JP2007112478A - Discharge container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharge container which discharges a desired amount of contents when one adjusted discharge operation with a press button is carried out, provides high contents storage efficiency, and is simple and inexpensive. <P>SOLUTION: The discharge container includes: a bottomed cylindrical container body 1 storing the contents N; a piston member 10 which has a shaft tube 14 erected at its center, the shaft tube 14 having a passage 15 bored for allowing the contents N to pass therethrough, and slides along the inner peripheral wall 2 of the container body 1; a press button 25 which is fitted integrally on the top of the piston member 10 and has a delivery opening 26 communicating with the passage 15; and a shoulder cover 40 which is fitted on the mouth 3 of the container body 1 to make the piston member 10 incapable of slipping out of the container body 1. As the piston member 10 is lowered, the contents N are delivered from the delivery opening 26. It is preferable that the piston member 10 is composed of a first slidable cylinder 20 sliding along the inner peripheral wall 2 of the container body 1, and a second slidable cylinder 22 which is slidable along the inner peripheral wall 20a of the first slidable cylinder 20 and is incorporated to be incapable of slipping out, so that the piston member 10 is expanded and contracted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a discharge container in which a fluid substance such as a cream, a hair styling agent, a liquid foundation, or an ointment is stored in a liquid-tight manner, and an appropriate amount is taken out by pressing a push button.

  Conventionally, since it is easy for consumers to use, many types of discharge containers have been proposed in which the piston is operated by depressing a push button having a discharge port, and the fluid content filled in the container is discharged by the pressure of the piston. Has been.

  As such a discharge container with a push button, for example, Japanese Utility Model Laid-Open No. 8-1175 discloses a pump mechanism that is actuated by a push button on the upper part of a container body containing a fluid substance. .

  In this discharge container, when the push button is pushed down, a valve hole communicating with the discharge port of the push button is opened, and a certain amount of contents in the cylinder of the pump mechanism are discharged from the discharge port of the push button by the pressure of the piston. Discharge. When the push button is lifted by the force of the spring by stopping the push button, the valve hole closes and the negative pressure generated as the piston rises causes the filler to be sucked into the cylinder of the pump mechanism, and at the same time the container body The sliding bottom wall also rises by the volume of the discharged contents.

By repeating the above operation, a certain amount of contents are discharged for each stroke.
Japanese Utility Model Publication No. 8-1175

  This discharge container is a very easy-to-use discharge container because the contents can be taken out simply by pressing a push button. However, since it has a pump mechanism and a sliding bottom wall, the mechanism is complicated and the number of assembly steps is large. It has the disadvantage of becoming an expensive container.

  In addition, since the amount of the contents discharged by the operation of the push button for one stroke is regulated by the cylinder capacity of the pump mechanism, the discharge container discharges the contents by an appropriate amount by adjusting the discharge operation. Therefore, in a small container, the discharge amount of one stroke of the push button is small, and in order to obtain a desired discharge amount, the operation of the push button must be repeated many times. There is inconvenience that must not be.

  In addition, since this discharge container is a mechanism that raises the internal stopper when used, it does not know how the internal capacity is used, and the pump mechanism is equipped inside the container body. Since the space inside the body is taken, the efficiency of the storage space for the contents to be filled in the container body is low, and the product has little storage contents for the apparent size of the container, and portability is required like cosmetics. This is disadvantageous for small products.

  The present invention has been made in view of the above-described problems, and allows a desired amount of contents to be discharged by a single discharge operation, and to make a container with high content storage efficiency and simple and inexpensive. Is an issue.

  In order to solve the above problems, the present invention provides a bottomed cylindrical container main body for storing contents, and an axial tube in which a passage through which the contents pass is provided. A piston member that slides on a peripheral wall; a push button that is integrally fitted to the upper portion of the piston member and has a discharge port that communicates with the passage; and an opening of the container body that prevents the piston member from being removed from the container body. And a shoulder cover fitted to the portion, and the contents are discharged from the discharge port as the piston member descends.

  A first sliding cylinder that slides the piston member on the inner peripheral wall of the container main body, and an inner peripheral wall of the first sliding cylinder that is provided with a shaft tube having a passage communicating with the discharge port of the push button at the center. It is preferable that the second sliding cylinder is slidable and can be extended and contracted so that it cannot be pulled out.

  A valve mechanism for automatically opening and closing the discharge port at the base of the discharge port by operating the push button may be provided inside the push button.

  According to the discharge container of the present invention, unlike the conventional discharge container, the pump body that operates by operating the push button and the opening / closing valve of the contents passage are not equipped inside the container body. Accordingly, the accommodation space in the container body is increased, and the efficiency of the accommodation space for the contents filled in the container body can be increased. In addition, this type of container can be provided at low cost because it has a small number of parts and is easy to assemble.

  In addition, the piston member is configured to be extendable and contractible by the first sliding cylinder and the first sliding cylinder slidably incorporated in the inner peripheral wall of the first sliding cylinder, so that the contents to be filled The efficiency of the storage space is further increased, which is extremely advantageous for products that require portability and downsizing, such as cosmetic containers.

  Hereinafter, preferred embodiments of the discharge container of the present invention will be described in detail with reference to the drawings.

FIGS. 1 to 3 show a first embodiment of the discharge container of the present invention. As shown in FIG. 1, the discharge container of this embodiment has a bottomed cylindrical shape for storing the contents N. FIG. A container body 1, a piston member 10 that slides on the inner wall 2 of the container body 1 in order to push out the contents N, and an outlet 26 for the contents N that are integrally fitted to the top of the piston member 10. A push button 25, a shoulder cover 40 that fits into the mouth 3 of the container body 1 so that the piston member 10 cannot be removed from the container body 1, a lid 50 that closes the discharge port 26, and a lid that covers the piston member 10 53.

  The container body 1 is a wide-mouthed jar that liquid-tightly stores fluid contents such as creams, hair styling agents, liquid foundations, and ointments, and a shoulder cover 40 is engaged with the inner peripheral wall of the mouth 3. A peripheral groove 4 for undercut engagement is formed. The container body 1 is molded using a general-purpose synthetic resin such as SAN, PS, PP, ABS, and PET.

  The piston member 10 slidably incorporated in the container main body 1 includes a cylindrical portion 11 provided with a flange-shaped sliding portion 12 that slides on the outer peripheral wall 2 of the container main body 1 on the outer periphery of the lower end portion, and the cylindrical shape. It consists of a face plate part 13 at the lower end of the part 11 and a shaft tube 14 erected at the center of the face plate part 13.

  A projection 11 a for engaging with the push button 25 is formed on the inner peripheral surface of the upper end portion of the cylindrical portion 11, and a piston ring 16 is attached to the sliding portion 12. The shaft tube 14 is formed with a passage 15 for contents N communicating with the discharge port 26 of the push button 25, and the upper end of the shaft tube 14 has a small diameter that fits with the vertical passage 27 of the push button 25. It is part 14a.

  In the push button 25, a nozzle 30 with a lateral passage 29 communicating with the longitudinal passage 27 is provided on the upper portion of the peripheral wall 28, and a discharge port 26 is formed at the tip of the nozzle 30. Further, a flange 31 is formed on the lower end of the peripheral wall 28 so that the push button 25 is fitted to close the upper end of the piston member 10. An annular portion is fitted on the piston member 10 on the lower surface of the flange 31. The annular portion 32 is provided with a circumferential groove 32a that engages with the protrusion 11a of the cylindrical portion 11.

  The shoulder cover 40 is formed in a substantially ring shape in which the diameter of the inner peripheral surface thereof is the same as the diameter of the cylindrical portion 11 of the piston member 10, and is fitted into the mouth portion 3 of the container main body 1 so as to surround the container main body 1. A fitting insertion portion 41 provided with a protrusion 41 a that engages with the groove 4, a flange portion 42 that contacts the mouth end of the container body 1, and a mouth tube portion that is erected on the upper surface of the flange portion 42 and into which the lid 53 is fitted. 43 and prevents the piston member 10 from coming out of the container body 1. Further, as shown in FIG. 3, a circumferential groove 44 for receiving the claw G of the pressing jig when the contents N are filled is formed on the outer peripheral surface of the mouth tube portion 43.

  To assemble the discharge container, as shown in FIG. 2, the piston member 10 fitted with the push button 25 is inserted in advance until reaching the bottom 5 of the container body 1, and the shoulder cover 40 is inserted into the mouth of the container body 1. 3, the piston member 10 is assembled so that it cannot be pulled out.

  When filling the contents N, as shown in FIG. 3, the claw G of the holding jig is put on the circumferential groove 44 of the shoulder cover 40 to hold the container, and the nozzle K of the filling machine and the nozzle 30 of the push button 25 are turned on. In addition, the content N is press-fitted from the discharge port 26 of the push button 25.

  Immediately before the contents N are press-fitted, it is desirable to keep the inside of the container at a non-pressure by the vacuum, and the contents N pass through the passages 29 and 27 of the push button 25 through the passage 15 of the shaft tube 14 by the press-fitting of the contents N. As the piston member 10 is raised, the container body 1 is filled, and further, the discharge port 26 of the push button 25 is filled.

  Therefore, when the push button 25 is pressed, the contents N are immediately discharged, and a desired amount of contents can be discharged by a single discharge operation for lowering the piston member 10.

  In addition, the filling method of the content N is not restricted to said method, The container N may be filled with the content N before assembling a container, and the piston member 10 may be assembled | attached next.

  FIG. 4 and subsequent figures show another embodiment, and the basic form of the container is the same as that of the previous embodiment. Therefore, common portions are denoted by the same reference numerals, and description thereof is omitted.

  4 to 10 show a second embodiment of the discharge container of the present invention, in which a valve mechanism 35 is provided inside the push button 25a, and at the base of the discharge port 26a in accordance with the operation of the push button 25a. Opening and closing the valve mechanism 35 eliminates the need for a palate for closing the discharge port 26a.

  As shown in FIG. 7, the push button 25 a used in the present embodiment includes a valve mechanism 35 and is fitted into the shaft tube 14 of the piston member 10 and communicates with the passage 15 of the shaft tube 14. And a cover body 34 which is fitted on the base 33 so as to be slidable in the vertical direction and is provided with a cam plate 34a acting on the valve mechanism 35 therein. Yes.

  The valve mechanism 35 includes a nozzle 36 in which a discharge port 26a is perforated and a tip portion protruding from a notch groove 34b of the push button 25a, and a nozzle 36 that is disposed inside the nozzle 36 so as to be movable in the front-rear direction. The valve member 37 that opens and closes from the inside of the valve 36, the valve member 37 is urged in the closing direction of the discharge port 26a, and the cover body 34 is mounted through the inclined surface 37a at the rear end of the valve member 37 that the cam plate 34a contacts And a spring 38 held at a position above 33.

  Further, in the present embodiment, since the push button 25a is positioned inside the cylindrical portion 11a of the piston member 10, as shown in FIG. 5, there is a nozzle at the upper end portion of the cylindrical portion 11a. A notch groove 17 from which 36 protrudes is provided, and the top of the assembled push button 25a slightly protrudes from the upper end of the cylindrical portion 11a.

  When the push button 25a is pushed downward and the cover body 34 is pushed down against the force of the spring 38, the cam plate 34a of the cover body 34 slides on the inclined surface 37a of the valve member 37 and descends. By retracting the valve member 37, the discharge port 26a of the nozzle 36 is opened and the valve mechanism 35 is opened. When the cover body 34 is released, the valve member 37 is moved forward by the restoring force of the spring 38, the discharge port 26a is closed, and the cover body 34 is raised to the original position.

  Therefore, when the user presses the cover body 34 of the push button 25a, the discharge port 26a of the nozzle 36 of the valve mechanism 35 opens at the mouth, and when the push button 25a is further pressed, the piston member 10 descends and the container body 1 The content N is compressed, and the content N is discharged from the passage 15 of the shaft tube 14 through the through hole 33a of the push button 25a and from the discharge port 26a.

  In this container, since the valve mechanism 35 is opened and closed at the mouth of the discharge port 26a, the content N can be prevented from being dried or spoiled by the outside air without opening the nozzle 30. .

  In this embodiment, as shown in FIG. 9, the shoulder cover 40 is the shoulder cover 40 used in the first embodiment, which includes a flange insertion portion 41, a flange portion 42, and a mouth tube portion 43. May be used.

  When filling the contents N, as shown in FIG. 10, before attaching the push button 25a to the shaft tube 14, the nozzle K of the filling machine is aligned with the shaft tube 14 of the piston member 10, so that the shaft tube 14 It is preferable to fill directly from the passage 15.

  11 to 13 show a third embodiment of the discharge container of the present invention, and a piston member 10a used for the container is a first sliding cylinder that slides on the inner peripheral wall 2 of the container body 1. FIG. 20 and a second sliding cylinder 22 incorporated into the first sliding cylinder 20 so as to be slidable on the inner peripheral wall 20a of the first sliding cylinder 20 and so as not to be pulled out. In the center of the second sliding cylinder 22, an axial tube 14 having a passage 15 communicating with the discharge port 26 of the push button 25 is erected.

  A sliding portion 12 fitted with a piston ring 16 is formed at the lower end of the first sliding cylinder 20, and an inward projection 21 for preventing the second sliding cylinder 22 from coming out is formed at the upper end. A piston ring 16 a is also attached to the lower end of the second sliding cylinder 22, and an upward step portion 23 that contacts the inward projection 21 of the first sliding cylinder 20 is formed on the outer peripheral surface.

  In order to assemble this discharge container, as shown in FIG. 12, the second sliding cylinder 22 is inserted from below the first sliding cylinder 20 to assemble the elastic piston member 10a, and then the second sliding cylinder. The push button 25 is fitted to the upper end of the 22, the piston member 10 a fitted with the push button 25 is inserted in advance until reaching the bottom 5 of the container body 1, and the shoulder cover 40 a is removed from the mouth 3 of the container body 1. By fitting, the contracted piston member 10a is assembled so that it cannot be pulled out.

  When filling the discharge container with the contents N, as shown in FIG. 13, the nail G of the pressing jig is put on the upper surface 45 of the shoulder cover 40a to hold the container, and the nozzle K and the push button 25 of the filling machine are pressed. The nozzle 30 is put together, the inside of the container is made non-pressurized by vacuum, and the content N is press-fitted from the discharge port 26 of the push button 25.

  The whole piston member 10a rises to the top dead center of the first sliding cylinder 20 under the pressure of the contents N to be filled, and further press-fits the contents N, so that the second sliding cylinder 22 Ascending to the dead point, the contents N are filled not only from the container body 1 but also from the first sliding cylinder 20 to the discharge port 26 of the push button 25.

  Therefore, the efficiency of the storage space for the contents N to be filled is high, and the container is downsized. Further, when the push button 25 is pressed, the piston member 10a contracts and the content N is immediately discharged, which is easy to use and excellent in portability.

  FIG. 14 shows a discharge container according to a fourth embodiment of the present invention. This container is provided with a valve mechanism that opens and closes at the mouth of the discharge port 26a described above on the expandable / contractible piston member 10a. The push button 35a is fitted and configured.

  Therefore, this container can fill not only the container body 1 but also the first sliding cylinder 20 with the contents N, so that the storage space for the contents N is high and the nozzle 36 is closed. The palate is no longer necessary, improving usability. Moreover, since the piston member 10a is pushed into the container body 1 when it is used up, it can be made small and discarded.

Sectional drawing which shows 1st Embodiment in the discharge container of this invention. Sectional drawing which shows the state before filling the contents of the container of FIG. Sectional drawing which shows the state in the operation | work which is filling the contents of the container of FIG. The front view which shows 2nd Embodiment in the discharge container of this invention in part as a cross section. The perspective view which shows the container of FIG. The perspective view which shows the push button used for the container of FIG. FIG. 7 is an enlarged sectional view showing the push button of FIG. 6. The longitudinal cross-sectional view which shows the state in operation | movement of the push button shown in FIG. Explanatory drawing of the example which uses another shoulder cover. Explanatory drawing of the filling method. Sectional drawing which shows 3rd Embodiment in the discharge container of this invention. Sectional drawing which shows the state before filling the contents of the container of FIG. Sectional drawing which shows the state in the operation | work which is filling the contents of the container of FIG. The front view which shows 4th Embodiment in the discharge container of this invention partially as a cross section.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container body, 2 Inner peripheral wall, 3 Mouth part, 10, 10a Piston member, 14 Axis tube, 15 Passage, 20 1st sliding cylinder, 20a Inner peripheral wall, 22 2nd sliding cylinder, 25, 25a Push button, 26 , 26a Discharge port, 35 Valve mechanism, 40 Shoulder cover, N Contents

Claims (3)

  A bottomed cylindrical container main body for storing the contents, a piston member erected with a shaft pipe having a passage through which the contents pass in the center, and sliding on the inner peripheral wall of the container main body; and the piston A push button having a discharge port that is integrally fitted to an upper portion of the member and communicated with the passage; and a shoulder cover that is fitted to the mouth portion of the container body so that the piston member cannot be removed from the container body. Thus, the discharge container is characterized in that the contents are discharged from the discharge port as the piston member descends.   A first sliding cylinder that slides the piston member on the inner peripheral wall of the container main body, and an inner peripheral wall of the first sliding cylinder that is provided with a shaft tube having a passage communicating with the discharge port of the push button at the center. The discharge container according to claim 1, wherein the discharge container is configured to be extendable and contractible with a second sliding cylinder which is slidable and incorporated so as not to come out. 3. A discharge container according to claim 1, wherein a valve mechanism is provided inside the push button to automatically open and close the discharge port at the base of the discharge port by operating the push button.

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