JP4702831B2 - Tip-stop mechanism, pump-type product with tip-stop mechanism, and aerosol-type product with tip-stop mechanism - Google Patents

Description

  The present invention closes the discharge port at the end of the discharge operation of the contents of the container main body so that the content remaining in the passage area nearby does not leak out from the discharge port toward the external space, that is, the pump type The present invention relates to a tip stop mechanism that prevents sagging (solidification) in a container and outer draw in an aerosol-type container, and a pump-type product and an aerosol-type product having this tip stop mechanism.

  In this specification, the side of the outlet of the container contents is referred to as “front”, and the opposite side is referred to as “rear”. That is, the left direction in FIG. 1 is “front” and the right direction is “rear”.

  In addition, the “pump type” used in the present specification means that the volume of the content storage space is reduced by the user pressing, for example, the operation unit or a part of the container (such as a peripheral surface portion). It shows a method in which the contents inside are discharged into the external space, and is a concept including a so-called extrusion type and tube type.

  The contents to be applied include, for example, liquid or cream soap, shampoo, rinse, cosmetics, milky lotion, foaming shaving foam, hair styling foam, and the like as described later.

  For example, the following patent document discloses a tip stop mechanism that actively prevents content sagging and measures against outer draw.

This tip stop mechanism is roughly
・ Operating buttons ・ Nozzles with horizontal direction (≈ orthogonal to the moving direction of the operating buttons) specifications on the operating buttons ・ Valve members installed in the internal space of the nozzles (downstream passage for discharging contents) An elastic body that biases the valve member so that the discharge port on the nozzle tip side is closed. A space area for suction that communicates with the internal space of the nozzle (a space area for back suction)
・ Cylindrical section linked with operation buttons (upstream passage for contents passage)
It consists of.

The valve member moves while resisting the urging force of the elastic body in accordance with the discharge operation of the contents, so that the discharge port is opened (operation mode), and when the discharge operation is completed, the valve member returns to the initial state. As a result, the discharge port is closed, and the internal volume of the suction space area is increased so that the remaining contents of the discharge port and the discharge passage nearby are sucked into the space area.
Japanese Patent Laid-Open No. 11-138061

  As described above, the conventional chip stop mechanism is easy to use in terms of the responsiveness at the start and end of discharge of the contents and the treatment of the remaining contents at the discharge port and the nearby passage portion at the end of discharge. It has become.

  However, the lateral range of the discharge passage of the nozzle is specified by the discharge port and the valve member portion on the opposite side. Therefore, in the process of elastic return of the valve member to the stationary mode of closing the discharge port at the end of the discharge operation, the “opposite side valve member portion” which is the back wall of the discharge passage moves toward the discharge port. The volume of the discharge passage decreases according to the amount of movement of the back wall.

  Due to the volume reduction of the discharge passage, the contents remaining in the discharge passage at the end of the discharge operation are pushed toward the discharge port (not completely closed yet), and the residual contents are It is possible to lean outward from the discharge port or to make an outer draw.

  As described above, the conventional tip stop mechanism leaves room for improvement in terms of “a reduction in the volume of the nozzle part discharge passage accompanying the valve member return operation at the end of the discharge operation”. This object also includes a tip stop mechanism that does not include a suction space area that communicates with the internal space (discharge passage) of the nozzle portion.

Also,
(a) The use of a dedicated member for setting the inhalation space area (back suction space area);
(b) When the discharge operation is performed, the operation button operating area (the contact portion with the valve member) for moving the valve member from the closed state of the discharge port to the open state is a cylindrical portion ( Not located on the extension line of the upstream passage for the passage of contents)
Are also considered in the present invention.

  In the present invention, the so-called rear end of the discharge passage (downstream passage) having the discharge port has a partition wall form different from the valve member for closing the discharge port, that is, the discharge operation ends (from the operation mode). The length (volume) of the discharge passage is constant and does not change even when the valve member is returned to the stationary mode), and the remaining contents of the discharge passage are moved toward the discharge port at the end of the discharge operation. The purpose is to prevent the remaining contents from sagging from the discharge port and to prevent outer draw by preventing the movement as much as possible.

  In addition, the purpose of this is to form a space area for suction of residual contents such as a discharge passage (downstream passage) at the end of the discharge operation to prevent further residual contents from sagging and to prevent outer draw. To do.

  Another object of the present invention is to reduce the number of parts and the cost of the entire chip stop mechanism and simplify the assembly work by using a part of the operation unit as a component of the space area for butts suction.

The present invention solves these problems as follows.
(1) Having an operation surface for releasing contents to the external space,
On the ceiling surface portion on the back side of the operation surface, a columnar hanging portion for setting a back suction space area (for example, a columnar hanging portion 22a to be described later) and a tapered operation action surface (for example to be described later) for the tip stop operation on the rear side. An operation cover surface 22b) formed with an operation cover surface (for example, a cover body 22 described later),
A hole for passage of contents (for example, a hole to be described later) that moves in response to a content discharge operation to the operation surface and is opened and closed by an annular upper valve (for example, an upper valve 9 to be described later) along with the movement. 7a) and a piston (for example, a later-described piston 7) in which a content intermediate passage region (for example, a later-described passage region 7b) is formed downstream from the hole ,
It is integrated with the piston on the downstream side of the content intermediate passage area, and in the stationary mode in which the operation cover body is not operated, the upper surface portion is separated from the ceiling surface portion and is arranged inside the operation cover body. Established
When the operation cover body moves in response to the content discharge operation to the operation surface, the ceiling surface portion is brought into contact with the upper surface portion and then interlocked with the operation cover body,
Further, a content discharge side passage area (for example, a horizontal passage 3d and a vertical passage 3e described later) following the content intermediate passage area, a content discharge port (for example, a discharge port 3b described later) on the front end side thereof, and the columnar hanging portion Into which an upper penetrating portion that acts as a back suction space area (for example, a space area 3c described later) and a rear end side penetrating position opposite to the content discharge port are formed (for example, a head 3 described later). When,
A blocking cylindrical portion (for example, a blocking portion 24 described later) attached to the rear end side through-portion of the head;
Arranged inside the operation cover body inside the head and outside the back thereof;
And a valve action part on the front end side with respect to the content discharge port, a large diameter part continuing rearward from the valve action part, and a small diameter part penetrating through the blocking cylindrical part following the large diameter part rearward (For example, a small-diameter portion 25a described later)
The small-diameter portion is provided with a hole (for example, a hole described later) that receives a contact and guide action with the tapered operation action surface (for example, a later-described operation action surface 22b) of the operation cover body on the rear outer side of the head. 25b) a chip stop actuating valve member (for example, a valve member 25 described later),
An elastic member (for example, a spring 26 described later) that urges the tip stop actuating valve member in a direction in which the valve action portion on the front end side comes into contact with the content discharge port;
The operation cover body is
As the tip stop actuating valve member moves in the abutting direction by the elastic member, the abutment guide action between the operation action surface and the hole portion causes the ceiling surface portion of the operation cover body to move. The stationary mode is set apart from the upper surface portion of the head.
(2) In (1) above,
The operating surface and the hole are
Each has a tapered surface for the abutment guide action.
(3) In the above (1) and (2),
The elastic member is
A spring wound around a small diameter portion range between a step portion (for example, a step portion 25c described later) at the rear end of the large diameter portion of the valve member and the cylindrical portion for closing.

  The present invention is directed to a chip stop mechanism having such a configuration, a pump-type product including the chip stop mechanism, and an aerosol type product including the chip stop mechanism.

And this tip stop mechanism
(11) In accordance with the transition from the operation mode to the stationary mode, it is confirmed that the residual content will drip from the outlet of the pump type product and solidify, and that the residual content will be outer drawn from the outlet of the aerosol type product. Can be more reliably prevented,
(12) It is possible to reduce the number of parts and cost of the whole chip stop mechanism and simplify the assembly work.
There are effects such as.

The best mode for carrying out the present invention will be described with reference to FIGS. As a reference example of the embodiment shown in FIGS. 4 to 6, the tip stop mechanism shown in FIGS.

Although Chips stop mechanism of the present invention as described above is intended also to be subject to any of the pump reservoir and aerosol container, the embodiment and FIGS. 1 and reference to FIGS. 4 to 6 below In the reference example using 3, for convenience of explanation, a pump type container is assumed.

  FIGS. 1-3 is explanatory drawing which shows the chip stop mechanism (the 1) of the aspect with which the operation effect | action part with respect to the valve member of a discharge port was set just above the up-and-down moving piston.

  4-6 is explanatory drawing which shows the chip stop mechanism (the 2) of the aspect set in the state which the operation action part with respect to the valve member of a discharge port has shifted | deviated back from right above a vertically-moving piston.

  Here, FIGS. 1 and 4 show an initial (unusable) mode in which the vertically moving piston is screwed to the container side at the lower position, and FIGS. 2 and 5 show that the vertically moving piston is released from the screw connection. FIG. 3 and FIG. 6 show an operation (end) mode after the vertical movement piston of FIGS. 2 and 5 is pushed down, respectively, after moving to the upward movement position.

  It should be noted that the following constituent elements with reference numbers with alphabets (for example, the hanging part 2a) indicate that they are part of the constituent elements with reference numbers without alphabets (for example, the cover body 2) in principle.

Here, in the chip stop mechanism (part 1) of FIGS.
1 is an operation unit comprising a cover body 2 and a head 3 which will be described later,
2 is a cover body having an operation surface of the operation unit 1, 2 a is a hanging portion for setting a back suction space area and vertically moving guided formed in the center portion of the ceiling surface, and 2 b is a taper formed on the hanging portion. -Shaped operation action surface, 2c is a front opening,
3 is a head having a content passage area of the operation unit 1, 3a is a nozzle portion protruding from the opening 2c, 3b is a discharge port on the nozzle tip side, and 3c is a back suction whose ceiling surface is defined by a hanging portion 2a. 3d is a longitudinal passage extending in the front-rear direction leading to the discharge port 3b, 3e is a longitudinal passage extending in the vertical direction reaching the transverse passage, 3f is a hanging cylindrical portion forming the longitudinal passage,
4 is a wall-type blocking portion fixed (fitted) to the head 3 and defining the rear end side of the lateral passage 3d;
Reference numeral 5 denotes a valve member which is disposed in the lateral passage space area of the head 3 and acts as an opening / closing member for the discharge port 3b, 5a is a tapered surface (hole) which comes into contact with the operation action surface 2b, and 5b is formed on the rear end side. A flange-shaped portion for guiding (guided on the peripheral surface of the lateral passage 3d), 5c is formed intermittently in the flange-shaped portion so that the contents can pass therethrough,
6 is a spring provided between the flange-like portion 5b and the closed portion 4 of the lateral passage 3d for urging the valve member 5 forward (toward the discharge port 3b).
7 is a piston that fits with the hanging cylindrical part 3f of the head 3 and moves up and down together with the head, 7a is a hole for passing the contents, 7b is a passage area in the vertical direction that continues downstream from the hole, 7c is a stepped portion that continues to the outside of the hole,
8 is a cylinder that accommodates the piston 7, 8a is an annular flange formed in the upper portion of the outer peripheral surface, 8b is a hole for preventing pressure reduction with respect to the inside of the container, 8c is an inlet for contents, 8d is an inlet for contents, and FIG. In the initial (unusable) mode, an annular protrusion that seals closely with the lower outer peripheral surface of the piston 7,
Reference numeral 9 denotes an annular upper valve that acts as an opening / closing member for the contents passage hole 7a while being guided by the inner peripheral surface of the cylinder, and 9a is a lower end of a bush-like member 13 to be described later in the stationary mode (see FIGS. 2 and 5). An upper annular end contacting the portion 13b;
10 is a ball-shaped lower valve that acts as an opening / closing member for the content inlet 8c;
11 is a spring provided in the lower space (inside the cylinder) to urge the piston 7 upward.
12 is a dip tube attached to the lower end side of the cylinder 8,
Reference numeral 13 denotes a bush-like member that fits with the upper outer peripheral surface of the cylinder 8 and also acts as a guide member for the vertical movement of the piston 7, and 13 a is formed on the upper inner peripheral surface and is an outer peripheral surface of the hanging cylindrical portion 3 f of the head 3. A screw portion 13b that can be screwed together, and a lower end portion that receives the upper valve 9 in the stationary mode (see FIGS. 2 and 5) and defines the most moved position of the piston 7,
14 is a container body storing various contents, 14a is an opening-side cylindrical portion to which the cylinder 8 is attached,
15 is a cylindrical cap screwed to the outer peripheral surface of the opening-side cylindrical portion 14a;
16 is an annular rubber for sealing the contents sandwiched between the annular flange 8a of the cylinder 8 and the upper end surface of the opening-side cylindrical portion 14a;
A is a storage space defined by an upper valve 9 and a lower valve 10 inside the cylinder 8;
Respectively.

Moreover, about the new component of the chip stop mechanism (the 2) of FIGS. 4-6,
Reference numeral 21 denotes an operation unit including a cover body 22 and a head 3 described above,
22 is a cover body having an operation surface of the operation unit 21, 22a is a columnar hanging portion for back suction space setting / up and down movement guide formed in the center portion of the ceiling surface, and 22b is formed in the rear portion of the ceiling surface. A tapered operation action surface, 22c is a front opening,
Reference numeral 24 denotes a bush-type closing portion fixed (fitted) to the head 3 and defining the rear end side of the lateral passage 3d;
25 is a valve member which is disposed in the lateral passage space area of the head 3 and acts as an opening / closing member for the discharge port 3b, 25a is a small diameter portion penetrating through the hole in the closed portion 24, and 25b A tapered surface (hole) that is formed in the small diameter portion and contacts the operation action surface 22b outside the closing portion 24, 25c is a step portion that is the beginning of the small diameter portion,
26 is a spring wound around a small diameter portion 25a between the step portion 25c and the closed portion 24 of the lateral passage 3d in order to urge the valve member 25 forward (toward the discharge port 3b).
Respectively.

  Here, for example, the closing portions 4 and 24 and the valve member 5 are made of plastic such as polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, and the springs 6 and 26 are made of metal.

  The springs 6 and 26 may be made of the above-described plastic. In that case, the springs 6 and 26 are molded in units such as the closing portion 4, the valve member 5 and the spring 6, or the closing portion 24 and the spring 26. It may be processed.

Further, the elastic force of the springs 6 and 26 that urge the valve members 5 and 25 forward is sufficiently smaller than that of the spring 11 that urges the piston 7 upward. That is, the magnitude relationship between the elastic forces of these springs is that when the operation parts 1 and 21 in the stationary mode (see FIGS. 2 and 5) are pushed down, only the valve members 5 and 25 are retracted first (= the piston 7 is moved downward). No) is set to the mode.

The basic features of the tip stop mechanism of FIGS.
(21) By setting the rear end of the lateral passage 3d inside the head as the closing portion 24, the volume (length in the front-rear direction) of the lateral passage becomes constant regardless of the position of the valve member 25 in the front-rear direction. ing,
(22) The so-called ceiling surface of the space area 3c for back suction is formed by a part of the cover body 22 (the hanging part 22a).
And so on.

  And each movement operation of the valve member 25 and the piston 7 when the cover body 22 is pressed, the discharge operation of the contents of the container body 14, and the valve member 25 when the cover body 22 is released. Each return operation of the piston 7 is the same as that of each conventional tip stop mechanism.

  In the initial (unusable) mode of FIGS. 1 and 4, the integrated body of the piston 7 and the head 3 (the suspended cylindrical portion 3 f) is screw-coupled to the bush-like member 13 at the lowest movement position. That is, the piston 7 is fixed at the lowest movement position inside the cylinder, and the product is conveyed from the manufacturer to the store in this fixed state and displayed.

At this time,
(31) The discharge port 3b of the head 3 (nozzle portion 3a) is closed at the tip portions of the valve members 5 and 25;
(32) The piston 7 is locked against the cylinder 8,
(33) The lower valve side portion of the storage space area A was sealed by the close action of the annular protrusion 8d of the cylinder 8 and the lower outer peripheral surface of the piston 7,
It is in a state. Of course, the contents of the container body 14 are not discharged in this state.

  2 and FIG. 5, the screw connection between the head 3 (hanging tubular portion 3 f) and the bush-like member 13 in FIGS. 1 and 4 is released, and the operation portions 1, 21 and the spring 11 are elastically operated. It is in an uplifted state. Of course, the stationary mode is also a state after the operating parts 1, 21 and the like are automatically returned by the elastic action of the spring 11 after the user repeatedly releases the screw connection and then repeatedly performs the releasing operation.

At this time,
(41) The close contact between the annular protrusion 8d of the cylinder 8 and the lower outer peripheral surface of the piston 7 in the storage space area A is released,
(42) In the storage space area A, the contents of the container main body are accommodated by opening the lower valve 10 along with a decrease in internal pressure while the piston 7 moves up to the position shown in FIGS.
(43) The upper valve 9 has an upper annular end 9a abutting against the lower end portion 13b of the bush-like member 13, and a hole peripheral surface portion and a lower surface portion closely contacting the hole portion 7a and the step portion 7c of the piston 7. Thus, the hole 7a for passing the contents is sealed by the upper valve 9.
It is in a state.

  3 and 6 is a state in which the cover bodies 2 and 22 in FIGS. 2 and 5 are pressed downward.

With this pressing operation,
(51) First, only the cover bodies 2 and 22 are moved downward with respect to the head 3, and at this time, the operation action surfaces 2b and 22b of the cover body and the taper surfaces 5a and 25b of the valve members 5 and 25 come into contact with each other. Due to the action, the valve member retreats against the urging force of the springs 6 and 26 and the discharge port 3b on the nozzle tip side opens,
(52) Next, after the ceiling surfaces of the cover bodies 2 and 22 come into contact with the upper surface of the head 3, these members move downward together (the valve members 5 and 25 are in the retracted position at the time of contact). Remain)
(53) The piston 7 integral with the head 3 and the upper valve 9 disposed in the illustrated small diameter portion from the stepped portion 7c of the piston to the upper portion of the hole 7a are also moved downward.
(54) Since the volume of the storage space area A is reduced and the internal pressure is increased, the upper valve 9 is shifted upward as shown in the figure with respect to the piston 7 (at this time, the lower valve 10 is moved downward by the internal pressure). To reliably close the inlet 8c of the contents)
(55) The hole 7a for passage of the contents of the piston 7 shifts from the “closed” state to the “open” state.

  In this way, when the closed state of the hole 7a of the piston 7 is released, the contents of the storage space area A are, as indicated by solid arrows, the hole 7a, the vertical passage area 7b, and the head. 3 is discharged into the external space through a path of 3 vertical passages 3e, 3d of horizontal passages, and 3b of discharge ports.

  2 and 5, the contact state between the upper annular end 9a of the upper valve 9 and the lower end portion 13b of the bush-like member 13 is also released, so that the decompression preventing hole 8b of the cylinder 8 is provided. The upper space of the container main body 14 and the container outer space communicate with each other through the route indicated by the dotted arrow.

  When the pressing operation of the cover bodies 2 and 22 is stopped, the piston 7 and the head 3 start to move upward by the elastic force of the spring 11, that is, from the operation mode to the stationary mode. Along with this upward movement, the volume of the storage space area A increases and its internal pressure gradually decreases.

  When the piston 7 moves up to some extent, the upper valve 9 closes the hole 7a, and the so-called resultant force of the internal pressure of the storage space area A and the weight of the lower valve 10 becomes lower than the internal pressure of the container body 14, the lower valve Opens and the contents of the container body 14 flow into the storage space area A.

  Although the internal pressure of the container is reduced by the amount by which the lower valve 10 is opened and the contents of the container main body 14 flow into the storage space area A, the piston 7 is completely returned to the stationary mode of FIGS. 9 until the above-mentioned dotted arrow path through the decompression prevention hole 8b is secured until the upper annular end 9a of 9 is in contact with the lower end portion 13b of the bush-like member 13, so that the outside air corresponding to the reduced amount is stored in the container. It flows into the upper space of the main body 14 and the internal pressure of the container returns to an appropriate state.

  When the internal pressure of the storage space area A increases due to the inflow of the contents, the lower valve 10 moves toward the inlet 8c and closes it. That is, the stationary mode state shown in FIGS.

  In parallel with the shifting operation of the piston 7 and the head 3 to the stationary mode, the valve members 5 and 25 inside the head are also returned to the front by the elastic force of the spring 6, and the tip portion of the valve members 5 and 25 opens the discharge port 3b. Block.

  Here, as described above, the rear end portion of the lateral passage 3d inside the head is the closed portions 4 and 24 different from the valve members 5 and 25, and the closed portion is fixed (fitted) to the head 3. Yes.

  Therefore, when the retracted valve members 5 and 25 (see FIGS. 3 and 6) return to the stationary mode, the residual contents in the lateral passage 3d are actively moved forward (toward the discharge port 3b) by the valve member. There is little to be pushed away. For example, since the flange-like portion 5b of the valve member 5 also has an intermittent cutout portion 5c, the degree of the action of the flange-like portion moving the residual contents in the front area of the lateral passage toward the discharge port 3b. Very small.

  That is, the return operation of the retracted valve members 5 and 25 reduces the extent to which the residual content in the lateral passage 3d is pushed toward the discharge port 3b, and thus the content is released from the discharge port 3b after returning to the stationary mode. It prevents dripping and solidification of the contents in the vicinity of the discharge port.

  It goes without saying that the sagging prevention action and the solidification prevention action associated with reducing the movement of the residual contents to the discharge port 3b are also effective for a head (lateral passage) without a back suction function.

  Each of the illustrated chip stop mechanisms has a back suction function. Therefore, it is possible to more effectively prevent the contents from being sunk from the discharge port 3b after returning from the operation mode to the stationary mode.

  Each of the chip stop mechanisms of FIGS. 1 to 6 has a back-suction working area in which the cover members 2 and 22 (the hanging portions 2a and 22a), which are the original components of the operation units 1 and 21, and the heads 3 and 23 Space areas 3c and 23c), thereby eliminating the need for dedicated parts for back suction.

  In addition, the tip stop mechanism of FIGS. 1 to 3 is such that the drooping portion 2 a of the cover body 2, which is a drive source of the valve member 5, is driven downward by the cover body 2 through the head 3. Since it is disposed almost directly above, the valve member 5 and the piston 7 (and the head 3) do not generate rotational power during the pressing operation of the cover body 2 in the downward direction (operation mode). The rearward movement of the member 5 and the downward movement of the piston 7 are each smoothly performed.

In addition, when applying the above chip stop mechanism to an aerosol-type container,
(61) The operation units 1 and 21 are not particularly changed.
(62) A so-called “stem” having substantially the same function as the piston 7 is used.
(63) Using a so-called “stem gasket (corresponding to the lower valve 10 )” having an annular outer edge portion fixed to the container side as an opening / closing member of the hole 7a for passing the contents,
(64) The pressure reducing prevention hole 8b and the lower valve 10 are omitted.
Become a shape.

  Pump type products and aerosol type 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, 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.

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

  As alcohols, monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, polyhydric alcohols such as ethylene glycol, and the like are used.

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

  As the polymer compound, methyl cellulose, gelatin, starch, casein and the like are used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, 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.

  As gas for releasing contents in aerosol products, compressed gas such as carbon dioxide, nitrogen gas, compressed air, oxygen gas, rare gas, and mixed gas thereof, and liquefied gas such as liquefied petroleum gas, dimethyl ether and fluorocarbon are used. .

In the tip stop mechanism in which the operation action portion for the valve member of the discharge port is set right above the vertical movement piston, an initial (unusable) mode in a state in which the vertical movement piston is screwed to the container side at the lower movement position is shown. It is explanatory drawing. It is explanatory drawing which shows the stationary mode after the vertical movement piston of FIG. 1 cancels | releases a screw coupling | bonding and transfers to the upper moving position. It is explanatory drawing which shows the action | operation (end) mode after pushing down the up-and-down moving piston of FIG. In the tip stop mechanism in which the operation action portion for the valve member of the discharge port is shifted rearward from directly above the vertical movement piston, the initial state in which the vertical movement piston is screwed to the container side at the lower movement position It is explanatory drawing which shows (unusable) mode. It is explanatory drawing which shows the stationary mode after the vertical movement piston of FIG. 4 cancels | releases screw coupling | bonding and transfers to the upper moving position. It is explanatory drawing which shows the action | operation (end) mode after pushing down the up-and-down moving piston of FIG.

Explanation of symbols

1: Operation unit 2: Cover body 2a having an operation surface and the like: Hanging portion 2b for setting the back suction space area and for vertically moving guide 2b: Taper-shaped operation action surface 2c: Front opening portion 3: Content passage area Head 3a: nozzle portion 3b: nozzle outlet side 3c: space area for back suction 3d: longitudinal passage 3e: vertical passage 3f in the vertical direction: drooping cylindrical portion 4: wall-type blockage Part 5: Valve member 5a: Tapered surface (hole)
5b: Flange-shaped portion 5c: Notch portion 6: Spring 7: Piston 7a: Hole portion 7b for passage of contents: Vertical passage region 7c: Step portion 8: Cylinder 8a: Annular flange portion 8b: Hole portion for preventing pressure reduction 8c: Content inlet 8d: Annular projection 9 that exhibits sealing action: Annular upper valve 9a: Upper annular end 10: Ball-like lower valve 11: Spring 12: Dip tube 13: Bush-like member 13a: Screw Part 13b: lower end part 14: container main body 14a: opening side cylindrical part,
15: Cap 16: Annular rubber 21: Operation part 22: Cover body 22a: Columnar hanging part 22b for setting the back suction space area and vertically moving guided part 22b: Tapered operation action surface 22c: Front opening 24: Bush Type of closed portion 25: valve member 25a: small diameter portion 25b: tapered surface (hole)
25c: Step part 26: Spring A: Storage space area

Claims (5)

It has an operation surface for releasing contents to the external space,
An operation cover body formed with a columnar hanging portion for setting a back suction space area and a tapered operation action surface for tip stop operation on the ceiling surface portion on the back side of the operation surface,
A content passage hole that moves in response to a content discharge operation to the operation surface and that is opened and closed by an annular upper valve according to the movement, and a content intermediate portion that continues downstream from the hole portion. A piston formed with a passage area;
It is integrated with the piston on the downstream side of the content intermediate passage area, and in the stationary mode in which the operation cover body is not operated, the upper surface portion is separated from the ceiling surface portion and is arranged inside the operation cover body. Established
When the operation cover body moves in response to the content discharge operation to the operation surface, the ceiling surface portion is brought into contact with the upper surface portion and then interlocked with the operation cover body,
And a content discharge side passage area following the content intermediate passage area, a content discharge opening on the front end side thereof, an upper penetrating portion into which the columnar hanging portion enters and acts as a back suction space area, and the content discharge opening A head having a rear end side through portion formed at a position opposite to the head,
A blocking cylindrical part attached to the rear end side through part of the head;
Arranged inside the operation cover body inside the head and outside the back thereof;
And a valve action part on the front end side with respect to the content discharge port, a large diameter part continuing rearward from the valve action part, and a small diameter part penetrating through the blocking cylindrical part following the large diameter part rearward And having
In the small-diameter portion, a tip stop actuating valve member formed with a hole that receives a contact guide action with the tapered operation action surface of the operation cover body on the rear outer side of the head;
An elastic member that urges the tip stop actuating valve member in a direction in which the valve action portion on the front end side thereof abuts on the content discharge port;
The operation cover body is
Due to the contact guide action between the operation action surface and the hole portion as the tip stop actuating valve member moves in the abutting direction by the elastic member, the upper surface portion of the head is made to correspond to the operation cover. Set to a state of static mode spaced from the ceiling portion of the body,
A tip stop mechanism characterized by that. The operating surface and the hole are
Each has a tapered surface for the abutment guide action,
The tip stop mechanism according to claim 1. The elastic member is
A spring wound around a small-diameter portion range between a step portion at the rear end of the large-diameter portion of the valve member and the cylindrical portion for closing.
The tip stop mechanism according to claim 1 or 2, wherein The chip stop mechanism according to any one of claims 1 to 3 is provided, and the contents are contained inside the container body.
This is a pump-type product. The chip stop mechanism according to any one of claims 1 to 3 is provided, and a gas for discharge and contents are contained inside the container body.
Aerosol type product characterized by that.

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