JP2016049989A - Discharge head for aerosol container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately discharge a desired amount of contents from an aerosol container.SOLUTION: A discharge head for an aerosol container comprises a fixed member 21 fixed to an aerosol container 10 so as to enclose a stem 16 from radially outside, and a rotational member 22 having an insertion part 28 inserted into the fixed member 21 and fitted to the stem 16 so as to be rotatable about an axis of the stem 16 and lowering in accordance with rotation about the axis. One of the fixed member 21 and the insertion part 28 is formed with a guide surface circumferentially extending along and around the axis and vertically facing a sliding protrusion installed on the other thereof. The guide surface is arranged with a plurality of ride-over protrusions, over which the sliding protrusion rides when the rotational member 22 rotates about the axis, are arranged adjacently in the circumferential direction. When the sliding protrusion rides over the ride-over protrusion, the sliding protrusion and the ride-over protrusion, the sliding protrusion and the ride-over protrusion lower the rotational member 22 against an upward energizing force of the stem 16 by sliding of the sliding protrusion on the ride-over protrusion.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ejection head for an aerosol container.

  Conventionally, for example, a discharge container as shown in Patent Document 1 below is known. This discharge container is provided with a tray for storing the liquid sucked up above the internal piston.

Japanese Utility Model Publication No. 1-103554

  Here, the inventor of the present application examined the formation of an aerosol container with a discharge head by applying a discharge head that lowers the stem and discharging the contents, such as the aforementioned tray, to the aerosol container. It has been found that there is room for improvement in discharging the contents with a desired discharge amount and high accuracy.

  This invention is made | formed in view of the situation mentioned above, Comprising: It aims at discharging the content from an aerosol container with a desired discharge amount and a sufficient precision.

In order to solve the above problems, the present invention proposes the following means.
The discharge head according to the present invention is attached to an aerosol container in which the contents are stored, and discharges the contents by lowering a stem that is vertically movable to the mouth of the aerosol container in an upwardly biased state. A discharge head, having a fixing member fixed to the aerosol container so as to surround the stem from the outside in the radial direction, and an insertion portion inserted into the fixing member; A rotating member that is rotatably mounted about the axis and that descends with rotation about the axis, and one of the fixed member and the insertion portion is provided with a sliding member provided on the other A guide surface is formed opposite to the moving protrusion in the vertical direction and extending in the circumferential direction around the axis, and the sliding protrusion is formed on the guide surface when the rotating member rotates around the axis. A plurality of climbing protrusions that can be overcome in the circumferential direction are arranged adjacent to each other in the circumferential direction. When the part slides on the overhanging protrusion, the rotating member is lowered against the upward biasing force of the stem.

In this case, when discharging the contents from the aerosol container, the rotating member is rotated around the axis, and the sliding protrusion is overcome and the protrusion is overcome in the circumferential direction. At this time, as the sliding protrusion rides over the protrusion, the rotating member is lowered together with the stem against the upward biasing force of the stem, and the contents are discharged from the aerosol container.
When the sliding protrusion finishes over the overhanging protrusion, the rotating member is raised together with the stem by the upward biasing force of the stem, and the sliding protrusion is immediately over the one overhanging protrusion and the one overhanging protrusion. Into the intermediate recess formed between the other overpass protrusions adjacent in the circumferential direction and the discharge of the contents is stopped. Further, at this time, when the rotating member continues to rotate, the sliding projections also get over the other climbing projections and the contents are further discharged.
Here, in this discharge head, even if the rotational force applied to the rotating member is small by forming the overpass projection small and suppressing the rotational force necessary for the sliding projection to get over the overprojection, It is possible to suppress an excessive amount of time for the sliding protrusion to get over and over the protrusion. Therefore, when the sliding protrusion gets over the protrusion, regardless of the magnitude of the rotational force applied to the rotating member, the rotating speed of the rotating member is kept equal and the discharge amount of the contents from the aerosol container is stabilized. be able to.
Note that if the overhanging protrusion is formed small as described above, the stem lowering time when the sliding protrusion gets over the overhanging protrusion is shortened and the discharge amount of the contents is reduced. Adjacent in the direction. Therefore, it is possible to get over the plurality of overhanging protrusions on the sliding protrusion according to the rotation angle of the rotating member, and a sufficient discharge amount can be stably secured.
As described above, according to this discharge head, the sliding protrusions get over the circumferentially adjacent plural overhanging protrusions, so that the rotation of the rotating member can be performed regardless of the magnitude of the rotational force applied to the rotating member. A sufficient discharge amount can be stably secured according to the angle. As a result, the contents can be discharged from the aerosol container with a desired discharge amount and accuracy.

  The base end portions of the climbing protrusions adjacent to each other may be directly connected in the circumferential direction.

  In this case, since the base ends of the adjacent overhanging protrusions are directly connected in the circumferential direction, it is possible to arrange more overhanging protrusions in the circumferential direction, and reliably according to the rotation angle of the rotating member. A sufficient discharge amount can be secured stably.

  The climbing projection gradually decreases in the circumferential direction from the base end portion of the climbing projection toward the projecting end portion, and the projecting end portion of the climbing projection extends along the circumferential direction with respect to the base end portion of the climbing projection. It may be arranged inside.

  In this case, the jumping projection gradually decreases in the circumferential direction as it goes from the base end portion of the jumping projection to the protruding end portion, and the jumping projection gradually increases in the circumferential direction as it goes from the base end portion of the jumping projection to the protruding end portion. It is getting smaller. Therefore, it is possible to climb over the sliding projection and over the projection irrespective of the direction in which the rotating member is rotated, and the operability of the ejection head can be improved.

  The guide surface may extend over the entire circumference of the circumferential direction, and an uneven portion formed by the plurality of climbing protrusions arranged adjacent to each other in the circumferential direction may be arranged over the entire circumference of the guide surface. .

  In this case, the concavo-convex portion is arranged over the entire circumference of the guide surface. Therefore, the discharge amount of the contents can be stabilized according to the rotation angle of the rotating member, regardless of the relative positional relationship between the fixing member and the rotating member in the circumferential direction, and the operability of the discharge head Can be increased.

  On the guide surface, a plurality of uneven portions formed by the plurality of climbing protrusions arranged adjacent to each other in the circumferential direction may be intermittently arranged in the circumferential direction.

  In this case, since a plurality of concave and convex portions are intermittently arranged in the circumferential direction on the guide surface, it becomes possible to adjust the discharge amount of the contents in units of the concave and convex portions one by one. The operability can be improved.

  The guide surface may include a flat portion that connects the concavo-convex portions to each other in the circumferential direction, and a minute protrusion formed on the flat portion.

  In this case, the guide surface includes a flat portion and a minute protrusion. Therefore, after the sliding protrusion passes through one uneven part, when it slides over the flat part and climbs over the minute protrusion, the click feeling due to getting over is rotated while restricting excessive vertical movement of the rotating member. It can be obtained via a member. As a result, it is possible to recognize that the sliding protrusion has passed through one uneven portion, and the discharge amount of the contents can be reliably adjusted for each uneven portion.

  Even if a portion of the guide surface located between the concavo-convex portions is provided with a restricting portion that is engaged with the sliding protrusion in the circumferential direction and restricts further rotational movement of the rotating member. Good.

  In this case, since the restricting portion is provided in the portion located between the concavo-convex portions on the guide surface, the sliding protrusion that has passed through one concavo-convex portion passes through the other concavo-convex portions unintentionally. Can be reliably suppressed. Thereby, the discharge amount of the contents can be reliably adjusted for each uneven portion.

  The rotating member has a mounting portion to be mounted on the stem, a plurality of molding holes through which the contents discharged from the stem pass, and a molding surface in which these molding holes open, and the plurality of moldings A plurality of shaped pieces formed by passing through the holes and forming the shaped pieces by combining a plurality of shaped pieces formed on the shaped surface, and the mounting portion and the shaped portion; A supply chamber for supplying the contents discharged from the stem to each of the plurality of molding holes may be provided.

In this case, the contents discharged from the stem of the aerosol container are supplied to the plurality of molding holes through the supply chamber, and are formed by passing through these molding holes separately to form a plurality of shaped pieces. . And a modeling thing is formed by combining these modeling pieces on a modeling surface.
Here, according to this discharge head, the discharge amount of the contents can be stabilized according to the rotation angle of the rotating member. Thereby, it becomes possible to supply an appropriate amount of contents to each molding hole, and to accurately form a shaped piece formed by each shaping hole, and to form a shaped article with high accuracy.

  According to the present invention, the contents can be discharged from the aerosol container with a desired discharge amount and accuracy.

It is a longitudinal half sectional view showing a modeling head concerning a 1st embodiment of the present invention. It is a top view of the modeling head shown in FIG. FIG. 2 is a schematic development view of a conversion mechanism constituting the modeling head shown in FIG. 1. It is a side view of the mounting part with which the rotation member which comprises the modeling head shown in FIG. It is a longitudinal cross-sectional view of the fixing member which comprises the modeling head shown in FIG. It is a typical development view of a conversion mechanism which constitutes a modeling head concerning a 2nd embodiment of the present invention. It is a typical development view of a conversion mechanism which constitutes a modeling head concerning a 3rd embodiment of the present invention.

  Hereinafter, a modeling head (discharge head) according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 5, the modeling head 20 is attached to the aerosol container 10. The aerosol container 10 discharges the contents capable of holding the shape for at least a certain time after the discharge, such as a foam or a highly viscous material, from the discharge hole 11. In this embodiment, the aerosol container 10 has a bottomed cylindrical shape, and the mouth portion 12 of the aerosol container 10 is covered with a top wall 13 to form a sealed container shape. In the illustrated example, an aerosol can in which a liquid content is accommodated is adopted as the aerosol container 10.

  The center axis of the mouth part 12, the body part 14 and the bottom part (not shown) of the aerosol container 10 are all arranged on a common container axis O1. The top wall 13 is provided with an annular recess 15 that extends in a direction around the container axis O1 (head axis O2). The annular recess 15 is recessed downward.

  A stem 16 is erected on the mouth 12 of the aerosol container 10. The stem 16 is erected on the mouth 12 so as to be movable downward in an upward biased state. The stem 16 is disposed coaxially with the container axis O <b> 1 and has a smaller diameter than the annular recess 15. The stem 16 passes through the top wall 13. In the stem 16, the discharge hole 11 is provided in the upper end portion located outside the aerosol container 10, and a discharge valve (not shown) is provided in a portion located in the aerosol container 10.

  When the stem 16 is pushed down with respect to the aerosol container 10, the discharge valve is opened, and the content in the aerosol container 10 is discharged from the discharge hole 11 through the stem 16. From the discharge hole 11, the contents in the aerosol container 10 in the form of foam are discharged as contents. When the depression of the stem 16 is released, the stem 16 is lifted by the upward biasing force acting on the stem 16, and the discharge valve is closed to stop the discharge of the contents.

  The modeling head 20 lowers the stem 16 and discharges the contents. The modeling head 20 shapes the contents discharged from the discharge hole 11 of the aerosol container 10 into a shape different from the case where the contents are simply discharged from the discharge hole 11 to form a three-dimensional shaped object. In this embodiment, the modeling head 20 models a double-flowered flower, specifically a rose, as a modeled object.

  As shown in FIG. 1, the modeling head 20 includes a fixed member 21 and a rotating member 22. The fixing member 21 and the rotating member 22 are formed in a cylindrical shape, and the central axes of the fixing member 21 and the rotating member 22 are both located on a common axis. Hereinafter, this common axis is referred to as a head axis O2. The head axis O2 is located on the container axis O1. The direction along the head axis O2 is referred to as the vertical direction, the aerosol container side along the vertical direction is referred to as the lower side, and the anti-aerosol container side is referred to as the upper side. In a plan view of the modeling head 20 as viewed from above and below, the direction orthogonal to the head axis O2 (the direction along the modeling surface) is referred to as the radial direction, and the direction around the head axis O2 is referred to as the circumferential direction.

The fixing member 21 is fixed to the mouth portion 12 of the aerosol container 10 so as to surround the stem 16 from the outside in the radial direction.
The fixing member 21 is formed in a multiple cylinder shape coaxial with the head axis O2. The fixing member 21 is fixed to the mouth portion 12 of the aerosol container 10 so that it cannot rotate around the head axis O2 and cannot be raised. The fixing member 21 includes an outer cylinder part 23, an inner cylinder part 24, and a connecting part 25.

  The outer cylinder part 23 is formed in a double cylinder shape, and is fitted to the mouth part 12 of the aerosol container 10 from the outside in the radial direction. In the illustrated example, the outer cylinder portion 23 is crimped to the mouth portion 12 from the outside in the radial direction, whereby the rotational movement of the fixing member 21 around the head axis O2 and the upward movement of the fixing member 21 are restricted. .

The inner cylinder portion 24 is fitted in the annular recess 15. In the annular recess 15, the inner cylinder portion 24 is fitted to the outer peripheral surface facing the inner side in the radial direction from the inner side in the radial direction.
The connecting portion 25 is disposed on the upper side of the mouth portion 12 of the aerosol container 10. The connecting part 25 connects the upper ends of the inner cylinder part 24 and the outer cylinder part 23 to each other.

  The rotating member 22 is attached to the discharge hole 11 of the aerosol container 10. The rotating member 22 is attached to the discharge hole 11 via the stem 16. The rotating member 22 is attached to the stem 16 so as to be rotatable around the head axis O2, and is lowered along with the rotational movement with respect to the stem 16. The rotating member 22 includes a mounting part 26, a modeling part 27, and an insertion part 28.

  The mounting portion 26 is formed in a bottomed cylindrical shape arranged coaxially with the head axis O2. The mounting portion 26 is mounted on the upper end portion of the stem 16 and is disposed on the upper side of the fixing member 21. Between the bottom wall portion of the mounting portion 26 and the connecting portion 25 of the fixing member 21, a vertical clearance S that allows the rotating member 22 to descend is provided.

  The mounting portion 26 is provided with a fitting cylinder 29 extending downward. The fitting cylinder 29 is open to the bottom wall portion of the mounting portion 26. The fitting cylinder 29 is disposed coaxially with the head axis O2, and is fitted to the stem 16 so as to be rotatable. The fitting cylinder 29 is fitted to the stem 16 from the outside in the radial direction. The fitting cylinder 29 is provided with a protruding portion 30 that protrudes inward in the radial direction. The protruding portion 30 is arranged in an annular shape coaxial with the head axis O2, and abuts on the stem 16 from above. The inside of the protrusion 30 is a communication hole 31 that communicates with the inside of the discharge hole 11.

  As shown in FIGS. 1 and 2, the modeling unit 27 includes a main body part 32 formed in a plate shape orthogonal to the head axis O2, an operation cylinder part 33 extending downward from the outer peripheral edge of the main body part 32, and It has. The modeling portion 27 is formed as a whole with a cylindrical shape by the main body portion 32 and the operation tube portion 33.

The main body portion 32 is provided with a seal cylinder portion 34 that fits into the mounting portion 26. The seal cylinder portion 34 is arranged coaxially with the head axis O2 and extends downward from the main body portion 32.
The operation cylinder portion 33 is fitted to the mounting portion 26 from the outside in the radial direction, and surrounds the fixing member 21 from the outside in the radial direction.

  The modeling portion 27 is fixed to the mounting portion 26 so as not to rotate relatively around the head axis O2. An anti-rotation part 35 (see FIG. 4) is provided between the modeling part 27 and the mounting part 26. The anti-rotation part 35 is provided in each of the modeling part 27 and the mounting part 26 in a concave or convex shape. Since the rotation preventing portions 35 of the modeling portion 27 and the mounting portion 26 are locked with each other, relative rotational movement between the modeling portion 27 and the mounting portion 26 is restricted.

  A plurality of molding holes 36 are formed in the modeling portion 27. The plurality of molding holes 36 penetrates the main body portion 32 in the vertical direction. The plurality of molding holes 36 are individually opened in the modeling surface 37 facing upward in the main body 32 and the supply surface 38 facing downward in the main body 32. The modeling surface 37 and the supply surface 38 extend in a direction orthogonal to the head axis O2.

  The forming hole 36 is formed in a long hole shape extending in the circumferential direction. A plurality of forming holes 36 are arranged at intervals in the circumferential direction. A plurality of forming holes 36 are arranged at intervals in the radial direction. In the present embodiment, a plurality of forming holes 36 arranged at intervals in the circumferential direction form a hole row 39, and the hole rows 39 are arranged in multiples around the head axis O2.

  As shown in FIG. 1, a supply chamber 40 is provided between the mounting portion 26 and the modeling portion 27. The supply chamber 40 diffuses the contents discharged from the discharge holes 11 in the radial direction and supplies the contents to each of the plurality of molding holes 36. The supply chamber 40 is disposed coaxially with the head axis O2 and communicates with the discharge hole 11 through the communication hole 31. A part of the wall surface of the supply chamber 40 is formed by the supply surface 38.

  The supply chamber 40 is provided with a diffusion member 41 that faces the ejection hole 11. The diffusing member 41 is formed in a plate shape whose front and back faces in the vertical direction. The diffusing member 41 is disposed coaxially with the head axis O2. The diffusion member 41 is opposed to the discharge hole 11 through the communication hole 31 and has a smaller diameter than the communication hole 31. The diffusing member 41 is connected to the opening peripheral edge portion of the communication hole 31 via the bridge portion 42. A plurality of bridge portions 42 are arranged at intervals in the circumferential direction.

The insertion part 28 is inserted into the fixing member 21. The insertion portion 28 extends downward from the mounting portion 26 and is formed integrally with the mounting portion 26. The insertion part 28 is formed in a cylindrical shape arranged coaxially with the head axis O2. The insertion portion 28 has a larger diameter than the fitting cylinder 29 and is fitted in the fixed member 21.
A conversion mechanism 43 is provided between the fixed member 21 and the rotating member 22. The conversion mechanism 43 converts the rotating operation of the rotating member 22 with respect to the stem 16 into the descending operation of the rotating member 22 with respect to the mouth portion 12.

  As shown in FIGS. 3 to 5, the conversion mechanism 43 includes a sliding protrusion 44 provided on one of the fixed member 21 and the insertion portion 28, and a guide surface 45 provided on the other. It is equipped with. In the present embodiment, the sliding protrusion 44 is provided on the insertion portion 28, and the guide surface 45 is provided on the fixing member 21. The sliding projection 44 protrudes in the radial direction, while the guide surface 45 extends in the circumferential direction and faces the vertical direction, and the guide surface 45 and the sliding projection 44 face each other in the vertical direction.

  The sliding protrusion 44 protrudes outward in the radial direction from the outer peripheral surface of the insertion portion 28. A plurality of sliding protrusions 44 are arranged at intervals in the circumferential direction. In the illustrated example, four sliding protrusions 44 are provided at equal intervals in the circumferential direction. The plurality of sliding protrusions 44 have the same shape and the same size. The sliding protrusion 44 is formed in a triangular shape that is convex in the vertical direction when viewed from the front, and isosceles triangular that is convex upward in the illustrated example. The sliding protrusion 44 is formed by a pair of inclined portions 44b extending inclined with respect to the vertical direction. The size of the sliding projection 44 in the circumferential direction is larger than the size of the sliding projection 44 in the vertical direction.

  A guide protrusion 44 a is connected to the sliding protrusion 44 in the vertical direction. The guide protrusion 44 a protrudes from the outer peripheral surface of the insertion portion 28 and extends downward from the sliding protrusion 44. The amount of protrusion of the guide protrusion 44a gradually decreases as the guide protrusion 44a moves away from the sliding protrusion 44 in the vertical direction. When the insertion portion 28 is fitted into the fixed member 21, the guide protrusion 44 a is moved below the guide surface 45 by the sliding protrusion 44 getting over the inner peripheral surface of the fixed member 21 from the upper side to the lower side. Guide you to reach the side.

  The guide surface 45 is provided on the inner peripheral surface of the fixing member 21. An arrangement groove portion 46 extending in the circumferential direction is formed on the inner peripheral surface of the fixing member 21, and the guide surface 45 is constituted by a side surface facing the vertical direction in the arrangement groove portion 46. The placement groove 46 is formed in a non-opening depression shape on the outer side in the radial direction while opening toward the inner side in the radial direction. The arrangement groove 46 is provided over the entire circumference in the circumferential direction. The arrangement groove 46 opens from the lower end surface of the fixing member 21 downward.

The guide surface 45 is configured by a side surface facing the lower side in the arrangement groove 46. The guide surface 45 extends over the entire circumference in the circumferential direction. The guide surface 45 is provided with a climbing protrusion 47.
The climbing projection 47 is formed so that the sliding projection 44 can climb over when the rotating member 22 rotates about the head axis O2. A plurality of climbing protrusions 47 are arranged adjacent to each other in the circumferential direction. The base end portions of the adjacent protrusions 47 are directly connected in the circumferential direction. The climbing protrusion 47 is arranged over the entire circumference of the guide surface 45. In the example shown in the figure, sixteen ride-over protrusions 47 are arranged.

  The plurality of climbing protrusions 47 have the same shape and the same size. The climbing projection 47 gradually decreases in the circumferential direction from the base end portion of the climbing projection 47 toward the projecting end portion. The projecting end portion of the overpass projection 47 is disposed on the inner side in the circumferential direction with respect to the base end portion of the overpass projection 47. The protruding end portion of the climbing protrusion 47 is disposed at the same position along the circumferential direction as the circumferential central portion of the proximal end portion of the climbing protrusion 47.

  The climbing protrusion 47 is formed in a triangular shape that is convex in the vertical direction when viewed from the front, and isosceles triangular that is convex downward in the illustrated example. The climbing protrusion 47 is formed by a pair of inclined portions 47a extending inclined with respect to the vertical direction. Note that the base end portion of the overpass projection 47 extends over a range of 22.5 degrees along the circumference of the head axis O2 in the plan view of the fixing member 21, for example.

  An intermediate recess 48 is formed between the adjacent overhanging protrusions 47. The intermediate recess 48 opens toward the lower side. The intermediate recess 48 is formed in a triangular shape that is convex in the vertical direction when viewed from the front, and isosceles triangular that is convex upward in the illustrated example. The intermediate recess 48 is formed by a pair of inclined portions 47a that face each other in the circumferential direction at the climbing protrusions 47 adjacent to each other.

The front view shape of the ride-over projection 47 and the front view shape of the intermediate recess 48 are reversed in the vertical direction. The front view shape of the overpass projection 47 is obtained by inverting the front view shape of the sliding projection 44 in the vertical direction, and the front view shape of the intermediate recess 48 is equivalent to the front view shape of the sliding projection 44. Yes. The sliding protrusion 44 is fitted in the intermediate recess 48.
The plurality of climbing protrusions 47 arranged adjacent to each other in the circumferential direction form an uneven portion 49 extending in the circumferential direction. The concavo-convex portion 49 is configured by the climbing protrusion 47 and the intermediate concave portion 48 being arranged in the circumferential direction. In the present embodiment, one uneven portion 49 continuously extends over the entire circumference in the circumferential direction. In the concavo-convex portion 49, the inclination directions of the inclined portions 47a adjacent in the circumferential direction are reversed in the vertical direction.

  Next, the operation of the modeling head 20 will be described.

  In an initial state before operation, the sliding protrusion 44 is fitted in the intermediate recess 48, and each inclined portion 44 b of the sliding protrusion 44 is close to or abuts on each inclined portion 47 a of the intermediate recess 48. ing. At this time, the rotating member 22 and the stem 16 are located at the rising end position, and the discharge of the contents from the aerosol container 10 is restricted.

  When the contents are discharged from the aerosol container 10, the rotating member 22 positioned at the rising end position is rotated around the head axis O <b> 2 to get over the sliding protrusion 44 and get over the protrusion 47. At this time, the sliding projection 44 slides on the overpass projection 47 so that the slide projection 44 is guided downward by the overpass projection 47, and the rotating member 22 is subjected to the upward biasing force of the stem 16. Accordingly, the allowable gap S is lowered together with the stem 16 in the vertical direction, and the contents are discharged from the aerosol container 10.

When the sliding protrusion 44 reaches the protruding end of the overhanging protrusion 47 and the rotating member 22 and the stem 16 reach the lowered end position, the sliding protrusion 44 gets over the overhanging protrusion 47 in the circumferential direction.
Then, the rotating member 22 is lifted together with the stem 16 by the upward biasing force of the stem 16, and the sliding protrusion 44 is adjacent to the one jumping protrusion 47 that has just passed over and the one jumping protrusion 47 in the circumferential direction. It enters into an intermediate recess 48 formed between the other overpass projection 47 and the discharge of the contents is stopped. At this time, when the rotating member 22 continues to rotate, the sliding projection 44 also gets over the other climbing projection 47 and the contents are further discharged.
In the present embodiment, the sliding protrusion 44 can get over the protrusion 47 in the circumferential direction regardless of which side of the rotation member 22 is rotated about the head axis O2.

  Here, in the modeling head 20, the climbing projection 47 is formed to be sufficiently small, and the rotational force applied to the rotating member 22 is suppressed by suppressing the rotational force necessary for the sliding projection 44 to climb over the projection 47. Even if it is small, it is possible to suppress the time taken for the sliding protrusion 44 to get over the protrusion 47 so as to be excessive. Therefore, when the sliding protrusion 44 gets over the overhanging protrusion 47, the rotational speed of the rotating member 22 is kept equal regardless of the magnitude of the rotational force applied to the rotating member 22, and the contents from the aerosol container 10 are kept. The discharge amount can be stabilized.

  Note that if the overhanging protrusion 47 is formed small as described above, the lowering time of the stem 16 when the sliding protrusion 44 gets over the overhanging protrusion 47 is shortened and the discharge amount of the contents is reduced. The overpass projections 47 are arranged adjacent to each other in the circumferential direction. Therefore, it is possible to make the sliding protrusion 44 get over the plurality of overhanging protrusions 47 in accordance with the rotation angle of the rotating member 22, and a sufficient discharge amount can be secured stably.

By the way, the content discharged from the stem 16 of the aerosol container 10 is supplied into the supply chamber 40 through the communication hole 31 and between the bridge portions 42 adjacent to each other in the circumferential direction while the linear movement thereof is restricted by the diffusion member 41. Is done. The contents supplied into the supply chamber 40 diffuse in the radial direction and are supplied from the supply surface 38 to the plurality of molding holes 36.
When the contents pass through the plurality of molding holes 36 and are molded separately, a plurality of modeling pieces are formed, and these modeling pieces are combined on the modeling surface 37 to form a modeling object. In addition, the modeling piece modeled by the molding hole 36 is molded long in the direction in which the molding hole 36 extends.

  As described above, according to the modeling head 20 according to the present embodiment, the sliding projection 44 climbs over the plurality of climbing projections 47 adjacent to each other in the circumferential direction, so that the rotational force applied to the rotating member 22 is large. Regardless of this, a sufficient discharge amount can be stably secured according to the rotation angle of the rotating member 22. As a result, the contents can be discharged from the aerosol container 10 with a desired discharge amount and accuracy.

  Further, since the base ends of the adjacent protrusions 47 are directly connected to each other in the circumferential direction, it is possible to arrange more of the protrusions 47 in the circumferential direction, and according to the rotation angle of the rotating member 22, A sufficient discharge amount can be ensured stably.

  Further, the jumping projection 47 gradually decreases in the circumferential direction as it goes from the base end portion of the jumping projection 47 to the protruding end portion, and the jumping projection 47 gradually increases in the circumferential direction as it goes from the base end portion of the jumping projection 47 to the protruding end portion. The direction is getting smaller. Therefore, it is possible to climb over the sliding projection 44 and over the projection 47 regardless of the direction in which the rotating member 22 is rotated, and the operability of the modeling head 20 can be improved.

  Further, the concavo-convex portion 49 is disposed over the entire circumference of the guide surface 45. Therefore, the discharge amount of the contents can be stabilized according to the rotation angle of the rotating member 22 regardless of the relative positional relationship between the fixing member 21 and the rotating member 22 in the circumferential direction, and the modeling head 20 operability can be improved.

(Second Embodiment)
Next, the modeling head of 2nd Embodiment which concerns on this invention is demonstrated with reference to FIG.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

  In the modeling head of this embodiment, as shown in FIG. 6, a plurality of irregularities 49 are intermittently arranged on the guide surface 45 in the circumferential direction. The guide surface 45 includes a flat portion 50 that connects the concavo-convex portions 49 to each other in the circumferential direction, and a minute protrusion 51 formed on the flat portion 50. The flat portion 50 extends straight along the circumferential direction, and the sliding protrusion 44 slides on the flat portion 50. The protrusion amount of the minute protrusion 51 is smaller than the protrusion amount of the overpass protrusion 47.

  As described above, according to the modeling head according to the present embodiment, a plurality of the concave and convex portions 49 are intermittently arranged on the guide surface 45 in the circumferential direction. It becomes possible to adjust by one uneven | corrugated | grooved part 49 unit, and the operativity of the modeling head 20 can be improved.

  The guide surface 45 includes a flat portion 50 and a minute protrusion 51. Therefore, when the sliding protrusion 44 passes through the single uneven portion 49 and then slides on the flat portion 50 and climbs over the minute protrusion 51, it is caused by overriding while restricting excessive vertical movement of the rotating member 22. A click feeling can be obtained via the rotating member 22. Thereby, it becomes possible to recognize that the sliding protrusion 44 has passed through one uneven portion 49, and the discharge amount of the contents can be reliably adjusted for each uneven portion 49. .

(Third embodiment)
Next, the modeling head of 3rd Embodiment which concerns on this invention is demonstrated with reference to FIG.
In the third embodiment, the same components as those in the second embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

  In the modeling head of the present embodiment, as shown in FIG. 7, a restricting portion 52 is provided instead of the minute protrusion 51. The restricting portion 52 is provided on a portion of the guide surface 45 located between the concavo-convex portions 49. The restricting portion 52 is engaged with the sliding protrusion 44 in the circumferential direction to restrict further rotational movement of the rotating member 22. The restriction part 52 extends downward from the flat part 50, and the front view shape of the restriction part 52 is formed in a rectangular shape extending in the vertical direction.

Moreover, in this embodiment, the sliding protrusion 44 is formed in the pentagon shape which protrudes upwards in front view. The sliding protrusion 44 includes an upper sliding portion 53 and a lower locking portion 54. The sliding portion 53 is formed in a triangular shape that protrudes upward in a front view. The locking portion 54 extends downward from the sliding portion 53, and is formed in a rectangular shape when viewed from the front. The sliding portion 53 slides on the climbing protrusion 47. The engaging part 54 restricts further movement of the sliding protrusion 44 in the circumferential direction by engaging with the restricting part 52 in the circumferential direction.
Note that the rotating member 22 whose further rotational movement is restricted by the restricting portion 52 can pass through the concavo-convex portion 49 that has passed immediately before by rotating toward the opposite side around the head axis O2. .

  As described above, according to the modeling head according to the present embodiment, since the restricting portion 52 is provided in the portion of the guide surface 45 located between the uneven portions 49, it passes through the single uneven portion 49. Thus, the sliding protrusion 44 can be reliably prevented from passing through the other uneven portion 49 unintentionally. Thereby, the discharge amount of the contents can be reliably adjusted for each uneven portion 49 unit.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, the modeling unit 27 may not be provided. In the second embodiment, the minute protrusion 51 may not be provided. Further, in the third embodiment, the front view shape of the restricting portion 52 may be formed in a shape different from the rectangular shape extending in the vertical direction.

  In the above-described embodiment, the rotation preventing portion 35 provided in a concave shape or a convex shape on each of the modeling portion 27 and the mounting portion 26 is engaged with each other, so that the relative rotation movement between the modeling portion 27 and the mounting portion 26 is achieved. Although regulated, the present invention is not limited to this. For example, the planar view shape of the inner peripheral surface of the modeling part 27 and the planar view shape of the outer peripheral surface of the mounting part 26 are each formed into a non-circular shape having the same shape and the same size. By fitting the mounting portion 26, the relative rotational movement between the modeling portion 27 and the mounting portion 26 may be restricted.

  The climbing protrusion 47 is not limited to that shown in the embodiment. For example, the climbing protrusion 47 may be formed in a semicircular shape when viewed from the front.

  In the above embodiment, the sliding protrusion 44 is provided on the rotating member 22 and the guide surface 45 is provided on the fixed member 21, but the present invention is not limited to this. For example, the sliding protrusion 44 may be provided on the fixed member 21, and the guide surface 45 may be provided on the rotating member 22.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 10 Aerosol container 12 Mouth part 16 Stem 20 Modeling head (discharge head)
21 Fixing member 22 Rotating member 26 Mounting portion 27 Modeling portion 28 Insertion portion 36 Molding hole 37 Modeling surface 40 Supply chamber 44 Sliding projection 45 Guide surface 47 Overpass projection 49 Uneven portion 50 Flat portion 51 Micro projection 52 Restriction portion

Claims (8)

A discharge head that is attached to an aerosol container in which contents are accommodated and discharges the contents by lowering a stem that is vertically movable to the mouth of the aerosol container in an upwardly biased state,
A fixing member fixed to the aerosol container so as to surround the stem from outside in the radial direction;
A rotation member that has an insertion portion that is inserted into the fixing member, and that is rotatably attached to the stem around the axis of the stem, and descends with rotation around the axis;
Either one of the fixing member and the insertion portion is formed with a guide surface that is opposed to the sliding protrusion provided in the other in the vertical direction and extends in the circumferential direction around the axis,
The guide surface is provided with a plurality of adjacent protrusions adjacent to each other in the circumferential direction so that the sliding projection can climb over the circumferential direction when the rotating member rotates about the axis.
The sliding protrusion and the climbing projection resist the upward biasing force of the stem by sliding the sliding projection on the climbing projection when the sliding projection gets over the climbing projection. And lowering the rotating member.   The discharge head according to claim 1, wherein base ends of the climbing protrusions adjacent to each other are directly connected in the circumferential direction. The climbing protrusion gradually decreases in the circumferential direction from the base end portion of the climbing protrusion toward the protruding end portion,
3. The ejection head according to claim 1, wherein a protruding end portion of the jumping protrusion is disposed on an inner side along the circumferential direction with respect to a base end portion of the jumping protrusion. The guide surface extends over the entire circumference in the circumferential direction,
The uneven part formed by the said some protrusion protrusion arrange | positioned adjacent to the said circumferential direction is arrange | positioned over the perimeter of the said guide surface, The any one of Claim 1 to 3 characterized by the above-mentioned. The discharge head described.   The unevenness part formed by the said some protrusion protrusion arrange | positioned adjacent to the said circumferential direction is intermittently arranged in the said guide surface by the said circumferential direction. 4. The discharge head according to any one of items 1 to 3.   The ejection head according to claim 5, wherein the guide surface includes a flat portion that connects the concavo-convex portions in the circumferential direction, and a minute protrusion formed on the flat portion.   A restricting portion is provided at a portion of the guide surface located between the concave and convex portions so as to be engaged with the sliding protrusion in the circumferential direction to restrict further rotational movement of the rotating member. The discharge head according to claim 5. The rotating member is
A mounting portion to be mounted on the stem;
Each of the contents discharged from the stem has a plurality of molding holes through which the contents pass, and a shaping surface through which the molding holes open, and each of the contents formed by passing through the plurality of molding holes separately. A plurality of modeling pieces to be combined on the modeling surface to form a modeled object, and
The supply chamber for supplying the contents discharged from the stem to each of the plurality of molding holes is provided between the mounting portion and the modeling portion. The discharge head according to claim 1.

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