JP2010222014A - Nozzle for dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nozzle for a dispenser which is equipped with a structure capable of maintaining the appearance well even when the capacity is increased. <P>SOLUTION: The nozzle 100 for the dispenser includes: a cylindrical bottomed container 110 for storing liquid 112 such as liquid cosmetics or the like, a fastening lid 120 for opening/closing a storing space 111 of the container 110; a pressure-dispensing unit 140 for dispensing the liquid; a resiliently restoring cap 150 for surrounding a dispense preparation chamber B for preparing the liquid to be dispensed; a dispense amount limiting cap 130 for limiting the flow rate of the liquid to be dispensed from the dispense preparation chamber B; and an adapter 160 for preventing entrance of the liquid into a space E in the fastening lid 120. The adapter 160 has an outer peripheral flange portion 161 for sealing a container side engagement portion 113 of the container 110 and a lid side engagement portion 128, and a stepped cylindrical portion 164 to be fitted to an outer peripheral surface of a lower cylindrical portion 136 of the discharge amount limiting cap 130. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dispenser nozzle for discharging an appropriate amount of liquid cosmetics and the like, and more particularly to measures for improving a sealing function.

  Conventionally, as disclosed in Patent Document 1, as a dispenser nozzle for containing a liquid cosmetic product and discharging an appropriate amount of liquid material from a spout, a tip nozzle, an elastic body restoring cap, There is known a simple dome portion and a fastening lid.

  In the technique of the above-mentioned Patent Document 1, the elastic body restoring cap eliminates the need for the spring that has been essential for the dispenser nozzle so far, and, instead of a general valve structure, two valves using incision holes are provided. By providing each of the elastic body restoring cap and the dome portion and providing an air check valve using a wedge-shaped projection, the number of parts can be greatly reduced.

Korean Registered Patent No. 10-0847460

However, in the technique of the above-mentioned Patent Document 1, if the capacity of the container is increased without changing the discharge amount of the liquid cosmetic, the following problems occur.
That is, when the diameter of the container is increased, the outer diameter of the fastening lid needs to be increased accordingly. However, since the discharge amount does not change so much, the inner diameter of the fastening lid engaged with the tip nozzle is not so large. Accordingly, the outer diameter of the fastening lid increases from the upper side to the lower side.
However, for resin molding, since there should not be an excessively thick portion, most of the fastening lid must be a double tube. In that case, when the liquid cosmetics wrap around from the container into the gap between the double tubes of the lid, the liquid cosmetics can be seen from the outside, resulting in problems such as detracting from the beauty of the cosmetics.
Patent Document 1 is a nozzle with an air pump, but there is a similar problem with a structure without an air pump.

  An object of the present invention is to provide a dispenser nozzle having a structure capable of maintaining good aesthetics even when the capacity is increased.

The dispenser nozzle of the present invention encloses a storage space for storing a liquid substance, a cylindrical container with a bottom having a container side engagement portion formed at the top and an air communication hole formed at the bottom wall, and a lower portion of the outer peripheral portion A lid-side engaging portion that engages with the container-side engaging portion to open and close the storage space of the container, and a tip ejection port that discharges the liquid material. It is premised on that it includes a pressure discharge section that surrounds the flow path through which the liquid material moves and is slidable in the vertical direction along the fastening lid.
The fastening lid has a guide tube portion that opens upward and guides the movement of the pressure discharge unit, extends from the guide tube portion so as to expand downward, and engages with the container side at a lower portion. A large-diameter cylindrical portion formed with a portion, an extended cylindrical portion extending below the guide cylindrical portion and having an inner diameter smaller than that of the guide cylindrical portion, and a central opening provided at the lower end of the extended cylindrical portion. Holding cylinder part.

Further, the dispenser is provided with the following elastic restoration cap, discharge limit cap, piston, and adapter.
The elastic restoring cap is made of an elastic material, and is connected to a lower portion of the pressure discharge unit so as to surround a discharge preparation chamber communicating with the flow path of the pressure discharge unit, and a second incision hole is formed in the ceiling portion. It has been done.
The discharge amount limiting cap is made of an elastic material, supports a lower portion of the elastic restoring cap, has a first incision hole formed therein, and protrudes upward from the dome-shaped ceiling portion, and an opening of the holding portion of the fastening lid The lower cylinder part which protrudes below is provided, and is hold | maintained in the holding | maintenance cylinder part of the said fastening lid.
The said piston is arrange | positioned in the said container so that the said storage space may be divided into the liquid substance storage part, the space above it, and the lower space, and it can move up and down along the internal peripheral surface of a container.
The adapter includes an outer peripheral flange portion that seals an engagement portion between the container and the fastening lid, and a stepped tubular portion that fits and seals with an outer circumferential surface of a lower tubular portion of the discharge amount limiting cap or the fastening lid. The intermediate cylinder part fitted to the outer peripheral surface of the holding cylinder part.

With the above configuration, the following operational effects can be obtained in the present invention.
When the user presses the pressure discharge portion, the pressure discharge portion slides downward along the inner peripheral surface of the guide tube portion of the fastening lid. At this time, since the elastic restoring cap is pressurized by the pressurizing and discharging unit, the outer diameter is bent into an arc shape. And the pressure of the liquid substance in an elastic restoring cap increases. On the other hand, since the upper space of the liquid material is hermetically sealed in the accommodation space, when the liquid material is pressurized, the air pressure in the space increases, and pressure is applied to the liquid surface of the liquid material. Thereby, the liquid material flows into the discharge amount limiting cap through the outflow pipe. The liquid material that has flowed into the discharge restriction cap enters the discharge preparation chamber of the elastic restoration cap from the first incision hole of the discharge restriction cap by the pressure. When the pressure in the discharge preparation chamber increases, the second incision hole opens, and the second incision hole is discharged to the outside from the distal end jet outlet of the pressurizing discharge section and supplied to the user's desired part.
On the other hand, when the user removes his / her hand from the pressure / discharge unit, the pressure / discharge unit returns to the initial state by the elastic force of the elastic restoring cap. At this time, the pressure in the space above the liquid material in the storage space is lower than the air pressure in accordance with the outflow amount of the liquid material in the container. As a result, the piston moves upward and air flows into the cylinder chamber of the container from the air communication hole.
Accordingly, the amount of liquid material desired by the user can be used according to the number of times the user presses the pressure discharge unit.
Thereby, it is possible to discharge an appropriate amount of liquid material such as cosmetics while reducing the number of parts.

On the other hand, when the liquid material flows into the gap space between the large-diameter cylinder portion and the guide cylinder portion of the fastening lid from the storage space of the container, the state is visible from the outside, and the aesthetic appearance is impaired.
Here, in the nozzle for dispensers of this invention, the engaging part of a container and a fastening lid is sealed by the outer peripheral flange part of the adapter. Also, the stepped cylinder part of the adapter and the lower cylinder part of the discharge restriction cap are fitted, or the intermediate cylinder part of the adapter and the outer peripheral surface of the holding cylinder part of the fastening lid are fitted. The gap space between the large-diameter cylinder part and the guide cylinder part is in a sealed state. Accordingly, the liquid material is prevented from flowing into the space from the storage space of the container, and the aesthetic appearance can be maintained.

  By providing both the stepped cylinder part and the intermediate cylinder part in the adapter, the structure for supporting the discharge amount limiting cap and the elastic restoring cap is strengthened, and a stable sealing function and a liquid material discharging function are secured. It is possible to exert a remarkable effect of.

  The dispenser nozzle of the present invention is preferably applied to a liquid product that supplies a liquid cosmetic product in which aesthetics are particularly important.

  By providing the adapter with a protrusion that fits to the inner periphery of the large-diameter cylindrical portion of the fastening lid, the gap space between the large-diameter cylindrical portion of the fastening lid and the guide cylindrical portion can be sealed more reliably.

  ADVANTAGE OF THE INVENTION According to this invention, the nozzle for dispensers provided with the structure which can maintain a beautiful appearance also when a capacity | capacitance is increased can be provided.

It is a longitudinal cross-sectional view of the nozzle for dispensers which concerns on embodiment. It is a top view of the elastic restoring cap which concerns on embodiment. It is a longitudinal cross-sectional view of the elastic restoration cap which concerns on embodiment. It is a top view of the discharge amount restriction cap concerning an embodiment. It is sectional drawing for demonstrating operation | movement when a user pushes a pressurization discharge part below. It is sectional drawing for demonstrating operation | movement when a user removes a hand from a pressurization discharge part. (A), (b) is the top view and longitudinal cross-sectional view of an adapter.

  FIG. 1 is a longitudinal sectional view of a dispenser nozzle 100 according to an embodiment. FIG. 2 is a plan view of the elastic restoring cap according to the embodiment. FIG. 3 is a longitudinal sectional view of the elastic restoring cap according to the embodiment. FIG. 4 is a plan view of the discharge amount limiting cap according to the embodiment.

Hereinafter, the structure of the dispenser nozzle 100 according to the present embodiment will be described with reference to FIGS.
As shown in the figure, the dispenser nozzle 100 of the present embodiment includes a bottomed cylindrical container 110 that stores a liquid material 112 (cosmetics in the present embodiment), and a piston disposed in the container 110. 115, a lid 120 for opening and closing the accommodation space 111 of the container 110, a pressure discharge unit 140 for discharging the liquid material 112, and an elastic restoring cap surrounding the discharge preparation chamber B for preparing the liquid material 112 to be discharged 150, a discharge amount limiting cap 130 for limiting the flow rate of the liquid material 112 discharged from the discharge preparation chamber B, and an adapter 160 for preventing the liquid material 112 from entering the gap space E in the fastening lid 120. Assembled and configured.

The container 110 surrounds a storage space 111 that stores the liquid material 112, and a male screw 113 that is a container-side engagement portion is formed on the top of the container 110. In the storage space 111, there is a storage portion D for storing the liquid material 112 and a space above the storage portion D. As the liquid material 112 is used, the liquid level of the storage portion D decreases, and the space above the storage portion D Will spread. An air communication hole 114 is formed in the bottom wall.
The piston 115 divides the storage space 111 into a storage portion D and a space above the storage space D and a cylinder chamber F, and can move up and down along the inner peripheral surface of the container 110.

The fastening lid 120 has a guide cylinder part 121 for slidably guiding the pressure discharge part 140 at the upper part. The inner peripheral surface 125 of the guide cylinder 121 is a guide surface on which the pressure discharge unit 140 slides, and the upward movement of the pressure discharge unit 140 is limited near the upper end of the inner peripheral surface 125. A system stop projection 124 is provided. A large-diameter cylindrical portion 122 that branches off from the guide tube portion 121 and extends downward; an extended tube portion 126 that is connected to the guide tube portion 121 and extends downward; and has a smaller diameter than the guide tube portion 121; A holding cylinder part 123 provided at the lower end of the extension cylinder part 126 is provided. A gap space E necessary for resin molding exists between the extended cylinder 126 and the large diameter cylinder 122 of the guide cylinder 121 of the fastening lid 120.
A female screw 128 that is a lid-side engaging portion that engages with the engaging portion 111 of the container 110 is formed below the large-diameter cylindrical portion 122 of the fastening lid 120 so that the container 110 can be opened and closed.
The engagement structure of the container 110 and the fastening lid 120 is not limited to a combination of a male screw and a female screw, and may be, for example, a ring-shaped protrusion and a ring-shaped groove engaged with the ring-shaped protrusion. However, in order to securely seal at the outer peripheral portion of the adapter 160, a screw structure as in the present embodiment is preferable.

The pressure discharge unit 140 has a front end jet outlet 143 that discharges the liquid material 112, and is vertically movable along the inner peripheral surface 125 of the fastening lid 120 so that compressed air necessary for discharging the liquid material 112 can be repeatedly generated. The structure is slidable in the direction. The pressurizing discharge unit 140 has an inner cylinder 142 that surrounds the discharge passage A communicating with the front end jet outlet 143 from the front end portion downward, and an outer wall that surrounds the outer cylinder 142 and a locking projection 147 formed on the outer wall. It has a double pipe structure branched to the outer cylinder 141. And when the pressure discharge part 140 is pushed, the outer cylinder 141 slides along the inner peripheral surface 125 of the guide cylinder part 121 of the fastening lid 120, and the whole pressure discharge part 140 moves below, It has become. When the system stop projection 141 of the outer cylinder 141 hits the system stop projection 124 on the inner surface of the guide cylinder portion 121 of the fastening lid 120, the upward movement of the pressure discharge unit 140 is stopped.
In addition, the lower part of the inner cylinder 142 of the pressure discharge unit 140 is a connecting part 145 that is fitted and connected to the elastic restoring cap 150.

  The elastic restoring cap 150 is made of an elastic material, and surrounds the discharge preparation chamber B whose upper end is closed by the ceiling and whose lower end is opened. The upper end portion of the elastic restoring cap 150 is fitted to the connecting portion 145 of the inner cylinder 142 of the pressure discharge unit 140, whereby the elastic recovery cap 150 is connected to the pressure discharge unit 140. A second incision hole 159 for discharging the liquid material 112 in the discharge preparation chamber B to the discharge path A is formed in the ceiling portion of the discharge preparation chamber B.

In addition, a protruding portion 151 that is in surface contact with the extension tube portion 126 is provided on a part of the outer periphery of the elastic restoring cap 150.
As the elastic material constituting the elastic restoring cap 150, copolymers of various resins and various rubbers are generally used.

The discharge amount limiting cap 130 is held in the holding cylinder portion 123 of the fastening lid 120, and the protruding portion 151 of the elastic restoring cap 150 is placed in a sealed state thereon. The discharge amount limiting cap 130 is made of an elastic material such as silicon rubber. The discharge amount limiting cap 130 has a convex dome-shaped ceiling 131 in which the first incision hole 133 is formed, and the ceiling 131 constitutes the bottom wall of the discharge preparation chamber B. A connecting portion 135 having a width of 0.2 mm is integrally formed between the pair of first incision holes 133 of the ceiling portion 131 so as to prevent the first incision hole 133 from excessively spreading. .
Further, the holding chamber C of the discharge amount restriction cap 130 communicates with the discharge preparation chamber B through the first incision hole 159, and when the liquid material 112 is discharged from the discharge preparation chamber B, the first incision is obtained. By closing the hole 159, the flow rate is limited.
Further, a lower cylinder portion 136 that protrudes downward from the central opening 129 of the holding cylinder portion 123 is provided at the lowermost portion of the discharge amount restriction cap 130.

7A and 7B are a top view and a longitudinal sectional view of the adapter 160. FIG. As shown in the figure, the adapter 160 includes an outer peripheral flange portion 161 that seals each engaging portion between the fastening lid 120 and the container 110, an intermediate tubular portion 162 that seals the holding tubular portion 123 of the fastening lid 120, and a discharge And a stepped cylindrical portion 164 that seals the lower cylindrical portion 136 of the amount limiting cap 130.
The outer peripheral flange portion 161 of the adapter 160 is inserted into the inner diameter portion of the large-diameter cylindrical portion 113 of the fastening lid 120 and is inserted between the fastening lid 120 and the container 110. The protruding portion 169 inside the outer peripheral flange portion 161 of the adapter 160 is fitted to the inner periphery of the large-diameter cylindrical portion 113 of the fastening lid 120 to ensure a sealing function.
The inner wall surface of the intermediate cylinder part 162 is fitted to the outer peripheral surface of the holding cylinder part 123 of the fastening lid 120, thereby sealing the gap space E.
The inner peripheral surface of the stepped cylindrical portion 164 is fitted to the outer peripheral surface of the lower cylindrical portion 136 of the discharge amount limiting cap 130, thereby preventing the liquid material 112 from leaking to the side of the discharge amount limiting cap 130. Blocking.
In addition, an outflow pipe 166 extending downward from the stepped cylinder 164 is provided, and the outflow pipe 166 extends below the liquid level of the storage portion D of the storage space 111.
The material of the container 110, the fastening lid 120, the pressure discharge unit 140, the adapter 160, and the piston 115 may be any resin that is not affected by the liquid material.

-Operation-
Next, the discharge operation of the liquid material 112 of the dispenser nozzle 100 will be described with reference to FIGS. 5 and 6.
FIG. 5 is a cross-sectional view for explaining the operation when the user pushes the pressure discharge unit 140 downward. When the user presses the pressure discharge unit 140, the pressure discharge unit 140 slides downward along the inner peripheral surface 125 of the guide tube portion 121 of the fastening lid 120, as indicated by a two-dot chain line in FIG.
At this time, since the elastic restoring cap 150 is pressurized by the pressure discharge unit 140, the outer diameter bends in an arc shape as shown by a two-dot chain line in FIG. And the pressure of the liquid in the discharge preparation chamber B increases. On the other hand, since the space above the storage part D is hermetically sealed in the storage space 111, when the liquid material 112 is pressurized, the air pressure in this space increases, and the liquid level of the liquid material 112 in the storage part D Pressure. Thereby, the liquid material 112 flows into the holding chamber C of the discharge amount limiting cap 130 through the outflow pipe 166.
The liquid material 112 flowing into the holding chamber C enters the discharge preparation chamber B of the elastic restoring cap 150 through the first incision hole 133 of the discharge amount limiting cap 130 due to the pressure. When the pressure in the discharge preparation chamber B increases, the second incision hole 159 opens, and the second discharge hole 140 is discharged to the outside from the front end jet outlet 143 of the pressurization discharge unit 140 and supplied to the user's desired part.

FIG. 6 is a cross-sectional view for explaining the operation when the user releases his / her hand from the pressure ejection unit 140.
When the user releases his / her hand from the pressure / discharge unit 140, the pressure / discharge unit 140 returns to the initial state by the elastic force of the elastic restoring cap 150. At this time, finally, the first incision hole 133 is opened, the second incision hole 159 is closed, and a predetermined liquid material is stored in the discharge preparation chamber B.
At this time, when the liquid material 112 in the container 110 is supplied to the user, the pressure in the space above the storage portion D of the storage space 111 is lower than the air pressure in accordance with the outflow amount of the liquid material 112. As a result, the piston 115 moves upward and air flows into the cylinder chamber F of the container 110 from the air communication hole 114.

  Therefore, the amount of liquid material 112 desired by the user can be used according to the number of times the user presses the pressure discharge unit 120. Further, as the liquid material 112 is consumed, the piston 115 moves upward in the accommodation space 111.

  As described above, according to the dispenser nozzle 100 according to the present embodiment, it is possible to easily supply the liquid material 112 in an amount desired by the user. Moreover, it is not a complicated structure including a coil spring as in the prior art, and an appropriate amount of the liquid material 112 can be obtained by simply attaching the pressure discharge unit 140, the elastic restoring cap 150 and the discharge amount limiting cap 130 to the container 110 and the fastening lid 120. It can be discharged.

In the above-described embodiment, the adapter 160 is provided with the intermediate tube portion 162 and the stepped tube portion 164, but both of them are not necessarily required. If the adapter 160 has the outer peripheral flange part 161 and the stepped cylinder part 164 or the intermediate cylinder part 162, it is possible to prevent the liquid material 112 from entering the gap space E.
However, as in the above-described embodiment, the discharge amount restriction cap 130 is held and sealed at two places, the holding portion 136 of the fastening lid 120 and the stepped tube portion 164 of the adapter 160. Further, the structure for supporting the elastic restoring cap 150 is strengthened, and a remarkable effect that a stable sealing function and a discharging function of the liquid material 112 are ensured can be exhibited.

Further, the protruding portion 169 of the adapter 162 shown in FIGS. 7A and 7B is not necessarily required. It is possible to seal the gap space E only by the outer peripheral flange portion 161 being interposed in the engaging portion between the fastening lid 120 and the container 110.
However, the engaging portion may be loosened. For example, in the engaging portion formed by the combination of the push screw 113 and the female screw 128 as in the above embodiment, the screw may be loosened. In addition, in the engagement portion formed by the ring-shaped protrusion and the ring-shaped groove that engages with the ring-shaped protrusion, the engagement state may be deteriorated due to manufacturing variations or changes with time.
Even in such a case, the gap space E can be more reliably sealed by providing the protruding portion 169 fitted to the inner periphery of the large-diameter cylindrical portion 122 of the fastening lid 120 as in the above embodiment.

  In the above embodiment, the dispenser nozzle that supplies liquid cosmetics as the liquid 112 has been described. However, the liquid 112 is not limited to cosmetics, but is applied to those used by spraying, such as medicinal and drinking. can do.

  In addition, it will become a dispenser if the large lid fitted to the fastening lid of the said nozzle for dispensers is attached.

  The structure of the embodiment of the present invention disclosed above is merely an example, and the scope of the present invention is not limited to the scope of these descriptions. The scope of the present invention is indicated by the description of the scope of claims, and further includes meanings equivalent to the description of the scope of claims and all modifications within the scope.

  INDUSTRIAL APPLICABILITY The present invention can be used as a dispenser nozzle that discharges and uses a suitable amount of liquid cosmetics, medicines, drinks, and the like.

A Discharge path B Discharge preparation chamber C Holding chamber D Storage part E Gap space F Cylinder room 110 Container 111 Storage space 112 Liquid substance 113 Male thread (engagement part)
114 Air communication hole 115 Piston 120 Fastening lid 121 Guide cylinder part 122 Large diameter cylinder part 123 Holding cylinder part 124 System stop projection 125 Inner peripheral surface 126 Extension cylinder part 127 Air communication hole 128 Female thread (engagement part)
129 Central opening 130 Discharge amount limiting cap 131 Ceiling part 133 First incision hole 135 Connection part 136 Lower cylinder part 140 Pressurization discharge part 141 Outer cylinder 142 Inner cylinder 143 Front end jet outlet 145 Connection part 147 System stop projection 150 Elastic restoration cap 151 Protruding portion 153 Wedge-shaped groove portion 155 Cutting groove 157 Valve body 159 Second cutting hole 160 Adapter 161 Outer flange portion 162 Intermediate tube portion 163 Air communication hole 164 Stepped tube portion 165 Connection tube 166 Outflow tube 169 Protrusion portion

Claims (4)

A cylindrical container with a bottom that surrounds a storage space for storing a liquid substance, a container side engagement portion is formed at the top, and an air communication hole is formed at the bottom wall;
A closure lid that is formed with a lid-side engagement portion that engages with the engagement portion of the container at a lower portion of the outer peripheral portion, and can open and close the storage space of the container;
A pressure discharge section having a tip jet outlet for discharging the liquid material, enclosing a flow path through which the liquid material moves, and being slidable in the vertical direction along the fastening lid;
A nozzle for a dispenser comprising:
The fastening lid has a guide tube portion that opens upward and guides the movement of the pressure discharge unit, extends from the guide tube portion so as to expand downward, and engages with the container side at a lower portion. A large-diameter cylindrical portion formed with a portion, an extended cylindrical portion extending below the guide cylindrical portion and having an inner diameter smaller than that of the guide cylindrical portion, and a central opening provided at the lower end of the extended cylindrical portion. Holding cylinder part,
further,
An elastic restoring cap made of an elastic material and connected to the lower part of the pressure discharge unit so as to surround the discharge preparation chamber communicating with the flow passage of the pressure discharge unit and having a second incision hole formed in the ceiling part ,
A lower cylindrical portion made of an elastic material that supports the lower portion of the elastic restoring cap, has a first incision hole, and protrudes upward from the opening of the holding portion of the fastening lid. A discharge amount limiting cap held in the holding cylinder portion of the fastening lid,
In the container, the piston is disposed so as to partition the storage space into a liquid material storage part and a space above and a lower space, and is movable up and down along the inner peripheral surface of the container,
An outer peripheral flange portion that seals an engagement portion between the container and the fastening lid, and a stepped tubular portion that fits and seals with an outer circumferential surface of a lower tubular portion of the discharge amount limiting cap or a holding tubular portion of the fastening lid An adapter having an intermediate cylindrical portion that fits to the outer peripheral surface of
A dispenser nozzle. In the nozzle for dispensers of Claim 1,
The adapter has both the stepped cylinder part and the intermediate cylinder part. The nozzle for a dispenser according to claim 1 or 2,
The liquid is a liquid cosmetic. In the nozzle for dispensers as described in any one of Claims 1-3,
The adapter further includes a protrusion that fits with the inner peripheral surface of the large-diameter cylindrical portion of the fastening lid.

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