JP2011088663A - Shutoff mechanism, pump type product with shutoff mechanism and aerosol type product with shutoff mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutoff mechanism provided in a pump type product and an aerosol type product, in which assembly work of a valve member for shutoff motion is simplified, cam motion of the valve member is stabilized and ensured, and the sealing performance is ensured when the valve member is moved. <P>SOLUTION: The valve member 3 of the shutoff mechanism is comprised of: a check valve 4 made of a soft material, having a reverse skirt 4b for setting a content passage; and a cam follower 5 made of a hard material, having a cam follower surface 5c with a circumferential shape, which is formed outside of the content passage independently of the content. The cam follower surface cam-operates between a circular taper cam surface 6f corresponding to the circumferential shape and the cam follower surface. Without providing with a sliding guide of the valve member on an operation button 1 directly, the inner part of a cylindrical nozzle 2 in which a sink mark hardly appears is the sliding guide. The shape of the valve member is free in a direction but for the axial direction, and has no portion to be fixed to the other member, so that the installation work is simplified. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  According to the present invention, the discharge hole to the external space is closed at the end of the discharge operation of the contents of the container main body, so that the contents remaining in the nearby passage area do not leak from the discharge hole toward the external space. The present invention relates to a shut-off mechanism, that is, a shut-off mechanism that prevents sagging (solidification) in a pump-type container, an outer draw in an aerosol-type container, and the like, and a pump-type product and an aerosol-type product having this shut-off mechanism.

  In pump-type products and aerosol-type products with a shut-off mechanism, when the user presses the operation button to release the contents of the container from the discharge hole to the external space, first the valve member for the discharge hole, the stem side member, The movement of the valve member based on the cam action causes the discharge hole to shift from the closed state to the open state (the stem does not move at this time), and the discharge hole remains open after the cam action is completed. The valve action part on the stem side is opened by the interlocking of the operation button and the stem, and the content is released.

  In the present specification, the front / rear and top / bottom positional relationship is described as “front” on the content discharge hole side of the nozzle, and “rear” on the side of, for example, the coil spring for biasing the check valve opposite to the front, and The operation button side is described as “up”, and the opposite container body side is described as “down”. The direction orthogonal to the drawings in FIGS. 1 to 3, 5, and 6 is referred to as “horizontal”.

  In addition, the term “soft material” is used to indicate a soft property to ensure sufficient valve action and sealing action, and it has a hard property to prevent the cam action part from deforming and smooth movement of the cam member. The term “hard material” is used to indicate.

  The contents to which the shut-off mechanism is applied include various liquid and cream soaps, shampoos, rinses, cosmetics, emulsions, foaming shaving foams and hair styling foams as described below. .

A shut-off mechanism for preventing the sagging of contents and measures against outer draw is disclosed, for example, in Patent Document 1 below. Hereinafter, reference numbers in Patent Document 1 are indicated by numbers with []. Note that the reference numbers [12b ₁ ] and [12b ₂ ] in FIG. 5 are assumed to be reversed.

In FIG. 5 of Patent Document 1, a jet port [31], a valve member [12b] for the jet port, a connecting cylinder member [12c ₂ ] exhibiting a cam action with the valve member, and the connecting cylinder member are attached. In addition, a shut-off mechanism including a stem [11] and a casing [12a ₁ ] holding the valve member and the connecting cylinder member is disclosed.

The valve member [12b] includes a first member [12b ₁ ] having a valve action part (dome-like part [46c]) to the jet outlet [31], and a cam action part (reference number missing) for shut-off operation. ) Having a second member [12b ₂ ].

The cam acting portion of the second member [12b ₂ ] is in contact with the second inclined surface [f ₂ ] of the connecting cylinder member [12c] attached to the stem [11].

In addition, the first member [12b ₁ ] has a rear end portion on the right side in the drawing fitted into the innermost portion in the casing [12a ₁ ], and thereby, from the stem outlet side in the casing to the jet outlet [31]. The content space area of is specified.

Then, the cam acting portion and the second inclined plane for shutoff operation [f _2] is set to the contents of the space area inside the casing.

JP 2008-055333 A

As described above, the conventional shut-off mechanism is configured such that the valve action part and the cam action part of the component of the valve member [12b] with respect to the content outlet [31] are made of different materials,
(11) The cam action portion and the second inclined surface [f ₂ ] of the connecting cylinder member [12c] which is a counterpart of the cam action portion are set in the content space area inside the casing,
(12) The rear end portion on the right side of the first member [12b ₁ ] having the valve action portion (dome-shaped portion [46c]) is fitted to the innermost portion inside the casing [12a ₁ ], and the first member The member and the casing are integrated.

  For this reason, the contents of the valve member [12b] and the connecting cylinder member [12c] are likely to be attached to the cam action portions, and the valve member and the stem side member (connecting cylinder member) can be said to be the basis of the shut-off operation. There was a problem that this could interfere with cam operation.

Further, when the shut-off mechanism is assembled, the rear end portion of the valve member [12b] must be fitted into the innermost portion of the casing [12a ₁ ], and the efficiency of the assembly operation of the mechanism is poor. There was a point.

  Therefore, in the present invention, the valve member for shutoff operation is composed of a soft material valve / seal action part having a valve action part for the discharge hole and a seal action part for setting a content passage space in the operation button, In addition to making the first cam action part of the hard material for moving the member integral with the cam action part and the second cam action part which is a copying partner thereof, the content passing space area An object of the present invention is to make the cam operation smooth by eliminating the influence of the contents on the cam action portion of the shut-off mechanism.

  In addition, the valve member for the shut-off operation incorporated in the operation button is a fixed member which is entirely formed in a single fixed shape and can be moved uniformly without being fixed to the operation button. The purpose is to simplify the work of assembling the operation valve member into the operation button.

  In addition, the first cam action part, which is a constituent element of the valve member for shutoff operation, is set in a circumferential shape so that the direction of the copying partner with respect to the second cam action part is free. It is an object of the present invention to simplify the mounting work of the cam action part of 1 on the valve / seal action part.

  In addition, the shape of the second cam action portion is set to an arc shape corresponding to the circumferential shape of the first cam action portion, whereby the cam operation between the shut-off operation valve member and its counterpart member is performed. We are trying to stabilize and make sure.

The present invention solves the above problems as follows.
(1) A valve member (for example, a later-described valve member 3) for a content discharge hole (for example, a later-described content discharge hole 2a) in accordance with an operation mode setting operation of the operation buttons (for example, later-described operation buttons 1, 14). The discharge hole changes from a closed state until then to an open state by the movement of, and is subsequently attached to a content passage member (for example, a stem 8 described later) that can communicate with the container body in the open state. In a shut-off mechanism in which a bush-like member (for example, a bush 6, which will be described later, a sealing member 11 + a cam member 12) is interlocked with the operation button,
The valve member is
Urged by an elastic force in a direction to make the content discharge hole in the closed state,
As a whole, a valve action for the content discharge hole, a content passage space area inside the operation button up to the content discharge hole (for example, a circulating space area defined by a nozzle 2 and a check valve 4 described later) A member that exhibits a sealing action to be set and a cam action for the movement of the valve member outside the content passage space area,
A soft material valve in which a valve action part (for example, a valve action part 4a described later) exhibiting the valve action and a first annular seal action part (for example, a reverse skirt part 4b described later) exhibiting the seal action are formed. A sealing portion (for example, a check valve 4 described later);
A hard material which is integrated with the valve / seal action portion and has a first cam action portion (for example, cam copy surfaces 5c and 13b described later) formed outside the content passage space area. And a first cam action part (for example, cam follower parts 5 and 13 described later),
The bush-like member is
A second annular sealing portion (for example, a reverse skirt portion 6c, 11a described later) which is a part of the operation button and exhibits a sealing action with the peripheral surface of the cylindrical portion continuing to the content passage space area; ,
A second cam action part (for example, arc-shaped taper cam surfaces 6f and 12a described later) that is formed outside the cylindrical part and the second annular seal action part and exhibits a cam action with the first cam action part. And).
(2) In (1) above,
The valve member is
The whole is a fixed member which has a single fixed shape and can be moved uniformly without being fixed to the operation button.
(3) In the above (1) and (2),
The first cam action portion is
This is a cam copy portion set in a circumferential shape.
(4) In (3) above,
The second cam action part is
The cam surface has an arc shape that comes into contact with the cam copy portion and is tapered in the direction in which the valve member is separated from the content discharge hole.
(5) In the above (1) to (4),
The bush-like member is
A soft material sealing action part (for example, a sealing action member 11 described later) in which the second annular sealing action part is formed;
The second cam action part is formed, and is composed of a hard second cam action part (for example, a cam action member 12 described later) integrated with the seal action part.
(6) In the above (1) to (5),
The first cam acting portion is
A resin spring (for example, an elastic piece portion 13c described later) serving as the elastic force acting portion is integrally formed.

  The present invention is directed to the shut-off mechanism configured as described above, the pump-type product including the shut-off mechanism, and the aerosol-type product including the shut-off mechanism.

  In this way, the present invention provides a valve member for shut-off operation, a soft material valve / sealing part having a valve action part for the discharge hole and a seal action part for setting a content passage space in the operation button; In addition to the integral with the first cam action part made of a hard material for moving the valve member, the cam action part and the second cam action part as a copying partner thereof are used as the contents passage space. Since it is set outside the region, it is possible to eliminate the influence of the contents on the cam action portion of the shut-off mechanism and smooth the cam operation.

  Moreover, the valve member for shut-off operation incorporated in the operation button is a fixed member which is entirely formed of a single fixed shape and can be moved uniformly without being fixed to the operation button. It is possible to simplify the work of assembling the operation valve member into the operation button.

  In addition, since the first cam action part, which is a constituent element of the valve member for shutoff operation, is set in a circumferential shape, the direction of the copying partner with respect to the second cam action part is free. It is possible to simplify the mounting operation of the cam operating portion of 1 to the valve / seal operating portion.

  In addition, since the shape of the second cam action part is set to an arc shape (for example, a semicircle) corresponding to the circumferential shape of the first cam action part, the shut-off operation valve member and its counterpart The cam operation between the members can be stabilized and ensured.

  In addition, as will be described later, as a so-called sliding guide portion during movement of the valve member for shut-off operation, it is not an operation button that tends to be an inner surface portion where there is generally an uneven thickness portion and a sink due to resin molding. Since the nozzle attached to the operation button is made of an inner surface portion that is less likely to occur, the movement of the shut-off operation valve member can be stabilized and the sealing performance during the movement can be ensured. .

It is explanatory drawing which shows sectional drawing of the stationary mode of a shutoff mechanism (the 1). It is explanatory drawing which shows sectional drawing of the transition start stage to the operation mode of the shut-off mechanism of FIG. It is explanatory drawing which shows sectional drawing of the operation mode of the shut-off mechanism of FIG. It is explanatory drawing which shows the perspective view of the operating state of each cam action part of the valve member (cam follower part) with respect to the content discharge | emission hole, and the bush attached to the stem. It is explanatory drawing which shows sectional drawing of the stationary mode of a shut-off mechanism (the 2). It is explanatory drawing which shows sectional drawing of the stationary mode of a shut-off mechanism (the 3).

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

  The constituent elements (for example, the operation surface 1a) with reference numbers with alphabets used in FIGS. 1 to 6 indicate that they are part of the constituent elements (for example, the operation buttons 1) of the numeral portions of the reference numbers in principle.

1 to 6,
1 is an operation button (used in FIGS. 1 to 5),
1a is an operation surface to be operated by the user,
1b is a cylindrical upper space that accommodates a later-described valve member 2,
1c is a lower space area for accommodating a bush 6 described later,
1d is an upstream intermediate hole portion for passage of contents formed at a boundary portion between the upper space region 1b and the lower space region 1c;
1e is a cylindrical annular hanging portion provided on the ceiling of the lower space 1c so as to surround the upstream intermediate hole 1d,
A plurality of protrusions 1 f are provided so as to jump off in the circumferential direction at the lower part of the inner peripheral surface of the lower space area 1 c and prevent the operation buttons from being easily detached from the bush 6 and the cam action member 11 described later. Department,
1g is an annular stepped portion provided on the front end side of the inner circumferential surface of the upper space area 1b and engaged with an annular convex portion 2b described later;
2 is attached to the upper space 1b so as to be fitted to the front end portion of the inner peripheral surface and the like, and is symmetrical with respect to the center axis in the front-rear direction when the downstream intermediate hole 2c described later is discarded. A nozzle consisting of,
2a is a discharge hole for contents formed on the front end side of the nozzle,
2b is an annular convex portion formed on the front portion of the outer peripheral surface of the nozzle and held by the annular step portion 1g of the operation button 1.
2c is a downstream intermediate hole for passage of contents formed in the rear portion of the peripheral surface of the nozzle,
2d is a pair of annular convex portions formed on both sides in the front-rear direction of the downstream intermediate hole portion 2c and exhibiting a fitting action and a sealing action with the inner circumferential surface of the upper space area of the operation button 1.
2e is a rib-shaped portion that is formed in the front-rear direction of the inner peripheral surface near the discharge hole 2a and guides the back-and-forth movement of a check valve 4 described later,
3 is a valve member attached to the nozzle 2 (= check valve 4 + cam follower parts 5, 13),
Reference numeral 4 denotes one component of the valve member 3, which exhibits the opening / closing action of the discharge hole 2 a and the sealing action of the rear space area inside the nozzle, and is entirely a soft sheath having a symmetrical sheath shape around the central axis in the front-rear direction. Material check valve,
4a is a valve action portion formed on the front end side of the check valve,
4b is an annular reverse skirt portion formed on the rear end side of the check valve, the front end portion of which has a sealing action with the nozzle inner peripheral surface behind the downstream intermediate hole portion 2c,
Reference numeral 5 denotes the other component of the valve member 3, which exhibits a cam action with a later-described tapered cam surface 6 f, and is a hard cam follower portion having a symmetric sheath shape as a whole about the central axis in the front-rear direction. (Used in FIGS. 1-5),
5a is a central protrusion that is fitted to the inner peripheral surface of the check valve 4 on the opening side,
5b is an annular collar portion formed on the rear end side of the cam follower portion, the upper end side portion of which is in contact with the upper inner surface portion of the operation button 1,
5c is a cam copy surface formed at the front circumferential end of the annular flange portion 5b, that is, a circumferential shape that is symmetric about the central axis in the front-rear direction of the cam follower portion, and in the front-rear direction. On the other hand, the cam copy surface with a small curved surface shape whose rear side is gradually increased in diameter,
A bush 6 is attached to a stem 8 which will be described later and exhibits a sealing action between the inner peripheral surface of the annular hanging portion 1e of the operation button 1 and a cam action between the cam follower surface 5c of the cam follower portion 5 (FIG. 1). ~ Used in Figs. 4 and 6),
6a is a large-diameter lower cylindrical portion,
6b is an upper cylindrical portion having a small diameter continuing upward from the lower cylindrical portion 6a,
6c is a reverse skirt part formed on the upper end side of the upper cylindrical part 6b and exhibiting a sealing action with the inner peripheral surface of the annular hanging part 1e,
6d is an annular plate-like portion formed around the lower end portion of the upper cylindrical portion 6b (≈the upper end portion of the lower cylindrical portion 6a),
6e is a columnar cam portion formed on the outer upper part of the lower cylindrical portion 6a and the upper cylindrical portion 6b, that is, formed at a position shifted outward from the central axis in the vertical direction of the bush,
6f is formed in the cam portion 6e, and the shape in the lateral direction (= direction orthogonal to the front-rear direction) is an arc shape (substantially semicircular) contacting the substantially lower half of the cam copy surface 5c, and the rear side Arc taper cam surface (see Fig. 4)
6g is continuously formed above the arcuate tapered cam surface 6f with a width larger than the outer peripheral circular diameter of the annular flange 5b of the cam follower portion 5, and the cam portion 6e (bush 6) is inserted into the annular flange from below. In other words, a notched part that acts as a guided part (see Fig. 4),
7 is a coil spring (used in FIGS. 1 to 5) provided between the rear concave portion of the cam follower portion 5 and the rear inner peripheral surface of the operation button 1 to urge the valve member 3 forward.
8 is strongly fitted to the lower cylindrical portion 6a of the bush 6 and is elastically biased upward (not shown), and in conjunction with the downward pressing operation of the operation button 1, a known pump mechanism or valve mechanism Stem to operate,
9 is a cap attached to the opening of the container body (not shown);
10 is a housing attached to the cap 9 to act as a moving space area for the stem 8 and a storage / passage area for the container contents;
Respectively.

In FIG.
11 is a vertical cylindrical and soft sealing action member for sealing use when the bush 6 is divided into two parts, a sealing action part and a cam action part,
11a is a reverse skirt portion similar to the reverse skirt portion 6c,
11b is an annular plate-like portion similar to the annular plate-like portion 6b,
12 is a cam member made of hard material for use as a cam when the bush 6 is divided into two members, a seal action part and a cam action part,
12a is an arcuate taper cam surface similar to the arcuate taper cam surface 6f;
12b is formed in a part in the circumferential direction of the inner peripheral surface of the cylindrical cam action member, and engages with the outer end portion of the annular plate-like portion 11b to prevent the seal action member 11 from being detached from the cam action member. Projections to do,
Respectively.

In FIG.
Reference numeral 13 denotes a cam follower portion that exhibits an elastic action that biases the check valve 4 forward in addition to the cam action and the sheath shape similar to those of the cam follower part 5.
13a is an annular collar similar to the annular collar 5b,
13b is a cam copy surface similar to the cam copy surface 5c,
13c is a shape part that is only different from the cam follower part 5, and a plurality of elastic pieces (resin springs) formed in the front-rear direction by integral molding with the cam follower part in a concave part surrounded by the annular flange part 13a,
14 is an operation button when the cam follower unit 13 is used;
14a is a shape portion that is different from the operation button 1 only, and receives the free end portion of the elastic piece portion 13c of the cam follower portion 13, so that it is formed in a conical shape in the front-rear direction formed on the rear inner peripheral surface of the operation button by integral molding. Taper surface,
14b is an upstream intermediate hole similar to the upstream intermediate hole 1d,
14c is an annular hanging portion similar to the annular hanging portion 1b,
Respectively.

  Here, the check valve 4 and the sealing member 11 are made of a soft material such as plastic or rubber made of low-density polyethylene, high-density polyethylene, rubber, elastomer, and the like, and the cam followers 5 and 13 and the cam member. 12 is a polyacetal, polypropylene, polycarbonate, ABS, polybutylene terephthalate, polyamide, polyethylene terephthalate, poly-1,4-cyclohexylenedimethylene terephthalate / isophthalate copolymer (PCTA: a saturated polyester resin, US Eastman Chemical) For example, plastic.

  Further, the operation buttons 1, 14, nozzle 2, bush 6, stem 8, cap 9, and housing 10 are made of plastic such as polypropylene, polyethylene, polyacetal, polyamide, polybutylene terephthalate, and the coil spring 7 is made of metal. Made of plastic.

The basic features of the illustrated shut-off mechanism are as follows:
(21) The valve member 3 for shutoff operation is
A soft check valve 2 that opens and closes the discharge hole 2a and seals the inner space of the nozzle 2;
Cam followers 5 and 13 made of hard material exhibiting a cam action between the bush 6 and the tapered cam surfaces 6f and 12a of the cam action member 12;
It is configured in a form that integrates each member of
(22) The cam followers 5c and 13b of the cam followers 5 and 13 and the arcuate tapered cam surfaces 6f and 12a of the bush 6 and the cam action member 12 are respectively outside the inner rear space of the nozzle 2, that is, the passage space for the contents. Set outside the area,
(23) Furthermore, the valve member 4 is set in the operation buttons 1 and 14 in a free state, so that it is not fixed.
That is.

Also, as clearly shown in FIG.
(31) The cam action portions of the cam followers 5 and 13 are
The cam follower surface 5c having a tapered shape that is set to have a circumferential shape that is symmetric about the central axis in the front-rear direction of the cam follower portion, and whose rear side sequentially increases in diameter with respect to the front-rear direction. Set in the form of 13b,
(32) The cam copy surfaces 5c and 13b are received by a substantially semicircular arcuate tapered cam surface 6f.
That is.

Furthermore, as shown in FIG.
(41) A bush attached to the stem 8 and exhibiting a sealing action between the operation button 1 and the inner peripheral surface of the annular hanging portion 1e and a cam action between the cam follower portion 5 and the cam copy surface 5c,
A sealing member 11 made of a soft material for sealing use;
A cam action member 12 made of a hard material for cam use;
It is configured in a form that integrates each member of
That is.

Furthermore, as shown in FIG.
(51) Instead of the coil spring 7 (FIGS. 1 to 5) for urging the valve member 3 forward,
An elastic piece (resin spring) 12c in the front-rear direction integrally formed with the cam follower 13;
A conical tapered surface 14a in the front-rear direction integrally formed with the operation button 14,
Is used.

The operation of each illustrated shut-off mechanism is roughly as follows.
(61) The user pushes down the operation surface 1a of the operation button 1 in the still mode (see FIG. 1).
(62) The cam follower surfaces 5c and 13b and the bush 6 and the cam action of the cam follower portions 5 and 13 which are part of the valve member 3 in accordance with the downward movement of the operation button 1 and the valve member 3 interlocked with the operation button 1 Based on the copying action of the member 12 with the arcuate tapered cam surfaces 6f and 12a, the valve member 3 moves backward in a manner that resists the elastic force of the coil spring 7 and the elastic piece 13c. That is, the discharge hole 2a of the nozzle 2 shifts to an open state (see FIG. 2).
At the time of the retreat, the bush 6, the sealing member 11, and the cam member 12 that are integral with the stem 8 do not move downward. This is because the known elastic force for urging the stem 8 upward is sufficiently larger than that of the coil spring 7 and the elastic piece 13c.
(63) The lower end portions of the annular hanging portions 1e and 14c of the operation buttons 1 and 14 come into contact with the annular plate-like portions 6d and 11b of the bush 6 and the sealing member 11, and thereafter the operation buttons 1, bush 6 and seal The action member 11, the cam action member 12, and the stem 8 are moved downward together.
(64) The known valve mechanism is opened by the downward movement of the stem 8, and the contents on the container body side are roughly defined as “the inner passage of the stem 8 -the upstream intermediate hole portion 1 d -the downstream intermediate hole portion 2 c -the nozzle 2. It discharges | emits to external space through the space area-release hole 2a "between an internal peripheral surface and the outer peripheral surface of the non-return valve 4 (refer FIG. 3).

  In addition, FIG. 3 presupposes the case of a pump type product. In the case of an aerosol type product, when the operation button 1 is substantially lowered, that is, when the lower surface portion of the annular plate-like portion 6d of the bush 6 is in contact with the upper end portion of the inner cylindrical portion of the cap 9, for example, The stem hole portion for passing an object is opened, and the operation mode is shifted.

When the user stops pressing the operation button 1, each illustrated shut-off mechanism exhibits the following operation (as opposed to when the operation mode is set).
(71) First, the operation buttons 1 and 14, the bush 6, the sealing member 11, and the cam member 12, together with the stem 8, remain in the stationary mode position by a known strong elastic return force against the stem while the discharge hole 2 a is open. Move up. By this upward movement, the valve mechanism on the stem side is closed, and the content inflow operation from the container body side to the internal passage of the stem 8 is completed.
(72) Subsequently, the valve member 3 composed of the check valve 4 and the cam followers 5 and 13 returns to the initial position in the stationary mode by the elastic force of the coil spring 7 and the elastic piece 13c, and the discharge hole 2a is closed. Set to.
(73) With the return of the valve member 3, the operation buttons 1 and 14 also copy the cam copy surfaces 5c and 13b of the cam followers 5 and 13 and the arcuate tapered cam surfaces 6f and 12a of the bush 6 and the cam action member 12. It moves up by the action and returns to the still mode.

The assembly work of the illustrated shut-off mechanism is
(81) First, the cam followers 5 and 13 are fitted to the check valve 4 to form the valve member 3, and in the case of the shut-off mechanism of FIGS. 1 and 5, the coil spring 7 is attached to the cam follower 5;
(82) Next, the valve member 3 or the like is inserted into the nozzle 2 from its rear opening,
(83) Next, the nozzle 2 is inserted into the operation buttons 1 and 14 from the front opening,
(84) Next, the bush 6 or the integral member of the sealing member 11 and the cam member 12 fitted to the ring plate-like portion 11b is inserted into the operation buttons 1 and 14 from the lower opening thereof. Thus, the cam follower surfaces 5c and 13b of the cam follower portions 5 and 13 are set in a state facing or abutting against the arcuate tapered cam surfaces 6f and 12a of the bush 6 and the cam action member 12,
It becomes the procedure.

  At the time of this assembly, the vertical relationship of the cam follower portions 5 and 13 having the circumferential cam copy surfaces 5c and 13b is arbitrary. That is, the operator only needs to insert the cam follower into the opening of the check valve 4 without confirming the rotational position relationship between the cam follower and the check valve 4.

  Further, when the coil spring 7 is attached or when the valve member 3 (and the coil spring 7) is attached to the nozzle 2, this vertical relationship can be said to be arbitrary. This is because the nozzle 2 and the check valve 4 as well as the coil spring 7 have the above-described symmetrical shapes.

  Even if the downstream intermediate hole 2c of the nozzle 2 after assembly of the shut-off mechanism is set at a position not facing the upstream intermediate holes 1d and 14b of the operation buttons 1 and 14, the upstream intermediate hole 2c from the stem 8 It does not hinder the discharge operation of the contents flowing into the hole.

  The contents flowing into the upstream intermediate hole portions 1d and 14b pass through a circular space set between the pair of ring-shaped protruding portions 2d of the nozzle 2 and the inner peripheral surface of the upper space area of the operation button, and It is because it moves to the downstream intermediate hole 2c of the nozzle.

  The assembled shutoff mechanism is used by being attached to various pump containers or aerosol containers.

It goes without saying that the present invention is not limited to the above embodiment, and may be as follows, for example.
(91) A plurality of downstream intermediate hole portions 2c of the nozzle 2 are provided in the circumferential direction.
(92) The soft check valve 4 and the hard cam followers 5 and 13 are formed as one member by so-called two-color molding or insert molding.
(93) The cam followers 5 and 13 and the bush 6 and the cam action member 12 have various shapes.
(94) On the inner end portions of the upper surfaces of the annular plate-like portions 6d and 11b of the bush 6 and the sealing member 11, when the contents of the operation buttons 1 and 14 are released, the annular hanging portions 1e and 14c are moved downward. In other words, an annular groove portion is formed as a passage.
(95) The soft material sealing member 11 and the hard material cam member 12 are formed as one member by so-called two-color molding or insert molding.

  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 can be in various forms such as liquid, cream, gel, etc. Examples of ingredients blended in the contents include powdered substances, oil components, alcohols, interfaces Activators, polymer compounds, active ingredients according to each application, water and the like.

  As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

  As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

  Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

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

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, antibacterial agents such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Coolants such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

  Further, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. can be used.

  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. .

1: Operation buttons (used in FIGS. 1 to 5)
DESCRIPTION OF SYMBOLS 1a: Operation surface 1b: Upper space area 1c: Lower space area 1d: Upstream intermediate hole 1e: Cylindrical annular hanging portion 1f: Plural protrusions 1g: Annular step 2: Cylindrical nozzle 2a: Contents Discharge hole 2b: annular convex portion 2c: downstream intermediate hole portion 2d: pair of annular convex portions 2e: rib-shaped portion 3: valve member (= check valve 4 + cam follower portions 5, 13)
4: Soft check valve 4a: Valve action portion 4b: Annular reverse skirt portion 5: Hard cam follower portion (used in FIGS. 1 to 5)
5a: central protrusion 5b: annular flange 5c: tapered cam copy surface 6: bush (used in FIGS. 1 to 4 and 6)
6a: Large-diameter lower cylindrical portion 6b: Small-diameter upper cylindrical portion 6c: Reverse skirt portion 6d: Ring plate-like portion 6e: Columnar cam portion 6f: Arc shape (substantially semicircular) taper cam surface 6g: Notch Shape part 7: coil spring (used in FIGS. 1 to 5)
8: Stem 9: Cap 10: Housing

(The following 11-12b are used only in FIG. 5)
11: Soft material sealing member 11a: Reverse skirt portion 11b: Ring plate portion 12: Hard material cam member 12a: Arc-shaped taper cam surface 12b: Projection

(The following 13 to 14c are used only in FIG. 6)
13: Cam follower part 13a: Annular collar part 13b: Cam copying surface 13c: Elastic piece part (resin spring)
14: Operation button 14a: Conical tapered surface 14b: Upstream intermediate hole portion 14c: Annular hanging portion

Claims (8)

In accordance with the operation mode setting operation of the operation button, first, the content discharge hole changes from the closed state to the open state by the movement of the valve member with respect to the content discharge hole, and then the container main body In a shut-off mechanism in which a communicable content passage member and a bush-like member attached thereto are interlocked with the operation button,
The valve member is
Urged by an elastic force in a direction to make the content discharge hole in the closed state,
Overall, the valve action for the content discharge hole, the sealing action for setting the content passage space area inside the operation button to the content discharge hole, and the valve member outside the content passage space area. A member that exhibits a cam action for movement,
A soft material valve / seal acting part formed with a valve acting part exhibiting the valve action and a first annular seal acting part exhibiting the sealing action,
A first cam action portion made of a hard material, which is integrated with the valve / seal action portion and has a first cam action portion exhibiting the cam action formed on the outside of the content passage space area; ,
The bush-like member is
A second annular sealing action portion that is part of the operation button and exhibits a sealing action with the peripheral surface of the cylindrical portion that continues to the space for passing the contents;
A second cam action portion that is formed outside the cylindrical portion and the second annular seal action portion and exhibits a cam action with the first cam action portion;
A shut-off mechanism characterized by that. The valve member is
The whole is a fixed member which consists of a single fixed shape and can move uniformly without being fixed to the operation button.
The shut-off mechanism according to claim 1. The first cam action portion is
It is a cam copy part set to a circumferential shape,
The shut-off mechanism according to claim 1 or 2, wherein The second cam action part is
The cam surface is formed in a circular arc shape that comes into contact with the cam copy portion, and a cam surface set in a taper shape along the separating direction of the valve member with respect to the content discharge hole.
The shut-off mechanism according to claim 3. The bush-like member is
A soft material sealing portion formed with the second annular sealing portion;
A second cam action portion made of a hard material, wherein the second cam action portion is formed and integrated with the seal action portion.
The shut-off mechanism according to any one of claims 1 to 4, wherein the shut-off mechanism is provided. The first cam acting portion is
A resin spring is integrally molded as the elastic force acting portion.
The shut-off mechanism according to any one of claims 1 to 5, wherein the shut-off mechanism is provided. The shut-off mechanism according to any one of claims 1 to 6 is provided, and the contents are accommodated.
This is a pump-type product. The shut-off mechanism according to any one of claims 1 to 6 is provided, and the gas for injection and contents are accommodated.
Aerosol type product characterized by that.

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