JP2011240312A - Pressure accumulation type pump mechanism, and pump type product equipped with the pump mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with large operational force in a final step of a content discharge operation in a pressure accumulation type pump mechanism, to prevent a content from getting stuck, and to make the discharged content cut sharp.SOLUTION: This pressure accumulation type pump mechanism is provided with an exhaust pressure valve (inner vertical groove-like part 4d, circular bulged part 6a) for releasing pressures of storage space areas A, B with downstream valves 3f, 4a brought into an open state, to a side of an injecting horizontal hole part 2b. in the final step of the content discharge operation. The exhaust pressure valve is brought into an open state to bring the downstream valves into closed states, before an operation part 1 reaches a lower dead point. Then, volumes of the storage space areas A, B are reduced and the pressures are increased, during a period until the operation part 1 reaches the lower dead point integrally with valve action moving members 4, 5, and the content in each storage space area thereby flows out from the horizontal hole part 2b via the exhaust pressure valve of open state. A residual content in the vicinity of the horizontal hole part 2b is sucked in by a backsuction action, when the operation part 1 is restored.

Description

  The present invention relates to a pressure accumulating pump mechanism, and in particular, contents stored in a storage space region between an upstream valve and a downstream valve are changed from a closed state of the downstream valve to an open state based on a discharge operation of an operation unit. It is discharged from the discharge hole to the external space area by the transfer, and also from the discharge hole to the external space by the action of the exhaust valve that shifts from the closed state to the open state at the end stage of the discharge operation. The present invention relates to a pressure accumulating pump mechanism that is discharged to the area.

  The contents to which the present pump mechanism is applied include, for example, various mist-like hair conditioners that use an adhesive polymer and a gel-like high-viscosity liquid as described below, as well as various types as described below.

  In this specification, the discharge hole side of the operation portion is referred to as “front”, and the opposite side is referred to as “rear”. That is, the left side of each figure is “front” and the right side is “rear”.

  The pressure in the storage space of the content set between the upstream valve (suction valve) and the downstream valve (discharge valve) reaches a predetermined value based on the content discharge operation that resists the biasing force of the elastic member. At the time of rising, the downstream valve opens (the upstream valve remains closed), and a pressure-accumulating pump mechanism that discharges the contents stored in the storage space area to the external space area is well known. Is disclosed.

  At the final stage of the content discharge operation, the movement stroke of the operation portion from the stationary mode position is large, and the contracted state of the elastic member for biasing the downstream valve is also strong.

  The downstream valve is held open by increasing the pressure in the storage space by applying an operating force to the operating member that can set the content pressure larger than the return elastic force of the elastic member. .

  Until the operating portion reaches its bottom dead center by this operating force, the contents stored in the storage space area are discharged to the external space area through the open downstream valve.

  When the operating portion reaches its bottom dead center and stops, the pressure in the storage space area no longer increases, and the downstream valve shifts to the closed state by the action of the elastic member for biasing the downstream valve.

  The pump mechanism communicates from the closed downstream valve to the discharge hole when the operation unit returns to its initial state (stationary mode position) based on the elastic biasing force after the content discharge operation is completed. By increasing the volume of the space area and reducing the pressure below the external air pressure, the remaining contents in the content passage area near the discharge hole (the downstream end side of the communication space area) are transferred to the communication space area. It also has a back suction function that is sucked into the back part (the part far from the discharge hole).

Japanese Patent Laid-Open No. 10-34036

  As described above, the conventional pressure accumulating pump mechanism is a positive pressure release valve to the external space area at the end stage of the content discharge operation, that is, the content that operates in a manner independent of the downstream valve in parallel to the downstream valve. There is no goods passing valve.

  Therefore, at the end stage of the content discharge operation, a large operation force is required to set the content pressure higher than the elastic force of the elastic member for biasing the downstream valve that is in a more contracted state, which is convenient. There was a problem of calling.

  Further, the downstream valve is always elastically urged in the closing direction, and the opening state of the downstream valve becomes unstable at the end stage of the content discharge operation in which the urging force becomes large. There is a problem in that the contents of the discharge are clogged in the discharge passage from the downstream valve to the discharge hole, or the discharge contents at the end of the discharge operation are cut off.

  Therefore, in the present invention, the external space area and the storage space area are communicated at the end stage of the content discharge operation, separately from the downstream valve that is elastically biased in the closing direction in the storage space area of the pressure accumulating pump mechanism. An exhaust pressure valve is provided to allow the contents stored in the storage space area at the end stage to flow directly to the discharge hole through the exhaust pressure valve.

As a result, at the end of the content release operation,
(11) Since the operation force larger than the elastic force of the elastic member for biasing the downstream valve that is in a more contracted state is unnecessary, it is not necessary to perform the discharge operation of the pressure accumulating pump mechanism. For convenience,
(12) The contents stored in the storage space are discharged from the discharge valve to the discharge hole with the downstream valve closed and the discharge valve securely and stably opened. Prevent clogging of the discharge passage to the hole for use, and improve the cutting of the discharge contents at the end of the discharge operation.
For the purpose.

The present invention solves the above problems as follows.
(1) A storage space area (for example, an upstream storage described later) between an upstream valve (for example, a ball valve 8 and tapered inner peripheral surface 9c described later) and a downstream valve (for example, a lower inner edge portion 3f and tapered outer peripheral surface 4a described later). The contents accommodated in the space area A and the downstream storage space area B) are discharged by the transition from the closed state to the open state of the downstream valve based on the discharge operation of the operation unit (for example, an operation button 1 described later). Pressure release valve (for example, an inner longitudinal groove-shaped portion to be described later) that is discharged from the portion (for example, a lateral hole portion 2b to be described later) to the external space and that shifts from the closed state to the open state at the end of the discharge operation 4d, a circular bulging portion 6a, an annular convex portion 4d ′, an annular concave portion 6a ′), which is similarly discharged from the discharge hole portion to the external space region.
The upstream valve is
It is set inside a housing (for example, a housing 9 described later) that constitutes the storage space area,
The downstream valve,
A first valve action moving member (for example, an operation side cylindrical member 3 to be described later) that is integrated with the operation portion and moves in a first direction in which the volume of the storage space area is reduced during the discharge operation;
A second valve action moving member that moves in the first direction during the discharge operation by receiving the resultant elastic force in the second direction opposite to the pressure in the storage space and the first direction. (For example, an inner cylindrical member 4, 4 ′ described later, an outer cylindrical member 5),
Is set as the first separating action part between
The exhaust valve is
The second valve action moving member;
A valve action fixing member (for example, a middle rod member 6, 6 ′ described later) provided in the housing;
Set as the second segregation acting part between
The thing of a structure aspect is used.
(2) In (1) above,
The first valve action moving member is:
It consists of an operation side cylindrical part fixed to the operation part,
The second valve action moving member is
The first separation / contact portion is set between the inner cylindrical portion of the operation side tubular portion, and a passage hole for contents (for example, a lateral hole portion 4c described later) is provided upstream of the separation / contact portion. ) Provided with an inner cylindrical portion (for example, an inner cylindrical member 4, 4 ′ described later),
It is set to the outside of the inner cylindrical portion, and from the passage hole portion to the first separation / contact portion between the inner surface portion of the operation-side cylindrical portion and the outer surface portion of the inner cylindrical portion. An outer cylindrical portion (for example, an outer cylindrical member 5 described later) that forms a downstream storage space area (for example, a downstream storage space area B described later), and
The valve action fixing member is
Arranged in the inner cylindrical part,
Between the inner surface portion of the housing and the inner surface portion of the inner cylindrical portion, an upstream storage space region (for example, an upstream described later) from the upstream valve to the passage hole portion and the second separation / contact portion. Side storage space area A) consisting of a middle rod portion (for example, middle rod members 6, 6 ′ described later),
The thing of a structure aspect is used.
(3) In (2) above,
The second separation / contact part is:
A recess (for example, an inner longitudinal groove portion 4d described later) formed in an inner peripheral surface portion of the inner cylindrical portion (for example, an inner cylindrical member 4 described later) above the passage hole. )When,
A pressure reducing valve action portion (for example, a circle described later) formed on the outer peripheral surface of the middle rod portion (for example, a later described middle rod member 6) in close contact with the inner circumferential surface portion below the recessed portion of the inner cylindrical portion. A bulging portion 6a),
At the end of the discharge operation,
The exhaust pressure valve action part of the middle rod part is opposed to the recessed part of the inner cylindrical part, and the close contact state between the exhaust pressure valve action part and the lower inner peripheral surface part is released, Residual contents in the storage space area flow out to the discharge hole through the recess.
A configuration mode is adopted.
(4) In (2) above,
The second separation / contact part is:
A pressure reducing valve action formed in a manner in close contact with the outer peripheral surface portion of the intermediate rod portion on the inner peripheral surface portion above the passage hole portion of the inner cylindrical portion (for example, an inner cylindrical member 4 ′ described later). A part (for example, an annular convex part 4d ′ described later),
A concave portion for a pressure relief passage (for example, a ring concave portion 6a ′ described later) formed in an outer peripheral surface portion of a predetermined portion corresponding to the pressure relief valve action portion of the middle rod portion (for example, a middle rod member 6 ′ described later). ) And
At the end of the discharge operation,
When the exhaust pressure valve action part of the inner cylindrical part is opposed to the recess part of the middle rod part, the close contact state between the exhaust pressure valve action part and the outer peripheral surface part is released, thereby the storage space. Residual content of the area flows out to the discharge hole through the recess,
The thing of a structure aspect is used.

  The present invention is directed to a pressure-accumulating pump mechanism having the above-described configuration and a pump-type product including the pump mechanism.

The present invention solves the above problem solving means at the final stage of the content discharge operation.
(21) Eliminates the need for a large operating force, and makes the discharge operation of the accumulator pump mechanism more convenient,
(22) Prevent the contents from clogging the discharge passage to the discharge hole, and improve the cutting of the discharge contents at the end of the discharge operation.
be able to.

It is explanatory drawing which shows the stationary mode (an upstream valve, a downstream valve, and an exhaust pressure valve: respectively closed) when the operation button of the pressure accumulation type pump mechanism (the 1) is not pressed. It is explanatory drawing which shows the content discharge | release mode (Upstream valve: Closed, Downstream valve: Opened, Exhaust pressure valve: Closed) in the middle of the downward movement by the operation button of the pressure accumulation type pump mechanism of FIG. It is explanatory drawing which shows the exhaust pressure start mode (Upstream valve: Closed, downstream valve: Open, exhaust pressure valve: Open) when the operation button of the pressure accumulation type pump mechanism of FIG. 1 moves down to near the bottom dead center. It is explanatory drawing which shows the exhaust pressure mode (Upstream valve: Closed, Downstream valve: Closed, Exhaust pressure valve: Open) when the operation button of the pressure accumulation type pump mechanism of FIG. 1 further moves down to near the bottom dead center. It is explanatory drawing which shows the exhaust pressure end mode (upstream valve: closed, downstream valve: closed, exhaust pressure valve: open) at the moment when the operation button of the pressure accumulation pump mechanism of FIG. Description of the return mode (upstream valve: open, downstream valve: closed, exhaust pressure valve: closed) on the way from the bottom dead center to the rest mode position when the operation button of the pressure accumulation pump mechanism in FIG. FIG. 1 to FIG. 6 are explanatory views showing a stationary mode (upstream valve, downstream valve, exhaust pressure valve: closed) of an accumulator pump mechanism (part 2) having a different exhaust pressure passage. It is explanatory drawing which shows the exhaust pressure start mode (Upstream valve: Closed, downstream valve: Open, exhaust pressure valve: Open) of the pressure accumulation type pump mechanism of FIG.

  The best mode for carrying out the present invention will be described with reference to FIGS.

  The constituent elements (for example, the opening 1a) with reference numbers with alphabets used in the respective drawings in principle indicate that they are part of the constituent elements (for example, the operation buttons 1) of the numeral portions of the reference numbers.

1 to 8,
1 is a sheath type push-down type operation button for setting the release mode,
1a is a lateral opening formed in the front portion of the operation button,
1b is a columnar hanging part formed at the center of the top surface of the operation button,
1c is an annular hanging part formed in a state of being separated around the cylindrical hanging part,
1d is a horizontal cylindrical portion formed in a manner continuous from the annular hanging portion in the direction of the opening 1a,
1e is a through portion for passing contents formed in the upper end side base of the horizontal cylindrical portion,
2 is a sheath-like nozzle piece attached in a fitted state to the inner peripheral surface of the opening 1a;
2a is a plurality of radial grooves formed on the circular bottom portion,
2b is a horizontal hole portion for discharging contents formed in a mode communicating with the external space from the central common portion of each radial groove portion,
3 is an operation side tubular member that is fitted and fixed to the outer peripheral surface of the columnar hanging portion 1b of the operation button 1 and the inner peripheral surface of the annular hanging portion 1c;
3a is a small-diameter upper cylindrical portion fitted to each of the outer peripheral surface and the inner peripheral surface,
3b is formed in a plurality of inner peripheral surfaces of the upper cylindrical portion, a vertical rib-shaped portion that sets a vertical content passage portion therebetween,
3c is an inner annular step formed on the inner peripheral surface on the lower end side of the upper cylindrical portion,
3d is a portion continuing from the upper cylindrical portion, and a large-diameter lower cylindrical portion that exhibits a sealing action between the upper skirt-shaped portion 5a described later,
3e is an annular top surface portion formed on the upper end side of the lower cylindrical portion,
3f is an inner end of the annular top surface portion, and a lower inner edge portion that exhibits a downstream valve action with a tapered outer peripheral surface 4a described later,
3g is formed by jumping in the circumferential direction of the annular top surface portion, and has a plurality of convex hanging portions that exhibit the effect of reducing the volume of the downstream storage space area B described later,
3h is an outer annular step formed on the outer peripheral surface on the lower end side of the lower cylindrical portion 3d,
3j is a vertical opening for passing the contents defined between the inner ends of the inner annular step 3c and the annular top surface 3e,
Respectively.

Also,
4 is an inner cylindrical member that moves downward in the figure in accordance with an increase in contents pressure in an upstream storage space area A and a downstream storage space area B, which will be described later, as the operation button 1 is pushed down (see FIGS. 6 only),
4 ′ is an inner cylindrical member (used only in FIGS. 7 and 8) in which an annular convex portion 4d ′ described later is formed instead of the inner longitudinal groove 4d of the inner cylindrical member 4;
4a is an annular tapered outer peripheral surface formed on the upper end side of the outer peripheral surface of each of the inner cylindrical members 4 and 4 ', and exhibits a downstream valve action with the lower inner edge portion 3f of the operation side cylindrical member 3.
4b is a plurality of outer longitudinal groove-shaped portions for passing the contents formed on the outer peripheral surface portion extending downward from the lower end portion of the tapered outer peripheral surface;
4c is a horizontal hole portion for passing contents formed in a manner in which the outer longitudinal groove portion communicates with the inner space of each inner tubular member 4, 4 ′.
4d is formed at the upper end portion of the inner peripheral surface of the inner cylindrical member 4 and has a plurality of inner longitudinal groove-like portions (only in FIGS. 1 to 6) that exhibit a pressure reducing valve action with a circular bulging portion 6a described later. use)
4d ′ is formed in an aspect composed of upper and lower tapered surfaces on the inner peripheral surface above the lateral hole portion 4c of the inner cylindrical member 4 ′, and from an annular concave portion 6a ′ of the below-described center rod member 6 ′. An annular convex portion (used only in FIGS. 7 and 8) that exhibits a sealing action between the upper outer peripheral surface portion and an exhaust pressure valve action between the annular concave portion,
4e is a skirt-like portion that is formed on the lower end side of each inner cylindrical member 4, 4 'and that exhibits a sealing action with the lower inner peripheral surface of the housing 9 described later,
4f is an annular stepped portion following the upper end side of the skirt-like portion,
5 is an outer tubular member integrated with each inner tubular member 4, 4 ′,
5a is formed on the upper end side of the outer cylindrical member, and a pair of upper skirt-like portions exhibiting a sealing action with the inner peripheral surface of the lower cylindrical portion 3d of the operation-side cylindrical member 3;
5b is a lower skirt-shaped portion that is formed on the lower end side of the outer cylindrical member, and exhibits a sealing action with the upper inner peripheral surface of the housing 9 described later,
Respectively.

Also,
6 is arranged in a fixed manner in an internal space area from each inner cylindrical member 4, 4 ′ to a housing 9 described later, sets an upstream storage space area A described later, and functions as a pressure relief valve (FIG. 3, FIG. 3). 4)) (used only in FIGS. 1 to 6)
6 ′ is a center rod member (used only in FIGS. 7 and 8) in which an annular concave portion 6a ′ described later is formed instead of the circular bulging portion 6a of the center rod member 6.
6a is formed at the upper end portion of the intermediate rod member 6, and is located above (and inwardly extending) the lateral hole portion 4a of the inner cylindrical member 4 in the stationary mode of FIG. 1, the content discharge mode of FIG. 2, and the return mode of FIG. The pressure reducing valve exhibits a sealing action in close contact with the inner peripheral surface (below the groove-like portion 4d) and faces the inner vertical groove-like portion 4d in the pressure-relief start mode and pressure-relieving mode of FIGS. A circular bulge that acts (used only in FIGS. 1-6),
6a ′ is formed on the upper portion of the middle rod member 6 ′, and in the rest mode of FIG. 7 and the content discharge mode and return mode similar to FIGS. 2 and 6, the ring-shaped convex portion 4d of the inner cylindrical member 4 ′. In the exhaust pressure start mode of FIG. 8 and the exhaust pressure mode similar to FIG. 4, an annular concave portion that exhibits an exhaust pressure valve action facing this annular convex portion (only in FIGS. 7 and 8). use),
6b is a large-diameter base formed on the lower end side of the intermediate rod members 6 and 6 ';
6c is a plurality of notch-shaped portions for passage of contents formed in the large-diameter base,
7 is disposed between the annular step 4f of each of the inner cylindrical members 4 and 4 'and the large-diameter base 6b of the middle rod member 6 and 6', and the inner cylindrical member and the outer cylinder integral therewith. A coil spring for urging the member 5 upward,
8 is a ball valve that exhibits upstream valve action,
9 is an inner cylindrical member 4, 4 ′, outer cylindrical member 5, middle rod member 6, 6 ′, coil spring 7, ball valve 8, etc. are provided in its own internal space region, and the contents to be released next time Housing to contain,
9a is an annular flange on the upper end of the housing,
9b is a lateral hole for taking in outside air,
9 c is a dip tube attached to the bottom cylindrical portion of the housing 9, and the tapered inner peripheral surface 10 that exhibits an upstream valve action with the ball valve 8
11 is the container body containing the contents,
11a is an opening side neck portion having a screw action portion formed on its outer peripheral surface;
12 is an annular seal member which is fitted to the upper end portion of the outer peripheral surface of the housing 9 so as to be in contact with the annular flange portion 9a, and exhibits a sealing action between the annular flange portion and the opening of the container body 11.
13 is a cylindrical screw cap attached to the opening side neck portion 11a of the container main body 11 by being screwed to the opening-side neck portion 11a in a united state with the illustrated constituent members other than the container main body.
13a is an annular top surface portion that is formed at the upper part of the inner peripheral surface of the screw cap and defines the stationary mode position of the operation button 1 by engaging with the outer annular step 3h of the operation side tubular member 3;
13b is an annular convex portion formed on the inner peripheral surface below the annular top surface portion and engaging and holding the lower outer end portion of the annular flange portion 9a of the housing 9.
13c is a screw action portion that is formed on the inner peripheral surface of the lower end side of the screw cap 13 and is screwed with the outer peripheral surface of the opening-side neck portion 11a of the container body 11.
Respectively.

Also,
A is set between the upstream valve (ball valve 8) and the lateral hole portion 4c by the constituent members of the inner cylindrical members 4, 4 ', the intermediate rod members 6, 6' and the housing 9, and the next discharge target Upstream storage space where the contents are stored,
B is between the side hole portion 4c and the downstream valve (the lower inner edge portion 3f and the taper outer peripheral surface 4a) by the constituent members of the operation side cylindrical member 3, the inner cylindrical members 4, 4 'and the outer cylindrical member 5. A downstream storage space area that is set and accommodates the contents to be released next time,
Respectively.

  Here, the operation button 1, nozzle piece 2, operation side tubular member 3, inner tubular member 4, 4 ', outer tubular member 5, middle rod member 6, 6', housing 9, dip tube 10 and screw cap Each 13 is made of plastic made of polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.

  The coil spring 7 is made of metal or plastic, the ball valve 8 is made of metal, plastic or glass, and the container body 11 is made of plastic or glass, and an annular seal member 12 is made of rubber or plastic.

  The difference between the pump mechanism of FIGS. 1 to 6 and that of FIGS. 7 and 8 is only the components of the exhaust pressure valve.

The basic features of the accumulator pump mechanism shown are
(31) As shown in the exhaust pressure start mode of FIG. 3 and FIG. 8, the operation button 1 is operated by the exhaust valve (inner longitudinal groove portion 4d, circular bulge portion 6a and annular convex portion 4d ′, annular concave portion). 6a '), the stored contents in the downstream storage space area B and the upstream storage space area A are the downstream valve (the lower inner edge portion 3f and the tapered outer peripheral surface 4a) and the exhaust pressure valve. Flow to the side hole 2b of the nozzle piece 2 and the pressure of the content is instantaneously reduced,
(32) As shown in the exhaust pressure mode of FIG. 4, the operation button 1 is further pushed down with the pressure of the contents reduced, and the downstream valve is closed, and then until just before reaching the bottom dead center. Meanwhile, the contents of the downstream storage space area B where the volume does not change and the pressure does not increase are not released to the external space area, while the volume of the upstream storage space area A where the volume decreases and the pressure increases The contents are discharged to the external space through the pressure relief valve and the side hole 2b,
(33) As shown in the exhaust pressure end mode (when the operation button reaches the bottom dead center) in FIG. 5, when the operation button 1 is further pushed down and moved to the bottom dead center, the upstream storage space area A no longer exists. The content pressure is not increased as the volume is reduced, so the content is not released to the external space.
That is.

  That is, the operation button 1 is moved from its stationary mode position to the bottom dead center by the action of the pressure reducing valve that allows the downstream storage space area B and the upstream storage space area A to communicate with the external space area only near the bottom dead center of the operation button 1. During the movement until the operation button 1 moves to the bottom dead center, the content discharge state is surely terminated when the operation button 1 moves to the bottom dead center.

Other features are:
(41) By exhibiting a back suction action as will be described later in the return mode of FIG. 6, when the discharge operation is completed and the mode is returned to the stationary mode, the content hangs down from the horizontal hole portion 2b for releasing the content. Can prevent
(42) Since no rubber material is used for the content passage area from the inside of the container body 11 to the side hole 2b, it can be used for various contents.
And so on.

In the stationary mode of FIGS. 1 and 7,
(51) The upstream valve, downstream valve and exhaust pressure valve are closed,
(52) Due to the urging force of the coil spring 7, the moving members such as the operation button 1, the operation side cylindrical member 3, the inner cylindrical member 4, 4 ′, and the outer cylindrical member 5 are set at their uppermost positions,
(53) In the closed space areas of the upstream storage space area A and the downstream storage space area B, the contents that flowed in during the return operation of the operation button to the stationary mode position after the end of the previous content discharge operation ( (See FIG. 6).

  At this time, the lower inner edge portion 3f of the operation side tubular member 3 integrated with the operation button 1 is in close contact with the tapered outer peripheral surface 4a of the inner tubular members 4, 4 ′, that is, the downstream valve is closed.

  Each of the moving members (52) in close contact is held at the uppermost position in a state where the outer annular step portion 3h of the operation side tubular member 3 is engaged with the annular top surface portion 13a of the screw cap 13.

The state transition when the operation button 1 of FIG. 1 is pressed downward to shift to the content discharge mode such as FIG.
(61) First, with the downstream valve closed, the operation button 1, the operation side cylindrical member 3, the inner cylindrical member 4, 4 'and the outer cylindrical member 5 are integrated into the elastic force of the coil spring 7. Downhill while resisting,
(62) As the volume of the upstream storage space area A decreases due to this downward movement, the content pressure of the entire storage space area (upstream storage space area A + downstream storage space area B) increases,
(63) The so-called downward driving force applied to the entire inner cylindrical members 4, 4 'and the outer cylindrical member 5 from the increased pressure content is the elastic force upward of the coil spring 7. The integral of the inner tubular members 4 and 4 ′ and the outer tubular member 5 against the operation-side tubular member 3 (integrated with the operation button 1) while resisting the elastic force. Move down,
(64) The downstream valve is opened by the downward movement of the inner cylindrical members 4, 4 ′ and the outer cylindrical member 5, and the contents of the downstream storage space area B and the upstream storage space area A are “downstream”. Via valve-vertical opening 3j-vertical passage area between vertical rib-shaped parts 3b-through part 1e-annular passage area between horizontal cylindrical part 1d and nozzle piece 2-diameter groove-like part 2a " , And is discharged from the lateral hole portion 2b to the external space area.

  During the push-down operation of the operation button 1, the volume of the upstream storage space area A decreases sequentially, so that the content pressure of the entire storage space area (upstream storage space area A + downstream storage space area B) decreases. Nor. Therefore, the downstream valve is maintained in the open state, and the content discharge mode continues.

  In other words, the inner cylindrical members 4 and 4 ′ that respond to the operation button 1 through the contents of the downstream storage space B are lowered to a position near the bottom dead center of the operation button while the downstream valve is open. By moving, the exhaust pressure valve shifts to an open state (see FIGS. 3 and 8).

  That is, the lower end portion of the inner longitudinal groove-shaped portion 4d of the inner cylindrical member 4 is moved down to a position where the lower end portion of the circular bulging portion 6a of the middle rod member 6 fixed to the housing 9 starts to pass or the inner cylindrical shape. When the upper end portion of the ring convex portion 4d ′ of the member 4 ′ is moved down to a position where the upper end portion of the ring concave portion 6a ′ of the center rod member 6 ′ starts to pass, the pressure relief valve is opened.

  3 and 8, the contents of the upstream storage space area A and the downstream storage space area B are “between the downstream valve and the exhaust valve—the vertical opening 3j—the vertical rib-shaped part 3b. It is discharged from the lateral hole portion 2b to the external space region through the longitudinal passage region-penetrating portion 1e-annular passage region-radial groove portion 2a between the horizontal cylindrical portion 1d and the nozzle piece 2.

  Thus, since the contents flow out from the exhaust pressure valve in addition to the downstream valve, the content pressure in the entire storage space area (upstream storage space area A + downstream storage space area B) is instantaneously reduced.

  As a result, the inner cylindrical members 4 and 4 ′ that are urged upward by the coil spring 7 do not move downward, and are in a state of being substantially stopped with respect to the housing 9.

  On the other hand, since the operation button 1 is still moved down by the pressing operation, the lower inner edge portion 3f of the operation side tubular member 3 integrated therewith abuts against the tapered outer peripheral surface 4a of the inner tubular members 4, 4 ′. . That is, the downstream valve shifts to the closed state. The pressure relief valve remains open.

  The exhaust pressure mode in FIG. 4 and the like shows a content release state when the operation button 1 moves to its bottom dead center with the downstream valve closed and only the exhaust pressure valve opened.

  In this exhaust pressure mode, the operation button 1, the inner cylindrical members 4, 4 ', and the outer cylindrical member 5 are integrated, and move to the bottom dead center of the operation button with the downstream valve closed.

Therefore, as mentioned above,
(71) The content of the downstream storage space area B is not released to the external space area, even when the operation button 1 is moved downward, the volume does not change and the pressure does not increase.
(72) The contents of the upstream storage space area A whose pressure decreases as the operation button 1 moves downward and the pressure increases, are discharged to the external space area through the pressure relief valve and the lateral hole portion 2b. .

  The contents of the upstream storage space area A are released to the external space area only until the operation button 1 reaches its bottom dead center.

  As shown in FIG. 5, once the operation button 1 reaches the bottom dead center, the volume of the upstream storage space A in (72) cannot be reduced and the pressure cannot be increased. The discharge operation to the external space area ends.

  That is, the content discharge operation accompanying the pressing operation of the operation button 1 ends when the operation button reaches its bottom dead center, and even after this operation, the content flows out from the side hole portion 2b. Absent.

  FIG. 6 shows a return mode in which the push-down operation is released and the operation button 1 returns from its bottom dead center to the initial position of the still mode.

In this return mode,
(81) When the downstream valve is closed, the entire movable part such as the operation button 1, the operation side cylindrical member 3, the inner cylindrical member 4, 4 'and the outer cylindrical member 5 in an integrated state is operated by the coil spring 7. To move upward, close the pressure relief valve,
(82) Since the volume of the upstream storage space area A increases as the entire movable portion moves upward with the exhaust valve closed, the entire storage space area (upstream storage space area A + downstream side) The content pressure in the storage space area B) decreases, and the upstream valve (ball valve 8 and taper inner peripheral surface 9c) shifts to the open state,
(83) By opening the upstream valve, the content of the container body 11 flows toward the upstream storage space area A, and is stored in the form of the content to be released next time,
(84) In order to prevent a pressure drop inside the container body due to the inflow of the contents, the outside air passes through the gap between the operation button 1 and the operation side tubular member 3 and the screw cap 13, and the lateral hole portion of the housing 9 9b is supplied into the container body,
(85) Further, with the movement of the entire movable part in (81), the volume of the outside air communication area between the upper surface portion of the middle rod members 6, 6 ′ and the lower surface portion of the columnar hanging portion 1b increases. Since the pressure there is reduced, a back suction action occurs, and this causes “a longitudinal passage region between the longitudinal rib-like portions 3b—a through portion 1e—a circular cylindrical portion 1d and the annular passage region between the nozzle piece 2 The residual contents in the “radial groove portion 2a-lateral hole portion 2b” are sucked toward the outside air communication area.

  As is well known, the pressure acting on the ball valve 8 from the upstream storage space A side and the resultant force of the ball valve's own weight acts on the ball valve 8 from the container body 11 (dip tube 10) side. 6 is dropped, the ball valve 8 in the state of FIG. 6 falls and the upstream valve closes. That is, it returns to the still mode of FIG.

  Pump type products to which the present invention is applied include hair styling agents, hair treatment agents, hair dyes, hair growth agents, cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, cosmetics, shaving foams, foods, Droplets (vitamins, etc.), pharmaceuticals, quasi drugs, paints, horticultural agents, repellents (insecticides), cleaners, deodorants, laundry glue, urethane foam, fire extinguishers, adhesives, lubricants There are various uses such as.

  The contents stored in the container body can be in various forms such as liquid, cream, gel, etc. Examples of ingredients blended in the contents include powdered substances, oil components, alcohols, interfaces Activators, polymer compounds, active ingredients according to each application, water and the like.

  As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

  As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

  Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

  Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, and cations such as alkyltrimethylammonium chloride. A surfactant is used.

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Softeners such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

  Further, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. can be used.

1: Push-down type operation button 1a: Horizontal opening 1b: Cylindrical hanging portion 1c: Annular hanging portion 1d: Horizontal cylindrical portion 1e: Through portion 2 for passing contents: Sheath-shaped nozzle piece 2a: Radial groove portion 2b: Horizontal hole portion 3 for discharging contents: Operation-side tubular member 3a: Small-diameter upper tubular portion 3b: Vertical rib-like portion 3c: Inner annular step 3d: Large-diameter lower tubular shape Part 3e: annular top surface part 3f: lower inner edge part 3g exhibiting downstream valve action: a plurality of convex hanging parts 3h: outer annular step part 3j: vertical opening part 4 for passing the contents: inner cylindrical member (FIG. 1) (Used in Fig. 6)
4 ′: Inner cylindrical member (used in FIGS. 7 and 8)
4a: Tapered outer peripheral surface 4b exhibiting downstream valve action: Plural outer longitudinal groove-like parts 4c: Horizontal hole part 4d for passage of contents: Inner longitudinal groove-like part exhibiting pressure relief valve action (used in FIGS. 1 to 6)
4d ′: An annular convex portion that exhibits a pressure relief valve action (used in FIGS. 7 and 8)
4e: Skirt-shaped portion 4f: Annular step portion 5: Outer cylindrical member 5a: A pair of upper skirt-shaped portions 5b: Lower skirt-shaped portion 6: Middle rod member (used in FIGS. 1 to 6)
6 ′: Middle rod member (used in FIGS. 7 and 8)
6a: a circular bulging portion exhibiting an exhaust pressure valve action (used in FIGS. 1 to 6)
6a ': Annular concave part that acts as a pressure relief valve (used in FIGS. 7 and 8)
6b: large-diameter base 6c: a plurality of notches 7: coil spring 8: ball valve 9 that exhibits upstream valve action 9: housing 9a: annular flange 9b: lateral hole 9c for taking in outside air: taper that exhibits upstream valve action Inner peripheral surface 10: Dip tube 11: Container body 11a: Opening neck portion 12: Annular seal member 13: Cylindrical screw cap 13a: An annular top surface portion 13b: Annular convex portion 13c: Screw acting portion A: Upstream storage space Area B: Downstream storage space area

Claims (5)

The contents stored in the storage space between the upstream valve and the downstream valve are discharged from the discharge hole to the external space by the transition from the closed state to the open state of the downstream valve based on the discharge operation of the operation unit. And at the end stage of the discharge operation, the pressure accumulation type pump mechanism that is discharged from the discharge hole to the external space region by the action of the exhaust pressure valve that shifts from the closed state to the open state until then. ,
The upstream valve is
Set inside the housing constituting the storage space area,
The downstream valve is
A first valve action moving member that is integrated with the operation portion and moves in a first direction in which the volume of the storage space area is reduced during the discharge operation;
A second valve action moving member that moves in the first direction during the discharge operation by receiving the resultant elastic force in the second direction opposite to the pressure in the storage space and the first direction. When,
Is set as the first separating action part between
The exhaust valve is
The second valve action moving member;
A valve action fixing member provided in the housing;
Set as the second segregation acting part between
An accumulator pump mechanism characterized by that. The first valve action moving member is:
It consists of an operation side cylindrical part fixed to the operation part,
The second valve action moving member is
An inner cylindrical portion provided with a hole for passing contents on the upstream side of the separation and contact portion by setting the first separation and contact portion between the operation side tubular portion and the inner surface portion; ,
It is set to the outside of the inner cylindrical portion, and from the passage hole portion to the first separation / contact portion between the inner surface portion of the operation-side cylindrical portion and the outer surface portion of the inner cylindrical portion. An outer cylindrical portion that forms a downstream storage space area,
The valve action fixing member is
Arranged in the inner cylindrical part,
An intermediate rod that forms an upstream storage space area from the upstream valve to the passage hole and the second contact portion between the inner surface portion of the housing and the inner surface portion of the inner cylindrical portion. Consisting of parts,
The pressure-accumulation pump mechanism according to claim 1. The second separation / contact part is:
A recess for the exhaust pressure passage formed in the inner peripheral surface portion of the inner cylindrical portion above the passage hole portion;
A pressure reducing valve acting portion formed in a manner in close contact with the inner peripheral surface portion below the recessed portion of the inner cylindrical portion on the outer peripheral surface of the middle rod portion;
At the end of the discharge operation,
The exhaust pressure valve action part of the middle rod part is opposed to the recessed part of the inner cylindrical part, and the close contact state between the exhaust pressure valve action part and the lower inner peripheral surface part is released, Residual contents in the storage space area flow out to the discharge hole through the recess.
The pressure-accumulation pump mechanism according to claim 2. The second separation / contact part is:
A pressure relief valve action portion formed in a manner in close contact with the outer peripheral surface portion of the middle rod portion, on the inner peripheral surface portion above the passage hole portion of the inner cylindrical portion;
A recess portion for a discharge passage formed in an outer peripheral surface portion of a predetermined portion corresponding to the discharge valve operation portion of the middle rod portion,
At the end of the discharge operation,
When the exhaust pressure valve action part of the inner cylindrical part is opposed to the recess part of the middle rod part, the close contact state between the exhaust pressure valve action part and the outer peripheral surface part is released, thereby the storage space. Residual content of the area flows out to the discharge hole through the recess,
The pressure-accumulation pump mechanism according to claim 2. The pressure-accumulation pump mechanism according to any one of claims 1 to 4 is provided, and the contents are accommodated.
This is a pump-type product.

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