JP5190872B2 - Delay pump mechanism and pump type products - Google Patents

Description

  The present invention relates to a delay pump mechanism used for, for example, two-handed washing with an alcohol liquid, that is, a delay pump mechanism having a function in which the contents of a container are released to the external space with a delay from the end of the user's discharge operation. .

  In a normal pump mechanism, when the user operates the release button, the piston moves to open the discharge valve (downstream valve) in the buffer space area where the contents are stored, and the suction valve (upstream valve) opens. It is in the closed state as before, and the contents of the space area are released to the external space.

  In this way, the contents are released to the external space only when the user presses the operation button with their hands or fingers, for example, so that the contents cannot be used with both hands.

  Considering how to use pump-type products in various situations, for example, there is a need for an easy-to-use delay pump mechanism that can easily and reliably perform two-handed cleaning, and the present invention meets these requirements. It is.

  2. Description of the Related Art Conventionally, there has been proposed a pump mechanism that discharges the contents of a storage space area to an external space when an operation button pressed by a user automatically returns after releasing the pressing operation (see Patent Document 1). .

However, this pump mechanism continuously discharges contents from the time of the pressing operation to the time when the operation button is returned after the pressing operation is released.
Japanese Utility Model Publication No. 2-137958

  As described above, the conventional pump mechanism releases the contents in accordance with the pressing operation of the operation button, and continues the content discharging state even when the operation button is returned after the pressing operation. .

  That is, based on the idea that the user can reliably receive the contents with both hands by delaying the timing from the end of the contents discharge operation to the start of the contents discharge operation. Absent.

  For this reason, there is a problem that it is difficult for the user to sufficiently spray, for example, cleaning alcohol on the hand that is pressing the operation button.

  Therefore, in the present invention, the user's both hands are used by using a delay pump mechanism in which the content discharge valve is opened only when the content discharge operation piston returns to the predetermined position after the user finishes the discharge operation. The purpose is to stabilize and ensure the operation of discharging the contents of the container into the container.

The present invention solves the above problems by using the following delay pump mechanism.
(1) A delay pump mechanism having a function in which the container contents are discharged to the external space after the end of the user's discharge operation,
An operation unit (for example, an operation button 1 described later) for the release operation;
By the discharge operation, the suction valve (for example, the annular receiving portion 5c and suction valve operating portion 6b described later) to the intermediate valve (for example, the intermediate valve operating portion 3a and annular receiving portion 4b described later, or the intermediate valve body 18 and the annular valve) An upstream space region (for example, upstream filling chambers A and A ′, which will be described later) in which the content pressure up to the receiving portion 4b) increases,
As the intermediate valve of the upstream space area opens in response to an increase in the content pressure, the contents of the upstream space area flow into the external space without being discharged into the external space (for example, Downstream filling chambers C and C ′) described below,
Upon completion of the discharge operation, the downstream space area is discharged into the external space area (for example, a discharge valve action part 2c and a reverse skirt part 8d described later, or a discharge valve action part 16d and an annular convex part 20d). Is closed and displaced to a predetermined position while the contents are accommodated, and thereafter, the discharge valve is opened to delay and release the contents to the external space,
The discharge valve is
Between each, it consists of the first and second discharge valve action portion set in the open state or the closed state,
The delay actuating means is
A first moving member (for example, a sheath-like upper piston described later) in which the first discharge valve action portion (for example, a later-described discharge valve action portion 2c or a discharge valve action portion 16d) is formed in conjunction with the operation portion. 2, sheath-like intermediate piston 3 and cylindrical lower piston 4, or cylindrical lower piston 4, annular upper piston 16 and sheath-like intermediate member 17);
A second moving member (for example, an annular upper piston described below) that moves based on the discharge operation and that has a second discharge valve action portion (for example, an inverted skirt portion 8d or an annular convex portion 20d described later) formed thereon. 8, sheath-like upper piston 20);
A regulating member (for example, colorings 7 and 19 to be described later) for setting the predetermined position of the second moving member,
When the first moving member and the second moving member return to the stationary mode position upon completion of the discharge operation,
The first and second discharge valve action portions are:
By further movement of the first moving member after the second moving member is stopped by the contact action with the restricting member and the downstream space area is displaced to the predetermined position,
Transition from the previous closed state to the open state,
The thing of a structure aspect is used.
(2) A delay pump mechanism having a function in which the container contents are discharged to the external space after the end of the user's discharge operation,
An operation unit (for example, an operation button 1 described later) for the release operation;
By the discharge operation, the suction valve (for example, the annular receiving portion 5c and suction valve operating portion 6b described later) to the intermediate valve (for example, the intermediate valve operating portion 3a and annular receiving portion 4b described later, or the intermediate valve body 18 and the annular valve) An upstream space region (for example, upstream filling chambers A and A ′, which will be described later) in which the content pressure up to the receiving portion 4b) increases,
As the intermediate valve of the upstream space area opens in response to an increase in the content pressure, the contents of the upstream space area flow into the external space without being discharged into the external space (for example, Downstream filling chambers C and C ′) described below,
Upon completion of the discharge operation, the downstream space area is discharged into the external space area (for example, a discharge valve action part 2c and a reverse skirt part 8d described later, or a discharge valve action part 16d and an annular convex part 20d). Is closed and displaced to a predetermined position while the contents are accommodated, and thereafter, the discharge valve is opened to delay and release the contents to the external space,
The delay actuating means includes
A first piston (for example, a sheath-like upper piston 2, a sheath-like intermediate piston 3 and a tubular lower piston 4, or a tubular lower piston 4, which will be described later) that forms the upstream space region in conjunction with the operation portion. An annular upper piston 16 and a sheath-like intermediate member 17);
A second piston (for example, an annular lower piston 9 described later) and a third piston (for example, an annular upper piston 8 described later, a sheath) that form the downstream space area together with the first piston on the downstream side of the intermediate valve. Upper piston 20),
A first elastic member (for example, an outer coil spring 10 to be described later) for urging the second piston to a stationary mode position;
The discharge valve formed between the first piston and the third piston;
A regulating member (for example, coloring rings 7 and 19 described later) for setting the predetermined position of the third piston,
By the movement of the first piston based on the release operation of the operation unit,
The intermediate valve is opened, the discharge valve is closed, and the suction valve is closed to allow the contents of the upstream space area to flow into the downstream space area, and the third piston is the first piston. In conjunction with the piston,
With the inflow of contents into the downstream space area with the discharge valve closed, the second piston moves in a form against the first elastic member,
By the return operation of the second piston based on the first elastic member after the operation of releasing the operation unit is completed,
While the discharge valve is closed as before and the contents of the downstream space area are retained, the first and third pistons are interlocked toward the regulating member,
After the third piston is stopped by the action of the regulating member, the discharge valve is opened by further movement of the first piston,
The contents of the downstream space area are released from the discharge valve in the open state to the external space by a biasing force of the first elastic member against the second piston,
The thing of a structure aspect is used.
(3) In (2) above,
The upstream space area is
A space region set between the first piston and a cylinder (for example, a cylinder 5 and an inner cylinder 6 described later),
The downstream space area is
A space region set between the first piston, the second and third pistons outside the first piston, and a cylinder (for example, a cylinder 5 described later),
The thing of a structure aspect is used.
(4) In (2) above,
The delay actuating means includes
A second elastic member (for example, an inner coil spring 11 to be described later) that biases the first piston to the stationary mode position;
The thing of a structure aspect is used.
(5) In (2) above,
The inlet to the upstream space (for example, a small diameter inlet 5d described later)
Increase the content inflow resistance there, and reduce the speed when each of the first and third pistons is linked to the regulating member,
The thing of a structure aspect is used.

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

The present invention thus
(11) The space area for storing contents between the suction valve from the container body side and the discharge valve to the external space is divided into an upstream space area continuing from the suction valve, and a downstream space area following the discharge valve. And at least divided into
(12) At the time of discharge operation of the operation section, the contents of the upstream space area are simply moved to the downstream space area of the discharge valve closed state (does not discharge to the external space),
(13) When the downstream space area is displaced to a predetermined position after the end of the discharge operation, the discharge valve is opened, and the contents of the downstream space area are discharged to the external space for the first time here.
Is.

  For this reason, the user can calmly move the container contents to the both hands without fail even after finishing the discharge operation of the operation unit, and can reliably and reliably transfer the contents of the container to both hands.

  In addition, even when the second elastic member for biasing the first piston, which is a component of the upstream space area, to the stationary mode position is omitted, the downstream space area is displaced to a predetermined position after the discharge operation is completed. Thus, since the discharge valve is set to the open state, the cost for manufacturing the delay pump mechanism can be reduced.

  In addition, the content inflow resistance to the upstream space area is increased to reduce the speed when the first piston, which is a component of the space area, returns to the discharge operation start position after the discharge operation is completed. Thus, a delay pump mechanism with high convenience can be obtained by taking advantage of the delay time from the end of the user's release operation to the start of the release of the contents.

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

  1 to 4 show that in the delayed operation mode (see FIG. 4), the sheath-like upper piston 2 further moves upward relative to the annular upper piston 8 stopped at the upper limit position, so that the discharge valves (2c, 8d) The present invention relates to an open delay pump mechanism.

here,
FIG. 1 shows a stationary mode of the delay type pump mechanism (part 1) of the present invention,
FIG. 2 shows a state where the operation button of FIG. 1 is pushed down to its lowest movement position, that is, a state where the intermediate valve is opened and the contents of the upstream filling chamber A move to the intermediate filling chamber B and the downstream filling chamber C. Indicates the pressing mode of
FIG. 3 shows a state in which the discharge valve (output valve to the external space) is still closed after the pressing operation of the operation button in FIG. 2 is released, that is, the contents are confined in the downstream filling chamber C and the piston is left as it is. Each of the groups shows a return mode in which the group moves upward toward the first stationary mode position,
FIG. 4 shows a state in which the discharge valve is opened in the latter half of the return mode of FIG. 3, that is, a delayed operation mode in which the contents of the downstream filling chamber C are discharged from the discharge valve to the external space.

  The constituent elements (for example, the screw portion 1a) of the following reference numbers with alphabets indicate that they are part of the constituent elements (for example, the operation button 1) of the numerical portions of the reference numbers in principle.

  1 to 4, the main constituent elements without alphabets are the operation button 1, the sheath-like upper piston 2, the sheath-like intermediate piston 3, the cylindrical lower piston 4, the cylinder 5, the inner cylinder 6, the coloring ring 7, An annular upper piston 8, an annular lower piston 9, an outer coil spring 10, an inner coil spring 11, and the like.

1-4,
1 is an operation button that moves up and down based on a pressing operation force of a user or a biasing force (elastic force) of a coil spring,
1a is a screw portion formed on the outer peripheral surface of the cylindrical portion of the operation button,
1b is a discharge passage for the contents leading to the discharge port,

2 is a sheath-like upper piston integrated with the operation button 1 by a fitting function of the upper outer peripheral surface and having a passage area to the external space;
2a is a plurality of concave portions formed in the longitudinal direction of the inner circumferential surface of the large-diameter upper cylindrical portion,
2b is an annular hanging portion constituting the maximum diameter portion of the upper cylindrical portion,
2c is a discharge valve action part consisting of the upper outer peripheral surface of the lower sheath part of the small diameter,

3 is a sheath-like intermediate piston integrated with the sheath-like upper piston 2 by the fitting function of the upper inner peripheral surface and having an intermediate valve function with respect to the inlet 4c of the cylindrical lower piston 4 described later,
3a is a hemispherical intermediate valve action portion provided at the lower end portion of the piston,
3b is a plurality of helical elastic pieces that support the intermediate valve action portion,

4 is a cylindrical lower piston which is integrated with the sheath-like intermediate piston 3 by the fitting function of the upper inner peripheral surface and exhibits a valve action with the piston;
4a is a plurality of holes formed in the upper part of the piston for communicating an intermediate filling chamber B and a downstream filling chamber C, which will be described later,
4b is a funnel-shaped annular receiving portion corresponding to the intermediate valve action portion 3a,
4c is an inlet for contents formed in the annular receiving portion,
4d is a plurality of vertical rib-shaped portions that are formed on the outer bottom surface side of the annular receiving portion and receive an inner coil spring 11 described later;
4e is a seal / guided skirt that is always in close contact with the inner peripheral surface of the inner cylinder 6 to be described later.

5 is a cylinder that accommodates each of the pistons 2, 3, and 4 to provide respective moving spaces;
5a is an annular flange formed on the upper outer peripheral surface of the cylinder,
5b is a hole for preventing pressure reduction, which is formed in the lower part of the annular flange and prevents negative pressure inside the container,
5c is a funnel-shaped annular receiving portion corresponding to a later-described suction valve operating portion 6b,
5d is a small-diameter inlet for the contents formed in the annular receiving portion,
5e is a plurality of vertical rib portions formed on the inner peripheral surface of the upper end side,

6 is an inner cylinder which is disposed on the inner bottom side of the cylinder 5 and has a suction valve function for the small diameter inlet 5d of the cylinder;
6a is a through portion formed in the bottom surface of the inner cylinder,
6b is a hemispherical suction valve action part provided near the penetration part,
6c is a plurality of elastic pieces that support the suction valve operating portion,
6d is an annular bottom portion for receiving an inner coil spring 11 described later,
6e is an annular flange for receiving an outer coil spring 10 described later,

7 is a color ring that fits with the upper outer peripheral surface of the cylinder 5 and acts as a guide portion of the upper piston 2 or an upper movement position restricting portion of the annular upper piston 8 described later.
7a is a screw portion formed in the upper part of the inner peripheral surface of the innermost cylindrical portion (set to a screwed state with the screw portion 1a of the operation button 1 at the time of product shipment or product display),
7b is a lower end surface portion of the innermost cylindrical portion,
7c is a plurality of vertical rib-shaped portions formed on the outer peripheral surface portion of the annular hanging portion (outside the cylindrical portion) so as to correspond to the vertical rib-shaped portions 5e of the cylinder 5;

8 is disposed in an outer space such as the sheath-like upper piston 2 inside the cylinder 5, and seals and discharges the contents of the downstream filling chamber C described later (output valve action to the external space). An annular upper piston presenting
8a is a groove-shaped portion for passing contents formed in the radial direction of the bottom portion,
8b is a seal / guided skirt that is always in close contact with the inner peripheral surface of the cylinder 5,
8c is a seal / guided skirt that is always in close contact with the inner peripheral surface of the annular hanging portion 2b (sheath-like upper piston 2);
8d is a reverse skirt portion (discharge valve action portion) for sealing / valve operation that is in close contact with the outer peripheral surface of the discharge valve action portion 2c (sheath-like upper piston 2) in the push-down mode of FIG. 2 or the return mode of FIG. ,
8e is an outer upper surface having a function of contacting the lower end surface of the annular hanging portion 2b (sheath-like upper piston 2) and interlocking the annular upper piston integrally with the sheath-like upper piston 2 in the push-down mode and the return mode. portion,

9 is disposed in an outer space area such as the cylindrical lower piston 4 inside the cylinder 5 in such a manner that it receives an upward biasing force (elastic force) in the figure, and is applied to the contents of the downstream filling chamber C described later. An annular lower piston that exhibits sealing and pressing action (push-up driving action),
9a is a seal / guided skirt that is always in close contact with the inner peripheral surface of the cylinder 5,
9b is a seal / guided reverse skirt that is always in close contact with the outer peripheral surface below the hole 4a of the cylindrical lower piston 4;
9c is an annular step for receiving an outer coil spring 10 described later,

10 is an outer coil spring that urges the annular lower piston 9 upward in the figure (a direction in contact with the annular upper piston 8).

11 is an inner coil spring that urges the cylindrical lower piston 4 upward in the figure (position direction of the stationary mode in FIG. 1),

12 is a container body in which contents are stored,
12a is the neck of the container body,

13 is an annular seal member sandwiched between the bottom surface of the annular flange 5a of the cylinder 5 and the upper end surface of the neck 12a of the container body 12.

14 is screwed to the outer peripheral surface of the neck 12a of the container body 12, and the annular flange 5a and the annular seal member 13 of the cylinder 5 are fixed to the container body while being sandwiched between the upper end surface of the neck. Cylindrical cover cap to

A is an upstream filling chamber comprising a space in the cylinder from the inlet 5b (suction valve) of the cylinder 5 to the inlet 4c (intermediate valve) of the cylindrical lower piston 4,
B is an intermediate filling chamber comprising a space in the cylinder from the inlet 4c (intermediate valve) of the cylindrical lower piston 4 to the hole 4a,
C is a downstream filling chamber consisting of a space in the cylinder from the hole 4a of the cylindrical lower piston 4 to the discharge valve action portion 2c of the sheath-like upper piston 2 and the reverse skirt portion 8d (discharge valve) of the annular upper piston 8. ,

s1 is a schematic flow of contents from the upstream filling chamber A to the intermediate filling chamber B and the downstream filling chamber C in the push-down mode;
s2 is a schematic flow of the contents from the container body side to the upstream filling chamber A in the return mode,
s3 is a schematic flow of contents from the downstream filling chamber C to the external space in the delayed operation mode;
Respectively.

  The above-mentioned operation button 1, sheath-like upper piston 2, sheath-like intermediate piston 3, cylindrical lower piston 4, cylinder 5, inner cylinder 6, coloring ring 7, annular upper piston 8, annular lower piston 9, container body 12 The cover cap 14 is made of a synthetic resin such as polypropylene, polyethylene, polyacetal, nylon, or polybutylene terephthalate. The outer coil spring 10 and the inner coil spring 11 are made of metal or synthetic resin, and the annular seal member 13 is made of synthetic resin or rubber.

  The spring coefficient of the outer coil spring 10 is, for example, 1800 gf / cm to 2200 gf / cm, and the spring coefficient of the inner coil spring 11 is, for example, 230 gf / cm to 380 gf / cm.

The basic features of the delay pump mechanism of FIGS.
(21) The user pushes down the operation button 1 in the stationary mode shown in FIG. 1 to move down the connecting pistons (sheath-like upper piston 2, sheath-like intermediate piston 3 and cylindrical lower piston 4) integrated therewith. As a result, the intermediate valve action portion 3a is separated from the annular receiving portion 4b, and the contents of the upstream filling chamber A move to the intermediate filling chamber B and the downstream filling chamber C (with the discharge valve closed) (FIG. 2). S1),
(22) As the contents move to the downstream filling chamber C, the annular lower piston 9 is moved down by the pressure of the contents, so that the discharge chamber (with the discharge valve closed) is discharged into the filling chamber C. The contents are stored,
(23) After that, when the user stops the push-down operation of the operation button 1, the downstream filling chamber C keeps its content volume substantially and keeps the discharge valve closed, so that the biasing force of the outer coil spring 10 is applied. Based on this (see Figure 3)
(24) After the outer upper surface portion 8e of the annular upper piston 8 in the middle of the upward movement comes into contact with the lower end surface portion 7b of the innermost cylindrical portion of the collar ring 7 and stops, the operation button 1 and the connecting piston are annular. As a result, the discharge valve opens, that is, as shown in FIG. 4, the reverse skirt portion 8d of the annular upper piston 8 and the outer peripheral surface of the sheath-like upper piston 2 (discharge valve action portion 2c). And the close state until then is released,
(25) By releasing the close state, the contents of the downstream filling chamber C are pushed out of the annular lower piston 9 which continues to move upward by the action of the outer coil spring 10, so that the discharge valve area and the operation in the open state are operated. It flows out to the external space through the discharge passage 1b of the button 1 (s3 in FIG. 4).
That is.

  In this way, the discharge valve is kept closed while the operation button is being pressed or at the bottom dead center position in FIG. 2, and the user stops the operation button pressing operation, that is, the operation button is moved from the operation button to the hand or finger. The discharge valve is opened only after the operation button returns to the predetermined position (position shown in FIG. 4), and the container contents are discharged to the external space.

  Therefore, the user can reliably receive the contents of the container with both hands including the hand that pushed the operation button down.

  FIG. 1 shows a state in which the operation button 1 stops at its top dead center.

  At this time, a series of piston groups (sheath-like upper piston 2, sheath-like intermediate piston 3, cylindrical lower piston 4, annular shape in the upstream filling chamber A, the intermediate filling chamber B, etc. in the previous contents discharge operation. The contents are stored by the return operation of the upper piston 8 and the annular lower piston 9) to the initial positions. Further, the suction valve and the intermediate valve are closed, and the discharge valve is opened.

  However, although the discharge valve is open, as shown in the drawing, the upper lower edge portion of the annular lower piston 9 is in close contact with the upper outer peripheral surface (tapered surface) of the sheath-like intermediate piston 3, Further, since the reverse skirt portion 9b is in close contact with the outer peripheral surface below the hole 4a of the cylindrical lower piston 4, a space area upstream from the close portion (part of the downstream filling chamber C, intermediate filling) The chamber B and the upstream filling chamber A) do not communicate with the external space.

  The annular upper piston 8 and the annular lower piston 9 are stationary at the top dead center by the urging force of the outer coil spring 10. That is, the annular upper piston 8 is in contact with the lower end surface portion 7 b of the collar ring 7, and the annular lower piston 9 is in contact with each peripheral surface portion of the annular upper piston and the sheath-like intermediate piston 3.

  FIG. 2 shows a state where the operation button 1 of FIG. 1 is pushed down to the bottom dead center.

In the process where the operation button 1 in the stationary mode position is pushed down,
(31) First, the lower end portion of the annular hanging portion 2b of the sheath-like upper piston 2 integrated with the operation button is in contact with the outer upper surface portion 8e of the stationary annular upper piston 8, and the discharge valve action. The part 2c is in close contact with the reverse skirt part 8d,
(32) After this contact (close contact), the annular upper piston 8 moves downward integrally with the sheath-like upper piston 2, the sheath-like intermediate piston 3 and the cylindrical lower piston 4,
(33) As the cylindrical lower piston 4 moves, the volume of the upstream charging chamber A decreases and the content pressure increases, so that the intermediate valve action portion 3a of the sheath intermediate piston 3 Displace upward in a form that resists the elastic force of the elastic piece 3b for support,
(34) Due to the displacement of the intermediate valve action portion 3a, the area between the annular lower piston 4 and the annular receiving portion 4b that has been closed is opened,
(35) The contents of the upstream filling chamber A flow into the intermediate filling chamber B and the downstream filling chamber C through the open space and the hole 4a (see s1).
(36) The bottom dead center position of FIG. 2 is such that the annular lower piston 9 that receives the pressure in the downward direction as the contents flow into the downstream filling chamber C resists the biasing force of the outer coil spring 10. Move to,
It will be. At this time, the discharge valves (2c, 8d) are of course kept closed.

  FIG. 3 shows a state in which the series of piston groups and the operation buttons are moved upward with the discharge valve closed after the user stops the pressing operation of the operation button 1 in the push-down mode of FIG.

  When the pressing operation of the operation button 1 is released, first, an outline of a series of piston groups (sheath-like upper piston 2, sheath-like intermediate piston 3, cylindrical lower piston 4, annular upper piston 8, and annular lower piston 9) The operation button 1 moves upward while maintaining the state of the downstream filling chamber C (the size of the space region, the closed state of the discharge valve, etc.) of FIG.

  At this time, in the same manner as the suction valve operation of the normal pump mechanism, the suction valve action portion 6b of the inner cylinder 6 is displaced upward in the form of resisting the elastic force of the supporting elastic piece portion 6c. The space between the annular receiving portion 5c is opened, and the contents of the container flow into the upstream filling chamber A from the small diameter inlet 5d (see s2).

  The piston group moves upward in accordance with the inflow of the contents from the small-diameter inlet 5d to the upstream side filling chamber A.

  Here, the small-diameter inlet 5d increases the inflow resistance of the contents from the container body 12 to the upstream side filling chamber A, and suppresses the moving speed of the piston group.

  Accordingly, from the start of the return mode of FIG. 3 (= the stage where the user releases his / her hand and finger from the operation button 1) to the start of the delayed operation mode of FIG. 4 (= the discharge valve is opened and the downstream filling chamber C is opened) The delay time until the contents start to be released into the external space).

  The main moving drive source of the piston group is an outer coil spring 10 for biasing the annular lower piston 9.

  In other words, the upward biasing force of the outer coil spring 10 is transmitted to the annular upper piston 8 through the contents of the annular lower piston 9 and the downstream filling chamber C, and the piston 8 has its outer upper surface portion 8d. The annular drooping portion 2b of the sheath-like upper piston 2 is placed, so as to move upward in the form of an integral body with the connecting piston.

  The integrated upper movement of this piston group (sheath-like upper piston 2, sheath-like intermediate piston 3, cylindrical lower piston 4, annular upper piston 8 and annular lower piston 9) The process continues until 8d comes into contact with the lower end surface portion 7b of the color ring 7.

  At this time, the movement stroke from the start of the upward movement of the piston group to the contact with the coloring ring 7 is, for example, 20 to 25 mm, and the required movement time is, for example, 4 to 7 seconds.

  FIG. 4 shows a delayed operation mode in the open state of the discharge valve after the outer upper surface portion 8 d of the annular upper piston 8 contacts the lower end surface portion 7 b of the coloring ring 7.

That is, when the outer upper surface portion 8d contacts the lower end surface portion 7b,
(41) The annular upper piston 8 is of course stopped in contact with the lower end surface portion 7b,
(42) The connecting piston of the sheath-like upper piston 2, the sheath-like intermediate piston 3, and the cylindrical lower piston 4 placed on the outer upper surface portion 8 d of the annular upper piston 8 is moved upward by the biasing force of the inner coil spring 11. Go to
(43) As the connecting piston (sheath-like upper piston 2) moves upward, the closed state between the reverse skirt 8d of the annular upper piston 8 and the discharge valve action 2c of the sheath-like upper piston 2 is released. The discharge valve is opened, and the upper surface portion of the sheath-like intermediate piston 3 is brought into contact with the bottom surface portion of the annular upper piston 8,
(44) When the discharge valve is open, the annular lower piston 9 is moved upward by the urging force of the outer coil spring 10, so that the contents of the downstream filling chamber C become “the groove shape of the annular upper piston 8. Part 8a-discharge valve region-recessed portion 2a of the sheath-like upper piston 2-internal space region-discharge passage 1b of the operation button 1 "etc.
It will be.

  Then, the annular lower piston 9 stops at the stage where its upper end edge portion comes into contact with the circumferential surface portions of the annular upper piston 8 and the sheath-like intermediate piston 3, and returns to the stationary mode state of FIG.

  5 to 8 show the annular upper piston 16 against the urging force of the upper coil spring 21 for setting and holding the discharge valves (16d, 20d) in the closed state in the delay operation mode (see FIG. 8). This relates to a delay type pump mechanism in which the discharge valve is opened by further upward movement with respect to the sheath-like upper piston 20 stopped at the upper limit position.

here,
FIG. 5 shows a stationary mode of the delay type pump mechanism (part 2) of the present invention,
FIG. 6 shows a state where the operation button of FIG. 5 is pushed down to its lowest movement position, that is, a state where the intermediate valve is opened and the contents of the upstream filling chamber A move to the intermediate filling chamber B and the downstream filling chamber C. Indicates the pressing mode of
FIG. 7 shows a state in which the discharge valve (output valve to the external space) is still closed after releasing the pressing operation of the operation button in FIG. 6, that is, the contents are confined in the downstream filling chamber C and the piston is left as it is. Each of the groups shows a return mode in which the group moves upward toward the first stationary mode position,
FIG. 8 shows a delayed operation mode in which the discharge valve is opened in the latter half of the return mode of FIG. 7, that is, the contents of the downstream filling chamber C are discharged from the discharge valve to the external space.

  The reference numbers newly used are as follows. Other operation buttons 1, cylindrical upper piston 5, inner cylinder 6, annular lower piston 9, outer coil spring 10, container body 12, annular seal member 13 and The cover cap 14 and the reference numbers with alphabets are the same as those in FIGS.

5 to 8,
15 is a cylindrical upper piston integrated with the operation button 1 by a fitting function of the upper outer peripheral surface and having a passage area to the external space;
15a is an annular hanging portion constituting the maximum diameter portion of the cylindrical upper piston,
A plurality of 15b are formed in the annular hanging portion 15a, and a slit-like portion for guiding a piece 20b described later,

16 is an annular upper piston which is disposed inside the cylinder 5 and has a sealing action on the contents of a downstream filling chamber C ′ which will be described later.
16a is a groove portion for passing contents formed in the radial direction of the bottom portion,
16b is a seal and guided skirt portion 16c that is always in close contact with the inner peripheral surface of the cylinder 5, and a cylindrical portion formed in the center portion.
16d is a discharge valve action part consisting of an inner peripheral part on the lower end side of the cylindrical part 16c,
16e is an upper surface portion with which the lower end of the annular hanging portion 15a contacts,

17 is a sheath-like intermediate member that is integrally engaged with the cylindrical lower piston 4 and the annular upper piston 16 and whose sheath-like bottom surface restricts upward movement of an intermediate valve body 18 to be described later.

18 is a ball-shaped intermediate valve body having a valve action against the inflow port 4c by contacting the annular receiving portion 4b;

Reference numeral 19 denotes a collar ring 19a which is fitted to the upper outer peripheral surface of the cylinder 5 and serves as a guide portion for the cylindrical upper piston 15 and an upper movement position restricting portion for the annular upper piston 16 and a sheath-like upper piston 20 which will be described later. A screw portion formed in the upper portion of the inner peripheral surface of the cylindrical portion (set to a screwed state with the screw portion 1a of the operation button 1 at the time of product shipment or product display),
19b is a lower end surface portion of the innermost cylindrical portion,
19c is a plurality of vertical rib-shaped portions formed on the outer peripheral surface portion of the annular hanging portion (outside the cylindrical portion) so as to correspond to the vertical rib-shaped portions 5e of the cylinder 5;
19d is an annular step formed on the inner peripheral surface of the innermost cylindrical portion,

20 is a sheath-like upper piston that exhibits a discharge valve action (output valve action to the external space) with the annular upper piston 16;
20a is an upper skirt portion that abuts on the inner peripheral surface of the cylindrical upper piston 15 and exhibits a sealing action;
20b is a plurality of pieces for opening the discharge valve action by the tip abutting against the annular step 19d,
20c is a lower skirt portion that abuts on the upper inner peripheral surface of the cylindrical portion 16c and exhibits a sealing action,
20d is an annular convex part having a discharge valve action between the discharge valve action part 16d,
20e is a hole in a sheath-like portion formed between the lower skirt portion 20c and the annular convex portion 20d,

21 is an upper coil spring that urges the annular upper piston 20 upward in the figure with respect to the annular upper piston 16 (the direction in which the annular convex portion abuts on the lower end of the cylindrical portion).

A ′ is an upstream filling chamber composed of a space in the cylinder from the inlet 5b (suction valve) of the cylinder 5 to the inlet 4c (intermediate valve) of the cylindrical lower piston 4;
B ′ is an intermediate filling chamber consisting of a space in the cylinder from the inlet 4c (intermediate valve) of the cylindrical lower piston 4 to the hole 4a,
C ′ is a downstream filling chamber comprising a cylinder inner space region extending from the hole 4 a of the cylindrical lower piston 4 to the discharge valve action portion 16 d of the annular upper piston 16 and the annular convex portion 20 d (discharge valve) of the annular upper piston 20. ,

s4 is a schematic flow of contents from the upstream filling chamber A ′ to the intermediate filling chamber B ′ and the downstream filling chamber C ′ in the push-down mode;
s5 is a schematic flow of the contents from the container body side to the upstream filling chamber A ′ in the return mode,
s6 is a schematic flow of the contents from the downstream filling chamber C ′ to the external space in the delayed operation mode;
Respectively.

  The cylindrical upper piston 15, the annular upper piston 16, the sheath intermediate member 17, the collar ring 19 and the sheath upper piston 20 are made of synthetic resin such as polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate. The intermediate valve body 18 and the upper coil spring 21 are made of metal or synthetic resin.

  The spring coefficient of the upper coil spring 21 is, for example, 230 gf / cm to 1500 gf / cm, which is sufficiently smaller than the spring coefficient of the outer coil spring 10.

The basic features of the delay pump mechanism of FIGS.
(51) The user presses down the operation button 1 in the stationary mode of FIG. 5 and comes into contact with the cylindrical upper piston 15 integral with the button and the lower end of the cylindrical upper piston 15 (lower end of the annular hanging portion 15a). By moving the connecting piston (the cylindrical lower piston 4, the annular upper piston 16 and the sheath intermediate member 17) downward, the annular convex portion 20d comes into close contact with the discharge valve action portion 16d, and the intermediate valve body 18 is an annular receiving portion. Apart from 4b, the contents of the upstream filling chamber A ′ move to the intermediate filling chamber B ′ and the downstream filling chamber C (with the discharge valve closed) (s4 in FIG. 6),
(52) As the contents move to the downstream filling chamber C, the annular lower piston 9 is moved down by the pressure of the contents, so that the discharge target is discharged into the filling chamber C ′ (with the discharge valve closed). Is stored,
(53) After that, when the user stops the push-down operation of the operation button 1, the downstream filling chamber C ′ keeps its content volume substantially and keeps the discharge valve closed, so that the biasing force of the outer coil spring 10 is applied. Based on the above (see Figure 7),
(54) After the piece 20b of the sheath-like upper piston 20 in the middle of the upward movement comes into contact with the annular step portion 19d of the collar ring 19 and stops, the operation button 1, the tubular upper piston 15 and the connecting piston are sheathed. As a result, the discharge valve is opened, that is, as shown in FIG. 8, between the annular convex portion 20d of the sheath-like upper piston 20 and the discharge valve action portion 16d of the annular upper piston 16. Until close state is released,
(55) By releasing the close state, the contents of the downstream filling chamber C ′ are pushed out of the annular lower piston 9 which continues to move upward by the action of the outer coil spring 10, so that the discharge valve area in the open state and It flows out to the external space through the discharge passage 1b of the operation button 1 (s6 in FIG. 8).
That is.

  In this way, the discharge valve is kept closed while the operation button is being pressed or at the bottom dead center position in FIG. 6, and the user stops the operation button pressing operation, that is, the operation button moves the hand and fingers. The discharge valve is opened only after the operation button returns to the predetermined position (the position shown in FIG. 8), and the container contents are discharged into the external space.

  Therefore, the user can reliably receive the contents of the container with both hands including the hand that pushed the operation button down.

  FIG. 5 shows a state where the operation button 1 stops at its top dead center.

  At this time, a series of piston groups (cylindrical lower piston 4, annular lower piston 9, cylindrical upper piston 15 associated with the previous contents discharge operation are provided in the upstream filling chamber A ′, the intermediate filling chamber B ′, and the like. , The annular upper piston 16, the sheath-like intermediate member 17, and the sheath-like upper piston 20) are returned to their initial positions to contain the contents. Further, the suction valve and the intermediate valve are closed, and the discharge valve is opened.

  However, although the discharge valve is open, as shown in the figure, the annular lower piston 9 has its upper edge portion in close contact with the lower surface of the upper flange portion of the sheath-like intermediate member 17 and its reverse skirt portion 9b. Since it is in close contact with the outer peripheral surface below the hole 4a of the cylindrical lower piston 4, it is upstream of the space (a part of the downstream filling chamber C ', the intermediate filling chamber B' and the upstream side). The filling chamber A ′) does not communicate with the external space.

  The connecting piston (cylindrical lower piston 4, annular upper piston 16 and sheath-like intermediate member 17) and annular lower piston 9 are stationary at their respective top dead centers by the biasing force of the outer coil spring 10. That is, in the connecting piston, the upper surface portion 16e of the annular upper piston 16 contacts the lower end surface portion 19b of the collar ring 19, and the annular lower piston 9 contacts the lower surface of the upper flange portion of the sheath-like intermediate member 17 of the connecting piston. Yes.

  FIG. 6 shows a state where the operation button 1 of FIG. 5 is pushed down to the bottom dead center.

In the process where the operation button 1 in the stationary mode position is pushed down,
(61) First, the lower end portion of the annular hanging portion 15a of the cylindrical upper piston 15 integrated with the operation button abuts on the upper surface portion 16e of the stationary annular upper piston 16,
(62) After this contact, the cylindrical lower piston 4, the annular upper piston 16 and the sheath intermediate member 17 move downward integrally,
(63) At the initial stage of the downward movement, the piece portion 20b and the annular step portion 19d are separated from each other, and the discharge valve action portion 16d is held in close contact with the annular convex portion 20d by the urging force of the upper coil spring 21,
(64) As the cylindrical lower piston 4 continues to move downward, the volume of the upstream charging chamber A ′ decreases and the content pressure increases, so the intermediate valve body 18 resists its own weight. Move upward in shape,
(65) By the movement of the intermediate valve body 18, the area between the annular lower piston 4 and the annular receiving portion 4b of the cylindrical lower piston 4 that has been closed is opened,
(65) The contents of the upstream filling chamber A ′ flow into the intermediate filling chamber B ′ and the downstream filling chamber C ′ through the open space and the hole 4a (see s4).
(66) The bottom dead center of FIG. 6 is such that the annular lower piston 9 that receives the pressure downward as the contents flow into the downstream filling chamber C ′ resists the urging force of the outer coil spring 10. Move to position,
It will be. At this time, of course, the discharge valve remains closed.

  FIG. 7 shows a state in which the series of piston groups and the operation buttons are moved up with the discharge valve closed after the user stops the pressing operation of the operation button 1 in the push-down mode of FIG.

  When the pressing operation of the operation button 1 is released, first, an outline of a series of piston groups (a cylindrical lower piston 4, an annular lower piston 9, a cylindrical upper piston 15, an annular upper piston 16, a sheath intermediate member 17 and The sheath-like upper piston 20) and the operation button 1 move upward while maintaining the state of the downstream side filling chamber C ′ in FIG. 6 (the size of the space region, the closed state of the discharge valve, etc.) as they are.

  At this time, in the same manner as the suction valve operation of the normal pump mechanism, the suction valve action portion 6b of the inner cylinder 6 is displaced upward in the form of resisting the elastic force of the supporting elastic piece portion 6c. The space between the annular receiving portion 5c is opened, and the container contents flow into the upstream filling chamber A from the small diameter inlet 5d (see s5).

  The piston group moves upward in a form corresponding to the inflow of contents from the small-diameter inlet 5d to the upstream filling chamber A '.

  Here, the small-diameter inlet 5d increases the inflow resistance of the contents from the container body 12 to the upstream side filling chamber A, and suppresses the moving speed of the piston group.

  Accordingly, from the start of the return mode of FIG. 7 (= the stage where the user releases his / her hand and finger from the operation button 1) to the start of the delayed operation mode of FIG. 8 (= the discharge valve is opened and the downstream filling chamber C is opened) 'Delay time until the contents start to be released to the external space).

  The moving drive source of the piston group is an outer coil spring 10 for biasing the annular lower piston 9.

  That is, the upward biasing force of the coil spring 10 is transmitted to the annular upper piston 16 through the contents of the annular lower piston 9 and the downstream filling chamber C ′, and the piston 16 is applied to the upper surface portion 16e. The annular drooping portion 15a of the cylindrical upper piston 15 is placed, so to move upward in the form of an integral body with the connecting piston.

  The integrated upward movement of this piston group (cylindrical lower piston 4, annular lower piston 9, cylindrical upper piston 15, annular upper piston 16, sheath intermediate member 17 and sheath upper piston 20) is in the form of a sheath. The operation continues until the piece 20b of the upper piston 20 contacts the annular step 19d of the collar ring 19.

  At this time, the movement stroke from the start of the upward movement of the piston group to the contact with the collar ring 19 is, for example, 20 to 25 mm, and the required movement time is, for example, 4 to 7 seconds.

  FIG. 8 shows a state in which after the piece 20b of the sheath-like upper piston 20 abuts on the annular step portion 19d of the collar ring 19, piston groups other than the sheath-like upper piston 20 (cylindrical lower piston 4, annular lower piston). 9, a cylindrical upper piston 15, an annular upper piston 16 and a sheath-like intermediate member 17) are integrally moved upward, and a discharge valve in which an upper surface portion 16e of the annular upper piston 16 is in contact with a lower end surface portion 19b of the collar ring 19 Fig. 4 shows the delayed operating mode in the open state.

That is, when the piece 20b comes into contact with the lower end surface portion 19b,
(71) The sheath-like upper piston 20 is of course stopped in contact with the lower end surface portion 19b,
(72) The cylindrical lower piston 4, the annular upper piston 16 and the connecting piston of the sheath-like intermediate member 17 which are in contact with the annular convex portion 20d of the annular upper piston 8 are connected to the upper coil spring by the urging force of the outer coil spring 10. 21 is moved upward while compressing,
(73) With the upward movement of the connecting piston, the close contact state between the discharge valve action portion 16d and the annular convex portion 20d is released, the discharge valve is opened, and the upper surface portion 16e of the annular upper piston 16 is colored. Transition to a state in contact with the lower end surface portion 19b of 19,
(74) When the discharge valve is opened, the annular lower piston 9 is moved upward by the urging force of the outer coil spring 10, whereby the content of the downstream filling chamber C becomes “the groove shape of the annular upper piston 16. Part 16a-discharge valve region hole 20e-inner space region of the sheath-like upper piston 20-inner space region of the cylindrical upper piston 15-discharge passage 1b of the operation button 1 "
It will be.

  The annular lower piston 9 stops when its upper edge portion comes into contact with the lower surface of the upper flange portion of the sheath-like intermediate member 17 and returns to the stationary mode state of FIG.

  Of course, the present invention is not limited to the illustrated delay pump mechanism.

  For example, the components for increasing the content inflow resistance of the inlet portion from the container body 12 to the cylinder 5 may be of any shape and structure in addition to the illustrated small diameter inlet 5d.

  1 to 4, after the annular upper piston 8 is stopped in the final stage of the return mode shown in FIG. 3, the connecting piston (sheath-like upper piston 2) is driven upward. The inner coil spring 11 for positively opening the discharge valve is actively used, but this may be omitted.

In this case, after the annular upper piston 8 moving upward in the return mode of FIG.
(81) Due to the inertia force in the upward direction based on the interlocking with the annular upper piston 8 until then, the discharge valve is opened,
(82) After this transition, the discharge valve open state is maintained by the frictional force received from the reverse skirt portion 9b of the annular lower piston 9;
It will be.

  Pump-type products to which the present invention is applied include alcohol disinfectants, liquid soaps, shampoos, rinses, cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyeing There are various types of applications such as agents, hair restorers, cosmetics, and shaving foam.

  The contents stored in the container body are, for example, water, alcohols, oil components, surfactants, polymer compounds, powdered materials, active ingredients according to each application, and the like.

  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.

  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.

  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.

  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.

  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, Coolants 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.

It is explanatory drawing which shows the stationary mode of a delay type pump mechanism (the 1). The push-down mode in which the operation button in FIG. 1 is pushed down to its lowest position, that is, the intermediate valve is opened and the contents of the upstream filling chamber A are moved to the intermediate filling chamber B and the downstream filling chamber C. It is explanatory drawing which shows. The state where the discharge valve (output valve to the external space) is still closed after the operation of pressing the operation button in FIG. 2 is closed, that is, the contents are confined in the downstream side filling chamber C, and the piston groups are first placed as they are. It is explanatory drawing which shows the return mode of the state which moves up toward the still mode position. Explanation of a delayed operation mode in which the discharge valve (output valve to the external space) is opened in the latter half of the return mode of FIG. 3, that is, the contents of the downstream filling chamber C are discharged from the discharge valve to the external space. FIG. It is explanatory drawing which shows the stationary mode of a delay type pump mechanism (the 2). The state in which the operation button in FIG. 5 is pushed down to its lowest movement position, that is, the state in which the intermediate valve is opened and the contents in the upstream filling chamber A ′ are moved to the intermediate filling chamber B ′ and the downstream filling chamber C ′. It is explanatory drawing which shows pushing-down mode. FIG. 6 shows a state in which the discharge valve (output valve to the external space) is still closed after the release operation of the operation button is released, that is, the contents are confined in the downstream filling chamber C ′, and the piston groups are left as they are. It is explanatory drawing which shows the return mode of the state which moves up toward the 1st still mode position. FIG. 7 shows a state in which the discharge valve (output valve to the external space) is opened in the latter half of the return mode, that is, a delayed operation mode in which the contents of the downstream filling chamber C ′ are discharged from the discharge valve to the external space. It is explanatory drawing.

Explanation of symbols

1: Operation button 1a: Screw portion 1b: Discharge passage 2: Sheath-shaped upper piston 2a: Concave portion 2b: Annular hanging portion 2c: Discharge valve action portion 3: Sheath-like intermediate piston 3a: Intermediate valve action portion 3b : Elastic piece portion 4: cylindrical lower piston 4a: hole portion 4b: annular receiving portion 4c: inflow port 4d: vertical rib-like portion 4e: skirt portion 5: cylinder 5a: annular flange portion 5b: decompression preventing hole portion 5c : Annular receiving portion 5d: small diameter inlet 5e: vertical rib-like portion 6: inner cylinder 6a: penetrating portion 6b: suction valve action portion 6c: elastic piece portion 6d: annular bottom surface portion 6e: annular flange portion 7: coloring ring 7a: Screw portion 7b: Lower end surface portion 7c: Vertical rib-shaped portion 8: Annular upper piston 8a: Groove-shaped portion 8b for passage of contents: Skirt portion 8c: Skirt portion 8d: Reverse skirt portion (discharge valve action portion)
8e: outer upper surface portion 9: annular lower piston 9a: skirt portion 9b: reverse skirt portion 9c: annular step portion 10: outer coil spring 11: inner coil spring 12: container body 12a: neck portion 13: annular sealing member 14: cover Cap 15: cylindrical upper piston 15a: annular hanging portion 15b: slit-like portion 16: annular upper piston 16a: groove-like portion 16b: skirt portion 16c: tubular portion 16d: discharge valve action portion 16e: upper surface portion 17: sheath shape Intermediate member 18: Intermediate valve body 19: Color ring 19a: Screw portion 19b: Lower end surface portion 19c: Vertical rib portion 19d: Annular step portion 20: Sheath-like upper piston 20a: Upper skirt portion 20b: Single portion 20c: Lower side Skirt portion 20d: annular convex portion (discharge valve action portion)
20e: Hole 21: Upper coil spring A, A ′: Upstream filling chamber B, B ′: Intermediate filling chamber C, C ′: Downstream filling chamber s1: From upstream filling chamber A to intermediate filling chamber B and downstream side Flow of contents to filling chamber C s2: Flow of contents from container body side to upstream filling chamber A s3: Flow of contents from downstream filling chamber C to external space s4: Upstream filling chamber A ′ From the container body side to the upstream filling chamber A ′ s6: Contents from the downstream filling chamber C ′ to the external space Flow of things

Claims (6)

A delay pump mechanism having a function in which the container contents are discharged to the external space with a delay from the end of the user's discharge operation,
An operation unit for the discharge operation;
An upstream space region in which the content pressure between the suction valve and the intermediate valve of the content increases by the discharge operation;
The downstream space area into which the contents of the upstream space area flows without being released into the external space by opening the intermediate valve of the upstream space area in response to the increase in the contents pressure;
Upon completion of the discharge operation, the downstream space area is displaced to a predetermined position while the discharge valve to the external space is closed and the contents are stored, and then the discharge valve is opened and the discharge valve is opened. A delay actuating means for releasing the contents into the external space ,
The discharge valve is
Between each, it consists of the first and second discharge valve action portion set in the open state or the closed state,
The delay actuating means includes
In conjunction with the operation part, a first moving member in which the first discharge valve action part is formed;
A second moving member that is moved based on the discharge operation and in which the second discharge valve action part is formed;
A regulating member for setting the predetermined position of the second moving member,
When the first moving member and the second moving member return to the stationary mode position upon completion of the discharge operation,
The first and second discharge valve action portions are:
By further movement of the first moving member after the second moving member is stopped by the contact action with the restricting member and the downstream space area is displaced to the predetermined position,
Transition from the previous closed state to the open state,
A delay pump mechanism characterized by that . A delay pump mechanism having a function in which the container contents are discharged to the external space with a delay from the end of the user's discharge operation,
An operation unit for the discharge operation;
An upstream space region in which the content pressure between the suction valve and the intermediate valve of the content increases by the discharge operation;
The downstream space area into which the contents of the upstream space area flows without being released into the external space by opening the intermediate valve of the upstream space area in response to the increase in the contents pressure;
Upon completion of the discharge operation, the downstream space area is displaced to a predetermined position while the discharge valve to the external space is closed and the contents are stored, and then the discharge valve is opened and the discharge valve is opened. A delay actuating means for releasing the contents into the external space ,
The delay actuating means includes
A first piston that forms the upstream space region in conjunction with the operating portion;
A second piston and a third piston that form the downstream space area together with the first piston on the downstream side of the intermediate valve;
A first elastic member that biases the second piston to a stationary mode position;
The discharge valve formed between the first piston and the third piston;
A regulating member for setting the predetermined position of the third piston,
By the movement of the first piston based on the release operation of the operation unit,
The intermediate valve is opened, the discharge valve is closed, and the suction valve is closed to allow the contents of the upstream space area to flow into the downstream space area, and the third piston is the first piston. In conjunction with the piston,
With the inflow of contents into the downstream space area with the discharge valve closed, the second piston moves in a form against the first elastic member,
By the return operation of the second piston based on the first elastic member after the operation of releasing the operation unit is completed,
While the discharge valve is closed as before and the contents of the downstream space area are retained, the first and third pistons are interlocked toward the regulating member,
After the third piston is stopped by the action of the regulating member, the discharge valve is opened by further movement of the first piston,
The contents of the downstream space area are released from the discharge valve in the open state to the external space by a biasing force of the first elastic member against the second piston,
The delay pump mechanism according to claim 1. The upstream space area is
A spatial region set between the first piston and the cylinder;
The downstream space area is
A space region set between the first piston, the second and third pistons outside the first piston, and a cylinder;
3. The delay pump mechanism according to claim 2, wherein: The delay actuating means includes
A second elastic member for biasing the first piston to the stationary mode position;
The delay pump mechanism according to claim 2, wherein the delay pump mechanism is provided. The inlet to the upstream space area is
The content inflow resistance there is increased, and the speed when the first and third pistons interlock with the regulating member is reduced.
3. The delay pump mechanism according to claim 2, wherein: The delay pump mechanism according to any one of claims 1 to 5 is provided, and the contents are accommodated.
This is a pump-type product.

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