JP4899216B2 - Aerosol container - Google Patents

Description

  The present invention relates to an aerosol container capable of simplifying a residual gas extraction operation.

For example, in Patent Document 1, after removing a protector ring that is assembled and fixed in an undercut shape to the upper end of an aerosol container body, a cover cap is put on and the nozzle head is kept in the pushed down position so that residual gas is extracted. An invention relating to an aerosol container as described above is described.
JP 2001-2154 A

  In the above aerosol container, there is a problem that the protector ring is not easy to remove, and therefore it is necessary to attach a tear strip for easy removal to the protector ring and a peeling ring, and the structure becomes complicated. is there.

  Therefore, a technical problem of the present invention is to realize a mechanism capable of easily removing residual gas with a simple structure.

The configuration of the present invention for solving the problems of the present invention is as follows.
A nozzle head having a container main body, a nozzle head fitted to the stem of the container main body and having a forward outlet, and an upper end of an outer cylinder to be fitted and attached to the upper end of the container main body via an inner flange-shaped top wall Is inserted and the guide cylinder that functions as a guide for the upward and downward displacement of the nozzle head is suspended, and the outer cylinder and the nozzle head of the guide cylinder are formed with a notch through which the ejected liquid passes at a position facing the ejection port. In an aerosol container having a cap body,
Forming a movable piece surrounded by a slit in a portion from the upper end of the guide tube of the cap body to the top wall so as to be rotatable around a pair of connecting pieces provided on both sides;
The lower limit of the nozzle head relative to the cap body is determined, and the nozzle head is attached to the lower end portion of the guide cylinder so as to be removable from the container body together with the cap body,
With the cap body removed from the container main body together with the nozzle head, the lower end of the movable piece is displaced upward with the connecting piece portion as a fulcrum by pushing the upper end of the movable piece at the lower limit position of the nozzle head with respect to the cap body. To be configured to be locked to the top of the nozzle head,
It is configured that the residual gas can be extracted by reattaching the cap body and the nozzle head to the container body in this locked state,
It is in.

  According to the above configuration of the present invention, in normal use, the nozzle head is pressed with a fingertip and pushed down along the guide tube of the cap body, whereby the stem of the container body is lowered, the aerosol valve is opened, and the liquid content is discharged. It can be ejected from a spout.

  In the operation of extracting the residual gas after use, first the cap body is removed from the container body, but due to the action effect of the locking protrusion attached to the lower end of the guide cylinder, the nozzle head is inserted through the guide cylinder, A nozzle head can be removed from a container main body with a cap body.

  In this way, the cap body is removed from the container body while the nozzle head is inserted into the guide tube, and the nozzle head is lowered to the lower limit position determined by the locking protrusion in the guide tube, and the upper end of the movable piece is When pushed in, the movable piece rotates with the connecting piece portion serving as a fulcrum, and its lower end can be displaced upward and locked to the top of the nozzle head.

  When the cap body is reattached to the container body together with the nozzle head in such a locked state, that is, in a state where the nozzle head is fixed at a position where it is displaced downward with respect to the guide tube, the stem is fixed in a state where the stem is displaced downward. The residual gas can be extracted.

  Also, in the aerosol container with the above configuration, one end cap body and nozzle head are removed, the movable piece is locked to the top of the nozzle head, reattached, and the residual gas extraction operation is performed. It is possible to prevent an erroneous operation such as an operation for removing the residual gas.

  Another configuration of the present invention is a lower limit in the pressing operation of the nozzle head, so that the rotational upward displacement of the lower end portion due to the pressing operation of the upper end portion of the movable piece is disabled by the side wall of the nozzle head. The lower end is configured to be located sufficiently below the outer peripheral edge of the top of the nozzle head.

  The above configuration is such that the movable piece is not locked to the top of the nozzle head due to an erroneous operation in a normal use mode, and even if the upper end of the movable piece is accidentally pushed by the above configuration, the side wall of the nozzle head is used. Since the rotational upward displacement of the lower end portion of the movable piece is prevented, it is possible to more reliably prevent an erroneous operation such as an operation for removing the residual gas by mistake during normal use.

  When the lower end of the movable piece is positioned slightly below the outer peripheral edge of the top of the nozzle head, if the movable piece itself is easily deformed due to its thin wall, etc. Since it stops, it is necessary to set how much the lower end of the movable piece is positioned in consideration of the deformability of the movable piece. I am trying to say.

  According to another configuration of the present invention, an abutting portion that determines the limit of the rotational downward displacement of the upper end portion of the movable piece with the connecting piece portion as a fulcrum is attached to the exterior cylinder.

When the upper biasing force of the stem is relatively large, the lower end of the movable piece is further rotated and displaced by the action of this force when the cap body and the nozzle head are remounted and locked to the top of the nozzle head. May be displaced further upward, the stem will rise and the remaining gas may not be extracted sufficiently.
By setting the limit of the rotational displacement of the movable piece by the contact portion with the above configuration, the locking effect of the lower end portion of the movable piece can be prevented from being impaired.

  According to another configuration of the present invention, when the upper end of the movable piece is pushed in, the lower end surface of the movable piece slides on the outer periphery of the top of the nozzle head with the connecting piece portion as a fulcrum. Thus, it is configured to be engaged with the top of the nozzle head.

  With the above-described configuration, the lower end surface of the movable piece is slid on the outer peripheral edge of the top of the nozzle head with the connecting piece portion as a fulcrum, and can be smoothly displaced upward and locked over the top of the nozzle head. In such a locked state, the lower end edge of the movable piece comes into contact with the top, so that the unlocking of the lower end can be reliably prevented.

  According to another configuration of the present invention, the top of the nozzle head is formed in a concave shape from the outer peripheral edge to the central portion, and the outer peripheral edge protrudes in an edge shape.

  With the above configuration, the lower end of the movable piece can be hooked to the outer peripheral edge protruding in an edge shape in the locked state, and the locked state to the top of the movable piece can be more reliably maintained. it can.

  In another configuration of the present invention, movable pieces are formed on the left and right sides of the cap body.

  With the above configuration, the top of the nozzle head can be more reliably locked by the pair of movable pieces formed on the left and right sides of the cap body.

Since the present invention has the above-described configuration, the following effects can be obtained.
That is, the nozzle head is removed from the container body together with the cap body, the movable piece is rotated with the connecting piece portion as a fulcrum, and the lower end thereof is locked to the top of the nozzle head. At the same time, when it is reattached to the container body, the stem is fixed in a downwardly displaced state, the residual gas can be extracted, and the residual gas can be easily extracted with a simple structure called a movable piece.

  The lower end of the movable piece is moved from the outer peripheral edge of the top of the nozzle head so that the upper end of the movable piece cannot be rotated upward by the side wall of the nozzle head at the lower limit in the pressing operation of the nozzle head. In the case of a structure that is located sufficiently below, the upper side of the movable piece is prevented from rotating upward by the side wall of the nozzle head, so that the residual gas may be accidentally removed during normal use. Can be prevented more reliably.

  When the outer cylinder is provided with a contact piece that determines the limit of the rotational downward displacement of the upper end of the movable piece with the connecting piece as a fulcrum, even when the upper biasing force of the stem is relatively large By setting the limit of the rotational displacement of the movable piece by the contact portion, it is possible to prevent the locking effect of the lower end portion of the movable piece from being impaired.

  In the structure in which the lower end surface of the movable piece is displaced upward in the state of sliding on the outer periphery of the top of the nozzle head and locked to the outer periphery of the top of the nozzle head, the lower end surface of the movable piece is While sliding on the outer peripheral edge of the top of the nozzle head, it can be smoothly displaced upward and locked over the top of the nozzle head, and the lower end edge of the movable piece can be brought into contact with the top to move the movable piece. Can be surely prevented.

  If the outer periphery of the nozzle head has a concave shape from the outer periphery to the center, and the outer periphery protrudes like an edge, the outer periphery where the lower end of the movable piece protrudes like an edge when locked It can be in a state of being caught by the part, and the locked state to the top of the movable piece can be more reliably maintained.

  In the case where the movable pieces are formed on the left and right sides, the top of the nozzle head can be more reliably locked by the pair of left and right movable pieces.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described along examples with reference to the drawings.
1 to 7 show an embodiment of an aerosol container according to the present invention. FIG. 1 is a perspective view, FIG. 2 is a longitudinal side view, FIG. 3 is a longitudinal front view, and FIG.
This container is composed of a container body 1, a nozzle head 11, and a cap body 21.

  The container body 1 has an annular rim 3 at the upper end of a cylindrical body with a bottom, and a stem 2 connected to an aerosol valve (not shown) is erected at the center of the top.

  The nozzle head 11 has a long cylindrical outer cylinder 14, and a cylindrical fitting cylinder 13 that is fitted on the stem 2 is suspended from the top 12 of the outer cylinder 14 inside the outer cylinder 14. Yes. In addition, at the front portion of the nozzle head 11, a part of the wall of the outer cylinder 14 is recessed in a truncated cone shape, and is integrally connected to the wall of the fitting cylinder 13, and the fitting cylinder 13 is connected to the integral connection portion. A through horizontal hole 13 a that communicates with the nozzle 15 is formed and is referred to as a spout 15.

  The top portion 12 is inclined downward from the front portion to the rear portion, and is shaped to be recessed from the front end portion and the left and right end portions to the center portion, so that the nozzle head 11 can be easily pushed down by the fingertip. . In addition, a pair of guide protrusions 16 are provided in the vicinity of the lower ends of the left and right side surfaces of the outer cylinder 14.

  The cap body 21 has a cylindrical outer cylinder 22 that fits and attaches to the upper end of the container body 1, and the outer cylinder 14 of the nozzle head 11 passes from the upper end of the outer cylinder 22 through an inner flange-shaped top wall 23. A long cylindrical guide cylinder 31 is provided in a hanging manner, which is loosely fitted to the outside and functions as a guide for the downward and upward displacement.

  In addition, circular notches 22 a and 31 a through which the jet liquid passes are formed at positions facing the wall of the outer tube 22 and the jet port 15 of the nozzle head 11 of the guide tube 31 at the front part. In addition, a pair of guide slits 32 that engage with the guide protrusions 16 of the nozzle head 11 are formed upward from the lower ends of the left and right side portions of the guide cylinder 31.

  Further, in this embodiment, a concave portion 24 is formed at the rear portion of the cap body 21 so that the top wall 23 is recessed downward, and by using this concave portion 24, a finger is placed from the rear of the aerosol container to the top portion of the nozzle head 11. 12 so that the pressing operation can be easily performed.

A pair of left and right engaging projections 33 project from the lower end of the inner peripheral surface of the guide cylinder 31 and the rear position of the guide slit 32. The locking projection 33 is engaged with the lower end surface of the outer cylinder 14 of the nozzle head 11 to determine the lowering limit of the nozzle head 11 with respect to the guide cylinder 31.

In addition, a pair of connecting pieces 37 formed on both sides of the guide cylinder 31 on both the left and right sides of the cap body 21 from the upper end portion to the top wall 23 are pivotally pivoted around a pair of connecting pieces 37 (rotating shaft). A pair of movable pieces 36 surrounded by 38 are formed.
In addition, a pair of left and right ridges 25 are formed in the longitudinal direction on the inner peripheral surface of the outer cylinder 22 so as to function as a contact portion that determines the limit of the rotational downward displacement of the upper end portion of the movable piece 36. Yes.

Next, a general assembly method of the container body 1, the nozzle head 11, and the cap body 21 described above will be described. First, the nozzle head 11 is inserted from below the guide tube 31 with the guide protrusion 16 aligned with the guide slit 32.
When one end is inserted, the nozzle head 11 is held in the guide tube 31 without being easily removed by the locking function of the locking protrusion 33.

  Then, with the nozzle head 11 inserted through the guide cylinder 31 as described above, the cap body 21 is mounted on the upper end portion of the container body 1 together with the nozzle head 11. In this mounted state, the fitting cylinder 13 of the nozzle head 11 is externally fitted to the stem 2 so as to be able to be pushed down using the step portion 13b, and the lower end of the outer cylinder 22 is engaged with the annular rim 3 of the container body 1. Fit into. (See Figs. 2 and 3)

2 and 3, when the top 12 of the nozzle head 11 is pushed down with the fingertip, the stem 2 is lowered (see FIG. 5), the aerosol valve is opened, and the stem 2 and the fitting cylinder 13 are opened. Then, the content liquid is ejected from the ejection port 15 through the through lateral hole 13a.
This pressing operation can be achieved smoothly by the locking of the guide protrusion 16 to the guide slit 32.

  Here, as shown in FIG. 5, at the lower limit position of the nozzle head 11, the lower end of the movable piece 36 is located sufficiently below the outer peripheral edge 12e of the top portion 12 of the nozzle head 11, so that such normal use is performed. In this state, the lower end portion of the movable piece 36 cannot be locked to the top portion 12 to prevent erroneous operation.

Next, an operation for extracting the residual gas when the content liquid is used will be described.
First, the nozzle head 11 together with the cap body 21 is removed from the container body, and the nozzle head 11 is lowered to the lower limit with respect to the cap body 21 determined by the locking of the lower end surface of the outer cylinder 14 to the locking projection piece 33. As shown in FIG. 6, the movable piece 36 is pushed in the vicinity of the top wall 23 (see the white arrow in FIG. 6), and the lower end portion of the movable piece 36 is rotated around the pair of connecting pieces 37 as fulcrums (rotating shafts). The lower end of the nozzle head 11 is displaced above the outer peripheral edge 12e of the top 12 of the nozzle head 11.

  Here, in the present embodiment, the lower end of the movable piece 36 is positioned outside the outer peripheral surface of the guide cylinder 31, and the movable piece in the vicinity of the top wall 23 is arranged by the arrangement of the movable piece 36. By the pushing operation of 36, the lower end surface of the movable piece 36 can be smoothly displaced upwardly in a rotating manner (refer to the arc of the dashed line in FIG. 6) while sliding on the outer peripheral edge 12e of the top 12 of the nozzle head 11. In addition, the movable piece 36 can be prevented from being easily unlocked by bringing the lower end corner portion 36c into contact with the outer peripheral edge 12e and engaging the top portion 12.

  In addition to the configuration in which the lower end surface of the movable piece 36 is slid on the outer peripheral edge 12e of the top portion 12 of the nozzle head 11 as described above, the lower end portion of the movable piece 36 is utilized by utilizing the elastic deformability of the lower end portion. It can also be set as the structure which climbs over the outer periphery 12e vicinity, and is latched. Further, the lower end portion of the movable piece 36 is displaced upward without contacting the outer peripheral edge 12e, and the elastic restoration to the original position is suppressed by partial permanent deformation of the connecting piece 37 portion, and the engagement with the top portion 12 is performed. It can also be set as the structure which hold | maintains a stop function.

  In the present embodiment, the nozzle head 11 has a concave shape from the outer peripheral edge 12e to the center of the top 12 of the nozzle head 11, and the outer peripheral edge 12e protrudes in an edge shape. It is also possible to prevent the movable piece 36 from being easily unlocked in such a state that the lower end portion of the movable piece 36 is caught on the outer peripheral edge 12e protruding in the edge shape.

  When the nozzle head 11 is reattached to the container body 1 together with the cap body 21 with the lower end portion of the movable piece 36 locked to the top portion 12 of the nozzle head 11 as described above, as shown in FIG. 2 is fixed while being displaced downward, and the residual gas can be extracted.

  Here, when the upward biasing force of the stem 2 is relatively large, the lower end portion of the movable piece 36 locked to the top portion 12 of the nozzle head 11 is further displaced upward by the action of this force, and the stem 2 is greatly raised. Although there is a possibility that the residual gas cannot be sufficiently extracted, the upper ends of the movable pieces 36 are formed on the tops of the pair of left and right ridges 25 which are formed on the inner peripheral surface of the outer tube 22 and function as contact portions. The edge abuts and a limit of rotational displacement is set with the connecting piece 37 of the movable piece 36 as a fulcrum, so that the locking effect of the lower end is not impaired.

As mentioned above, although embodiment of this invention was described along the Example, the aspect of this invention is not limited to these Examples.
For example, the nozzle head 11 and the cap body 21 can have various shapes. In the above embodiment, the nozzle head 11 has a double cylinder shape of the fitting cylinder 13 and the outer cylinder 14, but the outer cylinder. A configuration without 14 is also possible.
Moreover, in the said Example, although the circular notches 22a and 31a for passage of a jet liquid are formed in the cap body 21, a recessed part is formed so that the top wall 23 may be dented below in the front part. It can also be a missing part.

  As described above, the aerosol container of the present invention has a simple structure and can easily perform a residual gas extraction operation, and is expected to be used in a wide range of applications.

(A) is a perspective view of one Example of the aerosol container of this invention, (b), (c) is a perspective view of a cap body and a nozzle head, respectively. It is a vertical side view of the container of FIG. It is a vertical front view of the container of FIG. It is a top view of the container of FIG. It is a vertical front view which shows the state which pushed down the nozzle head with the container of FIG. It is a longitudinal front view which shows the process in which a nozzle head is removed with the cap body of the container of FIG. 1, and a movable piece is displaced. FIG. 7 is a longitudinal sectional front view showing a state in which the nozzle head is mounted on the container body together with the cap body in the state of FIG. 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Container body 2; Stem 3; Annular rim 11; Nozzle head 12; Top part 12e; Outer peripheral edge 13; Fitting cylinder 13a; Cap body 22; exterior cylinder 22a; notch 23; top wall 24; recess 25; ridge 31; guide cylinder 31a; notch 32; guide slit 33; locking protrusion 36; movable piece 36c; Connecting piece 38; slit

Claims (6)

A container head (1), a nozzle head (11) fitted to the stem (2) of the container body (1) and having a spout (15) in front, and fitted to the upper end of the container body (1) The nozzle head (11) is inserted through the inner wall-shaped top wall (23) at the upper end of the outer cylinder (22) to be mounted, and the guide fulfills the function of guiding the downward and upward displacement of the nozzle head (11). A cap that hangs down the cylinder (31) and forms a notch through which the jet liquid passes at a position of the outer cylinder (22) and the guide cylinder (31) facing the outlet (15) of the nozzle head (11). In an aerosol container having a body (21), a pair of connecting pieces (37) provided on both sides are supported on a portion from the upper end of the guide tube (31) to the top wall (23) of the cap body (21). The movable piece (36) surrounded by the slit (38) is formed so as to be rotatable, and the lowering limit of the nozzle head (11) with respect to the cap body (21) is determined, and the nozzle head (11) is the cap body. ( 21) is attached to the lower end of the guide cylinder so as to be removable from the container body (1), and the cap body (21) is removed from the container body (1) together with the nozzle head (11). In this state, the lower end of the nozzle head (11) is rotated around the connecting piece (37) as a fulcrum by pushing the upper end of the movable piece (36) at the lower limit position with respect to the cap body (21) of the nozzle head (11). To the top (12) of the nozzle head (11), and the cap body (21) and the nozzle head (11) in the locked state are reattached to the container body (1). An aerosol container characterized in that the residual gas can be extracted. The movable piece so that the upper end of the movable piece (36) cannot be rotated upward by the side wall of the nozzle head (11) at the lower limit in the pressing operation of the nozzle head (11). The aerosol container according to claim 1, wherein the lower end of (36) is located sufficiently below the top (12) outer peripheral edge (12e) of the nozzle head (11). The aerosol container according to claim 1 or 2, wherein the outer cylinder (22) is provided with a contact portion for determining the limit of the rotational downward displacement of the upper end portion of the movable piece (36) with the connecting piece (37) as a fulcrum. . By pushing the upper end of the movable piece (36), the lower end surface of the movable piece (36) slides on the top (12) outer peripheral edge (12e) of the nozzle head (11) with the connecting piece (37) portion as a fulcrum. The aerosol container according to claim 1, 2, or 3, wherein the aerosol container is configured to be displaced upward in a moving state and locked to the top (12) of the nozzle head (11). The top (12) of the nozzle head (11) has a concave shape from the outer peripheral edge (12e) to the center, and the outer peripheral edge (12e) protrudes in an edge shape. The aerosol container described. The aerosol container according to claim 1, 2, 3, 4 or 5, wherein movable pieces (36) are formed on both the left and right sides of the cap body (21).

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