JP6679288B2 - Contents release mechanism and aerosol type product equipped with this contents release mechanism - Google Patents

Description

The present invention provides a short-moving aerosol operation with the movement of the discharge operation portion with respect to the container main body containing the contents and the gas for injection, and the upstream valve and the downstream valve in the pressure reduction state of the injection gas. The invention relates to a content discharge mechanism capable of individually performing a pumping operation based on a long movement.

In particular, the contents passage region is provided with an end valve action part that is responsive to the pressure of the injection gas of the aerosol operation and the internal pressure of the storage space area between the upstream valve and the downstream valve of the pump operation. Regarding the release mechanism.

  When the pressure of the injection gas in the aerosol operation drops due to misuse etc., this end valve action part is set to the closed state, so to speak, forcibly ending the aerosol operation up to that point, and during normal aerosol operation and pump operation. Is set to the open state by the internal pressure.

Upon recognizing the forced termination of the aerosol operation, the user can switch the usage mode of the content discharge mechanism thereafter from the aerosol mode of the short movement setting of the discharge operation unit to the pump operation of the long movement setting.

  In this specification, the injection hole portion side of the nozzle is referred to as “front”, and the arm-like portion side 180 degrees opposite to that on the horizontal plane is referred to as “rear”. The left side of FIGS. 1 to 6 is “front” and the right side is “rear”.

  In addition, the vertical direction of each drawing is referred to as “vertical”, and an arbitrary direction such as a horizontal plane orthogonal to the vertical direction is referred to as “horizontal” and “left and right”, respectively, as necessary.

  Conventionally, a short-moving aerosol operation based on the injection gas and a long-moving pump operation based on the upstream valve and the downstream valve after the pressure of the injection gas is reduced can be individually executed according to the movement mode of the discharge operation unit. A content release mechanism has already been proposed (see Patent Document 1).

  In the case of this content discharge mechanism, the user switches from the aerosol operation mode to the pump operation mode after visually confirming that the pressure of the gas for injection has dropped and the content discharge state has deteriorated, so to speak. .

JP, 2014-91527, A

  Such switching of the conventional aerosol operation based on the injection gas and the pump operation after the pressure reduction of the injection gas to the pump operation mode in the content release mechanism is performed exclusively in the content release state. Depends on the user's visual results, etc.

  Therefore, the user may continue to use the aerosol operation as it is even after the pressure of the gas for injection is lowered, unconsciously and due to the troublesome switching operation.

  That is, the problem is that the original switching to the pump operation in the state where the pressure of the injection gas is lowered in the aerosol operation is not sufficiently performed as a result, and the convenience of effective use of the pump operation is reduced. was there.

  Therefore, in the present invention, the contents passage of the contents discharge mechanism responds to the pressure of the gas for injection, and when the pressure decreases, the contents passage is set to the closed state and contents to the external space area are set. A termination valve is provided to stop the discharge operation.

  In other words, the closing operation of this end valve when the pressure of the injection gas drops due to misuse, etc., causes the content release state to the external space area until then to be forcibly terminated, and the user is suddenly released this content. You can easily and surely recognize the forced termination state such as disappearance.

  By forcibly ending the content discharge state when the pressure of the injection gas drops, the timing of switching from the aerosol operation mode to the pump operation mode is optimized, and the convenience of the content discharge mechanism with this switching function is further enhanced. The purpose is to achieve

The present invention solves the above problems as follows.
(1) content and its container accommodating the injection gas body (such as a container body 12 to be described later) against with the movement of the release operation portion (for example below the trigger lever 1), a short stroke of a short movement (e.g. below d1 ), And a long movement (for example, a long stroke described below) based on the associated operation of the upstream valve (for example, a ball valve 10 described below) and the downstream valve (for example, a downstream valve 8 described below) in the pressure reduction state of the injection gas. In the content discharge mechanism capable of individually performing the pump operation of d2),
A content passage area (for example, an L-shaped passage portion 2a or a linear passage portion 2g described below) that continues from the upstream valve to a content injection hole portion (for example, an injection hole portion 2n described below) to the external space area;
An end valve operating portion which is disposed in the content passage area in a form that responds to the pressure of the injection gas, is set to an open state during the aerosol operation, and is set to a closed state during the pressure reduction state. (For example, an inflow port 2k and an end valve 3 described later),
An elastic member (for example, a vertical coil spring 6j described later) for setting the downstream valve to a closed state in a stationary mode in which the discharge operation unit is not operated ,
The end valve acting portion is
By setting the closed state in the pressure reduced state, the content discharge operation from the content injection hole portion to the external space area is forcibly terminated, and the user is in the pressure reduced state at the time of the aerosol operation. To recognize
At the time of the pump operation, the open state is set as the internal pressure of the storage space region (for example, a storage space region S described later) between the upstream valve and the downstream valve increases.
The configuration mode is used.
(2) In (1) above,
The end valve acting portion is
In the content passage area, it is arranged in a flow passage portion continuing from the downstream valve to the downstream side thereof,
The configuration mode is used.

  The subject matter of the present invention is a content discharge mechanism having such a configuration and an aerosol-type product provided with this content discharge mechanism.

  By adopting the above configuration, the present invention can optimize the switching timing from the aerosol operation mode to the pump operation mode, and can further improve the convenience of the content discharge mechanism having this switching function. .

It is explanatory drawing which shows the stationary mode (initial state) of a content discharge mechanism. It is explanatory drawing which expanded the content passage area | region from the stem of FIG. 1 to a nozzle, and the part in it, such as a termination valve. It is explanatory drawing which shows the aerosol operation mode of the content discharge mechanism of FIG. It is explanatory drawing which shows the aerosol operation completion | finish state in which the pressure of the injection gas fell and the end valve closed in the aerosol operation mode of FIG. It is explanatory drawing which shows the pump operation mode which rotated the trigger lever by the long stroke d2 after completion | finish of the aerosol operation of FIG. FIG. 6 is an explanatory diagram showing a return mode to the initial state of FIG. 1 after releasing the turning operation of the trigger lever of FIG. 5.

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

  The content discharging mechanism of the present invention is premised on a hybrid operation in which, in addition to the original aerosol operation, a pump operation when the injection gas pressure drops can be executed.

  In principle, the components with reference numbers with alphabets (for example, the opening 1a) used in the respective drawings are shown to be a part of the components (for example, the trigger lever 1) corresponding to the numerical parts of the reference numbers.

1 to 6,
Reference numeral 1 is a trigger lever as a rotary discharge operation unit for discharging contents,
An opening 1a is formed in the upper part of the front face of the trigger lever and the front part of the top face following the trigger lever to allow the nozzle 2m (passage member 2) described later to move up and down.
A pair of holes 1b are formed on both sides of the rear side of the trigger lever and serve as a pivot center of the trigger lever by an engaging action with a shaft portion 4b of an arm-shaped portion 4a, which will be described later.
1c is formed on both side surfaces in the middle in the front-rear direction of the trigger lever, and a pair of downwardly widening downwards which downwardly move the passage member 2 by a pressing action on a cylindrical portion 2f described later based on the turning operation of the trigger lever 1. For example, an arc-shaped driving curved surface,
1d is a rib-shaped portion provided in such a manner as to come into contact with the upper end side of the laterally curved plate-shaped portion 5b on the rear side of the erroneous operation preventing member 5 when the erroneous operation preventing member 5 is in the lock position,
Are shown respectively.

Also,
Reference numeral 2 denotes an L-shaped tubular passage member that moves downward to the operation mode position by rotating the trigger lever 1.
Reference numeral 2a denotes an inflow side of the passage member 2, and a cylindrical L-shaped passage portion in which an inner peripheral surface on a lower end side is fitted to an outer peripheral surface on an upper end side of a stem upper portion 6a described later,
2b is an upstream vertical portion of the L-shaped passage 2a,
2c is a lateral portion on the downstream side of the L-shaped passage 2a,
2d is an upper horizontal hole portion for passing contents, which is formed in a boundary area between the upstream side vertical portion 2b and the downstream side horizontal portion 2c,
2e is an annular flat surface portion formed around the upper lateral hole portion 2d,
2f is a well-known cylindrical portion that is formed on the outer peripheral surface of the passage member and that moves the passage member 2 downward by cooperation with the driving curved surface 1c accompanying the turning operation of the trigger lever 1.
2g constitutes the outflow side of the passage member 2, and the cylindrical inner side passage portion of which the rear side inner peripheral surface is fitted to the outer peripheral surface of the downstream side lateral portion 2c is a cylindrical linear passage portion,
Reference numeral 2h denotes an inner cylindrical portion for passing contents, which is continuously formed from a front inner peripheral surface of the linear passage portion 2g in a manner of an inner and outer double cylindrical portion with the front inner peripheral surface,
2j is a horizontal annular space with a bottom in the horizontal direction set between the inner and outer double cylindrical parts,
2k is an inflow port of the content to be discharged as an end valve action part, which is formed by a valve action part of an annular taper surface which is formed on the rear end side of the inner tubular part 2h and has a rearward-spreading direction.
The nozzle 2m is attached to the lateral annular space 2j of the linear passage portion 2g in a fitted state and has a communication path with the inner cylindrical portion 2h,
2n is an injection hole portion for discharging the contents set in the nozzle 2m,
Are shown respectively.

Also,
3 is disposed in the internal space region from the downstream lateral portion 2c of the passage member 2 to the downstream inlet 2k thereof, and the pressure of the gas for injection of the container body 12 described below is substantially up to the operating limit of the aerosol operating mode. When it goes down, the inlet 2k is shifted from the open state to the closed state, that is, the aerosol operation mode is automatically terminated as it is while the operation state of the trigger lever 1 remains the same. Termination valve as a lever-free termination valve action part,
3a is a lateral center body formed in the longitudinal and lateral directions passing through the longitudinal section center of the end valve 3,
3b is formed on the outer peripheral surface of the lateral center body portion 3a in the lateral direction, and has a total of three lateral groove portions for passing contents,
Reference numeral 3c denotes a valve action portion formed in the central portion of the front end of the lateral center body portion 3a, and the valve spread portion 3c is shifted to a contact / separation position facing the inflow port 2k depending on the pressure of the injection gas. An annular taper surface due to positive valve action,
3d is a rearward-facing skirt-shaped portion which is continuously formed on the front outer side portion of the lateral center body portion 3a, and which closely seals the front inner peripheral surface of the linear passage portion 2g and exhibits a sealing action,
A forward skirt-shaped portion 3e is formed continuously on the rear outer side portion of the lateral center body portion 3a and closely contacts with the inner peripheral surface of the downstream lateral portion 2c of the L-shaped passage portion 2a to exhibit a sealing action.
3f is an annular step portion formed on the rear end side of the lateral center body portion 3a so as to include the lateral groove portions 3b.
3g is disposed between the annular stepped portion 3f and the annular flat surface portion 2e of the L-shaped passage portion 2a, and urges the entire end valve 3 in the forward direction, so that the stationary mode or the aerosol operation mode is generated. A lateral coil spring for setting the inlet 2k of the inner tubular portion 2h to the closed state by the end valve 3 when the pressure of the injection gas is reduced by
Are shown respectively.

Also,
Reference numeral 4 is a cover body that is integrated with a housing 7 described later to guide and protect the passage member 2 and a stem upper portion 6a described later that is disposed inside itself, and that acts as a mounting base portion of the trigger lever 1.
Reference numeral 4a denotes an arm-shaped portion that extends rearward from a small diameter portion on the upper end side of the cover body 4,
Reference numeral 4b denotes a pair of shaft portions formed on the outer surface of the upper end of the arm-shaped portion 4a and used in the hole portion 1b of the trigger lever 1 and acting as a rotation center axis of the trigger lever 1,
Reference numeral 4c denotes a lower end side of the arm-shaped portion 4a, which is a double-cylindrical portion having a guiding action for vertical movement of a stem upper portion 6a, which will be described later.
4d is a large-diameter tubular portion with an annular ceiling portion continuously formed from the outer lower end portion of the double tubular portion 4c,
4e is an inner upper end side of the large-diameter cylindrical portion 4d and is composed of a concave side surface, and a ring ceiling portion for holding a ring collar-shaped portion 7a described later,
4f is a spiral-shaped inner peripheral surface threaded portion which is continuously formed on the inner peripheral surface of the large-diameter cylindrical portion 4d and is screwed with an outer peripheral surface threaded portion 12b of the container body 12 described later,
Are shown respectively.

Also,
5 is attached to the upper small-diameter portion of the cover body 4 so as to be rotatable without vertically moving, and prevents downward movement of the passage member 2 in accordance with the rotational position, that is, the operation mode setting operation is disabled. Known misoperation prevention member,
5a is a knob for rotating the erroneous operation preventing member 5,
5b is a laterally curved plate-like portion provided on the side opposite to the knob 5a,
Are shown respectively.

Also,
6 is attached to the passage member 2 and exhibits a valve action with a downstream valve 8 described later by interlocking with the trigger lever 1, and a stem (stem upper portion 6a + stem lower portion 6f) through which the contents pass,
6a is an upper portion of a cylindrical stem fitted in the lower end side opening of the passage member 2,
6b is a small-diameter passage portion as a contents passage formed in the upper end portion of the stem upper portion 6a,
Reference numeral 6c denotes a plurality of L-shaped groove portions as contents passages formed from the lower end portion of the small-diameter passage portion 6b in the diameter / vertical direction of the inner peripheral surface of the medium diameter therebelow.
6d is a large-diameter inner peripheral surface continuously formed below the L-shaped groove portion 6c,
6e is formed on the outer peripheral surface on the front side of the upper end portion of the large-diameter inner peripheral surface 6d, and is set in a downwardly widening and upward downward lower annular taper surface which is set in a state of being separated and opposed to an annular taper surface 9a for a stem of a stopper bush 9 described later,
6f is a sheath-shaped stem lower part fitted in a relative convex portion in which the groove-shaped portion is not formed in the setting range of the L-shaped groove-shaped portion 6c,
6g is formed on the upper surface portion of the lower end side flange-shaped portion of the lower stem portion 6f, and has an upward annular concave portion that exhibits a valve action with a downstream valve 8 to be described later,
6h is a downward receiving concave portion formed on the bottom surface of the stem lower portion 6f to hold the upper end side of a vertical coil spring 6j described later,
6j is disposed between a housing bottom surface portion above a ball valve 10 to be described later and a downward receiving concave portion 6h of the stem lower portion 6f, and urges the stem 6 and the passage member 2 integrated therewith upward. Vertical coil spring as elastic member,
Are shown respectively.

Also,
Reference numeral 7 denotes a cylindrical housing in which the stem 6, the vertical coil spring 6j, a downstream valve 8, which will be described later, a stopper bush 9 and a ball valve 10 are housed and arranged in the internal space thereof.
Reference numeral 7a denotes an annular brim-shaped portion formed at the upper end portion of the housing 7 and fitted and held by an annular ceiling portion 4e formed of a concave side surface on the upper end side of the large-diameter cylindrical portion 4d,
Reference numeral 7b denotes an annular packing for sealing operation, which is engaged with and held by the upper end portion of the outer peripheral surface of the housing 7 in a state of being in close contact with the lower surface of the annular collar portion 7a,
7c is formed on the upper peripheral surface of the housing 7, and has a lower lateral hole portion for taking in outside air for preventing depressurization inside the container body when the pump is operating,
7f is formed on the inner peripheral surface of the lower end side of the housing 7, and is an upward valve valve lower annular taper surface that widens upward as an upstream valve valve portion for receiving a ball valve 10 described later,
Are shown respectively.

Also,
Reference numeral 8 is vertically moved in close contact with the large-diameter inner peripheral surface 6d of the stem upper portion 6a and the upper inner peripheral surface of the housing 7, and exhibits a valve action with the upward ring concave portion 6g of the stem lower portion 6f, and 3, a downstream valve as a valve member that closes the lower lateral hole portion 7c in the stationary mode and the aerosol operation mode of FIG. 4, that is, sets the lower lateral hole portion and the external space region in a non-communication state,
8a sets the top dead center position of the downstream valve 8 by a locking action with a stopper bush 9 which will be described later, and on the inner peripheral surface above the lower lateral hole portion 7c of the housing 7 in the stationary mode and the aerosol operation mode. An upper and outer reverse skirt-shaped portion that closely contacts and is closely contacted with the inner peripheral surface below the lower lateral hole portion 7c in the pump operation mode,
Reference numeral 8b denotes a lower outer skirt-shaped portion which is always in close contact with the inner peripheral surface below the lower lateral hole portion 7c of the housing 7,
8c is an upper inner reverse skirt portion that is in close contact with the large diameter inner peripheral surface 6d of the stem upper portion 6a at all times,
8d is formed continuously below the upper inner inverted skirt-shaped portion 8c, and has an upwardly widening annular valve action portion that exhibits a valve action between the stem lower portion 6f and the upward annular concave portion 6g.
Are shown respectively.

Also,
Reference numeral 9 is a tubular shape that is attached to the upper end portion of the inner peripheral surface of the housing 7 in a fitted state to set the top dead center position of the downstream valve 8 by the locking action with the upper and outer reverse skirt-shaped portions 8a. Stopper bush,
Reference numeral 9a denotes a downwardly widening and downwardly extending stem-shaped annular tapered surface formed on the upper end side of the inner peripheral surface of the stopper bush 9 in a manner to face the lower annular tapered surface 6e of the stem upper portion 6a.
Reference numeral 9b is a lower end surface of the stopper bush 9, and is configured to set the downstream valve 8 to a top dead center position by a locking action with the upper and outer inverted skirt-shaped portions 8a.
Are shown respectively.

Also,
Reference numeral 10 is held by the valve action lower annular tapered surface 7f of the housing 7, and when the total pressure from the lower side to the upper side becomes larger than the total pressure from the upper side to the lower side and its own weight, it is moved upward and opened. Ball valve as an upstream valve,
11 is a tube for inflowing the contents, which is attached to the inner peripheral surface of the lower end side of the housing 7,
Reference numeral 12 denotes a container body in which various contents described below and the gas for injecting the same are stored,
12a is an open tubular portion on the upper end side that is made up of a small diameter portion of the container body,
12b is a spiral-shaped outer peripheral surface threaded portion which is continuously formed on the outer peripheral surface of the opening cylindrical portion 12a and is screwed into the inner peripheral surface threaded portion 4f of the cover body 4,
Are shown respectively.

Also,
S is set between the ball valve 10 of the upstream valve and the downstream valve 8, and the internal space area of the housing 7 into which the contents of the container body 12 flow from this ball valve as the next discharge target at the end of the pump operation. Storage space area as
d1 is the stroke of the trigger lever rotation operation for aerosol operation (see FIG. 4),
d2 is the stroke for turning the trigger lever for pump operation (see Fig. 5),
f1 is the content discharge route to the external space area in the pump operation mode (see FIG. 5),
f2 is a content storage path to the storage space area S at the end stage of the pump operation mode of FIG. 5 (see FIG. 6),
f3 is an outside air inflow path for preventing depressurization to the container body 12 at the end stage of the pump operation mode of FIG. 5 (see FIG. 6),
Are shown respectively.

  Among the above components, the trigger lever 1, the passage member 2, the end valve 3, the cover body 4, the erroneous operation preventing member 5, the stem 6, the downstream valve 8, the stopper bush 9 and the tube 11 are made of plastic, for example, Made of polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, etc.

  The horizontal coil spring 3g, the vertical coil spring 6j, the housing 7, the ball valve 10 and the container body 12 are made of plastic or metal, and the annular packing 7b is made of rubber or plastic.

  The illustrated content discharge mechanism is based on the short-moving aerosol operation based on the injection gas in accordance with the movement mode of the trigger lever 1 and the upstream valve (ball valve) and the downstream valve after the pressure of the injection gas has dropped. It is a discharge mechanism capable of individually performing long-moving pump operation.

  The basic characteristic is that, as shown in (13) below, when the complete discharge state is not ensured by the pressure drop of the injection gas in the original aerosol operation mode of the content discharge mechanism, a part of the content discharge passage ( For example, the termination valve 3 is provided to turn off the passage member 2).

The illustrated content discharging mechanism relates to the ball valve 10, the downstream valve 8 and the end valve 3 which are sequentially arranged in the content flow path from the tube 11 to the injection hole portion 2n,
(11) In the stationary mode in which the trigger lever 1 is not rotated as shown in FIGS. 1 and 2, the ball valve 10, the downstream valve 8 and the end valve 3 are all set to the closed state,
(12) In the stable state of the aerosol operation mode in which the trigger lever 1 is rotated by the short stroke d1 in FIG. 3, the ball valve 10, the downstream valve 8 and the end valve 3 are all set to the open state,
(13) In the unstable state in which the pressure of the injection gas in the aerosol operation mode has decreased in FIG. 4, at least the end valve 3 is set to the closed state,
(14) In the pump operation mode in which the trigger lever 1 is further rotated over the long stroke d2 in FIG. 5, the ball valve 10 is set to the closed state, the downstream valve 8 and the end valve 3 are set to the open state,
(15) In the upward stem returning stage after the end of the pump operation mode in FIG. 6, the ball valve 10 is set to the open state, and the downstream valve 8 and the end valve 3 are set to the closed state.
That is.

  In this way, when the gas pressure for injection drops in the aerosol operation mode of FIG. 3, the end valve 3 closes the inflow port 2k of the inner cylindrical portion 2h by the elastic action of the lateral coil spring 3g, and the injection hole portion 2n up to that point is closed. The state of releasing the contents from is terminated (see FIG. 4).

  The user can clearly recognize the decrease in the pressure of the gas for injection due to the end of the discharge of the contents, that is, the fact that the aerosol operation is unstable.

  Then, thereafter, in order to allow the content to be discharged from the injection hole portion 2n to the external space area, the user may set the trigger lever 1 to the rotation state of the long stroke d2 (see FIG. 5).

  The operation of the downstream valve 8 and the ball valve (upstream valve) 10 in FIG. 5 in which the trigger lever 1 is shifted to the rotational position of the long stroke d2 is the same as that of the known pressure accumulating type pump discharge mechanism.

  That is, the volume of the storage space S decreases due to the downward shift of the stem 6 accompanying the turning operation of the trigger lever 1, and the internal pressure there increases, and the ball valve 10 closes due to this increase in internal pressure, and the downstream valve 8 has an annular shape. The valve action portion 8d is separated from the upward ring concave portion 6g of the stem lower portion 6f.

  At this time, in the end valve 3, the annular taper surface 3c is also separated from the inflow port 2k of the inner cylindrical portion 2h due to the valve action, as in the aerosol operation mode of FIG.

  Due to the shift of the downstream valve 8 and the end valve 3 to the separated state, the contents stored in the storage space area S pass through the downstream valve 8, the stem 6, and the passage member 2 in the pump operation mode, and the injection hole portion of the nozzle 2m. It is released from 2n to the external space area.

  The stationary mode shown in FIGS. 1 and 2, the aerosol operating mode shown in FIGS. 3 and 4, the pump operating mode shown in FIG. 5, and the return mode after pump operating shown in FIG. 6 will be sequentially described.

  FIG. 1 and FIG. 2 in which a part thereof is enlarged show a stationary mode in which the trigger lever 1 remains in its initial position and is not rotated.

In the stationary mode of FIGS. 1 and 2,
(21) The passage member 2, the nozzle 2m and the stem 6 are integrally formed, and the trigger lever 1 and the downstream valve 8 linked to them are set to the uppermost position by the elastic action of the vertical coil spring 6j,
(22) Due to the upward elastic force of the vertical coil spring 6j, the upward annular concave portion 6g of the stem lower portion 6f and the annular valve action portion 8d of the downstream valve 8 come into close contact with each other,
(23) Due to the valve action, the annular taper surface 3c of the end valve 3 which does not receive the pressure of the injection gas due to this close action causes the forward elastic force of the lateral coil spring 3g to cause the inflow port 2k of the inner cylindrical portion 2h. Close to
(24) Ball valve 10 is set to the closed state,
(25) The lower end portion of the stem upper portion 6a is separated from the upper surface annular concave portion of the downstream valve 8 in the upward direction,
(26) The lower lateral hole portion 7c of the housing 7 is closed at its inner side by the downstream valve 8 and does not communicate with the external space area,
Is set to state.

  When the trigger lever 1 in the stationary mode shown in FIGS. 1 and 2 is pulled in the direction of the arrow in FIGS. 3 to 5, the passage member 2 and the stem 6 move the driving curved surface 1c of the trigger lever 1 and the cylindrical portion 2f of the passage member 2. Due to the abutting displacement action of the and, it moves downward while resisting the elastic force of the vertical coil spring 6j.

  Then, when the user stops the pulling operation, the trigger lever 1, the passage member 2 and the stem 6 return to their respective initial state stationary mode positions based on the upward elastic force of the vertical coil spring 6j.

  The illustrated content discharging mechanism includes a known erroneous operation preventing member 5 (for example, Japanese Patent Laid-Open No. 2010-253443) that selectively blocks / permits the turning operation of the trigger lever 1. In the stationary mode shown in FIGS. 1 and 2, the erroneous operation preventing member is set at the lock position for preventing the rotation operation.

  3 to 6 show the aerosol operation mode and the pump operation when the trigger lever 1 is pulled after the knob 5a of the erroneous operation preventing member 5 in the stationary mode of FIG. The mode etc. are shown.

  FIG. 3 shows an aerosol operation mode in which the trigger lever 1 in the unlocked position is moved counterclockwise in the drawing by a stroke d1.

As is well known when shifting from the stationary mode to the aerosol operation mode,
(31) The passage member 2 and the stem 6 integral therewith move downward while resisting the elastic force of the vertical coil spring 6j,
(32) During this movement, the downstream valve 8 stays in the stationary mode position shown in FIGS. 1 and 2 due to the upward pressure action of the injection gas, and the annular valve action portion 8d has the upward ring concave portion 6g of the stem lower portion 6f. , The downstream valve action part changes from the "closed" state until then to the "open" state,
(33) Similarly, the ball valve 10 is upwardly separated from the valve action lower annular taper surface 7f of the housing 7 by the pressure action of the injection gas, and is shifted to the state of being in contact with the lower end portion of the vertical coil spring 6j, The upstream valve action portion also changes from the previously closed state to the open state.

  In addition, in the case of the pulling operation of the aerosol operation, the stroke d1 of the trigger lever 1 is small, and the lower lateral hole portion 7c for taking in the outside air of the housing 7 has the upper and outer reverse skirt-shaped portions 8a and 8a of the downstream valve 8 similar to the stationary mode. It is separated from the external space region by the lower outer skirt-shaped portion 8b.

In addition, the end valve 3 in the aerosol operation mode of FIG.
(41) The front surface side has a wider pressure receiving surface portion than the rear surface side, and receives a large rearward pressure (more than the forward pressure) of the injection gas to resist the elastic force of the lateral coil spring 3g. While retreating,
(42) This retracting action eliminates the close contact with the inflow port 2k up to that point, and has the function of releasing the contents stored in the container body 12 from the injection holes 2n to the external space region by the action of the injection gas. ing.

  In addition, the wide pressure-receiving surface portion on the front surface side of the end valve 3 corresponds to the annular portion of the longitudinal cross section of the rearward-facing skirt-shaped portion 3d excluding the lateral center body portion 3a from the circumferential front end edge, and the narrow pressure-receiving surface portion on the rear surface side is It corresponds to the entire inside of the vertical cross section of the circumferential rear edge of the forward facing skirt portion 3e.

  The total pressure of the injecting gas in the backward direction with respect to the difference area of the longitudinal cross section between the annular portion of the rearward-facing skirt-shaped portion 3d and the entire inside of the forward-facing skirt-shaped portion 3e is determined by the forward elasticity of the lateral coil spring 3g. When the force is overcome, the end valve 3 in the stationary mode position moves backward. The “difference area” is an area whose size is uniquely determined by the shape of the end valve 3.

  In the aerosol operation mode of FIG. 3, the content of the container main body 12 is roughly "tube 11-ball valve 10-reservation space area S-downstream valve 8-L-shaped groove portion 6c-small diameter passage" due to the action of the gas for injection. Portion 6b-L-shaped passage portion 2a-end valve 3-injection hole portion 2n "is discharged to the outside through the passage area.

  FIG. 4 shows an operating state of the end valve 3 when the pressure of the injection gas in the aerosol operation mode of FIG. 3 decreases.

  When the pressure of the gas for injection of the container body 12 decreases due to misuse or repeated use of the content discharge mechanism, the downstream valve 8 and the ball valve 10 cannot be sufficiently pushed up, and the pressure of the gas for injection is reduced. It is not possible to expect a good content discharge operation due to the action.

  When the pressure of the injection gas in the aerosol operation mode of the content discharge mechanism of the present invention decreases, the content passage portion is shut off by the closing action of the end valve 3 with respect to the inflow port 2k, and the space from the injection hole portion 2n to the external space. The release of the contents to the area is completed.

  The user can clearly recognize the decrease in the pressure of the gas for injection due to the end of the discharge of the contents, that is, the fact that the aerosol operation is unstable.

  Here, in the aerosol operation mode of FIG. 3, unlike the above-described initial transition from the stationary mode to the aerosol operation mode, the circumference of the rearward-facing skirt portion 3d is formed on the wide pressure-receiving surface portion of the front end side of the end valve 3. The entire inside of the vertical cross section of the front edge corresponds.

  Due to the decrease in the pressure of the injection gas, the total pressure in the rearward direction with respect to the differential area of the entire vertical cross section of the rearward facing skirt-shaped portion 3d and the forward facing skirt-shaped portion 3e becomes smaller, and the forward elasticity of the lateral coil spring 3g is reduced. When the force is overcome, the end valve 3 is set to the closed state. That is, the aerosol operation mode of FIG. 3 ends.

  FIG. 5 shows a state in which the trigger lever 1 of FIG. 3 is pulled by a stroke d2 larger than the aerosol actuation operation, that is, the pump actuation mode, when sufficient aerosol actuation is not executed due to such a decrease in the injection gas pressure. Shows.

  The trigger lever 1 can be rotated over a wide range of the stroke d2 because the pressure of the injection gas in the container body 12 is lowered.

At the time of shifting to the pump operation mode of FIG. 5, with the downward movement of the stem 6 linked with the pulling operation of the long stroke d2 with respect to the trigger lever 1,
(51) The downstream valve 8 also starts moving downward together with the stem 6 in the closed state,
(52) With this movement, the volume of the storage space area S decreases and the internal pressure there increases, so that the ball valve 10 of the upstream valve is held in the forced closed state, and the downstream valve 8 in the closed state moves upward. It moves up against the stem 6 by receiving pressure,
Further, due to the increase in the internal pressure in the L-shaped passage portion 2a and the like, the end valve 3 retreats until it comes in contact with the front end portion of the downstream side lateral portion 2c, as in the aerosol operation of FIG. Separated from the inlet 2k,
(53) The upwardly moved downstream valve 8 is held in an open state in which the annular concave portion at the center of the upper surface abuts the lower end portion of the stem upper portion 6a and is separated from the upward annular concave portion 6g of the valve action portion of the stem lower portion 6f. Is
(54) The stored contents in the storage space area S in which the internal pressure has increased are "the downstream valve 8 in the open state-L-shaped groove portion 6c-small diameter passage portion 6b-L-shaped passage portion 2a-end valve 3-nozzle. It is discharged from the injection hole 2n of the nozzle 2m to the external space area by the content discharge path f1 of "2m".

  When the content of the storage space area S contains a large amount of gas, the upward movement of the downstream valve 8 in (52) above is likely to be compressed and the internal pressure is gradually increased. The upward biasing force due to the sliding resistance of the above also assists the upstream movement of the downstream valve 8 with respect to the stem 6.

  As described above, in the pump operation mode of FIG. 5, the content stored in the storage space area S flows out to the external space area through the discharge path f1.

  Further, like the normal pump operation, the downstream valve 8 is closed due to the decrease in the internal pressure of the storage space area S accompanying the release of the contents to the external space area. At this time, the end valve 3 is also closed.

  FIG. 6 shows a return mode when the user releases the operation of pulling the trigger lever for operating the pump shown in FIG.

  The downstream valve 8 at the final stage of the pulling operation of the trigger lever 1 in FIG. 5 has an upper outer reverse skirt portion 8a located below the lower lateral hole portion 7c of the housing 7.

When the user releases the trigger lever pulling operation in the pump operation mode of FIG. 5,
(61) The integral structure of the passage member 2, the nozzle 2m, and the stem 6, and the trigger lever 1 and the downstream valve 8 linked to them, are returned to their respective stationary mode positions by the upward elastic action of the vertical coil spring 6j,
(62) With the return to the stationary mode position, the volume of the storage space area S increases and the internal pressure there becomes lower than that in the container body,
(63) Due to this decrease in internal pressure, the ball valve 10 of the upstream valve opens, that is, the ball valve 10 moves upward from the valve action annular taper surface 7f of the housing 7, and the content of the container body 12 accumulates from the tube 11. Flows into the space S through the content storage path f2,
(64) The outside air for preventing the internal decompression of the container body 12 due to the inflow of the contents is supplied to the inside of the container body from the lower lateral hole portion 7c by the outside air inflow path f3.

  The contents that have flown into the storage space area S of the housing 7 in (63) above are the contents to be released to the external space area at the time of the next pump lever pulling operation of the trigger lever.

  The outside air inflow path f3 is roughly defined as "between the outer peripheral surface of the passage member 2 and the inner peripheral surfaces of the erroneous operation preventing member 5 and the double cylindrical portion 4c-the outer peripheral surface of the stem upper portion 6a, the stopper bush 9 and the housing 7. Between the inner peripheral surface-lower lateral hole portion 7c-container body 12 ".

  That is, the outside air inflow path f3 for preventing depressurization of the container body is secured until the downstream valve 8 moves up and closes the lower lateral hole portion 7c.

  The operation of inflowing outside air to prevent depressurization into the inside of the container body is such that when the trigger lever 1 of FIG. On the other hand, it also occurs when the negative pressure is maintained.

Of course, the present invention is not limited to the above embodiments, and for example,
(71) The end valve 3 and the valve mechanism of the inflow port 2k that is opened and closed by the end valve 3 are arranged at an arbitrary position in the content passage portion between the ball valve 10 and the nozzle 2m.
(72) Instead of the trigger lever 1, a pressing type operation unit is used,
(73) The large-diameter cylindrical portion 4d of the cover body 4 and the opening cylindrical portion 12a of the container body 12 are joined by a fitting action rather than the illustrated screwing action.
You may do so.

  Products to which the present invention is applied include 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, nutrition. Supplements (vitamins, etc.) Pharmaceuticals, quasi-drugs, paints, gardening agents, repellents (insecticides), cleaners, deodorants, laundry pastes, urethane foam, fire extinguisher, adhesives, lubricants, etc. There is one.

  The contents to be stored in the container body can be in various forms such as liquid, cream and gel, and the components to be mixed in the contents are, for example, powder, oil component, alcohols, interface, etc. Examples include activators, polymer compounds, active ingredients for each application, and water.

  As the powdery material, metal salt powder, inorganic powder, resin powder or the like is used. For example, talc, kaolin, aluminum hydroxy chloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose and mixtures 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, etc. are used.

  As alcohols, monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol, polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol are used.

  Examples of the surfactant include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as betaine lauryldimethylaminoacetate, and cations such as alkyltrimethylammonium chloride. A hydrophilic surfactant or the like is used.

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, etc. are used.

  As an active ingredient according to each application, antiphlogistic analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, pest repellents such as hillethroid and diethyltoluamide, antiperspirants such as zinc oxide, Cooling agents such as camphor and menthol, anti-asthma agents 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 extinguishing agents such as ammonium and sodium hydrogen carbonate.

  Further, in addition to the above contents, a suspending agent, an ultraviolet absorber, an emulsifier, a moisturizing agent, an antioxidant, a sequestering agent, etc. can be used.

  As the injection gas in the aerosol type product, compressed gas such as carbon dioxide gas, nitrogen gas, compressed air, oxygen gas, noble gas or a mixed gas thereof, or liquefied gas such as liquefied petroleum gas, dimethyl ether or fluorocarbon is used.

1: Trigger lever 1a: Opening 1b: A pair of holes 1c: Driving curved surface 1d: Rib-shaped part

2: Passage member (L-shaped passage portion 2a + straight passage portion 2g + nozzle 2m)
2a: L-shaped passage portion 2b: Upstream vertical portion 2c of L-shaped passage portion 2c: Downstream lateral portion 2d of L-shaped passage portion: Upper horizontal hole portion 2e: Annular flat portion 2f: Cylindrical portion 2g: Straight line -Shaped passage portion 2h: inner cylindrical portion 2j: lateral annular space area 2k: inlet 2m: nozzle 2n: injection hole portion

3: end valve 3a: lateral center body 3b: lateral groove portion 3c: annular taper surface 3d due to valve action: backward skirt portion 3e: forward skirt portion 3f: annular step portion 3g: lateral coil spring

4: Cover body 4a: Arm-shaped part 4b: Shaft part 4c: Double cylindrical part 4d: Large diameter cylindrical part 4e: Ring ceiling part 4f: Inner peripheral surface screw part

5: Misoperation prevention member 5a: Knob 5b: Lateral curved plate-shaped part

6: Stem (stem upper part 6a + stem lower part 6f)
6a: upper part of stem 6b: small diameter passage part 6c: L-shaped groove part 6d: large diameter inner peripheral surface 6e: lower annular taper surface 6f: lower part of stem 6g: upward ring concave part 6h: downward receiving concave part 6j: vertical coil spring

7: Housing 7a: Annular flange 7b: Annular packing 7c: Lower lateral hole 7f: Valve action lower annular taper surface

8: Downstream valve 8a: Upper outer reverse skirt portion 8b: Lower outer skirt portion 8c: Upper inner reverse skirt portion 8d: Annular valve action portion

9: Stopper bush 9a: Stem annular taper surface 9b: Downstream valve annular taper surface

10: Ball valve
11: Tube
12: Container body
12a: Open tubular part
12b: External thread

S: Storage space area d1: Short stroke of trigger lever rotation operation (see FIG. 4)
d2: Long stroke for turning the trigger lever (see Fig. 5)
f1: Content release route (see FIG. 5)
f2: Content storage route (see FIG. 6)
f3: Outside air inflow route (see FIG. 6)

Claims (3)

Contents and with the movement of the release operation portion against the container body accommodating the injection gas, and aerosols operation of the short movement, based on the relative motion of the upstream valve and the downstream valve pressure drop state of the injection gas length In the content discharge mechanism that can individually perform the pumping operation of movement,
A content passage area continuing from the upstream valve to the content injection hole portion to the external space area,
An end valve operating portion which is disposed in the content passage area in a form that responds to the pressure of the injection gas, is set to an open state during the aerosol operation, and is set to a closed state during the pressure reduction state. When,
An elastic member for setting the downstream valve to a closed state when in a stationary mode in which the discharge operating portion is not operated ,
The end valve acting portion is
By setting the closed state in the pressure reduced state, the content discharge operation from the content injection hole portion to the external space area is forcibly terminated, and the user is in the pressure reduced state at the time of the aerosol operation. To recognize
At the time of the pump operation, it is set to an open state as the internal pressure of the storage space area between the upstream valve and the downstream valve increases.
A content release mechanism characterized by the above. The end valve acting portion is
In the content passage area, it is arranged in a flow passage portion continuing from the downstream valve to the downstream side thereof,
The content discharging mechanism according to claim 1, wherein: The content discharge mechanism according to claim 1 or 2 is provided, and the injection gas and the content are contained in the container body.
Aerosol type product characterized by

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