JP2014240286A - Pump mechanism for content discharge and pump type product having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure prefer valve action of a downstream valve body over a long period in a pump mechanism for content discharge.SOLUTION: An upper valve body 5a whose whole body is capable of moving in an opening/closing direction of a downstream valve is used as a downstream valve body, and an upper valve member 5 formed of the upper valve body is energized in a direction of a downstream valve closing state where the upper valve body contacts to a valve seat 3a of a lower piston 3 tightly by elastic force of a coil spring 9. The downstream valve body can be applied to an airless specified pump mechanism having a movable bottom plate 13f, and in addition, applied to a general pump mechanism which introduces outside air into the container according to injection of content.

Description

  According to the present invention, the contents stored in the cylinder inside the container body are released into the external space through the downstream valve that shifts from the closed state to the open state by the release operation of the operation button. The present invention relates to a pump mechanism.

  In particular, the present invention relates to a content discharge pump mechanism in which the entire valve body of the downstream valve moves between a closed position and an open position and is urged by an elastic member toward the closed position.

The present invention is also directed to a pump mechanism for discharging contents for use upside down.
The terms “upper” and “lower” described in the present specification indicate the upper and lower sides in the upright state of the content discharge pump mechanism.

  Further, in this specification, the downstream valve corresponding to the so-called outlet of the storage space area B to be described later is referred to as “upper valve” and “discharge valve”, and the upstream valve corresponding to the inlet is also referred to as “lower”. “Valve” and “Suction valve”.

  The pump mechanism that discharges the contents stored in the cylinder inside the container body to the external space by the operation of releasing the operation button is highly convenient and widely used for various purposes. (See Patent Document 1 below).

  In this type of pump mechanism, the storage space area of the cylinder provided inside the container body (the storage area for the contents to be released next time) is, so to speak, an upstream valve (downward valve, suction valve) on the inlet side and a downstream valve on the outlet side. (Upper valve, discharge valve).

  As the downstream valve (valve element), a rubber valve that deforms itself by receiving the content pressure in the cylinder storage space is used.

  The rubber valve (downstream valve element) is deformed when the content pressure in the storage space region is increased by the content discharge operation, and the close state with the downstream valve seat is released. That is, the downstream valve is opened, and the storage space area and the content output hole portion communicate with each other.

Japanese Utility Model Publication No. 07-013455

Thus, the conventional content discharge pump mechanism uses a rubber valve as a downstream valve.
The rubber valve itself deforms due to an increase in content pressure in the storage space area during the content discharge operation, and returns to its initial shape due to a decrease in content pressure based on the content discharge from the storage space area to the external space. .

  The rubber valve as the downstream valve body has advantages such as low cost and easy assembly.

  However, since the downstream valve is opened and closed by the deformation action and the return action of the rubber valve itself, there is still room for improvement in terms of a decrease in the downstream valve action due to the elastic deterioration of the rubber valve.

  The present invention uses, as a downstream valve body, not a rubber valve, but a valve member that can move in the opening and closing direction of the downstream valve, and the valve member is closed with a valve seat by an elastic force such as a coil spring. The purpose is to ensure good valve action over a long period of time in the downstream valve body.

The present invention solves the above problems as follows.
(1) A storage space area (for example, a storage space area B described later) between an upstream valve and a downstream valve of an internal cylinder (for example, cylinders 7, 21, 35 described later) of a container body (for example, a container body 13, 23 described later). The contents stored in () are discharged into the external space through the downstream valve that shifts from the closed state to the open state by the release operation of the operation buttons (for example, operation buttons 1 and 31 described later). In the pumping mechanism for material discharge,
As a valve body of the downstream valve (for example, an upper valve body 5a described later),
The whole moved between the position of the closed state and the position of the open state, and urged by an elastic member (for example, an upper coil spring 9 described later) toward the position of the closed state,
A valve member is used.
(2) In (1) above,
As the elastic member,
The valve member, a valve seat of the downstream valve (for example, an upward annular stepped portion 3a described later), and a content discharge passage portion (for example, a vertical groove-shaped portion 3c described later, an inwardly facing vertical inward) of the valve seat. A piston member (for example, an upper piston 2 and a lower piston 3 described later) that defines the vertical space between the rib-like portions 2b and interlocks with the operation button.
Use things.
(3) In the above (1) and (2),
The operation buttons are
It is a vertical sliding type and has at least a pair of finger-hanging operation portions (for example, a finger-hanging operation portion 1a described later),
As the container body,
With a movable bottom plate (for example, a movable bottom plate 13f described later) of an airless pump specification,
Use things.
(4) In (1) and (2) above,
On the upstream side of the upstream valve,
A channel setting mechanism for selectively setting the content flow path from the inside of the container main body (for example, a storage space area A described later) to the upstream valve at the time of using each of the upside-down positions (for example, for defining a flow path described later) The upper bush 36, the lower bush 37 for defining the flow path, the intermediate ball valve 38, the lower ball valve 39, and the cylinder cover 40) were provided.
Use things.

  The present invention is directed to the content discharge pump mechanism having the above features, and also to a pump-type product including the content discharge pump mechanism.

  The present invention can secure good valve action over a long period of the downstream valve body by adopting the above configuration.

It is explanatory drawing which shows the static mode (both an upstream valve and a downstream valve are closed) of an airless specification content discharge | emission pump mechanism by upward injection which made the nasal cavity etc. the content discharge | release target site | parts. It is explanatory drawing which shows the state which expanded the cylinder periphery of the pump mechanism for content discharge of FIG. It is explanatory drawing which shows the content discharge state (an upstream valve is closed and a downstream valve is open) around the cylinder of FIG. It is explanatory drawing which shows the perspective view of the columnar member 8 of FIGS. It is explanatory drawing which shows the stationary mode of the pump mechanism for content discharge | emission using the general purpose suction pipe instead of the airless specification of FIG. It is explanatory drawing which shows the stationary mode of the pump mechanism for the content discharge | release of a normal inversion specification by forward injection. It is explanatory drawing which shows the content inflow state to the storage space area B with the cancellation | release of the content discharge | release operation of the pump mechanism for content discharge | emission (upright use) of FIG. It is explanatory drawing which shows the content inflow state to the storage space area B with the cancellation | release of the content discharge | release operation of the pump mechanism for content discharge | emission (inverted use) of FIG.

  The form for implementing this invention is demonstrated using FIG. 1 thru | or FIG.

  1 to 4 are directed to a pump mechanism of an airless specification with upward injection, FIG. 5 is directed to a pump mechanism of a suction pipe specification with upward injection, and FIGS. Is targeted.

The basic features common to the pump mechanisms of various specifications shown in FIGS.
(11) The upper valve body 5a of the upper valve (downstream valve, discharge valve) is configured in the form of an upper valve member 5 that moves up and down in response to the content discharge operation,
(12) The upper valve body 5a is urged by the elastic action of the upper coil spring 9 in a direction in close contact with the upper valve seat (the upward annular step 3a of the lower piston 3).
That is.

  In addition, it has shown that the component (for example, a pair of finger operation part 1a) which the reference number with an alphabet below shows is a part of component (for example, operation button 1) of the reference number without an alphabet.

1 to 6,
1 is a slidable operation button for a nose and airless pump type product,
1a is a pair of finger-hanging operation parts formed in a so-called parallel state on the part on the opposite side of the outer peripheral surface of the operation button,
1b is an upper opening sheath portion of the operation button,
1c is a lower opening sheath-like portion communicating with the upper opening sheath-like portion 1b via a hole,
1d is a cylindrical part attached to the upper opening sheath-like part 1b in a fitted state, and provided with a plurality of vertical grooves for passing the contents in the surface circumferential direction;
1e is an upward output hole set in the upper surface portion of the operation button,
Respectively.

Also,
2 is a cylindrical upper piston which is attached to the lower opening sheath 1c of the operation button 1 in a fitted state and interlocks with the operation button;
2a is an upper ring convex portion formed in the circumferential direction below the outer peripheral surface of the upper piston,
2b is formed in the vertical direction on the circumferential jump of the inner circumferential surface of the upper piston, and a plurality of inward vertical rib-shaped portions through which the contents pass through the groove-shaped portions between the adjacent ones;
Respectively.

Also,
3 is a columnar lower piston which is attached to the inward vertical rib-like portion 2b of the upper piston 2 in an engaged state and interlocks with the upper piston.
3a is an upward annular stage formed in an L-shaped aspect below the outer peripheral surface of the lower piston and acting as a downstream valve and a discharge valve (upper valve seat) with an upper valve body 5a described later. Department,
3b is a downward annular step portion for receiving a coil spring formed on the outer peripheral surface substantially directly below the upward annular step portion 3a.
3c is a plurality of longitudinal groove-like portions formed in the vertical direction in the circumferential jump of the upper portion of the upper annular step portion 3a on the lower piston outer peripheral surface, through which the contents pass,
Respectively.

Also,
4 is an annular cylinder bush that defines the uppermost moving position of the upper piston 2 and the lower piston integral therewith,
4a is an annular tapered surface that holds and holds the upper annular convex portion 2a of the upper piston 2 at the uppermost moving position;
Respectively.

Also,
Reference numeral 5 denotes a seal state in close contact with the inner peripheral surface of the lower end side of the upper piston 2, and the entire upper part moves in the vertical direction with respect to the lower piston 3 so as to exhibit a valve action with the lower piston. Valve members (downstream valves, discharge valves),
5a is a longitudinal section L-shaped portion on the lower end side of the inner peripheral surface of the upper valve member, and is an upper valve body that exhibits a discharge valve action with the upward annular stepped portion 3a,
5b is formed on the outer peripheral surface of the upper valve member, and when the upper valve member moves up to the uppermost position with respect to the upper piston 2, a small-diameter annular step portion that comes into contact with the lower end surface portion of the upper piston,
5c is a large-diameter annular step portion for receiving a coil spring formed on the outer peripheral surface portion almost directly below the small-diameter annular step portion 4b;
5d is a reverse skirt portion which is formed on the outer upper side of the large-diameter annular step portion 5c and exhibits a sealing action,
5e is a skirt portion formed on the outer lower side of the large-diameter annular step portion 5c to exhibit a sealing action,
Respectively.

Also,
6 is a ball valve (upstream valve, suction valve) that acts as a lower valve body with an annular receiving portion 7a described later,
7, the cylinder bush 4 is engaged and fixed in its upper opening, and the upper piston 2 (lower part), the lower piston 3, the upper valve member 5 and the ball valve 6 are disposed in the internal space. , A cylinder for storing the contents to be released next time,
7a is an annular receiving portion (lower valve seat) that is formed in a conical shape on the inner peripheral surface portion almost directly above the cylinder lower end opening, and exhibits a valve action with the ball valve 6;
7b is an annular convex portion formed on the inner peripheral surface of the upper opening side of the cylinder and exhibiting an engaging action with the cylinder bush 4;
7c is an annular flange formed on the upper outer peripheral surface side of the cylinder,
7d is an intermediate annular step for air venting (priming) described later,
Respectively.

Also,
8 is a columnar member that is incorporated in a cylinder internal space substantially immediately above the ball valve 6 and has both a capacity reducing function of a storage space area B described later and a pressing function of the ball valve;
8a is a small-diameter solid or hollow cylindrical part having the capacity reduction function described above,
8b is a concave portion for passing the contents formed in the vertical direction of the outer peripheral surface of the cylindrical portion 8a,
8c is the bottom surface of the cylindrical portion 8a,
8d is a cylindrical portion having the above-described ball valve presser function and capacity reducing function at a large diameter portion continuing below the cylindrical portion 8a;
8e is an upper surface of the cylindrical portion 8d and a stepped portion having a C-shaped planar shape in which the range following the concave portion 8b is missing,
8f is three longitudinal grooves for passage of contents formed at equal intervals in the circumferential direction of the cylindrical portion 8d.
8g is an elastic piece for holding the ball valve formed so as to protrude from the longitudinal groove 8f to the center of the cylindrical portion,
8h is an inner peripheral surface between the longitudinal grooves 8f,
8j is a peripheral surface opening formed in the circumferential direction of the cylindrical portion 8d in a mode that consists of a lower end portion having the same height as the upper surface of the elastic piece portion 8g and follows the concave portion 8b;
Respectively.

Also,
9 is provided between the upper ring-shaped convex portion 2a (the lower surface portion) of the upper piston 2 and the large-diameter annular step portion 5c of the upper valve member 5, and attaches the upper valve member downward with respect to the upper piston. An upper coil spring that biases the upper valve body 5a into a contact state with the upward annular step (upper valve seat) 3b of the lower piston 3;
10 is provided between the downward annular step 3b of the lower piston 3 and the step 8e of the columnar member 8, and urges the lower piston and the upper piston 2 upward, that is, an operation button integrated with the upper piston. A lower coil spring that biases 1 to its rest mode position,
11 is an annular seal member disposed on the bottom surface of the annular flange 7c of the cylinder 7,
Respectively.

Also,
Reference numeral 12 denotes a cylinder 7 that incorporates each component from the uppermost operation button 1 to the lowermost ball valve 6 and an annular seal member 11. Screw cap,
12a is an inner screw portion formed on the inner surface of the lower opening side of the screw cap,
12b is formed in the upper part of the screw cap, and an annular concave part into which the outer lower cylindrical part of the operation button 1 enters when the contents are released.
Respectively.

Also,
13 is a container body containing the contents to be released at the upper opening,
13a is the upper opening side cylindrical part (neck part) of the container body,
13b is an outer screw portion formed on the outer peripheral surface of the upper opening side cylindrical portion 13a and screwed to the inner screw portion 12a of the screw cap 12.
13c is a sheath-like bottom lid fitted to the outer peripheral surface of the container body body,
13d is an air inflow hole formed in the bottom surface of the bottom lid 13c,
13e is an inner annular upright portion formed on the bottom portion of the bottom lid 13c,
13f is a movable bottom plate that moves upward in accordance with a decrease (pressure drop) of contents in the storage space area A described later,
13g is a movable bottom plate reverse skirt portion formed on the movable bottom plate 13f, the upper end portion of which is in close contact with the inner peripheral surface of the container main body,
13h is a movable bottom plate skirt portion formed on the movable bottom plate 13f, the lower end portion of which is in close contact with the inner peripheral surface of the container main body,
13j is a bottom step portion for abutting the inner annular upright portion 13e to specify the lowest position of the movable bottom plate 13f,
13k is incorporated in the so-called ceiling portion of the container body, and when the movable bottom plate 13f moves to its uppermost position, it abuts against the annular upper surface portion of the movable bottom plate, so that the contents stored in the airless pump are not released in principle. An annular ceiling adjustment member that closes the space,
Respectively.

Also,
A is the inside of the container body, and the contents storage space up to the cylinder (upstream valve),
B is the inside of the cylinder, the storage space area of the contents to be released next time set between the upstream valve and the downstream valve,
Respectively.

  Here, the operation button 1, the upper piston 2, the lower piston 3, the cylinder bush 4, the upper valve member 5, the cylinder 7, the columnar member 8, the screw cap 12, the container body 13, and the like are nylon, polyacetal, polyethylene, polypropylene, polyethylene terephthalate. , Synthetic resin made of polybutylene terephthalate, NBR, neoprene, butyl rubber or the like.

  The ball valve 6, the upper coil spring 9, and the lower coil spring 10 are made of synthetic resin or metal. The annular seal member 11 is made of synthetic resin or rubber.

The pump mechanism of FIGS.
(21) Each component of the operation button 1, the upper piston 2 and the lower piston 3 is set in the form of a single member connected (fitted) in the vertical direction as a whole,
(22) This single member, cylinder bush 4, upper valve member 5, ball valve 6, columnar member 8, upper coil spring 9 and lower coil spring 10 are respectively incorporated inside the cylinder 7,
(23) The assembled cylinder 7 and the annular seal member 11 are attached to the inside of the screw cap 12,
(24) The screw cap 12 after the attachment is screwed into the upper opening side tubular portion 13a of the container body 13.

In the stationary mode of FIGS. 1 and 2,
(31) The single member of the operation button 1, the upper piston 2 and the lower piston 3 is moved upward by the elastic force of the lower coil spring 10, and the upper ring convex portion 2a of the upper piston is the ring taper of the cylinder bush 4. Rests at the uppermost position in contact with the surface 4a,
(32) The upper valve member 5 is moved downward by the elastic force of the upper coil spring 9 (relative to the lower piston 3), so that the upper valve body 5a of the upper valve member is the upward annular stage of the lower piston 3 It stops at the position of the upper valve closed state in close contact with the part 3a,
(33) The ball valve 6 is moved down by the elastic force of the elastic piece portion 8g and is stationary at the position where the lower valve is in close contact with the annular receiving portion 7a of the cylinder 7.

  In addition, the storage space B inside the cylinder has a container in which the ball valve 6 is shifted to the open state in accordance with the upward return operation of the upper piston 2 and the lower piston 3 based on the end of the previous content discharge operation. The contents flowing from the accommodation space area A of the main body 13 are stored. This is the next content to be released.

In the pressed state of the operation button in FIG.
(41) The upper piston 2 integral with the operation button 1 moves down in a manner that resists the elastic force of the upper coil spring 9;
(42) Due to the capacity decrease of the storage space area B accompanying the downward movement of the upper piston 2, the pressure of the contents in the storage space area increases,
(43) As the content pressure increases, the upper valve member 5 moves upward relative to the lower piston 3 against the elastic force of the lower coil spring 10,
(44) Due to the relative upward movement of the upper valve member 5, the upper valve body 5a of the upper valve member is separated from the upward annular step portion 3a of the lower piston 3, that is, the upper valve which is the so-called outlet of the storage space B Transitions from the previous closed state to the open state,
(45) The lower valve (the ball valve 6 and the annular receiving portion 7a of the cylinder 7) is closed as in the stationary mode.

  Thus, when the upper valve (the upward annular step portion 3a and the upper valve member 5) is opened, the storage space area contents in a pressure state higher than the outside air are discharged to the external space area.

  The discharge path of the contents of the storage space area is roughly as follows: “Storage space area B—Open upper valve—Vertical groove portion 3 c of the lower piston 3 —Groove portion between the vertical rib portions 2 b of the upper piston 2 —Upper The internal passage of the piston 2 -the internal passage of the operation button 1 -the output hole 1e ".

  As the content is released, the content pressure in the storage space B decreases, and the “upper valve member 5 receives from the upper coil spring 9 in the downward direction than the content pressure in the upward direction acting on the upper valve member 5. When the “elastic force to + the dead weight of the upper valve member 5” becomes larger, the upper valve member moves downward.

  As a result, the upper valve body 5a is in close contact with the upward annular step 3a of the lower piston 3, and the upper valve shifts from the open state to the closed state. That is, the discharge operation of the contents in the storage space area B is completed.

  When the user releases the pressing operation of the operation button 1, the integrated “operation button 1 + upper piston 2 + lower piston 3” is restored upward by the elastic force of the lower coil spring 10. At this time, the upper valve body 5a remains in close contact with the upward annular step 3a.

And
(51) The capacity of the storage space B increases as the integrated "operation button 1 + upper piston 2 + lower piston 3" returns upward,
(52) As the capacity of the storage space area B increases, the pressure therein becomes smaller than the content pressure in the storage space area A of the container body 13,
(53) As a result, the ball valve 6 moves upward while resisting the pressing elastic force of the elastic piece 8g of the columnar member 8, that is, the lower valve (ball valve 6 + annular receiving portion 7a of the cylinder 7) Shift from the closed state to the open state until
(54) By the shift of the lower valve to the open state, the contents of the storage space area A of the container body 13 flow into the storage space area B,
(55) The contents flowing into the storage space area B are discharged from the output hole 1e to the external space area when the operation button 1 is pressed down the next time.

Note that the above (52) is supplemented as follows.
As the content pressure in the storage space region B during the return operation of the upper piston 2 and the lower piston 3 decreases, the downward resultant force on the ball valve 6 (downward content pressure from the storage space region B of the cylinder 7, The self-weight of the ball valve 6 and the elastic biasing force of the three elastic piece portions 8g) are smaller than the upward content pressure from the accommodation space A with respect to the ball valve.

  Thereby, the ball valve 6 moves slightly upward while resisting the downward biasing force of the elastic piece 8g.

  Since the decompression ratio of the storage space area B when the piston returns is increased by the amount of the existing columnar member 8 (as compared to the case where the columnar member is not provided), the contents of the storage space area A are moved to the storage space area. A strong suction force acts.

  Due to this strong suction force, the contents of the housing space A of the container body 13 are “the lower space of the cylinder 7—the longitudinal groove 8f—the bottom surface 8c and the space between the elastic piece 8g (− It flows into the storage space area B of the cylinder 7 through a route such as “surface opening 8j) -concave portion 8b”.

  Due to the inflow of the contents, when the above-mentioned downward resultant force to the ball valve 6 exceeds the above-mentioned upward pressure, the ball valve surely moves downward and comes into close contact with the annular receiving portion 7a. Return to the stationary mode of FIGS.

  In addition, the pump type product of FIGS. 1-4 uses what is called an "airless pump", and according to the content discharge | release operation, the content of the accommodation space area A decreases and the pressure there falls, The movable bottom plate 13f, which is also a component of the accommodation space area, moves upward.

  This is because the movable bottom plate 13f communicates with the external space through the hole 13d of the bottom lid 13c, and the lower surface portion of the movable bottom plate receives upward atmospheric pressure.

  Further, the ball valve 6 is held by the inner peripheral surface 8h of the cylindrical portion 8d at the lateral portion thereof, and is pressed toward the annular receiving portion 7a by three equally spaced elastic pieces 8g.

  Thus, since the ball valve 6 is pressed down by the elastic piece portion 8g, the ball valve is held in close contact with the annular receiving portion 7a even if the pump type product is set in an inverted state.

  The reason why the intermediate annular step 7d of the cylinder 7 is formed is that the storage space area B is vented (primed) when the pump type product is used for the first time.

  That is, when the pump-type product is not in use, the storage space area B contains air exclusively. In this air storage state, even if the operation button 1 is pushed down, the air volume is merely changed, and the increase in air pressure until the upper valve member 5 moves upward to set the upper valve open state is unlikely to occur. .

  Therefore, when the user pushes down the operation button 1 of the pump-type product at the unused stage while the upper valve is closed, the skirt portion 5g of the upper valve member 5 comes into contact with the intermediate annular step portion 7d of the cylinder 7. Thus, the upper valve is forcibly set to an open state.

  When the upper valve is forcibly opened, the air that has initially entered the storage space B is output from the separated portion of the upper valve via the groove portion between the longitudinal groove portion 3c and the longitudinal rib portion 2b. It is reliably discharged from the hole 1e to the external space area.

  When the user releases the pressing operation of the operation button 1, the lower piston 3 and the like are moved up by the elastic force of the lower coil spring 10, and the pressure in the storage space area B decreases.

  As the pressure in the storage space area B decreases, the ball valve 6 that originally received the content pressure upward from the accommodation space area A moves away from the annular receiving portion 7 a of the cylinder 7.

  Due to this separation, the contents of the storage space area A of the container body 13 flow into the storage space area B of the cylinder 7, and the illustrated pump mechanism is set to the stationary mode of FIG.

  As clearly shown in FIG. 4, the columnar member 8 has a function of reducing the capacity of the storage space B inside the cylinder as a whole, and the ball valve 6 is moved downward by the elastic piece 8g of the cylindrical portion 8d. A single member that is integrally formed and has a function of energizing and restricting the movement of the ball valve 6 in the left-right direction (the radial direction of the cylindrical portion) by the jumping inner peripheral surface 8h of the cylindrical portion. It is.

  When the ball valve 6 is moved a little while resisting the urging force of the elastic piece 8g and the ball valve is opened, the contents of the storage space A inside the container main body pass through the three longitudinal grooves 8f and the like inside the cylinder. Flow into.

  The peripheral surface opening 8j can be said to be a so-called outlet of a mold used for setting a space area between the bottom surface 8c of the cylindrical portion 8a and the three vertical groove portions 8f. It also acts as a passage area for contents entering from 8f.

  The pump unit (upper piston 2, lower piston 3, cylinder bush 4, upper valve member 5, ball valve 6, cylinder 7, columnar member 8, upper coil spring 9, lower coil spring 10, before mounting on the container body 13; The assembly procedure of the annular seal member 11 and the screw cap 12) is, for example, as follows.

(61) The upper valve member 5 and the upper coil spring 9 are sequentially passed from above the lower piston 3 and then attached to the upper piston 2 to form a piston unit.
(62) From the upper opening of the cylinder 7, the ball valve 6 is placed on the annular receiving portion 7a, and the columnar member 8 is attached so as to hold it down.
(63) From the upper opening of the cylinder 7, the lower coil spring 10 and the piston unit are sequentially inserted, and the cylinder bush 4 is passed through the piston unit from above to be fitted into the upper opening of the cylinder.
(64) Pass the upper piston 2 through the central hole of the screw cap 12, and attach the screw cap to the cylinder 7.
(65) The annular seal member 11 is attached from below the cylinder 7 so as to contact the annular flange 7c.

  FIG. 5 shows a stationary mode of a pump mechanism in which the contents of the container main body are sent to the cylinder via a suction tube attached to the cylindrical portion on the lower end side of the cylinder, not the pump mechanism of the airless specification.

  The reference numbers newly used here are 21 to 24 below. The other reference numerals are the same as those in FIGS.

In FIG.
21 has a cylinder bush 4 engaged and fixed in its upper opening, and an upper piston 2 (lower part), a lower piston 3, an upper valve member 5 and a ball valve 6 are disposed in the internal space. , A cylinder for storing the contents to be released next time,
21a is an annular receiving portion (lower valve seat) which is formed in a conical surface form on the inner peripheral surface portion directly above the cylinder lower end opening and exhibits a valve action with the ball valve 6;
21b is an annular convex portion formed on the inner peripheral surface of the upper opening side of the cylinder and exhibiting an engaging action with the cylinder bush 4;
21c is an annular flange formed on the upper outer peripheral surface of the cylinder,
21d is an annular taper portion for receiving the coil spring formed in the circumferential direction of the inner peripheral surface immediately above the annular receiving portion 21a;
21e is a cylindrical part on the lower end side for attaching the suction pipe formed on the lower end side of the cylinder,
21f is a hole for introducing outside air that is formed on the cylinder circumferential surface substantially immediately below the annular seal member 11 to prevent decompression of the accommodation space area A due to the discharge of the contents to the external space area;
21g is an intermediate annular step for venting (priming),
Respectively.

Also,
22 is provided between the downward annular step portion 3b of the lower piston 3 and the annular taper portion 21d of the cylinder 21 to urge the lower piston and the upper piston 2 upward, and a ball valve at its lower end portion. A lower coil spring for restricting the upward movement of 6,
23 is a fixed bottom type with a top opening and a general-purpose container body that contains the contents to be released.
23a is the upper opening side cylindrical part (neck part) of the container body,
23b is formed on the outer peripheral surface of the upper opening side tubular portion 33a, and is an outer screw portion that is screw-coupled to the inner screw portion 12a of the screw cap 12.
24 is a suction pipe attached to the lower cylindrical portion 27e of the cylinder 27;
Respectively.

  Here, the cylinder 21, the container main body 23 and the suction pipe 24 are made of synthetic resin such as nylon, polyacetal, polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, NBR, neoprene, butyl rubber or the like. The lower coil spring 22 is made of metal or synthetic resin.

The contents discharge pump mechanism of FIG. 5 is different from that of FIGS.
(71) The cylinder 21 includes an annular tapered portion 21d that receives the lower end side of the lower coil spring 22, a lower end side cylindrical portion 21e for attaching the suction pipe, and an outside air introduction hole portion 21f.
(72) The ball valve 6 is restricted from moving upward by the lower end portion of the lower coil spring 22,
(73) The suction pipe 24 is engaged and fixed to the lower end side cylindrical portion 21e of the cylinder 21,
(74) The container body 23 includes a fixed bottom surface portion, and an inflow opening of the suction pipe 24 is located at an outer peripheral end portion thereof.
And so on.

  The operation of releasing the contents of the storage space area B from the output hole 1e to the external space based on the pressing operation of the operation button 1 and the contents of the accommodating space area A of the container main body 23 when the pressing operation is released. The operation in which an object flows into the storage space B, the assembly procedure of the pump unit, and the like are the same as those in FIGS.

  FIG. 6 shows an upright stationary mode of a pump mechanism of the upside-down use type, FIG. 7 shows a state in which the content discharge operation is canceled in an upright state, and FIG. 8 shows a state in which the content discharge operation is canceled in an inverted state. Yes.

  The reference numbers newly used here are 31 to 41 below. Other reference numbers are the same as those shown in FIGS.

6 to 8,
31 is an operation button attached to the upper piston 2 and movable in the vertical direction.
31a is a content passage formed inside the operation button,
31b is a forward discharge nozzle attached to the output side of the content passage 31a,
Respectively.

Also,
32 is a cylinder bushing with a hook-shaped part that defines the uppermost moving position of the upper piston 2 and the lower piston 3 integrated therewith,
32a is a bowl-shaped part formed on the lower end side of the cylinder bush,
33 is an annular seal member engaged with the ceiling surface of the cylinder bush 32,
Respectively.

Also,
34 is an upside-down common upper ball valve that exhibits the same valve action as the ball valve 6 (forward-inverted shared valve body),
35 is fitted and fixed to the cylinder bush 32, and the upper piston 2 (lower part), the lower piston 3, the upper valve member 5, the upper ball valve 34, etc. are disposed in the internal space, and the next release target A cylinder for storing the contents,
35a is formed in a conical surface on the inner peripheral surface portion on the lower end side of the cylinder, and has a first ring taper-shaped receiving portion (forward / inverted shared valve seat) that exhibits a valve action with the upper ball valve 34,
35b is an annular flange that is formed on the upper outer peripheral surface of the cylinder and is fitted to a lower part of the outer end surface of the flange 32a of the cylinder bush 32;
35c is an annular convex portion formed on the upper surface of the annular flange 35b and exhibiting a fitting action with the flange 32a of the cylinder bush 32,
35d is an annular step portion for receiving a coil spring formed in the circumferential direction of the inner peripheral surface directly above the annular tapered receiving portion 35a;
35e is a cylindrical portion formed on the lower end side of the cylinder for fitting a flow path defining upper bush 36, which will be described later, to the inner peripheral surface portion;
35f is formed in a cylinder circumferential surface substantially immediately below the annular seal member 11, and is provided with an outside air introduction hole for preventing decompression of the accommodation space area A due to discharge of contents to the external space area,
35g is an intermediate annular step for venting (priming),
Respectively.

Also,
36 is fitted to the lower end side cylindrical portion 35e of the cylinder 35 to set a common upper passage for contents to the storage space area B at the time of erecting and inversion, and an inflow passage of contents at the time of inversion use. Upper bush for channel definition,
36a is attached to the lower end side cylindrical portion 35e in a fitted state, and acts as a downstream portion of the common upper passage,
36b is a concave portion that acts as an upstream portion of the common upper passage in an inverted L-shaped longitudinal section that follows the upstream side of the upper inner cylindrical portion 36a;
36c consists of a vertically grooved portion on the outer peripheral surface and a reverse L-shaped longitudinal section on the downstream side, and a penetrating portion that acts as an inflow passage for the contents during the inverted use,
36d is a lower end side cylindrical portion formed in the lower opening of the through portion 36c,
36e is a second annular taper-shaped receiving portion (for inversion use) that is formed in the shape of an inverted conical surface in the opening inner peripheral surface portion of the lower end side cylindrical portion 36d and exhibits a valve action with an intermediate ball valve 38 to be described later. Upper valve seat),
Respectively.

Also,
37 is fitted into the lower end side tubular portion 36d of the upper bush 36 for defining the flow path, and the common lower passage and the passage of the individual contents on the upstream side thereof are connected to the common upper passage at the time of upright and inverted. A cylindrical bush for defining the flow path,
37a is a longitudinal groove-shaped portion formed in the vertical direction of the outer peripheral surface of the flow path defining lower bush and acting as the common lower passage,
37b is an upper cylindrical portion that acts as a content passage portion following the through portion 36c of the upper bush 36 for flow path definition when inverted,
37c is a conical surface formed on the inner peripheral surface portion on the lower end side of the upper cylindrical portion 37b, and has a third ring taper-shaped receiving portion (valve for upright) that exhibits a valve action with an intermediate ball valve 38 to be described later. seat)
37d is a lower cylindrical portion that acts as a content inflow portion during upright use,
Reference numeral 37e denotes a fourth annular taper-shaped receiving portion (inverted state) that is formed in an inverted conical surface on the upper end side inner peripheral surface portion of the lower cylindrical portion 37d and exhibits a valve action with the lower ball valve 39 described later. For lower valve seat)
37f is formed in a plurality of substantially boundary portions of the cylindrical third and fourth annular tapered receiving portions 37c and 37e, and communicates the inside and the outside of the flow path defining lower bush b, that is, the upper cylindrical portion 37b and A hole that communicates each of the lower cylindrical portion 37d with the longitudinal groove portion 37a, the concave portion 36b of the upper flow passage defining upper bush 36, and the upper inner cylindrical portion 36a;
Respectively.

Also,
38 is an intermediate ball valve (upright valve body) that exhibits a valve action with the third annular tapered receiving portion 37c of the flow path defining lower bush 37;
39 is a lower ball valve (inverted valve body) that exhibits a valve action with the fourth annular tapered receiving portion 37e of the flow path defining lower bush 37;
Respectively.

Also,
40 is fitted to the outer peripheral surface of the lower bush 37 for flow path definition (lower cylindrical portion 37d), and the lower portion of the cylinder 35, the upper bush 36 for flow path definition, the lower bush for flow path definition inside Cylinder cover containing bush 37, upper ball valve 34, intermediate ball valve 38, lower ball valve 39, etc.
40a is formed in the vertical direction of the inner peripheral surface of the upper end side of the cylinder cover, and each has a plurality of longitudinal groove-like portions that act as contents inflow portions,
40b is an annular step formed on the lower inner peripheral surface of the cylinder cover and abutting the lower end surface of the flow path defining lower bush 37;
A plurality of cylinders 40c are formed on the inner peripheral surface of the cylinder cover immediately below the annular step 40b, hold the lower ball valve 39 when used upright, and the contents pass through the so-called gaps adjacent to each other. Orientation rib-shaped part,
40d is a bottom cylindrical portion to which the suction pipe 24 is attached,
Respectively.

Also,
41 holds a cylinder 35 and a cylinder cover 40 incorporating the respective components from the uppermost operation button 31 to the lowermost suction pipe 24, and the annular seal member 11. In this holding state, it is a pump mechanism unit. A cylindrical screw cap,
41a is an inner screw portion formed on the inner surface of the lower opening side of the screw cap,
41b is formed on the upper portion of the screw cap, and an annular upright portion that guides the outer cylindrical portion of the operation button 31 during the content discharge operation,
Respectively.

  Here, the operation button 31, cylinder bush 32, cylinder 35, flow path defining upper bush 36, flow path defining lower bush 37, cylinder cover 40 and screw cap 41 are nylon, polyacetal, polyethylene, polypropylene, polyethylene terephthalate, poly It is made of synthetic resin such as butylene terephthalate, NBR, neoprene, butyl rubber.

  The upper ball valve 34, the intermediate ball valve 38, and the lower ball valve 39 are made of synthetic resin or metal. The annular seal member 33 is made of synthetic resin or rubber.

6 to 8 is different from that of FIGS. 1 to 5 in that the pump mechanism for discharging the contents of the upside-down specification in FIG.
(81) For defining the flow path as a component for setting the content inflow path to the storage space area B (see FIGS. 7 and 8) when the content release operation is canceled in each of the upright use and the inverted use The upper bush 36, the lower bush 37 for flow path definition, the intermediate ball valve 38, the lower ball valve 39, the cylinder cover 40, etc. are provided.
(82) The operation button 31 includes a top surface portion as a pressing operation portion and a nozzle 31b for forward discharge,
(83) The cylinder bush 32 engages and fixes the annular seal member 33 to the ceiling surface,
(84) The cylinder 35 includes an annular flange 35b that fits into the cylinder bush 32,
(85) The container body 23 includes a fixed bottom surface portion, and the inflow opening of the suction pipe 24 is located at the outer peripheral end portion thereof.
And so on.

  The operation of releasing the contents of the storage space area B from the nozzle 31b to the external space based on the pressing operation of the operation button 31 in each of the upright use and the inverted use is the same as that in FIGS.

  Of course, the path through which the contents of the storage space area A of the container main body 23 flow into the storage space area B with the release of the push-down operation is different from that of FIGS.

  As shown by the arrow in FIG. 7, the content inflow path from the accommodation space area A to the storage space area B in the upright state is “groove shape between the suction pipe 24 and the inward rib-shaped portion 40 c adjacent to each other. Portion (cylinder cover 40) -hole portion 37f-vertical groove portion 37a-concave portion 36b ".

  At this time, the downstream valve is closed, the upstream valve (upper ball valve 34) is opened, and the intermediate ball valve 38 is in contact with the ring tapered receiving portion 37c of the flow path defining lower bush 37.

  Further, the content inflow path from the accommodation space area A to the storage space area B in the inverted state is “the longitudinal groove 40a of the cylinder cover 40—the upper bush 36 for channel definition” as shown by the arrow in FIG. Through portion 36c-lower end cylindrical portion 36d of flow path defining upper bush 36-upper internal space of passage defining lower bush 37-hole portion 37f-vertical groove portion 37a-concave portion 36b ".

  At this time, the downstream valve is closed, the upstream valve (upper ball valve 34) is opened, and the intermediate ball valve 38 is separated from the third annular tapered receiving portion 37c of the lower bush 37 for flow path definition by the content pressure, The ball valve 39 is in contact with the fourth annular tapered receiving portion 37e of the lower bush 37 for flow path definition.

  In the contents inflow path to the storage space area B indicated by the arrows in FIGS. 7 and 8, the “hole portion 37 f -vertical groove portion 37 a -concave portion 36 b” up to the cylinder 35 on the downstream side It can be said that the portion is a shared passage that operates in both an upright state and an inverted state.

  The “suction pipe 24—the groove portion between the adjacent inward rib-like portions 40c (cylinder cover 40)” on the upstream side of the common passage serves as an exclusive inflow passage to the storage space B (see FIG. 7).

  Similarly, on the upstream side, “the longitudinal groove 40a of the cylinder cover 40—the through portion 36c of the upper bush 36 for flow path definition—the lower cylindrical portion 36d of the upper bush 36 for flow path definition—the lower bush for flow path definition. The “upper inner space 37” serves as an inflow passage dedicated to the storage space area B (see FIG. 8).

So-called pump unit before mounting on the container body 23

(Upper piston 2, lower piston 3, upper valve member 5, upper coil spring 9, annular seal member 11, lower coil spring 22, cylinder bush 32, annular seal member 33, upper ball valve 34, cylinder 35, flow path definition The assembly procedure of the upper bush 36 for use, the lower bush 37 for defining the flow path, the intermediate ball valve 38, the lower ball valve 39, the cylinder cover 40, and the screw cap 41) is, for example, as follows.

(91) The upper valve member 5 and the upper coil spring 9 are sequentially passed from above the lower piston 3 and then attached to the upper piston 2 to form a piston unit.
(92) From the upper opening of the cylinder 35, the upper ball valve 34 is placed on the ring-shaped tapered receiving portion 35a, and the lower coil spring 22 and the piston unit are sequentially inserted,
(93) A cylinder bush 32 with an annular seal member 33 attached thereto is passed through the piston unit and fitted over the upper opening of the cylinder 35,
(94) Pass the cylinder bush 32 through the center hole of the screw cap 41 and attach the screw cap to the cylinder 35.
(95) Attach the annular seal member 11 from below the cylinder 35 so as to contact the annular flange 35b,
(96) Next, the flow path defining lower bush 37 and the flow path defining upper bush 36, in which the intermediate ball valve 38 is placed, are fitted to the ring tapered receiving portion 37c, and this is fitted to the inward rib-shaped portion 40c. The cylinder cover 40 on which the lower ball valve 39 is placed is inserted and fitted from above and integrated, and this is attached to the lower end side cylindrical portion 35e of the cylinder 35.

  Examples of the container contents include various properties such as liquid, foam (foam), paste, gel, and powder.

  Examples of pump-type products to which the present invention is applied include nasal sprays, cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair restorers, cosmetics, Shaving foam, foods, droplets (such as vitamins), pharmaceuticals, quasi drugs, paints, horticultural agents, repellents (insecticides), cleaners, deodorants, laundry glue, urethane foam, fire extinguishers, There are various applications such as adhesives and lubricants.

  As the contents stored in the container body, various forms such as liquid, cream and gel are used. Ingredients blended in the contents are, for example, powders, oil ingredients, alcohols, surfactants, 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: Operation button 1a: A pair of finger-hanging operation portions 1b: Upper opening sheath-like portion 1c: Lower opening sheath-like portion 1d: Columnar portion 1e: Output hole portion 2: Upper piston 2a: Upper ring convex portion 2b: A plurality of inner portions Orientation longitudinal rib-shaped portion 3: cylindrical lower piston 3a: upward annular step portion 3b: downward annular step portion 3c: plural longitudinal groove portions 4: annular cylinder bush 4a: annular taper surface 5: downwardly expanding cylindrical shape Upper valve member (downstream valve, discharge valve)
5a: Upper valve body 5b: Small diameter annular step portion 5c: Large diameter annular step portion 5d: Reverse skirt portion 5e: Skirt portion 6: Ball valve (upstream valve, suction valve),
7: Cylinder 7a: annular receiving part (lower valve seat)
7b: ring-shaped convex part 7c: annular flange part 7d: intermediate annular step part 8: columnar member (space adjusting action part)
8a: Solid or hollow cylindrical portion 8b: concave portion 8c: bottom surface 8d: cylindrical portion 8e: C-shaped planar step 8f: three vertical grooves 8g: elastic piece 8h for ball valve presser : Inner peripheral surface 8j: Peripheral surface opening 9: Upper coil spring
10: Lower coil spring
11: Annular seal member
12: Screw cap
12a: Inner screw part
12b: Annular concave part
13: Container body
13a: Upper opening side cylindrical part (neck part)
13b: Outside screw part
13c: sheath-shaped bottom lid
13d: Hole for air inflow
13e: Inner ring upright
13f: Movable bottom plate
13g: Movable bottom plate reverse skirt
13h: Movable bottom plate skirt
13j: Bottom step
13k: Ceiling adjustment member A: Storage space area for contents B: Storage space area for contents to be released next time

(Used only in Fig. 5)
21: Cylinder
21a: annular receiving part (lower valve seat)
21b: Ring convex part
21c: Ring-shaped part
21d: annular step
21e: Lower end side cylindrical portion
21f: Outside air introduction hole
21g: Intermediate annular step
22: Lower coil spring
23: Container body
23a: Upper opening side cylindrical part (neck part)
23b: Outside screw part
24: Suction pipe

(Used only in FIGS. 6-8)
31: Operation buttons
31a: Content passage section
31b: Nozzle
32: Cylinder bush
32a: bowl-shaped part
33: Annular seal member
34: Upper ball valve
35: Cylinder
35a: 1st ring taper-shaped receiving part (forward-inverted shared valve seat)
35b: Annular collar
35c: Ring convex part
35d: annular step
35e: bottom cylindrical portion
35f: Outside air introduction hole
35g: Intermediate annular step
36: Upper bush for channel definition,
36a: Upper inner cylindrical part
36b: concave portion
36c: penetration
36d: Lower end side cylindrical part
36e: 2nd ring taper-shaped receiving part (upper valve seat for inversion)
37: Lower bush for cylindrical flow path definition
37a: Longitudinal groove
37b: Upper cylindrical part
37c: Third ring taper-shaped receiving part (upright valve seat)
37d: Lower cylindrical part
37e: Fourth ring taper-shaped receiving portion (lower valve seat for inversion)
37f: Hole
38: Intermediate ball valve (upright valve body)
39: Lower ball valve (inverted valve body)
40: Cylinder cover
40a: a plurality of longitudinal groove portions
40b: annular step
40c: Inward rib-shaped part
40d: Lower end side cylindrical portion
41: Screw cap
41a: Inner screw part
41b: annular upright

Claims (5)

A downstream valve in which the contents stored in the storage space area between the upstream valve and the downstream valve of the inner cylinder of the container body are moved from the closed state to the open state by the release operation of the operation button in the external space. In the pump mechanism for discharging the contents discharged through
The valve body of the downstream valve is
A valve member that moves between the closed position and the open position, and is biased by an elastic member toward the closed position;
A pump mechanism for discharging contents. The elastic member is
Arranged between the valve member and a piston member that defines a valve seat of the downstream valve and a content discharge passage on the downstream side of the valve seat and interlocks with the operation button;
The content discharge pump mechanism according to claim 1. The operation buttons are
It is a vertical sliding type and has at least a pair of finger-hanging operation parts,
The container body is
It has a movable bottom plate with airless pump specifications.
The content discharge pump mechanism according to claim 1 or 2, wherein On the upstream side of the upstream valve,
It is equipped with a flow path setting mechanism for selectively setting the content flow path from the inside of the container body to the upstream valve at the time of each use upside down.
The content discharge pump mechanism according to claim 1 or 2, wherein A pump mechanism for discharging contents according to any one of claims 1 to 4, and the contents stored in the container body,
This is a pump-type product.

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