JP5714223B2 - Container with pump - Google Patents

Description

  The present invention relates to a container with a pump in which the middle dish rises as the filling capacity of the contents decreases, and in particular, avoids dropping of the middle dish due to removal of the pump when replacing the container, It is intended to realize stable discharge of contents while reducing the number of pump priming times.

  Many containers with cosmetics, hair styling, shampoo, rinse, etc. that are equipped with pumps are marketed regardless of the handy type or the stationary type, so that the contents in the container are hygienic and efficient. Can be poured out into

  As a conventional container with a pump, the suction port of the pump is positioned immediately below the mouth of the container, and the contents of the container are reduced and deformed as the contents are taken out. A container or the like that slides the inner dish toward the suction port of the pump as the filling amount of the contents decreases by arranging the inner dish in the container (see, for example, Patent Document 1), in particular, In a container that slides the tray toward the suction port of the pump, when the pump is removed from the container body in order to replace the container, the inner dish must be pulled out while adhering to the cylinder bottom wall of the pump. As a result, the contents may hang down and dirty hands, or the inner plate may fall off and the surroundings may be stained with the contents.

  In addition, this type of container is not enough to fill the contents, and when an air layer is formed in the filling space, even if the pump is primed, the air can only be sucked in. Is likely to cause malfunction of the pump, and the contents cannot be discharged unless more priming is performed (increase in the number of priming immediately after refilling the contents), and there is still room for improvement. It was left.

No. 7-54125

  An object of the present invention is to provide a novel container with a pump that prevents the contents of the inner dish from adhering to the pump and can discharge the contents with a slight priming even when an air layer is formed in the filling space. There is a place to propose.

The present invention has an upper end opening, a container body that forms a filling space for contents inside by cooperating with a cylindrical body that surrounds the edge of the bottom plate, and is fixed at the upper end opening of the container body. A pump to be held and a top cover located at the top of the pump. The pump is operated by repeatedly pushing and returning the top cover. A container with a pump provided with a pressing head for discharging from the opening of the top cover,
The pump has a cylinder having a suction port for contents at the bottom, a casing integrally connected to the outer wall of the cylinder, and a screw portion provided on the outer wall of the casing,
The container body has an opening that allows the suction port of the pump to face the filling space, and is provided with an inner lid that is fixedly held in association with the protruding end of the cylindrical body,
The inner lid is integrally connected to a partition wall that prevents the inner tray from moving up and down, an annular protrusion that is provided in the partition wall and surrounds the opening of the inner lid, and an edge of the partition wall. It consists of an annular peripheral wall that engages inside,
Provided on the inner wall of the annular peripheral wall is a threaded portion that engages with a threaded portion of the casing and holds the pump fixedly;
The inner lid is non-rotatably connected to the cylinder by a vertical rib and a vertical groove into which the vertical rib is fitted .
The pump is disposed in an annular recess in which the bottom wall of the casing is recessed upward, and the lower surface of the pump is brought into contact with the upper surface of the annular protrusion when the pump is fixedly held on the inner lid. It is a container with a pump characterized by having packing which maintains the said filling space liquid-tight .

  The suction port of the pump is provided with a short cylindrical body that extends through the opening of the inner lid and extends into the filling space of the contents, and the short cylindrical body is inserted into the middle dish so that the upper surface of the middle dish and the lower surface of the inner lid It is desirable to provide a recess that prevents the gaps from abutting each other.

  Since an inner lid fixed to the container body is provided between the pump and the inner pan, the pump and the inner pan are not in direct contact with each other. Therefore, when removing the pump, the inner pan is attached to the pump. It will not be done.

  By providing a short cylinder at the suction port of the pump, the short cylinder directly reaches the contents even when the contents are not filled in the filling space and a gap is formed. The pump does not suck the air present in the gap, and the contents can be discharged with a slight priming.

It is the figure which showed embodiment of the container with a pump according to this invention in the cross section. It is the figure which showed the state which removed the pump from the container main body about the container with a pump shown in FIG. It is the figure which showed the structural example of the conventional container with a pump. It is the figure which showed other embodiment of the container with a pump according to this invention. The figure which showed other embodiment of the container with a pump according to this invention (The left half is shown in the state which pushed in the press head from the centerline, and the right half shows the state before pushing in the press head. It is shown.)

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a side view (sectional view) of a container with a pump according to the present invention. In the figure, 1 is a container body. The container body 1 has an upper end opening 1a, and is filled with contents inside in cooperation with a cylindrical body 1c (molded integrally with the bottom plate 1b) that surrounds the edge of the bottom plate 1b. A space M is formed.

  In addition, 2 is an outside air introduction hole provided in the bottom plate 1 b of the container body 1, and 3 is a pump that discharges the contents in the container body 1.

  The pump 3 has a cylindrical cylinder 3a having a suction port h for contents at the bottom, a piston 3b slidably disposed in the cylinder 3a, and the other end (upper end) inserted through a through hole of the piston 3b. A hollow stem 3c that is connected to a cylinder of a pressing head, which will be described later, a retaining cover 3d that is fixedly held at the upper opening end of the cylinder 3a and prevents the piston 3b from coming out of the cylinder 3a, and a suction port in the cylinder 3a a valve body (e.g., a three-point valve) 3e that is disposed at h and that is opened only when the contents are sucked, and a recess that installs and houses the above-described components of the pump 3 on its upper surface. It is comprised from the casing 3f which makes a cross-sectional shape.

The outer edge of the retaining cover 3d is provided so as to surround the annular grooves 3d ₁ , 3d ₂ provided to surround the cylinder 3a and open upward and downward, and the annular grooves 3d ₁ , 3d ₂ , An upwardly open annular recess 3d ₃ that forms a spring installation site (seat surface), which will be described later, a cylindrical body 3d ₄ that stands up at the edge thereof, and an upper end of the cylindrical body 3d ₄ that are integrally connected A claw portion 3d ₅ (which may be annular or provided in plural) with the portion oriented obliquely downward is integrally formed.

Further, the casing 3f, a tubular member 3f ₁ to achieve integration (integral coupling) between該抜only stop cover 3d is fitted into the annular groove 3d ₂ of retaining cover 3d, the annular concave該抜only stop cover 3d a bottom wall 3f ₂ in contact with the lower surface of Tokoro 3d _3, a tubular member 3f ₃ having a threaded portion n to rise its outer wall from the edge of the bottom wall 3f _2, together at upper outer wall of the cylindrical body 3f ₃ A flange portion 3f _{4 that} is connected and abuts on the upper end opening 1a of the container body 1 is formed.

Reference numeral 4 denotes a pressing head for operating the pump 3. This pressing head 4 has a disk-shaped top cover (diameter with a waved edge) 4a having a diameter that enters the inside of the cylindrical body 3f ₃ of the casing 3f, and the top surface. integrally provided in the bottom surface of the cover 4a, mutual a cylindrical body 4b which connects through such engagement means of the undercut at the upper end of the hollow stem 3c of the pump 3, a top cover 4a and an annular recess 3d ₃ disposed between the guide performing the spring 4c for elastically supporting the top panel Menpeki 4a, is suspended in a lower surface of the top cover 4a, the positioning of the pump 3 enters slidably in an annular groove 3d ₁ of retaining member 3d (may be one ribbed, may also be. those tubular) and 4d, suspended from the lower surface of the top cover 4a so as to surround the guide 4d, along the inner wall of the cylindrical body 3d ₄ of retaining cover 3d Sliding up and down It comprises a possible cylinder 4e and a peripheral wall 4f that is integrally connected to the outer edge of the top cover 4a and hangs down from that portion.

The inner side wall of the peripheral wall 4f, and cyclic or a plurality of protrusions 4f ₁ is provided with the protrusion 4f _1, is retained the pressing head 4 claw portion 3d ₅ is engaged with the stopper cover 3d are (spring 4c is set to an urging force of a degree that does not come off from the pawl portion 3d ₄ of the press head 4 retaining cover 3d.).

In the center of the top surface the cover 4a of the press head 4 has openings 4a ₁ is formed, blocking the the open hole 4a ₁ in a steady posture not pushed the press head 4 in the opening 4a ₁ However, the valve body 4a ₂ that opens the opening 4a ₁ is provided only when the pressing head 4 is pushed in. The valve body 4a ₂ includes a main body portion 4a ₂₁ that is prevented from being removed in the passage of the opening 4a ₁ and a valve portion 4a ₂₂ that is elastically deformably connected to the main body portion 4a _{21. At} least the valve portion 4a ₂₂ is formed of an elastic member such as rubber or a soft material such as an elastomer.

  The piston 3b of the pump 3 is disposed in a space formed between the flange portion t provided at the distal end portion of the hollow stem 3c and the distal end of the cylindrical body 4b. In this space, the piston 3b Is slightly slid independently, and when pushed by the pressing head 4 (when the contents are discharged), the tip of the cylinder 4b comes into contact with the rear end (upper end) of the piston 3b and While the piston 3b slides toward the suction port h of the cylinder 3a, when the pressing head 4 is restored to the initial state (when the contents are sucked), the annular body t provided at the tip of the hollow stem 3c is The piston 3b slides toward the upper side of the cylinder 3a in contact with the tip (lower end) of the piston 3b.

  Reference numeral 5 denotes a middle dish that is arranged in the filling space M of the container body 1 and slides toward the upper end opening 1a as the filling capacity of the contents decreases. The inner plate 5 is provided with a sliding member 5 a that is in contact with the inner peripheral wall of the cylindrical body 1 c of the container body 1 at the outer edge thereof.

  Reference numeral 6 denotes an inner lid that is fixedly held by being engaged with the cylindrical body 1c in the upper end opening 1a of the container body 1 (may be screwed or engaged by undercut). The inner lid 6 is non-rotatably connected to the cylindrical body 1c by a vertical rib and a vertical groove into which the vertical rib is fitted, and has a bottom wall (partition wall) having a large surface area that covers the upper end opening 1a of the container body 1. ) 6a, an annular peripheral wall 6b that stands up (integrated connection) at the edge of the bottom wall 6a, a flange 6c that is provided at the protruding end of the annular peripheral wall 6b and abuts on the protruding end of the cylindrical body 1c, and the bottom wall An opening 6d that is formed at the center of 6a and faces only the suction port h of the pump 3 toward the filling space M is provided.

The bottom wall 6a of the inner lid 6 has a function as a partition wall that prevents contact between the inner tray 5 and the casing 3f of the pump 3. The inner wall of the annular peripheral wall 6b has a cylindrical body of the casing 3f. threaded portion n ₁ that engages is provided on the threaded portion n which is formed to 3f _3, it shows the case of the undercut engagement in the example inside engagement (shown in its outer wall of the container body 1 the cylindrical body 1c but it may be engaged by the screw.) and have, the packing P for maintaining a liquid-tight manner is arranged therebetween the annular recess 3f ₅ annular projection 6a ₁ and the casing 3f of the bottom wall 6a ing.

Further, 7, upper ends detachably undercut engagement of the cylindrical body 3f ₃ of the casing 3f (or in engagement by screws.) And a cover cap covers the press head 4.

  In the container with a pump configured as described above, when a pressing force is applied to the top cover 4a of the pressing head 4, the top cover 4a is pushed down against the biasing force of the spring 4c, and the piston 3b Then, it is pressed by the cylinder 4b and slides toward the bottom of the cylinder 3a.

  After the piston 3b slides to the lowest end (bottom dead center) of the cylinder 3a, when the pushing force applied to the pushing head 4 is removed, the pushing head 4 returns to a steady posture by the urging force of the spring 4c. At this time, the piston 3b slides together with the hollow stem 3c toward the top of the cylinder 3a.

  When the piston 3b slides toward the upper part of the cylinder 3a, the inside of the cylinder 3a becomes negative pressure. Therefore, the valve body 3e is opened, and the contents in the container are sucked into the cylinder 3a through the suction port h.

After the pressing head 4 returns to a normal posture (top dead center), when a pressing force is applied again to the top cover 4a, the inside of the cylinder 3a is pressurized, and the contents present therein are stored in the hollow stem 3c. It goes to the opening 4a ₁ of the top cover 4a through the opening 3c ₁ and its internal passage 3c _2, and the valve portion 4a ₂₂ of the valve body 4a ₂ is elastically deformed by the pressure at that time, and the opening 4a ₁ To release the contents. By repeating such operations, that is, by repeatedly pressing and returning the top cover 4a of the pressing head 4, the contents can be continuously discharged. It rises toward the upper end opening 1a.

  In the container with a pump according to the present invention, all the contents filled in the filling space M are discharged, and even after the middle tray 5 moves to the top, as shown in FIG. Does not come into contact with the casing 3f of the pump 3, and even if the pump 3 is removed, it is avoided that the inner plate 5 adheres and comes out with the pump 3 in order to replace the container. As a result, dripping occurs. And the surroundings are not soiled by dropping off the inner plate. FIG. 3 shows how the conventional container pump is removed.

  The container with a pump can be basically composed of a synthetic resin except for the spring 4c.

  FIG. 4 is a view showing another embodiment of a container with a pump according to the present invention. 8 in the figure is integrally connected to the suction port h of the pump 3, passes through the opening 6 d of the inner lid 6, and extends toward the filling space M of the contents, 9 is provided in the middle dish 5, This is a recess that enables contact with the inner lid 6 when the short cylindrical body 8 is inserted and the inner tray 5 moves to the uppermost end.

  When the container is replaced, the filling amount of the contents is small and the air layer A may be formed. In such a situation, only the air is sucked even if the contents are exhausted, and the pump 3 is malfunctioning. However, in the case where the short cylindrical body 9 is provided, the suction port h and the content of the pump 3 are required. Since the object is directly connected, it is possible to eliminate the malfunction due to the suction of air, and the contents can be reliably discharged with less priming.

  Reference numeral 10 in FIG. 4 denotes an annular body (guide ring) shown in an example in which the upper end portion of the cylindrical body 1c constituting the container body 1 is engaged and fixed by undercut (may be engaged by screws). The annular body 10 functions as a guide that suppresses the tilting of the pressing head 4 and allows the contents to be discharged even when a biased force is applied when the pressing head 4 is pushed in.

  As the annular body 10, a top plate 10 a extending along the upper end surface of the cylindrical body 1 c and two concentric loops that hang down at the outer edge and the inner edge of the top plate 10 a and open downward between them. It consists of heavy wall portions 10b and 10c.

  The wall portion 10c located inside the annular body 10 is positioned with a slight gap on the peripheral wall 4f regardless of the steady posture of the pressing head 4 (referred to the posture before pushing), or the pushing posture, or By being positioned so as to be slidably contacted, even if a biased force is applied to the pressing head 4, the inclination of itself is suppressed, and it will slide along the wall surface of the wall portion 10a. The contents can be reliably discharged.

In the pump with the container as constituted above, the lower end of the peripheral wall 4f of the press head 4, it can be preferably provided a projection 4f ₂ that links to the lower end of the wall portion 10c with a steady position, biased to the press head 4 and even when a force is added, since the protrusion 4f ₂ is brought into contact with the lower end of the wall portion 10c, that is pressing pressure head 4 tilts suppressed.

In order to more effectively exhibit the guide function of the wall portion 10c, that a longer least one dimension of length L ₁ of the length L and the wall portion 10c of the peripheral wall 4f of the press head 4 is advantageous.

  The wall portion 10b located outside the annular body 10 can function as a cover that covers the upper portion of the container body 1, and reliably intrudes water and foreign matter from the mating surfaces of the pump 3 and the inner lid 6. Can be prevented.

In the illustrated example, an elastic hanging piece 10d having a claw portion at the lower end is provided in a downwardly open groove formed between the wall portions 10b and 10c, and this elastic hanging piece 10d is connected to the cylindrical body of the casing 3f. Although the case where the upper end of 3f ₃ is fixed by undercut engagement is shown, the fixing method of the annular body 10 is not particularly limited, and both may be connected by screw engagement.

In order to remove the pump 3 from the container main body 1 by gripping and rotating the annular body 10, there is no illustration between the inner wall portion 10 c of the annular body 10 and the cylindrical body ₃ f _3. However, it is assumed that a rotation stopping means including a groove portion and a rib fitted into the groove portion is provided.

  FIG. 5 is a view showing still another embodiment of a pump-equipped container according to the present invention (showing a state in which the pressing head 4 is pushed in the left half with respect to the center line, and the pressing head 4 in the right half) The state before pushing in is shown.).

This example, engaging the annular body 10, constituted only by the wall portion 10c (the top plate 10a, the wall portion 10b is omitted.) To, this by engaging (screw by undercutting the cylindrical body 3f ₃ of the casing 3f The upper end of the rising outer peripheral wall 3d ₆ forming the annular groove 3d ₁ in the retaining cover 3d is linked to the annular protrusion 3f ₆ in the upper end opening of the cylindrical body 3f ₁ forming the casing 3f. The guide 4d and the cylindrical body 4e provided on the pressing head 4 are intentionally omitted (however, a protrusion 4g that contacts the upper outer end of the pulling 4c and positions the spring 4c is provided). Of the structure.

In the container with a pump having the above-described configuration, the annular groove 3d ₂ , the annular recess 3d ₃ , the cylindrical body 3d ₄ , the claw part 3d ₅ , the guide 4d and the cylindrical body 4e of the pressing head 4 are provided. Since the top plate 10a and the wall portion 10b of the annular body 10 are not required, the amount of molding material used can be reduced, and resources can be used effectively, and the mold structure can be simplified. There is also an advantage that can be realized.

  As shown in the figure, an annular recess 11 is formed for the inner tray 5, and when the inner tray 5 moves to the uppermost end, the annular recess 11 has a short cylindrical body 8 (in this case, the short cylindrical body 8 is A diameter larger than the diameter of the short cylindrical body 8 shown in FIG. 4 is applied.), And this point is not particularly limited.

  It is possible to avoid the attachment of the inner pan to the pump, and it is possible to provide a container with a pump that can reliably discharge the contents with a small amount of priming.

DESCRIPTION OF SYMBOLS 1 Container main body 1a Top opening 1b Bottom plate 1c Cylinder 2 Outside air introduction hole 3 Pump 3a Cylinder 3b Piston 3c Hollow stem 3d Retaining cover 3e Valve body 3f Casing 4 Pressing head 4a Top cover 4b Cylinder 4c Spring 4d Guide 4e Cylinder 4f Perimeter wall 4g Protrusion 5 Middle dish 5a Sliding member 6 Middle lid 6a Bottom wall (partition wall)
6b Annular peripheral wall 6c Flange 6d Opening 7 Cover cap 8 Short cylinder 9 Recess 10 Annular (guide ring)
10a Wall part (inner wall part)
10b Wall (outer wall)
10c Drooping piece 11 Annular recess M Filling space h Suction port n, n ₁ Threaded part P Packing

Claims (3)

A container body having a top end opening and forming a filling space for the contents inside by cooperating with a cylindrical body standing around the edge of the bottom plate, and a pump fixedly held at the top end opening of the container body And a top lid positioned at the top of the pump, the pump is operated by repeatedly pushing and returning the top lid, and the contents in the filling space are transferred to the top by moving the inner pan up and down. A container with a pump including a pressing head for discharging from the opening of the lid,
The pump has a cylinder having a suction port for contents at the bottom, a casing integrally connected to the outer wall of the cylinder, and a screw portion provided on the outer wall of the casing,
The container body has an opening that allows the suction port of the pump to face the filling space, and is provided with an inner lid that is fixedly held in association with the protruding end of the cylindrical body
The inner lid is integrally connected to a partition wall that prevents the inner tray from moving up and down, an annular protrusion that is provided in the partition wall and surrounds the opening of the inner lid, and an edge of the partition wall. It consists of an annular peripheral wall that engages inside,
Provided on the inner wall of the annular peripheral wall is a threaded portion that engages with a threaded portion of the casing and holds the pump fixedly;
The inner lid is non-rotatably connected to the cylinder by a vertical rib and a vertical groove into which the vertical rib is fitted .
The pump is disposed in an annular recess in which the bottom wall of the casing is recessed upward, and the lower surface of the pump is brought into contact with the upper surface of the annular protrusion when the pump is fixedly held on the inner lid. A container with a pump, characterized by having a packing for maintaining the filling space liquid-tight .   Provided to the suction port of the pump is a short cylindrical body that extends through the opening of the inner lid and extends toward the filling space of the contents, and inserts the short cylindrical body into the intermediate dish so that the intermediate dish and the inner lid The container with a pump according to claim 1, further comprising a concave portion that enables contact.   The container with a pump according to claim 1 or 2, wherein a valve body that opens only when the pressing head is pushed is provided in the opening of the pressing head.

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