JP4668671B2 - Discharge container - Google Patents

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, there is a discharge container of a type that operates a piston by depressing a push button having a discharge port and discharges fluid contents filled in a robust container by the pressure of the piston. Many have been proposed.

  As such a discharge container with a push button, for example, Japanese Utility Model Laid-Open No. 8-1175 is provided with a pump mechanism operated by a push button on the upper part of a container main body containing a fluid substance, When pressed down, the valve hole communicating with the discharge port of the push button is opened, and the contents in the cylinder of the pump mechanism are discharged from the discharge port of the push button by the pressure of the piston. It is disclosed that the hole is closed and the filler is sucked into the cylinder of the pump mechanism by the negative pressure generated as the piston rises, and at the same time the sliding bottom wall of the container body rises.

  This discharge container is very easy to use because the contents can be taken out simply by pressing a push button. However, since it has a pump mechanism and sliding bottom wall, the mechanism is complicated and the number of assembly steps is large and expensive. It has the disadvantage of becoming a container. In addition, since the amount of the contents discharged by the operation of one stroke of the push button is regulated by the capacity of the cylinder of the pump mechanism, this discharge container has one stroke of the push button in a small designed container. In order to obtain a desired discharge amount, there is an inconvenience that the push button must be repeatedly pressed.

  As a solution to this problem, there is a discharge container with a push button as disclosed in Japanese Patent No. 3612079. In this discharge container, the container body in which the contents are stored is a double cylinder composed of a bottomed outer cylinder and an inner cylinder fitted into the bottom cylinder, and a piston incorporated in a push button via a spring is provided inside the container body. It is arranged directly in the cylinder, and it is attached to the lower end of the push button by communicating with the discharge port of the push button by pushing the push button and pushing the piston in the inner cylinder against the spring pressure by a desired amount. The valve hole of the outflow pipe is opened, and the content is pushed out from the discharge port of the push button by the downward amount of the piston.

  When assembling the discharge container, the push button in which the piston is assembled and the inner cylinder member are assembled in advance so as to be slidable, and the inner cylinder member is attached to the bottomed outer container filled with a predetermined amount of contents. Insert into the tube member and press to assemble. In this assembling process, the compressed air compressed in the container is discharged from the outlet of the push button to the outside through the valve hole opened by air pressure against the spring pressure of the spring in the air pressure accumulation process. It has become.

This conventional discharge container with a push button has a simple push-out configuration in which the contents in the container body are directly pushed out by a piston without providing a pump mechanism inside the container body. Compared to the above, the number of parts is small and inexpensive, and it is easy to discharge a desired amount of contents by adjusting the push-in amount of the push button. Therefore, the problem described above is solved once.
Japanese Utility Model Publication No. 8-1175 Japanese Patent No. 3612079

  However, the discharge container disclosed in the above-mentioned Japanese Patent No. 3612079 is opened in a state where the air in the container is accumulated in the assembly process after filling the contents. It is also anticipated that it will be caught and passed through the valve hole and ejected from the outlet of the push button. In addition, even if the content that has passed through the valve hole stops in the push button, the content that has passed through the valve hole will be exposed to the outside air in the passage, and there is a risk of drying and decay.

  In addition, since the discharge container after assembly is in a state of being immediately activated in the initial movement in the same manner as the container after the start of use, it is physically distinguished from an object that has been used illegally or excessively activated. It was difficult to perceive.

  The present invention has been made in view of the above problems. In the assembly process after filling the contents, the container can be assembled without worrying about the contents passing through the valve hole. It is to be able to sense whether or not there is.

  In order to solve the above-described problem, the present invention is filled with the operation mechanism including a valve mechanism that is attached to the upper end of the piston member so that it cannot be pulled out, and is opened by pressing the push button. Then, in a discharge container that has a bottomed cylindrical container body to which the operating mechanism is assembled, and discharges contents by pushing down the operating mechanism, the shoulder cover of the container body and the piston member are previously Assembled in a temporary latched state, assembled in such a manner that the operating mechanism cannot be pulled out by fitting the shoulder cover to the neck of the container body in a state where the valve mechanism is opened by pushing down the push button, In use, the shoulder cover and the piston member are released from the temporarily hooked state and operated.

  The temporarily latched state of the shoulder cover and the piston member is made by undercut engagement between the piston ring attached to the sliding portion of the piston member and a protrusion provided on the inner peripheral surface of the shoulder cover. It is preferable that the temporary latching state is released by forcibly lowering the position.

  Further, the temporarily latching state of the shoulder cover and the piston member is made by a horizontal engagement between a protrusion protruding above the sliding portion of the piston member and a horizontal groove formed on the inner peripheral surface of the shoulder cover. The protrusion may be moved over in the unlocking direction to be moved over the protrusion and the temporarily hooked state may be released.

  Further, the temporary latching state of the shoulder cover and the piston member is such that the latching projection protruding above the sliding portion of the piston member is latched on the upper surface of the flange of the shoulder cover provided with a guide groove communicating with the inner peripheral surface. The temporary latching state may be released by horizontally rotating the piston member and aligning the latching protrusion and the guide groove.

  According to the discharge container of the present invention, the shoulder cover of the container main body and the piston member of the operation mechanism are assembled in a temporary latched state in advance, and the valve mechanism of the operation mechanism is opened in the assembly process of the container main body and the operation mechanism. Since the assembly work is performed in a state of being put on, the contents are prevented from being ejected by the sudden exhaust air, and the contents do not adhere to the inside and outside of the container. There is no worry about trouble.

  In addition, since the shoulder cover and the piston member are operated by releasing the temporarily engaged state when used, there is a feeling of resistance during the release operation and it is difficult to return to the temporarily engaged state after the release. Since it is a structure, it is very easy to discriminate between an unused item and an item that has been used illegally or excessively activated.

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

  1 to 4 show a first embodiment of a discharge container according to the present invention. As shown in FIG. 1, the discharge container of this embodiment has a neck 2 to which a shoulder cover 10 is fitted. The container body 1 has a bottomed cylindrical shape, has an operation mechanism 20 that cannot be pulled out from the container body 1 by the shoulder cover 10, and a lid 50 that covers the operation mechanism 20.

  The container body 1 is a jar having a wide-mouthed neck 2 at the upper end of the body 3, and a downward step 2a for undercut engagement with which the shoulder cover 10 engages is formed on the outer periphery of the upper end of the neck 2. The bottom wall 4 is formed as an inwardly spherical inclined surface having a hollow 4a formed at the center thereof. The container body 1 is molded using a general-purpose synthetic resin, and a transparent synthetic resin such as SAN or PS is used when the contents are viewed from the outside.

  The shoulder cover 10 of the container body 1 is formed in a ring shape in which the diameter of the inner peripheral surface 11 thereof is the same as the diameter of the inner wall of the container body 1, and as shown in an enlarged view in FIG. A flange 12 that prevents the piston member 21 from slipping out is formed at the upper end of the neck 16, and an operating mechanism is provided on the inner peripheral surface 11 below the flange 12 by undercut engagement with the piston ring 26. A temporary hooking protrusion 13 for temporarily fixing 20 is provided. Further, an upward step portion 15 is formed on the inner surface of the skirt portion 14 of the shoulder cover 10 so as to be undercut engaged with the neck portion 2 of the container body 1.

  The actuating mechanism 20 includes a piston member 21 that is slidably lowered into the container body 1, and a push button 30 that is attached to the upper end of the piston member 21 through a spring 49 that biases the piston member 21 in a separating direction so that it cannot be pulled out. The valve mechanism 40 is opened when the push button 30 is depressed.

  The piston member 21 includes a bottom plate portion 22 formed on the same spherical inclined surface as the inward spherical inclined surface in the container main body 1, an outer cylinder portion 23 standing on the outer edge of the bottom plate portion 22, and the center of the bottom plate portion 22. And an inner cylinder portion 28 standing upright.

  A vertical rib 24 for restricting the lowering of the push button 30 is provided on the inner peripheral surface of the outer cylinder part 24, and the upper part of the outer cylinder part 24 faces downward to prevent the attached push button 30 from coming off. A step portion 25 is formed, and a sliding portion having a diameter larger than that of the outer cylindrical portion 24 in which a piston ring 26 that slides on the inner peripheral surface of the container main body 1 is fitted on the outer peripheral surface of the lower end portion of the outer cylindrical portion 24. 27 is formed.

  Moreover, the upper end of the inner cylinder part 28 is made the same height as the upper end of the vertical rib 24 of the outer cylinder part, and the discharge pipe 41 of the valve mechanism 40 is slidably inserted into the inner surface of the inner cylinder part 28.

  The piston member 21 is inserted from the inside of the shoulder cover 10 and, as shown in FIG. 2, the piston member 21 is engaged with the piston member 21 by undercut engagement between the piston ring 26 and the temporarily engaging projection 13 of the shoulder cover 10. The shoulder cover 10 is in a temporary latched state. This temporary latching state is released by applying a downward force stronger than the latching strength to the piston member 21.

  The push button 30 is formed with a flange 32 on the outer surface of the lower end of the outer peripheral wall 31 so as to be in contact with the downward stepped portion 25 at the upper end of the outer cylinder portion 24 of the piston member 21. A vertical passage 36 communicating with the horizontal passage 35 of the discharge port 34 is formed in the inner peripheral wall 33 of the button 30.

  Further, the upper end portion of the discharge pipe 41 constituting the valve mechanism 40 slidably inserted into the piston member 21 is inserted into the vertical passage 36 of the push button 30, and the passage 41 a of the discharge pipe 41 is inserted into the push button. It communicates with 30 passages 35, 36.

  The valve mechanism 40 is opened and closed by operating a push button 30 so that a valve hole 43 drilled along a flange portion 42 formed at the lower end of the discharge pipe 41 protrudes and retracts from the inner cylinder portion 28 of the piston member 21. To do. When the push button 30 is pressed against the force of the spring 49 disposed between the push button 30 and the piston member 21 and biased in the separation direction, the discharge pipe 41 is lowered and the valve mechanism 40 is opened. .

  The push allowance of the push button 30 when opening the valve mechanism 40 is regulated by the upper end surface of the vertical rib 24 of the piston member 21 and the upper end surface 28a of the inner cylinder portion 28 with which the push button 30 descends and contacts. The compression force P of the spring 49 applied to the piston member 21 when the push button 30 is pressed and contracts by the pushing amount is weaker than the latching strength I in the temporary latching state of the piston member 21 and the shoulder cover 10. P <I is set.

  In order to assemble this discharge container, as shown in FIG. 3, the operation mechanism 20 in which the shoulder cover 10 and the piston member 21 are assembled in a temporary latched state in advance is used for the container body 1 filled with the contents N to the mouth. The push-button 30 is pushed down to keep the valve mechanism 40 open by the jig G that is placed on the neck 2 and descends, and the shoulder cover 10 is pierced by the shoulder cover 10 and the container body 1. The neck 2 is fitted by undercut engagement.

  By assembling the container with the valve mechanism 40 opened by the jig G, the air in the container is not accumulated, and the air in the container passes through the passage 41 a of the discharge pipe 41 from the valve hole 43. It is smoothly discharged from the discharge port 34 of the push button 30. Therefore, the content N is not caught in the momentum of the exhaust air, and various troubles occurring in the assembly process can be prevented.

  In addition, the operating mechanism 20 is set such that the temporary latching strength between the piston member 21 and the shoulder cover 10 is set stronger than the compression force of the spring 47 applied to the piston member 21, and the shoulder cover 10 is projected by the jig G. Since it is assembled, the provisional latched state of the piston member 21 and the shoulder cover 10 is maintained even after the actuation mechanism 20 is assembled.

  Therefore, when using this container, when the user presses the push button 30, the valve mechanism 40 is opened and the underside between the piston ring 26 of the piston member 21 and the projection 13 for temporarily engaging the shoulder cover 10. Suspended state resistance due to cut engagement. It can be sensed that this is unused by this resistance.

  Then, when a downward force stronger than the latching strength is applied to the piston member 21 by the push button 30, the piston ring 26 gets over the projection 13 for temporary latching, and the temporary latching state is released, so that discharge is possible. It becomes. When the piston member 21 is lowered by use, it is difficult to return to the original temporarily locked state, and the function of detecting unauthorized use is extremely high.

  The filling content N is pushed out from the discharge port 34 through the discharge pipe 41 by the amount of depression of the operating mechanism 20, and finally the piston member 21 is completely immersed in the container body 1 as shown in FIG. Thus, the content N is almost completely discharged.

  FIG. 5 and subsequent figures show another embodiment, and the basic form of the container is the same as that of the previous embodiment. Therefore, common parts are denoted by the same reference numerals and description thereof is omitted.

  In the embodiment shown in FIG. 5, a horizontal groove 17 is formed on the inner peripheral surface of the mouth and neck portion 16 of the shoulder cover 10, and the horizontal groove 17 can be engaged with and disengaged above the sliding portion 27 of the piston member 21. The protrusions 29 to be engaged are projected and the protrusions 29 and the horizontal grooves 17 are horizontally engaged, whereby the shoulder cover 10 and the piston member 21 are temporarily engaged.

  6, the horizontal groove 17 is a concave groove formed by the flange 12 of the shoulder cover 10 and the horizontal wall 18 parallel to the lower surface of the flange 12, and the entrance / exit 18 a of the protrusion 29 to the horizontal groove 17. In this case, a climbing protrusion 17a is formed following the inclined surface 18b of the horizontal wall 18, and the inner surface of the horizontal groove 17 is a stopper wall 17b.

  In this embodiment, the piston member 21 and the shoulder cover 10 are assembled in a temporarily hooked state by inserting the piston member 21 from the inside of the shoulder cover 10 and horizontally rotating the piston member 21 clockwise. By this operation, the projection 29 is guided from the entrance / exit 18a of the horizontal groove 17 to the inclined surface 18b, climbs over the projection 17a, contacts the stopper wall 17b, and becomes engaged.

  In order to assemble this discharge container, as in the previous embodiment, the operating mechanism 20 in which the shoulder cover 10 and the piston member 21 are preliminarily assembled to each other by the above means is attached to the neck 2 of the container body 1. The skirt portion 14 of the shoulder cover 10 and the neck portion 2 of the container body 1 are fitted by undercut engagement while the valve mechanism 40 is kept open by the jig G that is placed and lowered.

  The engagement between the shoulder cover 10 and the container main body 1 is not limited to the undercut engagement. As shown in FIG. 7, a male screw 5 is provided on the neck 2 of the container main body and the skirt 14 of the shoulder cover 10 is provided. A female screw may be provided in the case, and screw fitting may be performed.

  When using the container of this embodiment, the user rotates the piston member 21 horizontally counterclockwise. As a result of this operation, the protrusion 29 gets over the protrusion 17a, reaches the doorway 18a of the horizontal groove 17 and the temporarily hooked state is released, and can be used.

  When the protrusion 29 gets over the overhanging protrusion 17a, the resistance of the overhanging protrusion 17a is received. It can be sensed that this is unused by this sense of resistance, and when the piston member 21 is lowered by use, it is extremely difficult to return to the original temporarily locked state illegally, and it is detected that there has been an illegal start. be able to.

  In the embodiment shown in FIGS. 8 to 9, a hooking protrusion 29 a for hooking on the upper surface of the flange 12 of the shoulder cover 10 is provided above the sliding portion 27 of the piston member 21. A guide groove 12a is formed on the flange 12 so as to communicate with the inner peripheral surface of the shoulder cover 10 and guide the latching protrusion 29a. The protrusion 29a is hooked on the upper surface of the flange 12 of the shoulder cover 10 to thereby provide a shoulder cover. 10 and the piston member 21 are temporarily engaged.

  In this embodiment, the piston member 21 and the shoulder cover 10 are assembled in a temporary latched state by aligning the positions of the latching protrusion 29a and the guide groove 12a and inserting the piston member 21 from the inside of the shoulder cover 10, The member 21 is horizontally rotated clockwise to move the position of the latching protrusion 29a horizontally. By this operation, the latching protrusion 29a is latched on the upper surface of the flange 12.

  When using the container of this embodiment, the user can rotate the piston member 21 horizontally in the counterclockwise direction and align the positions of the latching protrusion 29a and the guide groove 12a to release the temporarily latched state. It becomes. And if the latching protrusion 29a is guided to the guide groove 12a by use and the piston member 21 descend | falls, it will be very difficult to return to the original temporary latching state illegally. Therefore, it is possible to detect that an illegal start has been made by releasing the temporarily latched state.

  FIGS. 10 to 11 show an embodiment of another operating mechanism 20a in the discharge container of the present invention. A valve mechanism 40a is provided inside the push button 30a, and the valve mechanism 20a is opened and closed at the mouth of the discharge port 34a. Is to do.

  The push button 30a in the present embodiment includes a base 37 that includes a valve mechanism 40a, is fitted into the inner cylinder portion 28 of the piston member 21, and has a passage 37a that communicates with the inner cylinder portion 28. 37 and a cover body 38 that is slidably fitted in a vertical direction and has a cam plate 38a that acts on the valve mechanism 40a.

  Further, the valve mechanism 40a is a valve 44 that is movably disposed in a nozzle 44 that is mounted with a tip end with a discharge port 34a drilled from the push button 30a and a nozzle 44 that opens and closes the discharge port 34a of the nozzle 44. The member 45 and a spring 47 that urges the valve member 45 in the closing direction of the discharge port 34 a and holds the cover body 38 at an upper position of the base 37 via the inclined surface 46 at the rear end of the valve member 45. ing.

  As shown in FIG. 11, when the cover body 38 is pushed down against the force of the spring 47, the cam plate 38a of the cover body 38 slides down on the inclined surface 46 of the valve member 45 and moves downward. When the member 45 is retracted, the discharge port 34a of the nozzle 44 is opened and the valve mechanism 40a is opened. When the cover body 38 is released, the valve member 45 is moved by the force of the spring 47 and the discharge port 34a is moved. The cover body 38 is raised to its original position while being closed.

  Therefore, even in the container of this embodiment, the shoulder cover 10 and the operating mechanism 20a are assembled in advance in a temporarily hooked state, and the cover body 38 of the push button 30a is pushed down by a jig to open the valve mechanism 40a. Assembling work can be performed while maintaining the temporary hooking state even after assembling.

  In use, when the user presses the cover body 38 of the push button 30a, the valve mechanism 40a opens at the mouth of the nozzle 44 and further pushes down the push button 30a, and the lower end of the cover body 38 is a piston. The entire operating mechanism 20a is lowered by coming into contact with the upper end surface 24a of the vertical rib 24 of the member 21. The content N compressed by the piston member 21 is discharged from the discharge port 34a through the passage 37a of the push button 30a from the inside of the inner cylinder portion 28.

  In this container, since the valve mechanism 20a is opened and closed at the mouth of the discharge port 43a, the contents are not exposed to the outside air in the passage in the container, and drying and decay by the outside air are prevented. There is no worry.

The longitudinal cross-sectional view which shows embodiment of the discharge container of this invention. The longitudinal cross-sectional view which expands and shows the principal part of the container of FIG. Explanatory drawing which shows the state of the assembly operation of the container of FIG. The longitudinal cross-sectional view which shows the state which completed use of the container of FIG. The fragmentary sectional view which shows the principal part in another embodiment. Explanatory drawing which expands and shows a part of principal part of FIG. The longitudinal cross-sectional view which shows another embodiment. The perspective view which shows another embodiment. The fragmentary sectional view which expands and shows the principal part of the container of FIG. The longitudinal cross-sectional view which shows another embodiment of the discharge container of this invention. The longitudinal cross-sectional view which shows the operation state of the container of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Container body, 2 mouth neck part, 10 shoulder cover, 11 inner peripheral surface, 12a guide groove, 13 protrusion, 17 horizontal groove, 17a getting over protrusion, 20 action mechanism, 22a action mechanism, 21 piston member, 21a latching protrusion, 26 Piston ring, 27 Sliding part, 29 Protrusion, 30, 30a Push button, 40, 40a Valve mechanism, N Contents

Claims (4)

  A push button is attached to the upper end of the piston member so that it cannot be pulled out, and an operating mechanism having a valve mechanism that is opened by pressing the push button, and a bottomed cylindrical shape in which the operating mechanism is assembled after the contents are filled A discharge container that discharges contents by depressing the operating mechanism, and the shoulder cover of the container body and the piston member are assembled in a temporary latched state in advance, and the push button With the valve mechanism opened, the shoulder cover is fitted to the neck of the container body so that the operating mechanism cannot be pulled out, and the shoulder cover and the piston member are temporarily attached during use. A discharge container which is operated by releasing the latched state.   The temporarily latched state of the shoulder cover and the piston member is made by undercut engagement between the piston ring attached to the sliding portion of the piston member and a protrusion provided on the inner peripheral surface of the shoulder cover. The discharge container according to claim 1, wherein the temporarily hooked state is released by forcibly lowering the container.   The temporary latching state of the shoulder cover and the piston member is achieved by the horizontal engagement between the protrusion protruding above the sliding portion of the piston member and the horizontal groove formed on the inner peripheral surface of the shoulder cover, thereby releasing the piston member. The discharge container according to claim 1, wherein the projection is moved over the horizontal groove by rotating horizontally in the locking direction, and the temporarily hooked state is released. The temporary hooking state of the shoulder cover and the piston member is to hook the hooking protrusion protruding above the sliding part of the piston member on the upper surface of the flange of the shoulder cover provided with a guide groove communicating with the inner peripheral surface. 2. The discharge container according to claim 1, wherein the temporary latching state is released by horizontally rotating the piston member to align the positions of the latching protrusion and the guide groove.

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