JP6099319B2 - Mixed aerosol container - Google Patents

Description

  The present invention relates to a mixed aerosol container that mixes two contents before use and discharges the mixed contents when used.

  2. Description of the Related Art Conventionally, an external container that contains a first content and an internal container that contains a second content and is arranged in the external container are mixed with the first content and the second content before use. A mixed-type aerosol container that discharges mixed contents when used is known (see, for example, Patent Document 1). Typical examples of the mixed aerosol container include urethane resin paints, urethane foams, two-component paints such as epoxy resins, and hair dyes.

  In Patent Document 1, a first discharge mechanism that discharges the first contents in the outer container by opening the valve and a second discharge mechanism that discharges the second contents in the inner container by opening the valve are disclosed. A two-discharge mechanism is provided on one end side of the outer container. Between the first discharge mechanism and the second discharge mechanism, a boss portion of the housing of both discharge mechanisms is provided. The boss is provided with a hole. A rod is press-fitted into the hole, and the rod and the hole constitute holding means. The holding means is configured so that it cannot return to the original position once the rod is pressed downward.

  When the first discharge mechanism is opened, the rod is pressed downward, and the second discharge mechanism is also opened by being pushed by the rod. Since the rod is configured so as not to return to its original position once pressed downward by the holding means, the second discharge mechanism remains open even when the first discharge mechanism is closed. . As a result, all the second contents in the inner container are discharged into the outer container and mixed with the first contents. If the first discharge mechanism is opened after the first contents and the second contents are sufficiently mixed, the mixed contents are discharged.

  Here, the mixed-type aerosol container configured as in Patent Document 1 includes a holding unit for maintaining the valve opening state of the second discharge mechanism in addition to the first and second discharge mechanisms. For this reason, there exists a problem that the structure of the container for mixed type aerosols becomes complicated, and manufacturing cost increases.

  Therefore, there is also known a mechanism in which the first discharge mechanism for discharging the first contents in the outer container is left as it is, and a mixing mechanism for discharging the second contents in the inner container into the outer container is provided at the lower end of the outer container. (For example, see Patent Documents 2 and 3). The mixing mechanism of Patent Documents 2 and 3 includes a protruding member that protrudes downward from a hole provided in the bottom lid of the outer container. Then, by pushing the projecting member into the outer container, the projecting member opens a hole in the inner container, and the second contents in the inner container are discharged into the outer container, and the first contents and the second contents Mix.

  However, in this case, since the rod protrudes downward from the bottom of the external container, the mixed aerosol container cannot be maintained upright. Therefore, it is necessary to attach a cap to the lower end of the outer container so that the mixed aerosol container can maintain an upright state.

Japanese Utility Model Publication No. 63-136749 Japanese Patent No. 4290297 Japanese Patent No. 3999668

  An object of the present invention is to provide a mixed aerosol container that has a simple structure and can maintain an upright state without attaching a cap to the outer container.

[1] In order to achieve the above object, the present invention provides an external container that contains a first content, an internal container that contains a second content and is disposed in the external container, and one of the external containers Is provided at the other end connected to the discharge mechanism that can discharge the first contents in the outer container and the outer container by tightening . A mixing mechanism for discharging the contents into the outer container and mixing the first contents and the second contents, and the other end of the outer container is formed in a concave shape recessed inward; The other end portion is provided with a hole portion, and the mixing mechanism includes a protruding member protruding outward from the hole portion. By pressing the protruding member, the mixing mechanism has a first member in the inner container. 2 The contents are discharged into the outer container, and the length of the protruding member is the other edge of the outer container. Are set so as not to exceed, the other end, characterized in that it is formed as gradually amount to diameter increases toward the other.

  According to the present invention, since the other end of the outer container is a recess and the protruding member does not protrude from the other end of the outer container, the outer container itself is not attached to the bottom of the outer container without attaching an upright cap. The upright state can be maintained. Also, since the discharge mechanism is provided at one end of the outer container and the mixing mechanism is provided at the other end of the outer container, compared to the case where two discharge mechanisms and holding means are provided as in the conventional product. The structure of the mixed aerosol container can be simplified.

  [2] In the present invention, the recessed portion is provided with a male screw portion concentric with the protruding member, a cap nut member having a screw hole screwed into the male screw portion, and screwed into the male screw portion. Accordingly, it is preferable that the protruding member is pushed in at the bottom of the screw hole of the cap nut member, the second content in the inner container is discharged into the outer container, and the first content and the second content are mixed.

  Since the protruding member is set so as not to exceed the other edge of the outer container, the protruding member has a relatively short length and is located in the concave shape of the other end. Therefore, it becomes difficult to press the protruding member as it is.

  In this case, as described above, if the male screw portion is provided in the recess, the cap nut member is screwed into the male screw portion, and the protruding member is pressed at the bottom of the screw hole of the cap nut member, the other The projecting member can be pressed only by rotating the cap nut member arranged in the concave shape at the end of the end portion, and the operation for mixing the two contents becomes easy.

[3] Moreover, in this invention, it is comprised so that the quantity (diameter expansion quantity) which expands the diameter of the other end part of an outer container gradually may be increased as it goes to the other . According to such a configuration, the pressure resistance of the other end of the outer container can be improved. Further, the space at the other end of the outer container becomes wider toward the other, and the cap nut member can be easily gripped and rotated.

  [4] In the present invention, the score is formed by positioning the inner container at a portion where the projecting member contacts, the score is broken by pressing the projecting member against the inner container, and the second content is discharged. Is preferred.

  As a method for discharging the second content from the inner container, it is conceivable to make the tip of the protruding member a sharp puncture portion and to provide a small diameter portion with a reduced diameter on the proximal end side of the puncture portion. Then, it is conceivable that the puncture portion of the protruding member is pierced into the inner container, and the second content is discharged from the gap between the hole opened in the inner container and the small diameter portion.

  However, in this case, it is necessary to push in the protruding member until the puncture portion penetrates the wall of the inner container and the small diameter portion is positioned in the hole formed in the inner container, and the stroke of the protruding member becomes long.

  In this case, as described above, if the score is formed in the inner container and the score is broken by pressing the inner container with the protruding member, the stroke of the protruding member can be shortened.

  [5] It is preferable that the other end portion of the outer container used in the present invention is formed by denting one end portion formed in a convex shape protruding outward in a dome shape. According to such a manufacturing method, the other end of the outer container can be manufactured in the same manner as the one end of the outer container except for the final step, and the manufacturing cost of the mixed aerosol container can be reduced. it can.

Sectional drawing which shows embodiment of the container for mixed aerosols of this invention. Explanatory drawing which shows the manufacturing method of the bottom cover of this embodiment.

  With reference to FIG. 1, an embodiment of a mixed aerosol container of the present invention will be described. The mixed aerosol container 1 of the present embodiment sprays a two-component paint such as urethane clear spray, and includes an outer container 2 made of tinplate and an inner container 3 made of aluminum disposed in the outer container 2. With. The outer container 2 includes a cylindrical main body 21, a canopy 22 (one end) that closes one end of the cylindrical main body 21, and a bottom lid 23 (the other end) that closes the other end of the cylindrical main body 21. Part). The outer container 2 contains a first content L1 such as a paint. The inner container 3 contains a second content L2 such as a curing agent.

  The canopy 22 (one end) is formed in a dome-shaped convex shape that protrudes upward (outward). A hole 22 a is provided in the center of the canopy 22. The hole 22a is provided with a discharge mechanism 4 so as to close the hole 22a.

  The discharge mechanism 4 is configured in the same manner as a general valve. Specifically, the discharge mechanism 4 includes an outer wall portion 41 fixed to the canopy 22 so as to close the hole portion 22a, a bottomed cylindrical body 42 that is open on one side and closed on the other side, and a hollow tubular nozzle 43. With. The lower end of the nozzle 43 is closed. The outer wall portion 41 includes a cylindrical protrusion 41a that protrudes upward at the center portion thereof. A hole 41b is provided in the center of the cylindrical protrusion 41a. The upper end portion of the nozzle 43 is exposed to the outside from the hole 41b.

  The open end side of the bottomed cylindrical body 42 is inserted into the cylindrical protrusion 41a. And the bottomed cylindrical body 42 is fixed to the cylindrical protrusion 41a by caulking the cylindrical protrusion 41a. The open end (upper end) of the bottomed cylindrical body 42 is in contact with the upper inner surface of the cylindrical protrusion 41 a via the annular seal member 44. The nozzle 43 is provided with an overhanging portion 43 a that is positioned at a portion inserted into the bottomed cylindrical body 42 and projects outward in the radial direction.

  A coiled spring 45 is accommodated in the bottomed cylindrical body 42 as an urging means that urges the nozzle 43 upward by coming into contact with the protruding portion 43a. A hole 42 a is provided at the closed end of the bottomed cylindrical body 42. A dip tube 46 communicating with the inside of the bottomed cylindrical body 42 is connected to the closed end of the bottomed cylindrical body 42 through the hole 42a. The dip tube 46 extends toward the lower end of the outer container 2.

  The nozzle 43 is provided with a side hole 43b. The side hole 43b is closed by the annular seal member 44 when the nozzle 43 is positioned at the upper end. When the nozzle 43 is pressed downward against the urging force of the coil spring 45, the side hole 43 b moves below the annular seal member 44 and communicates with the bottomed cylindrical body 42. Thus, the first content L1 in the outer container 2 is discharged from the upper end opening of the nozzle 43 through the dip tube 46, the bottomed cylindrical body 42, and the side hole 43b.

  The bottom lid 23 (the other end) is formed in a concave shape that is recessed inward. A hole 23 a is provided at the center of the bottom cover 23. The mixing mechanism 5 is provided in the hole 23a so as to close the hole 23a. The mixing mechanism 5 includes an outer wall 51 fixed to the bottom lid 23 so as to close the hole 23a, a bottomed cylindrical body 52 that is open at one end and closed at the other, and a rod-like protruding member 53. The outer wall portion 51 includes a cylindrical protrusion 51a that protrudes downward at the center portion thereof. A hole 51b is provided in the center of the cylindrical protrusion 51a. The lower end portion of the protruding member 53 is exposed outward from the hole 51b. The length of the protruding member 53 is set so that the lower end thereof does not discharge below the lower end of the outer container 2. In other words, the length of the protruding member 53 is set so that the lower end thereof does not exceed the lower end (the other end edge) of the outer container 2.

  The open end side of the bottomed cylindrical body 52 is inserted into the cylindrical protrusion 51a. And the bottomed cylindrical body 52 is fixed to the cylindrical protrusion 51a by caulking the cylindrical protrusion 51a. The open end (lower end) of the bottomed cylindrical body 52 is in contact with the lower inner surface of the cylindrical protrusion 51 a via the annular seal member 54. The protruding member 53 is provided with an overhanging portion 53 a that is positioned at a portion inserted into the bottomed cylindrical body 52 and projects outward in the radial direction. In the bottomed cylindrical body 52, a coil spring 55 is accommodated as an urging means that abuts the protruding portion 53a and urges the protruding member 53 downward. The closed end (upper end) of the bottomed cylindrical body 52 is provided with a hole 52a through which the upper end of the protruding member 53 passes. A fixing mechanism 6 for fixing the inner container 3 is provided at the closed end (upper end) of the bottomed cylindrical body 52.

  The fixing mechanism 6 includes a flange portion 61 that is connected to the upper end of the bottomed cylindrical body 52, a claw portion 62 that is disposed on the peripheral edge portion of the flange portion 61 at intervals in the circumferential direction, and the claw portion 62. And an annular member 63 for locking disposed on the outer periphery so as to surround the outer periphery. At the lower end portion of the inner peripheral surface of the locking annular body 63, a protrusion 63a protruding inward in the radial direction is provided.

  The flange portion 61 projects outward in the radial direction from the claw portion 62. Accordingly, the protrusion 63 a engages with the protruding portion of the flange portion 61, and the locking annular body 63 that slides on the outer periphery of the claw portion 62 is prevented from dropping below the flange portion 61. Further, a protrusion 62 a that protrudes outward in the radial direction is provided at the upper end of the outer peripheral surface of the claw portion 62. The protrusion 62 a and the protrusion 63 a engage with each other, thereby preventing the locking annular body 63 from coming off from the claw 62. Further, the flange portion 61 is provided with a plurality of discharge holes 61 a located between the hole portion 52 a and the claw portion 62.

  The lower end portion of the inner container 3 is composed of a neck portion 3a whose diameter gradually decreases downward and a head portion 3b whose diameter is set larger than the lower end of the neck portion 3a.

  In order to fix the inner container 3 with the fixing mechanism 6, first, the locking annular body 63 is moved below the claw portion 62. At this time, each nail | claw part 62 can spread radially outward from the lower end. Then, the head 3 b of the inner container 3 is inserted into the claw 62 and the neck 3 a is hooked on the claw 62. Then, the locking annular body 63 is moved upward with respect to the claw portion 62. As a result, the claw portion 62 can no longer spread outward in the radial direction, and the inner container 3 can be prevented from falling off the fixing mechanism 6.

  A male screw is formed on the outer periphery of the cylindrical protrusion 51a. In the present embodiment, the cylindrical protrusion 51a has the function of a male screw part. The cap nut member 7 is screwed into the cylindrical protrusion 51a which is a male screw portion. The cap nut member 7 includes a screw hole 7a that is screwed into a cylindrical protrusion 51a that is a male screw portion.

  The cap nut member 7 is screwed into the cylindrical projection 51a which is a male screw portion, the projecting member 53 is pushed in at the bottom of the screw hole 7a of the cap nut member 7, and the second content L2 of the inner container 3 is inserted into the outer container 2. The first content L1 and the second content L2 are mixed.

  A score 3c (breaking groove) is formed on the bottom surface of the inner container 3 to facilitate opening. When the score 3c is broken and the head 3b of the inner container 3 is opened, the second content L2 is discharged into the outer container 2 through the discharge hole 61a of the flange portion 61 and mixed with the first content L1. To do.

  Next, with reference to FIG. 2, the manufacturing method of the bottom cover 23 which is the other edge part of the outer container 2 is demonstrated. The bottom lid 23 as the other end is a canopy 22 (see FIG. 2A) that has been drawn into a convex shape that projects into a dome shape as one end of the outer container 2, and is shown in FIG. 2B. In this way, it is formed again by denting.

  According to this, the bottom cover 23 which is the other end can be manufactured in the same process as the canopy 22 except for the final process shown in FIG. In other words, the same drawing die as that of the canopy 22 can be used except for the final step. Therefore, the bottom lid 23 as the other end can be manufactured easily and inexpensively, and the entire mixed aerosol container of this embodiment can be manufactured easily, and the manufacturing cost can be reduced.

  Further, the bottom lid 23 as the other end is formed so as to gradually expand in diameter as it goes downward as shown in FIG. Thereby, the pressure | voltage resistance of the bottom cover 23 which is the other edge part can be improved, and 1.5 MPa or more which is a pressure | voltage resistant strength suitable for a high-pressure gas security method can be ensured. Moreover, since the space is gradually widened as the bottom cover 23 which is the other end part goes downward, the cap nut member 7 is easily gripped and rotated.

  According to the mixed-type aerosol container 1 of the present embodiment, the structure is simplified as compared with a conventional product having a holding means in addition to the first and second two discharge mechanisms. Can be planned. In addition, the upright state can be maintained without attaching an upright cap to the lower end of the outer container 2.

  Further, in the mixed aerosol container 1 of the present embodiment, a score 3 c (breaking groove) is formed in the head 3 b of the inner container 3, and the protruding member 53 is pressed against the head 3 b of the inner container 3. Then, the head 3b of the inner container 3 is pressed by the protruding member 53 to break the score 3c, and the second content L2 in the inner container 3 is discharged. For this reason, according to the mixed aerosol container 1 of the present embodiment, the stroke of the protruding member 53 can be shortened.

  In the present embodiment, the case where the cylindrical projection 51a is used as the male screw portion by forming the male screw on the outer periphery of the cylindrical projection 51a of the mixing mechanism 5 has been described. The threaded portion is not limited to this. For example, the male screw portion may be provided on the bottom lid as the other end, and the effect of the present invention can also be obtained by this.

  Further, the tip of the protruding member may be a sharp puncture portion, and a small diameter portion having a small diameter may be provided on the proximal end side (downward side) of the puncture portion. In this case, the puncture portion of the protruding member may be pierced into the inner container, and the second content may be discharged from the gap between the hole opened in the inner container and the small diameter portion. However, in this structure, the stroke of the discharge member becomes longer than that of the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 ... Mixed-type aerosol container, 2 ... External container, 21 ... Cylindrical main body, 22 ... Canopy (one end part), 22a ... Hole part, 23 ... Bottom cover (the other end part), 23a ... Hole part, DESCRIPTION OF SYMBOLS 3 ... Inner container, 3a ... Neck part, 3b ... Head, 3c ... Score, 4 ... Discharge mechanism, 41 ... Outer wall part, 41a ... Cylindrical protrusion, 41b ... Hole part, 42 ... Bottomed cylindrical body, 42a ... Hole part 43 ... Nozzle 43a ... Overhang part 43b ... Side hole 44 ... Ring seal member 45 ... Coil spring 46 ... Dip tube 5 ... Mixing mechanism 51 ... Outer wall part 51a ... Cylindrical protrusion ( Male thread part), 51b ... hole, 52 ... bottomed cylindrical body, 52a ... hole, 53 ... projection member, 53a ... overhang, 54 ... annular seal member, 55 ... coil spring, 6 ... fixing mechanism, 61 ... Flange part, 61a ... Discharge hole, 62 ... Claw part, 62a ... Projection part, 63 ... Locking ring , 63a ... projection, 7 ... cap nut member, 7a ... screw hole, L1 ... first contents, L2 ... second contents.

Claims (5)

An external container for containing the first contents;
An inner container that contains a second content and is disposed within the outer container;
A discharge mechanism provided at one end of the outer container and capable of discharging the first contents in the outer container;
It is provided at the other end connected by the tightening process of the outer container, the second content in the inner container is discharged into the outer container, and the first content and the second content are mixed. A mixing mechanism,
The other end of the outer container is formed in a concave shape that is recessed inwardly,
A hole is provided at the other end of the outer container,
The mixing mechanism includes a projecting member projecting outward from the hole, and by pressing the projecting member, the second content in the inner container is discharged into the outer container,
The length of the protruding member is set so as not to exceed the other edge of the outer container,
The mixed aerosol container is characterized in that the other end portion is formed so as to gradually increase the diameter toward the other end. A mixed aerosol container according to claim 1,
The other end portion or the mixing mechanism is provided with a male screw portion,
The mixed aerosol container includes a cap nut member having a screw hole screwed into the male screw portion,
By screwing the cap nut member into the male screw portion, the protruding member is pushed in at the bottom of the screw hole of the cap nut member, and the second content in the inner container is discharged into the outer container. The mixed aerosol container, wherein the first contents and the second contents are mixed. A mixed aerosol container according to claim 1 or claim 2 ,
In the inner container, a score is formed by being positioned at a portion where the protruding member contacts,
The mixed aerosol container, wherein the protruding member is pressed against the inner container to break the score and discharge the second contents.   An external container for containing the first contents;
  An inner container that contains a second content and is disposed within the outer container;
  A discharge mechanism provided at one end of the outer container and capable of discharging the first contents in the outer container;
  A mixing mechanism that is provided at the other end of the outer container, discharges the second contents in the inner container into the outer container, and mixes the first contents and the second contents;
  The other end of the outer container is formed in a concave shape that is recessed inwardly,
  A hole is provided at the other end of the outer container,
  The mixing mechanism includes a projecting member projecting outward from the hole, and by pressing the projecting member, the second content in the inner container is discharged into the outer container,
  The length of the protruding member is set so as not to exceed the other edge of the outer container,
  The other end portion or the mixing mechanism is provided with a male screw portion,
  The mixed aerosol container includes a cap nut member having a screw hole screwed into the male screw portion,
  By screwing the cap nut member into the male screw portion, the protruding member is pushed in at the bottom of the screw hole of the cap nut member, and the second content in the inner container is discharged into the outer container. The mixed aerosol container, wherein the first contents and the second contents are mixed. A method for producing a mixed aerosol container according to any one of claims 1 to 4,
The one end is formed in a convex shape protruding outward in a dome shape,
The method for producing a mixed aerosol container, wherein the other end is formed by recessing the one end.

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