JP2011031941A - Delay discharge pump - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To slowly and little by little discharge a fixed amount of a content to be discharged by pressing a discharge pump for enabling the use of a discharge pump in applying a fluid content to be applied in a wide range little by little while spending time. <P>SOLUTION: A pump body 1 is assembled with a nozzle head 6 with a spare room 18 for storing a discharged content N. The room 18 is provided with elasticity by a spring 17. The flow channel from the room 18 to a nozzle opening 21 is provided with a flow rate control function. The content discharged from the pump body 1 is constantly, slowly and little by little discharged by the flow rate control function of the flow channel and elasticity by the spring 17 on the room 18. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a discharge pump for fluid contents. More specifically, the present invention should not discharge all of a fixed amount of contents to be discharged at once, but should be discharged by a single pushing operation. The present invention relates to a delayed discharge pump that slowly discharges a fixed amount of contents little by little.

  Conventionally, as disclosed in Patent Document 1, a simple pump for discharging fluid contents used in general households discharges almost all of the contents at once by a single pushing operation. The received contents are received and used by application tools such as palms and sponges.

  This is because the contents used are detergents, shampoos, cosmetics, etc., which are convenient to use by dispensing at once with a single discharge operation, such as massage creams and body creams. In the case of fluid contents that are applied over a wide range in small amounts, the contents are stored in a wide-mouthed container or a tube container, and are taken out every time they are consumed.

  Of course, it is possible to use the discharge pump to discharge the fluid contents that are applied over a wide range in small amounts at a time using a discharge pump. Since the contents discharged to the dish and the like are picked up little by little with the fingertips and used, there is a problem that it is difficult to use the discharged contents.

JP 2008-138652 A

  Therefore, the present invention was devised to solve the above-described problems in the prior art, and is a technique for slowly discharging a discharge operation of a predetermined amount of contents discharged by a pushing operation of a discharge pump little by little. It is an object of the present invention to make it possible to use a fluid content that is applied in a small amount over a wide range by using a discharge pump.

The main configuration of the present invention for solving the above technical problem is:
A pump main body for sucking fluid contents from the container body, and a nozzle head connected to the stem of the pump main body and discharging a predetermined amount of content from the nozzle opening by pushing down the stem;
Providing a preparatory chamber for storing the contents discharged from the stem of the pump body in the nozzle head, and forming a flow path portion that exhibits a flow rate regulating function that delays discharge of the contents from the preparatory chamber to the nozzle opening;
The preliminary chamber is configured to include a discharge piston that slides tightly in a cylindrical chamber cylinder and a spring that applies an elastic force to the discharge piston.
The chamber cylinder has a structure in which a bottom surface is formed with a base plate having a communication port with a stem, and a discharge port that constitutes a part of a flow path portion is opened at a lower position.
It is in.

  The delayed discharge pump assembled in the container body containing the fluid contents is composed of a pump body and a nozzle head, and the pump body pushes the nozzle head into the nozzle head so that a fixed amount of contents can be drawn at once. Discharge.

  The discharged contents are about to be discharged from the nozzle opening through the flow path portion, but the passage degree is restricted by the flow path portion. For this reason, the contents discharged from the nozzle port are slowly discharged little by little, but the remaining contents are pushed in by pushing the discharge piston in the chamber cylinder constituting the spare chamber against the elastic force of the spring. Stored in the room.

  When the discharge pump completes the discharge operation and returns to the standby posture in which the stem is pushed up, the pump body side and the nozzle head side are cut off, but the contents stored in the spare chamber are springs Thus, a desired pushing force is applied, so that the pushing force is slowly discharged from the nozzle port little by little while being restricted in flow rate at the flow path portion.

  In another configuration of the present invention, in addition to the main configuration described above, the flow path portion includes a discharge port and a nozzle port, and a discharge passage that communicates the nozzle port and the discharge port. The flow rate regulating function is exhibited by at least one flow path area of the discharge passage.

  If the flow rate control function of the flow path part is demonstrated by at least one flow path area of the nozzle port, discharge port, and discharge passage, the flow rate control function of the flow path part is accurate with a very simple configuration. Can be set to

  Another configuration of the present invention is a configuration in which, in addition to the main configuration described above, the discharge port is blocked by the downwardly displaced discharge piston.

  In the configuration in which the discharge port is closed by the downwardly-displaced discharge piston, the communication state between the spare chamber and the nozzle port can be blocked while the contents stored in the spare chamber are almost eliminated.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the main configuration of the present invention, the contents discharged at a stroke from the discharge pump are always discharged slowly and in small amounts from the nozzle port.

  Therefore, since the next desired amount of content is discharged while processing such as applying the desired amount of discharged content to a predetermined location, etc., the discharged content is subdivided. The state of use can be made one continuous smooth.

  Since the communication port is opened on the bottom surface of the chamber cylinder in which the discharge piston and the spring are assembled, and the discharge port is opened at the lower position of the chamber cylinder, the storage of the contents in the spare chamber is achieved smoothly, The discharge of the stored contents to the flow path portion by the pushing force of the spring can be smoothly achieved, whereby the discharge operation of the contents can be obtained slowly and smoothly little by little.

  If the flow rate control function of the flow path part is demonstrated by at least one flow path area of the nozzle port, discharge port, and discharge passage, the flow rate control function of the flow path part is accurate with a very simple configuration. Therefore, it is possible to easily obtain the flow rate regulation suitable for the viscosity of the contents and the use conditions.

  In the configuration in which the discharge port is closed by the downwardly displaced discharge piston, the communication state between the spare chamber and the nozzle port can be shut off in a state where the contents stored in the spare chamber are almost eliminated. With the discharged fixed amount of content being used up, the gap between the nozzle opening and the spare chamber can be shut off, thereby preventing unwanted leakage of the residual content in the spare chamber.

It is a partial longitudinal cross-sectional view before discharge operation which shows one embodiment of this invention. It is a principal part expanded sectional view at the time of completion of discharge operation of the embodiment example of FIG. It is a principal part expanded sectional view just before completion of discharge operation | movement of the example of embodiment of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The delayed discharge pump (see FIG. 1) according to the present invention is composed of a pump body 1 and a nozzle head 6, and the pump body 1 is assembled closely to a mouth tube portion 24 of a container body 22 containing a content N. A cylinder 3 with a built-in pump function part is assembled to the attached cap 2, and a stem 4 with a discharge-side valve 5, which is a ball valve, projects from the cylinder 3 so as to be pushed down and displaced. ing.

  In the nozzle head 6 (see FIG. 2), a top plate 8 that forms a push-down surface is connected to the upper end of a cylindrical guide tube piece 7 that is fitted to the assembly cap 2 of the pump body 1 so as to be movable up and down. A vertically long nozzle piece 9 having a discharge passage 20 formed therein is erected on the front side portion of 8, and a main body portion in which a nozzle port 21 is opened on the front side surface of the upper end portion of the nozzle piece 9, and the guide cylinder piece 7 The joint member 10 is closely fitted and assembled.

  In this joint member 10, a base plate 11 is connected to a mounting cylinder piece 13 that is tightly fitted to the guide cylinder piece 7, and a connecting cylinder piece 14 that is tightly fitted to the stem 4 is suspended from the lower surface of the base plate 11. At the same time, a base tube 11 is formed on the upper surface of the base plate 11 positioned on the upper side of the connecting cylinder piece 14 so as to stand upright. The base is a boundary portion between the connecting cylinder piece 14 and the chamber cylinder 15. A communication port 12 is formed in the plate 11 portion, and a discharge port 19 is formed in a lower position facing the discharge passage 20 of the chamber tube 15.

  A discharge piston 16 that is in close sliding contact with the cylinder tube 15 is mounted in the chamber cylinder 15, and a spring 17 that biases the piston 16 is mounted between the discharge piston 16 and the top plate 8. The cylinder 15, the discharge piston 16, and the spring 17 constitute a preliminary chamber 18.

  The discharge port 19 of the preliminary chamber 18, the discharge passage 20 formed in the nozzle piece 9, and the nozzle port 21 opened at the tip of the nozzle piece 9 form a flow path portion having a flow rate regulating function. The preliminary chamber 18 obtains an extrusion force by the elastic force of the spring 17.

  The container body 22 containing the contents N is a mouth tube portion into which the assembled cap 2 of the pump body 1 is tightly screwed through a shoulder portion having a reduced diameter at the upper end of a cylindrical tube 23 having a linear cylindrical shape. 24 is erected, and a sliding lid 27 is mounted in the barrel 23 so as to be in close sliding contact so as to be movable up and down.

  The contents N are stored in the upper part of the sliding lid 27, and when the pump main body 1 is assembled to the container body 22, the suction is the lower end opening of the cylinder 3 which is inserted into the container body 22. Since the mouth is immersed in the content N, when the fixed amount of content N is discharged and consumed, the sliding lid 27 is displaced upward according to the amount of the consumed content N. The negative pressure is prevented from being generated in the container body 22, and the suction port of the cylinder 3 is always maintained so as to be immersed in the contents N.

  Note that the lower end opening of the barrel 23 is closed by a bottomed cylindrical bottom lid 25 that is externally fitted to the barrel 23, and the bottom plate of the bottom lid 25 has an upper sliding portion. An intake hole 26 is formed between the lid 27 and the bottom lid 25 to allow outside air to enter.

Next, the discharge operation of the contents N will be described in order.
When the nozzle head 6 is pushed down from the state of FIG. 1, the stem 4 is pushed down to operate the pump body 1, so that a certain amount of the content N sucked into the cylinder 3 pushes up the discharge side valve 5 and opens the communication port 12. To the spare chamber 18.

  The contents N discharged into the preparatory chamber 18 are slowly discharged from the nozzle port 21 little by little through the flow path portion from the discharge port 19 while being restricted in flow rate.

  The remaining contents N are stored in the spare chamber 18 by pushing up the discharge piston 16 in the spare chamber 18 against the elastic force of the spring 17.

  When the discharge operation of the contents N is completed, the pump body 1 is lifted and returned to the stem 4 and the discharge side valve 5 is “closed” to be disconnected from the nozzle head 6 side.

  On the nozzle head 6 side, even if the pump main body 1 side is cut off, the contents N stored in the spare chamber 18 remain in a state in which a pushing force is applied by the spring 17. The contents N inside are slowly and slowly discharged from the nozzle port 21 through the flow passage portion while being restricted in flow rate by the pushing force.

  When the discharge of the content N stored in the preliminary chamber 18 progresses and the content N stored in the preliminary chamber 18 is almost gone, the discharge piston 16 closes the discharge port 19. The communication with the mouth 21 is cut off, and the slow discharge operation of the contents N by small amounts stops.

  In this way, a certain amount of the content N discharged from the pump body 1 at a stretch is slowly discharged little by little by the action of the spare chamber 18 of the nozzle head 6 and the flow path portion. By setting the speed in advance according to the usage state of the content N, a preferable usage form of this type of content N can be easily obtained.

  The flow rate regulating function in the flow path portion is to match at least one of the opening area of the discharge port 19, the passage area of the discharge passage 20, and the opening area of the nozzle port 21 with the elastic force of the spring 17 and the viscosity value of the contents N. Thus, the discharge amount of the content N per unit time can be set accurately, and the amount of the content N discharged by this can be suitably adapted to the usage pattern.

  As described above, the delayed discharge pump of the present invention can set the discharge operation of the content N of the pump body 1 and the operation of discharging the content N to the outside in completely different forms. As a technique for obtaining a discharge operation according to the physical properties of the contents N, a wide range of usage can be expected.

DESCRIPTION OF SYMBOLS 1; Pump main body 2; Assembly cap 3; Cylinder 4; Stem 5; Discharge side valve 6; Nozzle head 7; Guide cylinder piece 8; Top plate 9; Mounting cylinder piece 14; Connection cylinder piece 15; Chamber cylinder 16; Discharge piston 17; Spring 18; Preliminary chamber 19; Discharge port 20; Discharge passage 21; Nozzle port 22; Bottom lid 26; intake hole 27; sliding lid N; contents

Claims (3)

A pump main body for sucking fluid content from the container body, and a nozzle head connected to the stem of the pump main body and discharging a predetermined amount of content from the nozzle opening by pushing down the stem, and discharged from the stem A spare chamber for storing the contents is provided, and a flow path portion that exhibits a flow rate regulating function that delays discharge of the contents from the spare chamber to the nozzle port is formed, and the spare chamber is placed in a cylindrical chamber cylinder. A discharge piston that slides tightly and a spring that applies an elastic force to the discharge piston are arranged, and the chamber cylinder is formed with a base plate that opens a communication port with the stem, and a lower position. A delayed discharge pump with a structure in which a discharge port that constitutes a part of the flow path is opened. The flow path portion is composed of a discharge port, a nozzle port, and a discharge passage that allows the nozzle port and the discharge port to communicate with each other, and the flow rate regulating function is determined by at least one flow channel area of the nozzle port, the discharge port, and the discharge passage. The delayed discharge pump according to claim 1, wherein: The delayed discharge pump according to claim 2, wherein the discharge port is blocked by the downwardly displaced discharge piston.

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