second check valve body 30 is provided in the flow path 18 of the dispensing member 14. As shown in FIG. 2, the second check valve body 30 is provided at the tip of the assembled cylinder 31 with a bullet-shaped assembled cylinder 31 that is assembled and fixed to the extraction member 14 that forms the flow path 18. The slit valve is configured by providing a slit opening 31a.
[0044]
The second check valve body 30 has a function as a check valve that disables the backflow of contents and the inflow of outside air. That is, when the inner layer 3 is in a pressurized state by the pressing of the outer layer 2, the slit opening 31a is opened by the pressure inside the container body 1, and the contents are dropped from the spout 17a through the slit opening 31a. To pour out. When the pressing of the outer layer 2 is released and the pressurized state in the container body 1 disappears, a slit formed in the top end of the assembled cylinder 31 by the function of the second check valve body 30 Even if the opening 31a is closed and the inner layer 3 is in a depressurized state, it is impossible for the outside air to enter the inner layer 3.
[0045]
At the lower end of the body portion 4 of the container body 1, a recessed engagement portion 8 is provided around the step portion 7, and a bottomed cylindrical bottom portion 9 having a diameter reduced from the engagement portion 8 is provided. It is connected continuously. In the outer layer 2 of the bottom portion 9, an air introduction portion 12 through which external air flows between the inner layer 3 and the outer layer 2 is opened.
[0046]
A bottomed cylindrical base cup 40 that is externally fitted to the bottom 9 of the container body 1 includes a cylindrical wall 41 that is externally fitted to the bottom 9 and a cup bottom 43 that is provided with a vent hole 44 that serves as an inflow path for external air. It is made up. A locking ridge 42 that engages with the engaging portion 8 of the bottom portion 9 of the container body 1 is provided on the inner peripheral surface upper portion of the cylindrical wall 41, and when the cylindrical wall 41 is externally fitted to the bottom portion 9 of the container main body 1, The engaging portion 8 and the locking protrusion 42 are engaged, and the upper end of the cylindrical wall 41 is configured to substantially abut against the step portion 7 of the bottom portion 9.
[0047]
FIG. 3 is a cross-sectional view taken along the line XX in FIG. 1 and is a bottom view in which the cylindrical wall 41 of the base cup 40 is externally fitted to the bottom 9 of the container body 1. The bottom portion 9 of the container body 1 has a cut-out portion 11 which is formed by splitting the bottom portion of the bottom plate wall 10 constituting the bottom surface of the container body 1 into a bottom portion in which a parison formed by the inner layer 3 and the outer layer 2 is cut and sealed. The air introduction part 12 is formed.
[0048]
The air introduction part 12 is formed by pressing the bottom plate wall 10 from the extending direction of the parting line P and opening the cut-out part 11 in a bottom crack shape. It is also possible to open the air introduction part 12 substantially at the same time when the pressing function part 45 is provided on the cylindrical wall 41 of the base cup 40 and the cylindrical wall 41 is externally fitted to the bottom part 9.
[0049]
That is, the cylindrical wall 41 has a dimension on the parting line P that is longer than the dimension perpendicular to the parting line P, and the bottom plate wall 10 of the container body 1 has an elliptical shape. A pressing function portion 45 having a true cylindrical shape having a diameter smaller than the diameter along the parting line P is provided.
[0050]
The bottom portion 9 of the container body 1 is formed in a protruding shape with a cut-out portion 11 that is connected to the bottom plate wall 10 and is sealed with the inner layer 3 and the outer layer 2 along the parting line P (FIG. 4). (See (a)).
[0051]
When the cylindrical wall 41 provided with the pressing function portion 45 is forcibly fitted to the bottom portion 9 of the container body 1, the pressing function portion 45 presses the biting portion 11 along the parting line P, and the biting portion 11 is pressed. A slit is opened in a bottom crack shape (see FIG. 4B). This opened slit is used as the air introduction part 12.
[0052]
When the body part 4 is released from being pressed into the base cup 40, the vent hole 44 is opened so that external air flows from the air introduction part 12 between the outer layer 2 and the inner layer 3, and when the body part 4 is pressed. The first check valve body 50 that closes the vent hole 44 and prevents the backflow of the introduced air is provided.
[0053]
FIG. 5 is a plan view showing an embodiment of the first check valve body 50. The first check valve body 50 includes a ring-shaped ring piece 51 that is tightly fitted and assembled to the cylindrical wall 41 of the base cup 40, and a cup having an air hole 44 opened through the ring piece 51 and the connecting piece 52. A disc-shaped on-off valve 53 is provided in close contact with the upper surface of the bottom 43. The on-off valve 53 can swing in the vertical direction with the connecting piece 52 as a base end, and functions as a check valve.
[0054]
As shown in FIG. 6, not only the first check valve body 50 having the structure shown in FIG. 5 but also the first check valve body 50 is assembled and fixed to the lower end of the cylindrical wall 41 of the base cup 40. And a slit valve body that closes the top surface of the cup bottom 43 with a cross-shaped slit 57 formed on the slit plate 58 that closes the opening of the fixed frame 56, with the slit 57 facing the vent hole 44. good. Further, the present invention is not limited to the structure described above, and any structure that serves as a check valve may be used.
[0055]
FIG. 7 is a view showing an operation state of the dispensing container when the body part 4 of the container body 1 is squeezed. As shown in FIG. 7, when the body 4 is pressed, the inside layer 3 is pressurized, the slit opening 31 a of the second check valve body 30, which is a slit valve, is opened, and the eye drops that are the contents are removed. The liquid is poured out from the spout 17a.
[0056]
When the pressing of the body portion 4 is released, the inner layer 3 that has been in a pressurized state is in a reduced pressure state and acts to suck external air. At this time, the function of the second check valve body 30 is As a result, the slit opening 31a is closed, so that external air is not sucked into the inner layer 3 and the backflow of the contents is prevented.
[0057]
Further, when the pressing of the body portion 4 is released, the outer layer 2 tries to elastically restore to the original shape by the self-shape retaining ability, whereas the inner layer 3 does not suck the outside air and becomes deflated. Since the volume-reducing deformation remains, the outer layer 2 tries to be elastically restored by forming a gap with the inner layer 3 (see FIG. 8A).
[0058]
Due to the force of elastic recovery of the outer layer 2, the pressure between the outer layer 2 and the inner layer 3 is reduced, and the on-off valve 53 of the first check valve body 50 moves toward the bottom 9 with the connecting piece 52 as the base end. The air hole 44 of the base cup 40 is opened, and external air is introduced into the air introduction part 12 through the air hole 44, and the outside air flows between the outer layer 2 and the inner layer 3 (FIG. 8B). )reference).
[0059]
When the body portion 4 of the container body 1 is pressed again, the space between the outer layer 2 and the inner layer 3 is pressurized, so that the vent hole 44 is blocked by the on-off valve 53 by the function of the first check valve body 50. The air introduction unit 12 and the outside air are blocked from flowing, and the backflow of the air introduced between the outer layer 2 and the inner layer 3 is prevented.
[0060]
For this reason, the content liquid in the inner layer 3 that has been deflated and deformed is reliably pressurized through the air existing between the outer layer 2 and the inner layer 3 by the pressing of the outer layer 2, and the second check valve body 30 is again pressed. The slit opening 31a is opened, and the contents are poured out from the dropping port 31a.
[0061]
FIG. 9 shows a second embodiment of the dispensing container according to the present invention, in which an enlarged stepped portion 7 is provided on the bottom 9 of the container main body 1, and on the outer periphery of the cylindrical wall 41 of the base cup 40 that fits outside the bottom 9. A dish-like wall 46 that supports the peripheral edge of the stepped portion 7 from below is erected from the cup bottom 43.
[0062]
Since the bottom 9 of the container body 1 is double-covered by the cylindrical wall 41 and the dish-like wall 46 of the base cup 40, the reinforcing function as the outer shell of the base cup 40 is further improved. The bottom 9 of the container body 1 is mechanically stable, and there is no inconvenience such as buckling of the bottom 9.
[0063]
FIG. 10 is a view including a partial cross-sectional view showing a third embodiment of the dispensing container of the present invention.
As shown in FIG. 10, a stopper body 20 provided with a rod body 24 that extends to a substantially intermediate position in the longitudinal direction in the container body 1 is assembled and fixed to the mouth portion 6 of the container body 1. The length of the rod body 24 is not limited to the middle position in the longitudinal direction in the container body 1, and the rod body may be provided as long as it has a passage portion that circulates the contents between the opening cylinder piece 23. Even if the lower end portion of 24 has a length in the vicinity of the plug body 20, the lower end portion of the rod body 24 may reach the bottom portion 9.
[0064]
The plug body 20 has a top cylindrical fitting tube piece 21 which is fitted into the mouth portion 6 of the container main body 1 to fix the plug body 20 and assembled to the central portion of the top wall 22 of the fitting tube piece 21. The opening cylinder piece 23 is suspended, and the opening cylinder piece 23 is provided with a rod body 24 that intersects with the opening cylinder piece 23 so as to form a flow path through which the content liquid flows. See), and the seal cylinder piece 25 is erected from the peripheral edge of the top wall 22. The rod body 24 may have a straight end as long as it can form a passage portion with the opening cylinder piece 23 as well as the end face cross shape. It may be a thing and the shape of the rod 24 is not ask | required.
[0065]
The dispensing member 14 is tightly assembled and fixed by fitting the assembled cylinder piece 15 into the seal cylinder piece 25 of the plug 11. The rod 24 reliably holds the flow path 18 through which the content flows even when the deformation of the inner layer 3 progresses as the content decreases.
[0066]
Inside the seal cylinder piece 25 of the plug body 20, a ring piece 32 that is tightly fitted and assembled in the seal cylinder piece 25, and the ring piece 32 via a connecting piece 33, is swingably movable. A second check valve body 30 including an on-off valve 34 that closes the opening cylinder piece 23 is provided.
[0067]
Further, in the base cup 40, a short cylindrical ring piece 51 whose upper end is in contact with the bottom plate wall 10 of the container body 1, and the connecting piece 52 as a base end through the connecting piece 52 from the ring piece 51. An open / close valve 53 that is swingably connected and closes the top surface of the cup bottom 43 and closes the vent hole 44, and a packing piece 55 erected from the upper end of the ring piece 51 via an outer flange piece 54 are elastically connected. A first check valve body 50 integrally formed of a soft material is provided.
[0068]
The packing piece 55 is fitted on the bottom portion 9 of the container body 1 and is fitted on the cylindrical wall 41 of the base cup 40, and the packing piece 55 made of a soft elastic material is held between the bottom portion 9 and the cylindrical wall 41. Therefore, the outside air does not enter between the bottom portion 9 and the cylinder wall 41, and the air introduced from the vent hole 44 does not leak to the outside.
[0069]
That is, by the check valve function of the first check valve body 50, the outside air introduced into the inside through the vent hole 44 is securely held between the inner layer 3 and the outer layer 2 that have been reduced in volume without leaking outside. (See FIG. 12).
[0070]
Further, when the container body 1 is squeezed, air is not leaked from the gap of the base cup 10 that is externally fitted to the bottom portion 9 of the container body 1, and the first check valve body 50 allows the passage. The backflow of air from the pores 44 can be prevented, the contents can be reliably pressurized by pressing the outer layer 2, and the smooth dispensing operation of the dispensing container can be maintained.
[0071]
As shown in FIG. 13, a concave groove 8 a is provided around the lower portion of the engaging portion 8 of the bottom portion 9 of the container body 1, an O-ring 13 is externally fitted into the concave groove 8 a, and the O-ring 13 is connected to the cylindrical wall 41. The base cup 40 may be tightly fitted to the bottom portion 9 in close contact with the inner peripheral surface.
[0072]
In addition, the main body mouth portion 6 of the container main body 1 includes not only the pouring member 14 provided with the spout 17a for dropping the contents into droplets but also the pouring member 14 provided with the brush-like application body 61. It can also be assembled.
[0073]
As shown in FIG. 14, a thread is engraved on the outer peripheral surface of the seal cylinder piece 25 of the plug body 20. The dispensing member 14 is provided in a manner such that an assembled cylinder piece 15 that is fitted into and attached to the seal cylinder piece 25 is suspended, and is engaged with a screw thread of the seal cylinder piece 25 from the assembled cylinder piece 15 via a flange 16. A connecting cylinder piece 15a provided with a stop strip is provided, a tapered cylinder piece 17b that gradually decreases in diameter is provided on the inner circumference of the assembled cylinder piece 15, and a spout 17a is opened at the bottom of the tapered cylinder 17b. The brush-like application body 61 planted on the tapered upper surface of the tapered cylindrical piece 17b is provided. The application body 61 may be a cap body provided with not only a brush-like planted hair but also a pouring hole for pouring the contents and a comb tooth piece, and the brushed member may be a main body port of the container body. Other shapes may be used as described later.
[0074]
Since the dispensing body 61 is provided on the dispensing member 14, the container body 1 can be squeezed and the contents to be poured out from the spout 17a can be directly applied to the object from the brush-shaped coating body 61. The convenience and operability of the dispensing container are improved. The applicator 61 is not limited to a brush-like one, but is suitable for the use of contents stored in the dispensing container, such as a porous sponge-like one, and a tip having a spherical arc shape that exerts a massage effect. It is desirable to provide an application body having a function.
[0075]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
In the first aspect of the invention, the function of the first check valve body allows air to quickly enter between the outer layer and the peeled inner layer, so that the outer layer quickly returns to its original shape and is good. Can maintain a good external shape.
[0076]
Even if the air introduction part is opened at the bottom of the container main body, the base cup is externally fitted to reinforce the bottom of the container main body, so that the shape of the bottom part of the container main body can be stably maintained.
[0077]
Also,Since the first check valve body is provided with a packing piece integrally formed of a soft elastic material, air leakage from portions other than the vent hole is prevented, and the air flowing between the inner layer and the outer layer that have undergone volume reduction deformation is prevented. Leakage can be reliably prevented, and a reliable and stable content dispensing operation can be obtained.
[0078]
In the invention according to claim 2, when the container body is squeezed and deformed by the function of the second check valve, the contents are poured out, and when the pressure on the container body is released, the contents flow back into the container body. In addition, entry of outside air can be prevented. In addition, since the space between the inner layer and the outer layer that have undergone volume reduction is filled with air due to the function of the first check valve, the content is reliably pressurized by pressing the outer layer, and the content is poured smoothly to the end. Therefore, it is possible to provide a dispensing container having excellent dispensing operability.
[0079]
Claim3In the described invention, the base cup is provided with a vent hole, the base cup is formed into a bottomed cylindrical shape that is tightly fitted to the bottom of the container body, and the first check valve body is a fixed frame, Since it has a simple structure consisting of a slit plate with a slit, the base cup can reinforce the container body in a cracked bottom, maintain the function of the dispensing container, and easily manufacture a check valve body Since it can be processed and can be easily assembled and fixed to the base cup, a highly productive dispensing container can be provided.
[0080]
Claim4In the described invention, since the base cup has a bottomed cylindrical shape that is tightly fitted to the bottom of the container body, the base cup is reinforced with the base cup, and the first check valve body is Since the ring piece, the connecting piece, and the open / close valve are used, the check valve function can be easily attached to the vent hole of the base cup.
[0081]
Claim5In the described invention, since the opening portion of the cutout portion formed in the outer layer along the parting line is used as the air introduction portion, it is easily obtained by the laminated structure of the outer layer portion and the inner layer portion having almost no compatibility. The bottom crack that occurs can be used as it is as an air inlet, reducing the number of processing steps and providing a highly productive dispensing container without the need to change the design of the molding machine or troublesome post-processing operations. can do.
[0082]
Claim6In the described invention, the base cup is provided with the pressing function portion that applies the pressing force along the parting line, so that the air introduction portion can be formed in one process of externally assembling the base cup. This makes it possible to provide a dispensing container with improved productivity by reducing the number of processes.
[0083]
Claim7In the described invention, since the dropping cylinder piece is assembled and fixed to the main body mouth portion of the container body through the plug body provided with the rod body, the inner layer peeled from the outer layer blocks the opening portion.TheIt is possible to prevent and secure a passage portion that serves as a flow path for the content liquid, so that the content can be smoothly poured out to the end.
[0084]
Claim8In the described invention, since the second check valve body has a simple configuration including a ring piece, a connecting piece, and an on-off valve, the check valve body can be easily formed, A check valve function can be easily attached. In addition, the first check valve body and the second check valve body can be shared, and the productivity of the dispensing container can be improved.
[0085]
Claim9In the described invention, since the pouring member for dripping the contents is provided at the main body mouth portion of the container body, the contents can be poured in the form of droplets, and the contents for droplets etc. Suitable for containers dripped onto
[0086]
Claim10In the described invention, since the second check valve body is a slit valve body including the assembly cylinder piece and the slit formed at the tip of the assembly cylinder piece, the second check valve body can be easily attached to the dispensing member. The check valve body can be assembled and fixed, and the safety and hygiene of the contents can be maintained by the function of the second check valve body.
[0087]
Claim11In the described invention, the functions of the first check valve and the second check valve can prevent foreign matters such as germs in the outside or foreign matter from entering the container body, so that safety is ensured. It can be provided as a container for eye drops with excellent hygiene.
[0088]
Claim12In the described invention, there is provided an application body that can directly apply the contents to the target object from the application body provided on the dispensing member and has a function suitable for the use of the contents stored in the container body. A dispensing container that is provided on the dispensing member and has good operability and high convenience can be provided.
[Brief description of the drawings]
FIG. 1 is a half longitudinal front view showing a state where an overcap is placed on an embodiment of a dispensing container of the present invention.
FIG. 2 is a perspective view showing an embodiment of a second check valve body of the present invention.
FIG. 3 is a cross-sectional view taken along arrow XX in FIG. 1 showing the bottom of the container body.
4A is a partial vertical cross-sectional view of the bottom of the container main body showing the cut-out portion on the parting line, and FIG. 4B is a partial vertical cross-sectional view of the bottom of the container main body showing the air introduction portion having a slit opening in the cut-out portion. Figure.
FIG. 5 is a plan view showing an embodiment of a first check valve body.
FIG. 6 is a plan view showing another embodiment of the first check valve body.
7 is a half longitudinal sectional view showing a pressing operation state of the dispensing container shown in FIG. 1. FIG.
8A is a semi-longitudinal sectional view showing an operation state after releasing the pressing of the dispensing container, and FIG. 8B is a partially enlarged view thereof.
FIG. 9 is a half longitudinal front view showing a state in which an overcap is put on the second embodiment of the dispensing container of the present invention.
FIG. 10 is a half longitudinal front view showing a third embodiment of the dispensing container of the present invention with an overcap.
FIG. 11 is a bottom view of the plug of the present invention.
12 is a semi-longitudinal cross-sectional view showing an operating state after releasing the pressing of the dispensing container shown in FIG. 10;
FIG. 13 is a half longitudinal sectional view of a base cap and an O-ring assembled to the bottom, showing an embodiment of the bottom of the dispensing container of the present invention.
FIG. 14 shows a fourth embodiment of the dispensing container of the present invention, and is an upper half vertical sectional view of the dispensing container provided with an application body.
[Explanation of symbols]
1. Container body
2. Outer layer
3. Inner layer
4). Trunk
5. Shoulder
6). Body mouth
7. Step
8). Engagement part
8a. Ditch
9. bottom
10. Bottom plate wall
11. Cut-out part
12 Air introduction part
13. O-ring
14 Extraction material
15. Cylinder piece with assembly
15a. Connecting cylinder piece
16. Flange
17. Dripping cylinder
17a. Outlet
17b. Tapered cylinder
18. Flow path
20. Plug
21. Insertion cylinder piece
22. Top wall
23. Opening cylinder piece
24. Rod
25. Seal cylinder
30. Second check valve body
31. Tube with assembly
31a. Slit opening
32. Ring piece
33. Connecting piece
34. On-off valve
40. Base cup
41. Cylinder wall
42. Locking ridge
43. Cup bottom
44. Vent
45. Pressing function part
46. Dish wall
50. First check valve body
51. Ring piece
52. Connecting piece
53. On-off valve
54. Outer casing
55. Packing pieces
56. Fixed frame
57. slit
58. Slit plate
60. Overcap
61. Application body
P. Parting line

Claims (12)

The inner layer (3) that can be peeled off from the outer layer (2) is laminated on the inner surface of the outer layer (2), and the main body mouth portion (6) that forms the flow path (18) of the contents is provided on the upper portion, and has a bottomed cylindrical shape. Squeeze deformation in which an air introduction part (12) for sucking outside air is provided between the outer layer (2) and the inner layer (3) in a part of the outer layer (2) constituting the bottom part (9) of A possible container body (1), a base cup (40) fitted to the bottom part (9), and an external air to the air introduction part (12) fixed to the base cup (40). And a first check valve body (50) for preventing the backflow of the introduced air,
The first check valve body (50) is fitted on the bottom (9) of the container body (1), and is fitted on the cylindrical wall (41) of the base cup (40), and the base cup (40) is fitted. A pouring container in which a packing piece (55) that is tightly fitted and fitted to the bottom (9) of the container body (1) is integrally formed of an elastic soft material .   A second check valve body that opens and closes the flow path (18) in the main body opening (6) of the container main body (1) so that the backflow of the contents flowing out of the container main body (1) and the inflow of external air cannot be performed. The dispensing container according to claim 1, wherein (30) is provided. A base cup (40) closely fitted to the bottom (9) of the container body (1) is formed into a bottomed cylindrical shape, and a vent (44) for introducing outside air is provided in the cup bottom (43). 1 Opening area of the fixed frame (56) provided with a fixed frame (56) for assembling and fixing the check valve body (50) to the base cup (40) and a slit (57) for introducing external air The pouring container according to claim 1 or 2, comprising a slit plate (58) for covering. The base cup (40) tightly fitted to the bottom (9) of the container body (1) has a bottomed cylindrical shape, and a vent (44) for introducing external air is provided in the cup bottom (43). The ring-shaped ring piece (51) for fitting and fixing the first check valve body (50) to the cylindrical wall (41) of the base cup (40), and the ring piece (51) and the connecting piece (52) through it, the connecting piece (52) as a base end swingably said spout container according to claim 1 or 2, wherein the structure from the ventilation holes (44) of the closing-off valve (53). An opening portion (11) formed in the outer layer (2) is opened along the parting line (P) on the lower surface of the bottom plate wall (10) of the bottom portion (9) of the container body (1) to form an air introduction portion. The dispensing container according to claim 1, 2, 3 or 4, which is (15). The base cup (40) according to claim 5, wherein a pressing function part (45) for applying a pressing force along the parting line (P) to the bottom plate wall (10) of the container body (1) is provided. Dispensing container. An open cylindrical piece (23) that has a flow path (18) is suspended from the center of the top wall (22) of the fitted cylindrical piece (21). The opening cylinder piece (23) is provided with a rod (24) that forms a passage portion through which the content liquid flows between the opening cylinder piece (23), and is provided at the peripheral edge of the top wall (22). A plug body that erects a seal cylinder piece (25), tightly fits the fitting cylinder piece (21) into the body opening (6) of the container body (1), and is assembled and fixed to the container body (1). (20) according to claim 1, 2, 3, 4 or according 6 dispensing container provided. The second check valve body (30) is coupled to the member constituting the flow path (18) by means of a ring piece (32), the ring piece (32) and the coupling piece (33). 8. The dispensing container according to claim 7, comprising an opening / closing valve (34) having a piece (33) as a base end and slidably closing an opening of an opening cylinder piece (23) of the plug (20). A dripping cylinder having a spout (17a) for dripping contents at the upper end of the main body mouth portion (6) of the container main body (1), and constituting a flow path (18) continuously from the main body mouth portion (6). The pour container according to claim 1, 2, 3, 4, 5, 6 or 7, wherein a pour member (14) having a piece (17) is provided. A slit valve body comprising an assembled cylinder (31) for tightly fitting and fixing the second check valve body (30) to the extraction member (14), and having a slit opening (31a) at the tip The dispensing container according to claim 9 . The dispensing container according to claim 9 or 10 , wherein the contents are eye drops. The application body (61) which apply | coats the content with respect to a target object was provided in the main-body mouth part (6) of the container main body (1), The 1, 2, 3, 4, 5, 6, 7 or 8 The dispensing container as described.

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