JP4974174B2 - 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 “static mode” and “operation mode” in this specification are operating states as a pump-type product or an aerosol-type product. The tip stop mechanism itself sets the content outlet to the closed state (= blocking state with the external space) when in the stationary mode and to the open state when in the operating mode.

  Similarly, in the “pump type”, the volume of the content storage space is reduced when the user presses, for example, an operation unit or a part of the container (such as a peripheral surface), and the content contained therein Is a concept including a so-called extrusion type, tube type, and the like.

  The contents to be applied include various types of liquid or cream soap, shampoo, rinse, cosmetics, emulsion, 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
Operation member (11)
・ Head (12) with the operation member attached and having a discharge port for contents and a passage area leading to it
・ Seal acting part (13e) that moves to the external space side in the operation mode to open the discharge port, and enters the discharge port from the external space side and closes it when returning to the stationary mode Opening and closing member (13)
-Elastic member (15) for urging the opening / closing member so that the discharge port is closed
-Suction space (17) whose volume changes with the transition of the elastic member
It consists of.

Then, the opening / closing member (13) moves in the forward direction (= the direction in which the sealing action portion (13e) moves away from the head passage area) while resisting the biasing force of the elastic member (15) as the contents are released. The discharge port is opened (operation mode), and when the discharge operation is completed, the opening / closing member (13) is returned to the discharge port closed state by the urging force of the elastic member (15), and the remaining contents such as the head passage area are removed. In addition to preventing solidification, the internal volume of the suction space area is enlarged, and residual contents such as a discharge port and a head passage area nearby are sucked into the space area.
JP 2004-329985 A

  As described above, the conventional chip stop mechanism has a response at the start and end of discharge of contents, and prevents dripping and solidification of residual contents such as the discharge port and the head passage area nearby at the end of discharge. It is a user-friendly mechanism in terms.

However, when the discharge port is returned from the open state ( operation end mode) to the closed state ( stationary mode), the sealing portion (13e) of the opening / closing member (13) fits into the discharge port of the head (12). As a result, the outer edge of the discharge port and the outer portion in the vicinity thereof (the surface side portion of the hanging portion (12d)) remain exposed to the external space, and the contents attached to the exposed portion are exposed to the outside air. It may solidify and become “icicle” as the number of uses increases.

  In this way, the conventional tip stop mechanism is described as follows: `` At the time of returning from the open state of the discharge port to the closed state, the attachment zone such as the outer edge of the discharge port and the outer portion in the vicinity thereof becomes an external space area. There is room for improvement in that the contents attached to it will naturally come into contact with the outside air and solidify.

  This improvement target includes a tip stop mechanism of a pump container or an aerosol container that does not have a space area for sucking residual contents, that is, does not have a back suction function.

In the present invention, when the discharge port is returned from the open state ( operation end mode) to the closed state ( stationary mode), only the discharge port is sealed by the sealing operation on the outer peripheral portion of the discharge port (not the sealing operation inside the discharge port). The purpose is to prevent the remaining contents in the adhesion zone from solidifying, preventing dripping into the external space, and preventing outer draw by blocking up to the adhesion zone near the discharge port instead.

  Further, when the discharge port in the open state is returned to the closed state (= blocking state with the external space), the discharge member sealing member (for example, sealing action surfaces 4a and 23c described later and a large-diameter inner periphery on the front end side) As a chip stop structure in which the surfaces 4b and 23b) do not contact the adhesion zone, at the time of return, the remaining contents of the adhesion zone are sealed by a seal member (for example, bowl-shaped portions 5c and 24c described later) Suppressing being sent to the outer adjacent area (external space) to prevent the residual contents from sagging into the external space and preventing outer draw, and to prevent solidification in the sealed portion and the outer adjacent area. For the purpose.

  It is another object of the present invention to improve the efficiency of the back suction operation by setting the space area for back suction so as to continue in the same direction from the passage portion on the downstream side of the contents discharge port.

The present invention solves the above problems as follows.
In this paragraph, for convenience of explanation, the name of each corresponding part in the following description, the drawings, and the reference number are given in parentheses following each component as necessary for each component. It is written together.
(1) A head member for the contents discharge port (discharge ports 5a, 24a) of the content discharge passage member (passage member 5 + tail plug portion 6, passage member 5 ′ + tail plug portion 6, output passage member 24) The sealing operation at the stationary mode position of the head 3 + seal member 4 and the head 23) is performed by the operation mode transition operation of the operation buttons (operation buttons 2 and 22), and elastic members (coil spring 7 and leaf spring 25 for setting the seal operation). In the tip stop mechanism that is released in a form that resists)
The operation buttons are
During the operation mode transition operation,
First, in order to cancel the sealing operation, a tapered surface (tapered surfaces 2c, 22c) for driving the passage member in a forward direction toward the contents discharge port;
A ceiling surface (the ceiling surface of each of the operation buttons 2 and 22) for driving the head member to the operation mode position after the sealing operation is released,
The passage member is
Tapered surface abutting portion to be driven in the forward direction by the tapered surface (driven surface 6a, the spring connecting portion 24h),
An internal space area on the discharge side through which the content discharged to the external space area passes ( the internal space area of the passage member 5, the internal space area of the passage member 5 ′, the central internal space area leading to the discharge port 24a);
The content outlet formed in the internal space of the discharge side;
A portion to be sealed (saddle-like portions 5c, 24c) formed on the front side of the outlet side of the content discharge port,
The head member is
An inner peripheral surface that acts as a content passage from the container body side to the passage member and guides the passage member in a close contact state (small inner diameter following the rear side of the small diameter inner peripheral surface 4c and the large diameter inner peripheral surface 23b) A member having at least a cylindrical part (seal member 4, front side part of the L-shaped passage part 23a) composed of a peripheral surface,
Ceiling surface abutting part driven to the working mode position by said ceiling surface (upper surface of the head 3, the protrusion receiving portion 23d),
Sealing action surfaces (sealing action surfaces 4a and 23c) which are formed on the front end surface portion of the cylindrical part and exhibit a sealing action with the sealed part;
In the stationary mode exhibiting the sealing action, the radial direction of the cylindrical portion from each of the outflow side opening of the content discharge port of the passage member and the outer peripheral surface portions (large diameter outer peripheral surface portions 5b, 24b) around the outlet portion. The inner peripheral surface portion that is not in contact with the outer peripheral surface portion on the front end side of the cylindrical portion , which is formed in a mode that is separated from the sealing action surface and continues to the rear side opposite to the front direction from the sealing action surface (large Inner circumferential surface 4b, 23b),
The elastic member is
In a mode in which the sealed portion and the sealing action surface are set in a sealed state in contact with each other in the stationary mode, the sealing portion and the head member are provided between the passage member and the head member.
Use things.
(2) In (1) above,
The passage member (passage member 5 + tail plug portion 6, passage member 5 ′ + tail plug portion 6)
Sliding guided by the inner peripheral surface of the head member (head 3), which constitutes the rear portion of the discharge-side internal space region ( internal space regions of the passage members 5 and 5 ') composed of straight cylindrical portions. Part (tail plug part 6),
The head member is
Extending in the same linear direction as the straight cylindrical portion, and has an internal space region (upper internal space region of the head 3) in which a back suction action occurs due to the backward movement of the sliding portion.
Use things.
(3) In (1) above,
The passage member (output passage member 24)
An inner cylindrical portion in which the inner space area on the discharge side (the central inner space area leading to the discharge port 24a) and the content discharge port (discharge port 24a) are formed;
An outer cylindrical portion formed with a content discharge opening (opening 24f) facing the content discharge port,
The head member (head 23)
A front portion including the sealing action surface (sealing action surface 23c) and the inner peripheral surface portion (large-diameter inner peripheral surface 23b) is disposed between the inner cylindrical portion and the outer cylindrical portion. ,
Use things.

  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) With the return operation from the operation end mode (= opening state of the discharge port) to the stationary mode, the discharge port of the pump type product or aerosol type product or the residual contents in the vicinity of the discharge type will fall on the external space and the outer draw will occur. , And more reliably prevent this from solidifying,
(12) When in the stationary mode, it is possible to prevent the user from seeing the discharge port to which the residual contents are attached.
(13) The back suction action can be made more efficient.
There are effects such as.

FIG. 1 is an explanatory diagram showing an open state ( operating mode) of the tip stop mechanism (part 1). FIG. 2 is an explanatory diagram showing an open state ( operation end mode) and a closed state ( stationary mode) of the chip stop mechanism of FIG. FIG. 3 is an explanatory diagram showing an open state ( operation end mode) and a closed state ( stationary mode) of the tip stop mechanism (part 2). FIG. 4 is an explanatory view showing an open state ( operation end mode) and a closed state ( stationary mode) of the tip stop mechanism (part 3). FIG. 5 is an explanatory view showing an example of a change in the outer peripheral surface shape in the vicinity of the discharge port of the chip stop mechanism of FIGS.

Explanation of symbols

  The following reference elements with alphabetical reference numbers (for example, the opening 2a) indicate that they are in principle part of the components with reference numerals without alphabetic characters (for example, the operation buttons 2).

DESCRIPTION OF SYMBOLS 1 Operation member which consists of below-mentioned operation button 2 and head 3, etc. 2 Operation button, 2a is a front opening part, 2b is a rib part for a drive extended inside from a rear side inner surface, 2c is formed in the said rib part 3. A taper surface for changing the moving direction 3 A head having a content passage area and the like, which is fixed (fitted) to a piston 8 described later, and a hole 3a for guiding the movement of the tail plug portion 6 described later in the front-rear direction , 3b is an opening region that allows the rib-like portion 2b to move in the vertical direction, and 3c is an opening portion for passing contents directly connected to a passage region of a piston 8 described later. A cylindrical sealing member for blocking a discharge port 5a, which will be described later, from the external space, 4a is a sealing action surface at the front end, 4b is a large-diameter inner peripheral surface on the front end side, and 4c is behind the large-diameter inner peripheral surface. Continued small diameter inner peripheral surface,
5 and 5 ′ (see FIG. 3) are sheath-like passage members that are guided by the seal member 4 and move in the front-rear direction, 5a is a discharge port formed in the peripheral surface portion, and 5b is a large diameter just outside the discharge port. An outer peripheral surface portion (a part of the large-diameter outer peripheral surface), 5c is a portion that follows the large-diameter outer peripheral surface, and a hook-shaped portion that comes into contact with the sealing surface 4a in the stationary mode, and 5d continues behind the large-diameter outer peripheral surface. A small-diameter outer peripheral surface, 5e is an annular guide protrusion formed on the small-diameter outer peripheral surface, 5f is a rear notch in the front-rear direction formed on the small-diameter outer peripheral surface, and 5g (see FIG. 3) is the seal member 4. An outer cylindrical cover portion covering the entire front side, 5h (see FIG. 3) is a content discharge opening portion 5j (FIG. 5) formed on the front side portion of the cover portion so as to face the discharge port 5a. Is a concave portion formed on the large-diameter outer peripheral surface portion 5b to reduce its area. A sheath-shaped tail plug portion 6a that is fixed (fitted) to the rear end side and receives a forward driving force by a downward pressing operation of the operation button 2, has a tapered shape that contacts the tapered surface 2c of the operation button 2. The driven surface, 6b is a skirt-like portion guided to the inner peripheral surface of the head 3, and 6c is formed in the front-rear direction, and overlaps with the rear notch portion 5f of the passage member 5 when assembling the chip stop mechanism. Front notch portion for setting the slit in the front-rear direction 7 Provided between the rear end portion of the seal member 4 and the skirt-like portion 6b of the tail plug portion 6 to bias the passage member 5 and the tail plug portion 6 in the rear direction. Coil spring 8 Piston fitted to the head 3 and interlocked in the vertical direction, 8a is a hole for passing contents, 8b is a vertical passage area downstream from the hole, and 8c is a hole of the hole. Step part that continues to the outside 9 To accommodate the piston 8 Cylinder, 9a are annular flange portion formed on the upper portion of the outer peripheral surface, 9b is vacuum prevention hole with respect to the container interior, 9c is an inlet of the contents,
10 An annular upper valve that acts as an opening / closing member for the content passage hole 8a while being guided by the cylinder inner peripheral surface, and 10a is an upper annular end portion that abuts a lower end portion 13b of a bush-like member 13 described later in a stationary mode. 11 Ball-shaped lower valve acting as an opening / closing member for the content inlet 9c 12 Coil spring provided in the lower space (inside the cylinder) to urge the piston 8 upward 13 Upper outer peripheral surface of the cylinder 9 And a bush-like member 13a that also functions as a guide member for the vertical movement of the piston 8, and is formed on the inner peripheral surface of the upper side to the outer peripheral surface of the hanging cylindrical portion of the head 3 (for example, when shipping or displaying the product) And b) a threaded portion 13b for receiving the upper valve 10 in the stationary mode and defining the uppermost moving position of the piston 8. 14 A container body containing various contents 14a is an opening-side cylindrical portion to which the cylinder 9 is attached 15 A cylindrical cap that is screwed with an outer peripheral surface of the opening-side cylindrical portion 14a 16 An annular flange portion 9a of the cylinder 9 and an upper end surface of the opening-side cylindrical portion 14a An annular rubber for contents sealing sandwiched between them A A storage space area inside a cylinder defined by an upper valve 10 and a lower valve 11

21 An operation member comprising an operation button 22 and a head 23 which will be described later 22 An operation button, 22a is a front opening, 22b is a pair of driving ribs (only one is shown) extending inward from the rear inner surface, 22c is A taper surface for changing the moving direction formed on each of the rib-like portions and contacting a rear surface of a spring connecting portion 24h described later (only one is shown).
23 A head having a content passage area and the like fixed (fitted) to the piston 8, 23 a is an L-shaped passage portion immediately downstream of the piston 8, and 23 b is a large diameter on the front end side of the L-shaped passage portion The inner peripheral surface, 23c is a sealing action surface at the front end, 23d is a protruding receiving portion with which the ceiling surface of the button abuts when the operation button 22 is pushed down (= when operating to the operation mode), and 23e is the operation button 22 23f is an annular protrusion guided to the inner circumferential surface of the operation button 22 on the lower end side of the bowl-shaped base, and 23g is formed on the bowl-shaped base to be described later. engaging portion for holding the spring 25, 23h is the longitudinal axis of the arm portion (output passage member 24) itself by receiving arms 24g later in its upper surface is formed on the brim base individually A pair of upright strips (one Only the direction is shown)
24 With a bottom (sheath-like shape) guided and moved to the inner peripheral surface of the passage portion while covering the front-end outer peripheral surface in the front-rear direction of the L-shaped passage portion 23a of the head 23 based on the setting operation to the stationary mode / operation mode ), An output passage member composed of a double cylindrical portion inside and outside, 24a is a discharge port formed in the peripheral surface portion of the inner cylindrical portion, and 24b is a large-diameter outer peripheral surface portion (large diameter) just outside the discharge port. A part of the outer peripheral surface), 24c is a portion that continues to the outer peripheral surface of the large diameter, and a hook-shaped portion that contacts the sealing surface 23c of the head 23 in the stationary mode, and 24d is an outer periphery of the small diameter that continues to the rear of the outer peripheral surface of the large diameter 24e is a guide skirt formed on the outer peripheral surface of the small diameter, 24f is a content discharge opening formed on the outer surface of the outer cylindrical portion so as to face the discharge port 24a, and 24g A pair formed in a manner extending rearward from the outer cylindrical portion The arm portions (only one is shown) and 24h are formed so as to stand outward at the rear end portions of the respective arm portions, abut against the tapered surface 22c of the operation button 22, and the free end portion of the leaf spring 25 to be described later A pair of spring connecting parts constrained by (only one shown)
25 An action piece (only one is shown) is arranged outside the pair of arm portions 24g and integrated with the spring connecting portion 24h of the arm portion, and the end portion of the common substrate portion of the action piece is engaged with the head 23. A leaf spring that urges the output passage member 24 in the backward direction (= static mode in which the discharge port 24a is closed) while being fixed to the portion 23g.

  As described above, the tip stop mechanism of the present invention is applicable to both pump-type containers and aerosol-type containers. However, in the following embodiments using FIGS. For convenience, a pump-type container is assumed.

  Here, FIG. 1 shows an operation mode in which the upper valve is opened while the vertically moving piston is moving downward by pressing the operation button, and FIGS. 2 (a) to 4 (a) are vertically moved. FIG. 2 (b) to FIG. 4 (b) show a stationary mode in a state in which the vertically moving piston returns upward from the operation end mode, respectively, in a state where the piston has moved to the lowest position. .

  Note that the head 23 in FIG. 4 is integrated with a cylindrical portion (a part of the L-shaped passage portion 23a) in the front-rear direction corresponding to the seal member 4 in FIGS.

  Here, for example, the operation members 1, 21, seal members 4, passage members 5, 5 ', tail plug portion 6 and output passage member 24, etc. are made of plastic made of polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like. The coil spring 7 and the leaf spring 25 are made of metal.

The elastic force of the coil spring 7 that urges the tail plug portion 6 (passage members 5, 5 ′) in the rearward direction and the leaf spring 25 that urges the arm portion 24g (output passage member 24) in the rearward direction is: It is sufficiently smaller than that of the coil spring 12 that urges the piston 8 upward.

  That is, the magnitude relationship between these elastic forces is such that when the operation buttons 2 and 22 in the stationary mode (see FIGS. 2 to 4B) are depressed, the tail plug portion 6 (passage members 5 and 5 ′) and arms The part 24g (output passage member 24) moves in the forward direction, and the piston 8 is set in such a manner that it does not move downward.

The basic features of each illustrated chip stop mechanism are outlined below.
(21) The contents discharge ports 5a and 24a themselves are not blocked in the stationary mode, but the seal members 4 and the head 23 are placed on the flanges 5c and 24c disposed on the outer space side of the discharge ports. The sealing surfaces 4a and 23c are in contact with each other.
(22) When returning from the operation end mode to this contact state (stationary mode), this is applied to the outer portions around the discharge ports 5a and 24a (= large-diameter outer peripheral surface portions 5b and 24b to which residual contents are likely to adhere). The part (the sealing member 4 and the large-diameter inner peripheral surface 4b, 23b of the head 23) that is opposed to the contact with the
(23) In the case of the tip stop mechanism of FIGS. 1 to 3, it is formed between the rear end portion of the seal member 4 and the skirt-like portion 6b of the tail plug portion 6 (having a larger diameter than the passage portion of the seal member 4). The space area for back suction inside the head is made to be continuous in the same longitudinal direction from the content passage area of the passage members 5 and 5 ′,
This has the above-mentioned effects.

When the user presses the operation button 2 in the stationary mode as shown in FIG. 2B downward, the transition operation to the operating mode in FIG. 1 is as follows.
(31) First, only the operation button 2 moves downward from the stationary mode position with respect to the head 3, and the tail plug portion 6 and the passage member 5 are moved forward by the so-called conversion action of the tapered surface 2c and the driven surface 6a. (At this time, the skirt 6b of the tail plug portion 6 is guided to the inner peripheral surface of the head 3, and the annular protrusion 5e of the passage member 5 is guided to the small-diameter inner peripheral surface 4c of the seal member 4).
(32) The operation button 2 is moved down to a state where the inner ceiling surface and the upper surface of the head 3 are in contact with each other to set the discharge port 5a to a final open state (at this time, the upper valve 10 remains closed). ,
(33) The head 3 after this contact is further moved down, and the piston 8 integrated therewith is also pushed down to increase the content pressure in the storage space area A, thereby setting the upper valve 10 in the open state, and The lower valve 11 is set to a closed state.

  By the valve action of the upper valve 10 and the lower valve 11, the contents of the storage space area A flow out from the discharge port 5 a of the passage member 5 to the external space along the path indicated by the solid line arrow in the figure.

  When the user stops pressing the operation button 2, the piston 8 is moved upward by the elastic force of the coil spring 12, and the passage member 5 and the tail plug portion 6 are moved backward by the elastic force of the coil spring 7. To return to still mode.

  At this time, the upper valve 10 that moves together with the piston 8 is set to a state in which the lower end portion 13b of the bush-like member 13 is received and the hole 8a for passing the contents is closed.

  In addition, with the return to the stationary mode, the volume of the storage space area A increases and the internal pressure thereof decreases, so the lower valve 11 is moved upward by the pressure of the contents of the container body 14 and is opened. The contents flow into the storage space.

  As the contents flow in, the internal pressure of the storage space area A increases from the above-mentioned decrease, and the lower valve 11 moves toward the inlet 9c due to this pressure increase and its own weight, and finally the flow Close the inlet. That is, the stationary mode as shown in FIG.

  Further, although the internal pressure of the container is reduced by the amount of the contents of the container main body 14 flowing into the storage space area A, the piston 8 is completely returned to the stationary mode as shown in FIG. Until the portion 10a comes into contact with the lower end portion 13b of the bush-like member 13, the illustrated dotted arrow path through the decompression prevention hole 9b is secured, so that the outside air corresponding to the reduced amount is in the upper space of the container body 14. The pressure inside the container returns to an appropriate state.

As shown in the drawings, each chip stop mechanism of FIGS.
(41) When returning from the operation end mode to the stationary mode, the large-diameter inner peripheral surface on the front end side of the seal member 4 or the head 23 is placed on the large-diameter outer peripheral surface portions 5b and 24b near the discharge port where residual contents are likely to adhere. 4b and 23b are not in contact,
(42) After returning to the stationary mode, the sealing members 4 and the sealing action surfaces 4a and 23c at the front ends of the head 23 come into contact with the flanges 5c and 24c which are the outer space areas of the discharge ports 5a and 24a. Blocking the outlet from the external space,
It is an aspect.

  Therefore, when returning from the operation end mode to the stationary mode, the remaining contents near the discharge ports 5a and 24a and the outside thereof are moved toward the external space by the seal member 4 and the front end side portion (surface portion related to the seal operation) of the head 23. There is no such thing as being pushed.

  As described above, the dripping prevention action, the outer draw prevention action and the solidification prevention action due to the removal of the factor that the residual contents in the vicinity of the discharge ports 5a and 24a and the outside thereof are positively pushed to the outside space side are backed up. Of course, it is also effective for a tip stop mechanism without a suction function.

  The tip stop mechanism (No. 1 and No. 2) of FIG. 2 and FIG. 3 sets a back suction space region on an extension line in the longitudinal direction of the passage members 5 and 5 ′.

  Therefore, the remaining contents of the passage members 5 and 5 ′ including the discharge port 5 a when returning from the operation end mode to the stationary mode are efficiently sucked into the back suction space area.

The main point that the tip stop mechanism (part 3) in FIG. 4 is different from that in FIG. 2 and FIG.
(51) A content passage downstream of the piston 8 is formed by an L-shaped passage portion 23a of the head 23 and an output passage member 24 covering the front side of the passage portion,
(52) The output passage member 24 is urged rearward by a leaf spring 25 fixed to the flange-like base portion 23f of the head 23,
(53) A well-known back suction action part (for example, Japanese Utility Model Laid-Open No. 5-81052) set in the upstream portion on the piston 8 side is used without forming a space area for back suction inside the head.
That is true.

  As the operation button 22 is pressed, the output passage member 24 is pushed forward by the action of the tapered surface 22c and the spring connecting portion 24h to set the discharge port 24a to the open state, and then the head 23 and the piston 8 are moved. A series of operations from the stationary mode to the operation mode, such as moving downward, is the same as the above (31) to (33).

  Further, the operation modes of the large-diameter inner peripheral surface 23b and the sealing action surface 23c of the head 23 with respect to the discharge port 24a are the same as those of the chip stop mechanism of FIGS. 1, 2, and 3, as described above.

  FIG. 5 shows an example of reducing the total area of the large-diameter outer peripheral surface portion 5b near the discharge port where residual contents are likely to adhere when returning from the operation end mode of FIG. 2 (a) to the stationary mode of (b). In this case, the concave portion 5j is formed on the outer peripheral surface portion.

  The substantial reduction of the large-diameter outer peripheral surface portion 5b suppresses the degree of adhesion of residual contents accompanying the return to the stationary mode. Of course, the method of forming the concave portion on the outer peripheral surface portion of the large diameter can be applied to the passage member 5 ′ in FIG. 3 and the output passage member 24 in FIG. 4.

In the tip stop mechanism described above, the passage members 5 and 5 ′ may be fixed, and the seal member 4 may be moved in the front-rear direction. The direction of the discharge ports 5a and 24a may be other than the downward direction.

  Further, a large diameter portion is formed on the inner peripheral surface of the seal member 4, the outer peripheral surface of the passage members 5 and 5 ', the inner peripheral surface of the front cylindrical portion of the head 23, and the outer peripheral surface of the inner cylindrical portion of the output passage member 24. And the small diameter portion may not be formed.

In addition, when applying the above chip stop mechanism to an aerosol-type container,
(61) The operation members 1 and 21 are not particularly changed.
(62) A so-called “stem” having substantially the same function as the piston 8 is used.
(63) A so-called “stem gasket (corresponding to the upper valve 10)” having an annular outer edge portion fixed to the container side as an opening / closing member of the hole 8a for passing the contents,
(64) The decompression prevention hole 9b and the lower valve 11 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. .

Claims (5)

Chips in which the seal operation at the stationary mode position of the head member relative to the content discharge port of the content discharge passage member is released against the elastic member for setting the seal operation by the operation mode transition operation of the operation button. In the top mechanism,
The operation buttons are
During the operation mode transition operation,
First, in order to release the sealing operation, a tapered surface that drives the passage member in a forward direction toward the contents discharge port;
A ceiling surface that drives the head member to the operation mode position after the sealing operation is released, and
The passage member is
A tapered surface abutting portion to be driven in the forward direction by the tapered surface,
An internal space area on the discharge side through which the content discharged to the external space area passes,
The content outlet formed in the internal space of the discharge side ;
A sealed portion formed on the front side of the outflow side opening of the content discharge port, and
The head member is
A member that acts as a content passage from the container body side to the passage member, and that includes at least a cylindrical portion formed of an inner peripheral surface that guides the passage member in a close state;
A ceiling surface abutting part driven to the working mode position by the ceiling surface,
A sealing surface that is formed on the front end surface portion of the cylindrical portion and exhibits a sealing action with the sealed portion;
In the stationary mode exhibiting the sealing action, the cylindrical part is spaced apart from the outflow side opening of the contents discharge port of the passage member and the outer peripheral surface portion around the opening, and the sealing action surface Formed from the back side opposite to the front direction , the cylindrical part front end side, the inner peripheral surface part that does not contact the outer peripheral surface part ,
The elastic member is
In a mode in which the sealed portion and the sealing action surface are set in a sealed state in contact with each other in the stationary mode, the sealing portion and the head member are provided between the passage member and the head member.
A tip stop mechanism characterized by that. The passage member is
Comprising a sliding portion guided by the inner peripheral surface of the head member by constituting a rear portion of the inner space area on the discharge side composed of a straight cylindrical portion;
The head member is
Extending in the same linear direction as the straight cylindrical portion, and having an internal space region in which a back suction action occurs due to the backward movement of the sliding portion.
The tip stop mechanism according to claim 1. The passage member is
An inner cylindrical portion in which the inner space area on the discharge side and the content discharge port are formed;
An outer cylindrical portion formed with a content discharge opening facing the content discharge port,
The head member is
A front portion including the sealing action surface and the inner peripheral surface portion is disposed between the inner cylindrical portion and the outer cylindrical portion;
The tip stop mechanism according to claim 1. 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 the gas for discharge and the contents are contained inside the container body.
Aerosol type product characterized by that.

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