JP2012012077A - Aerosol cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a one-touch type aerosol cap capable of surely preventing inadvertent operation of pressing down of a press-button without inviting loss of the intrinsic function of an aerosol container.SOLUTION: The aerosol cap includes: a cap body 20 capping an aerosol can 1 and having a pair of sidewalls 22 and a crowning section 21, the press-button 30 having a nozzle section 400 to which a jetting port is formed, and an overhang section 24 provided between the sidewalls 22; the pair of sidewalls 22 forming a gap 224 for operation by a finger at the end on the reverse side from the jetting port; the end surface of the side in the direction of jetting extending in a direction of coming further from the nozzle section going from the inner side to the outer side of the sidewalls 22; and the overhang section 24 including a reinforcing rib 241 forming a gap at the top of the nozzle section, fixed to the sidewalls 22, and resisting outside force applied to the overhang section 24.

Description

  The present invention relates to an aerosol cap for an aerosol container for spraying medicine or the like.

  The aerosol container has a structure in which contents are jetted by pushing down a valve stem provided at the upper part of the aerosol can. In order to facilitate the pressing of the valve stem, a push button is usually connected to the valve stem. For example, as shown in FIG. 11, the push button 30 has a nozzle part 400 provided with an injection port 40 and a flow path 42a extending to the nozzle part, and the contents that have passed through the valve stem are at a predetermined injection angle. Let spray. In the illustrated example, the ejection port 40 is formed by a minute hole provided in the ejection piece 36, and a pair of projecting pieces 35a that are vertically opposed to each other are provided on the tip side thereof. The injection piece 36 is formed separately from the column body 34a constituting the nozzle portion 400, and is embedded and fitted into the tip end portion of the column body 34a. In this example, the push button 30 is supported by the cap body 20 of the aerosol cap 2a. The cap body 20 includes a crown portion 21 to be fitted to the aerosol can, and side walls 22 rising from both sides of the crown portion. The push button 30 is located between the side walls 22 and the hinge piece 227. And connected to the cap body 20.

  It is necessary to prevent the push button from being inadvertently depressed when not in use. For this purpose, a cap that covers the push button is detachably attached to the aerosol can, or fixed to the aerosol can. A cap is used that has a pair of side walls that are mounted and a push button positioned between them. The former detachable cap needs to be removed every time it is used, but the latter one-touch cap can prevent the push button from being inadvertently pushed down without requiring such effort. In recent years, it has been widely used.

  The pair of side walls in the one-touch type cap extends to a position higher than the push button, and the end portions on the opposite side to the injection direction in the pair of side walls are spaced apart from each other so that the fingers can reach the push button. The end portions on the ejection direction side are separated so as to locate the nozzle portion therebetween.

  In recent years, with increasing frequency of use of aerosol-type fragrances and deodorants and expansion of usage space, it has been required to obtain a larger amount of injection flow by injecting at a wide angle. A structure that more reliably prevents contact with the jet flow is desired. For this purpose, the side wall end surfaces on the injection direction side are separated from each other from the inner side to the outer side of the side walls, and are opened so as to extend away from the nozzle portion, that is, the pair of side wall end surfaces in plan view. It is effective to have a substantially fan-shaped shape.

  However, if the side wall end face on the ejection direction side is thus open, the finger can reach the push button also from this end face side. As a result, if the user accidentally presses the push button from the ejection direction side, an unexpected situation may occur in which the ejected medicine is released toward the hand or the human body. However, at present, an aerosol cap that can sufficiently cope with this problem without impairing the original function of the aerosol container has not been realized with respect to the one-touch type aerosol cap.

  For example, in the aerosol cap described in Patent Document 1, a guard member is detachably provided so as to straddle the upper part of the wall portion surrounding the push button, and is attached when not in use to prevent the push button from being pushed down. Allows the button to be pressed down. However, this attaching / detaching operation is troublesome, and there is a drawback that the function cannot be obtained if the guard member is lost.

  The aerosol cap described in Patent Document 2 has a structure in which a member straddling between the side walls is arranged above the nozzle portion, and it is difficult for fingers to reach the push button from the ejection direction side. However, since the injection port is provided in the flange of the cylindrical portion that extends horizontally, the injection flow whose flow rate is increased at a wide angle may come into contact with the inner surface of the cylindrical portion in front of the side wall.

  The aerosol cap described in Patent Document 3 includes a plate-like member (button pressing piece) supported by a pair of side walls (top plate portion) and temporarily fixed to the injection direction side. When discharging the residual gas from the aerosol container, it is rotated to the opposite side of the injection direction, and is locked to both side walls at the rotation position to keep the injection button pressed down, and the residual gas is continuously released. . This button pressing piece makes it difficult for fingers to reach the push button from the ejection direction side in the temporarily fixed state, but both side walls require a temporary fixing structure, and the push button is pressed by an inverted plate-like button pressing piece. As a result, the shape and dimensions of the side wall and the push button are limited as a result of the need to place the upper end surface at the position.Accordingly, the aerosol cap itself is easy to reach between the side walls and the operability of the push button. The function will be limited.

JP 2004-113994 A (paragraphs 0027 and 0028, FIGS. 6 and 7) JP 2002-308360 A (paragraphs 0006 to 0008, FIGS. 1 to 3) Japanese Patent Laying-Open No. 2005-306451 (paragraphs 0009 to 0013, FIGS. 1 to 6)

  An object of the present invention is to solve these problems of the prior art and to provide a one-touch type aerosol cap that can reliably prevent inadvertent depression of the push button without impairing the original function of the aerosol container.

  In order to achieve the above-mentioned object, the present invention provides a cap body having a cylindrical crown portion covering an outer peripheral edge of an upper portion of the aerosol can, a pair of side walls extending upward from the crown portion, and a valve of the aerosol can A push button located between the side walls of the cap body in a state of being connected to the valve stem and having a nozzle portion that is connectable to the stem and formed with an injection port for the contents of the aerosol can, and an injection in the cap body A flange provided between the pair of side walls on the direction side, and the pair of side walls form a gap for allowing the finger to reach the injection button at the end opposite to the injection direction. The end surface on the injection direction side extends in a direction away from the nozzle portion as it goes from the inside to the outside of the side wall, and the flange portion is in a state where a gap is formed above the nozzle portion. Serial is fixed between a pair of side walls, there is provided an aerosol cap, characterized in that it comprises a reinforcing rib for combating external force acting on 該庇 unit.

  The aerosol cap according to the present invention includes a cap body having a cylindrical crown portion that covers the outer peripheral edge of the upper portion of the aerosol can, and a pair of side walls extending upward from the crown portion, Since the push button is positioned between the side walls and a gap is formed at the end opposite to the injection direction to allow the finger to reach the injection button, injection can be performed with a single touch while the aerosol cap is attached to the aerosol can. Can be done. Further, since the end surfaces on the injection direction side of the pair of side walls extend away from each other and away from the nozzle portion as they go from the inner side to the outer side of the side walls, the injection flow is prevented from contacting the side wall end surfaces. Yes.

  Further, the aerosol cap includes a flange portion provided between the pair of side walls on the injection direction side of the cap body, and the flange portion is fixed between the pair of side walls above the nozzle portion. Even if the side wall end faces are largely separated from each other to prevent contact with the jet flow, the hooks prevent the fingers from reaching the push button. In addition, since the collar portion is fixed between the pair of side walls in a state where a gap is formed above the nozzle portion, a temporary fixing structure on the side walls and an arrangement for continuously pushing down the push button may be required. In addition, the arrangement of the collar does not limit the shape and dimensions of the side wall and the push button, and the structure of the aerosol cap is not limited. Furthermore, since the collar part is provided with a reinforcing rib to counter the external force acting, the external force acting during packing, transportation, display, etc. of the aerosol cap and the aerosol container damages the collar part and the nozzle part. , And safety against erroneous operation from the injection direction side is ensured.

  In many cases, an aerosol container equipped with an aerosol cap is packaged with a shrink film at the time of shipment. In this regard, if the end surfaces of the pair of side walls are largely separated from each other, the film may be greatly bent at the separated portion to cause wrinkles or damage. However, in the present invention, the hooks are paired above the nozzle part. Since the shrink film is fixed between the side walls, the shrink film is supported by the flange portion, and the occurrence of wrinkles and breakage is prevented.

  The reinforcing rib may extend so that an end portion reaches the side wall. Thereby, the external force acting on the reinforcing rib is also supported by the side wall, and the reinforcing effect is further increased.

  The reinforcing rib may extend in a direction crossing an extending direction of the flange portion extending between the pair of side walls. The external force acting on the buttock often acts obliquely from the top when packing, transporting, displaying, etc., to an aerosol container fitted with an aerosol cap, but the direction in which the reinforcing rib crosses the extending direction of the buttock Thus, it is possible to effectively support such an external force along the direction of action.

  The flange may be provided at a position lower than the upper end surface of the side wall with a step, and the upper end surface of the reinforcing rib may extend from the upper end surface of the side wall to the upper surface of the flange. . As described above, the rib is provided at a position lower than the upper end surface of the side wall with a step, whereby a reinforcing rib can be provided at the step portion. And the reinforcement rib can ensure the height and can show a high reinforcement effect by having the upper end surface extended from the upper end surface of a side wall to the upper surface of a collar part. Further, based on the above step, the flange can be provided so as to rise to the injection direction side, and since this inclination is a direction along the spread of the injection flow, the injection flow contacts the flange. Can be prevented more reliably.

  The upper end surface of the said collar part shall be provided in the same height as the upper end surface of the said side wall. Thereby, a side wall and a collar part continue in an upper end surface, and the simple outstanding external appearance is obtained. In this case, the reinforcing rib can be provided on the upper surface or the lower surface other than the upper end surface of the collar portion.

  The reinforcing rib may be provided so as to extend between the pair of side walls. Since the eaves part extended between a pair of side walls extends long in the extending direction, by providing the reinforcing rib in this direction, it is possible to efficiently provide a counter force against an external force.

  As described above, according to the present invention, it is possible to provide a one-touch type aerosol cap that can reliably prevent inadvertent depression of the push button without impairing the original function of the aerosol container.

It is a perspective view showing the state where the aerosol cap concerning one embodiment of the present invention was equipped in the aerosol can. It is the perspective view which looked at the aerosol cap shown in FIG. 1 from diagonally upper front. It is the perspective view which looked at the aerosol cap shown in FIG. 1 from diagonally upper back. It is the perspective view which looked at the aerosol cap shown in FIG. 1 from diagonally lower front. It is a side view of the aerosol cap shown in FIG. It is a bottom view of the aerosol cap shown in FIG. It is a perspective view of the principal part of the aerosol cap shown in FIG. It is a perspective view which shows the push button in the aerosol cap of FIG. 7 with the cross section which follows a center plane. FIG. 9 shows the push button of FIG. 8, (a) is a longitudinal side view, and (b) is a front view of the central part thereof. It is a perspective view which shows the aerosol cap which concerns on other embodiment of this invention. It is the perspective view which looked at the conventional aerosol cap from diagonally upper front.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The same or similar parts in the drawings are denoted by the same reference numerals and description thereof is partially omitted.

  FIG. 1 is a perspective view showing a state in which an aerosol cap according to an embodiment of the present invention is mounted on an aerosol can, and FIGS. 2 to 6 show the aerosol cap as seen from various angles. Below, for convenience of explanation, the injection direction side in the aerosol cap will be described as the front side, and the operation side will be described as the rear side.

  The aerosol can 1 has a general form in which an upper portion of a bottomed cylindrical can body 11 is closed with a mounting cup 12 and a valve stem 13 is provided at the center thereof. The outer peripheral edge portion 14 at the upper portion of the can body 11 is a winding fastening portion between the can body 11 and the mounting cup 12, and the aerosol cap 2 is fitted therein.

  The aerosol cap 2 includes a cap body 20 having a cylindrical crown 21 that covers the outer peripheral edge 14 of the upper portion of the aerosol can 1, and a pair of side walls 22 that extend upward from the crown, and a valve stem of the aerosol can. 13 and a push button 30 for injecting the contents of the aerosol can through the valve stem through the injection port 40 by being pushed down.

  The crown portion 21 of the aerosol cap 2 has a cylindrical shape and is elastically deformed at the lower end portion so that it can be detached from the outer peripheral edge portion 14 of the aerosol can 1 and is usually attached to the aerosol can 1. Used in state. The side wall 22 includes an outer wall 221 that extends upward from the crown portion 21, a top wall 222 that extends radially inward from the upper end of the outer wall, and an inner wall 223 that extends downward from the top wall. The pair of side walls 22 are spaced apart from each other to form a gap at the injection direction side (front side) and the opposite side (rear side) ends. The rear (operation side) gap 224 is formed with a size that allows the finger to reach the push button 30 during the aerosol injection operation. Thereby, it can spray by one touch, with the aerosol cap 2 mounted on the aerosol can 1. The front end walls 225 on the ejection direction side of the pair of side walls 22 extend substantially in the radial direction so as to open from the inner wall 223 to the outer wall 221 in a substantially fan shape in plan view. A space between the front end wall 225 and the crown portion 21 is covered with a front lower wall 226.

  As shown in FIGS. 7 to 9, the push button 30 includes a peripheral wall 31 extending in the vertical direction and an upper wall 32 covering the upper end of the peripheral wall, and the lower side is open. The injection direction side portion of the peripheral wall 31 is thick, and a stem insertion hole 33 extending in the vertical direction is formed there. The lower end portion of the stem insertion hole 33 has a tapered shape that extends downward, so that the valve stem 13 can be easily inserted. The terminal end (upper end) of the stem insertion hole 33 is continuous with the proximal end of the first outflow path 41 through which the contents of the aerosol can pass, and the first outflow path 41 extends in the extending direction of the stem insertion hole 33 and extends to the distal end. Is closed as a closed portion 411.

  In the present embodiment, the stem insertion hole 33 is formed by a straight hole having the same inner diameter. The first outflow passage 41 is formed by a tip pore whose rear inner wall is inclined. Thereby, the flow of the fluid at the time of ejection can be efficiently guided to the ejection port 40. The stem insertion hole 33 and the first outflow passage 41 are arranged on the same axis. The stem insertion hole 33 and the first outflow passage 41 can be released in the downward direction J (FIG. 8) in the mold (not shown) because there is no enlarged diameter portion in the middle. The stem insertion hole 33 is formed with a diameter larger than that of the first outflow passage 41, so that a step portion 331 is formed at the boundary with the first outflow passage 41. This step 331 serves as a stopper for the valve stem 13 to be inserted.

  The push button 30 is formed with a second outflow path 42 that has a base end that is orthogonal to the first outflow path 41 and that opens to the outside of the peripheral wall 31. The second outflow passage 42 is formed by a straight hole having the same inner diameter, and communicates with the first outflow passage 41 below the closing portion 411.

  A column body 34 protrudes from the front wall 311 of the push button 30 in which the first outflow path 41 is formed, and the column body 34 intersects the central axis C (FIG. 9) of the first outflow path 41 (this embodiment). A second outflow passage 42 extending along an axis G that is orthogonal in the form is opened at the tip surface to form an injection port 40. In the present embodiment, the column body 34 is exemplified as a cylinder, but the column body 34 can also be a columnar shape such as an elliptical column, a long column, a rectangular column, a hexagonal column, or an octagonal column.

  The second outflow path 42 extends to a position in the vicinity of the first outflow path 41 so that the injection port 40 is located at the radial center of the cap body 20. Based on this, when the aerosol cap is resin-molded, the second mold for forming the second outflow passage (not shown) is used with respect to the first mold for forming the first outflow passage (not shown). It is possible to reduce the size of the second mold by using a mold configuration in which the mold is removed in a direction away from the mold. Since the second mold has a thin needle-like portion at the tip so as to form the injection port 40, by forming such a short, the needle-like portion can be prevented from being bent or bent, and can be safely and reliably. Molding becomes possible.

  A protruding piece 35 is provided on the front end surface of the column 34 so as to protrude in a direction along the axis G (FIG. 8). The projecting piece limits the width in one direction in the cross section of the jet flow from the jet port and allows diffusion in a direction perpendicular to the width direction. In the present embodiment, a pair of protruding pieces 35 are provided facing each other in the vertical direction, and the gap 350 between the protruding pieces 35 allows the horizontal flow of the jet flow from the jet port 40. Limit the vertical width. Thereby, the horizontal injection angle of the injection flow from the injection port 40 becomes larger than the vertical injection angle, and a fan-shaped injection pattern spreading in the horizontal direction is obtained. The projecting piece 35 can adjust the spreading form of the jet flow by setting the projecting length or the facing interval. FIG. 2 schematically shows an example of an injection flow F when the aerosol cap 2 is attached to an aerosol can and injection is performed. Moreover, since the surface which the protrusion piece 35 faces consists of a wall surface extended along the axis line G, the core can be released in the outflow direction of the second outflow path during resin molding. Thus, in the present embodiment, it is possible to integrally form the injection port, which has conventionally been provided as a separate part, with the push button 30. As a result, the number of parts and the number of assembly steps can be reduced.

  A portion extending along the injection direction (axis G) in the push button 30, that is, a portion surrounding the second outlet channel 42, the injection port 40, and the gap 350 in the front wall 311, the column 34, and the protruding piece 35 of the push button 30. The nozzle part 400 for the content injection is configured. As described above, the nozzle portion 400 is integrally formed with the push button 30. Therefore, as shown in FIG. 2, the injection port 40 in the present embodiment is a conventional product (provided in a separate injection piece ( Compared to FIG. 11), the aerosol cap 2 is positioned substantially in the center.

  As described above, the front end walls 225 of the pair of side walls 22 extend so as to open in a substantially fan shape in plan view. That is, the front end walls 225 of the side walls are separated from each other and extend in a direction away from the nozzle portion 400 (particularly, the injection port 40) from the inside toward the outside. Thereby, even if the nozzle part 400 is integrally molded and the injection port 40 is located in the approximate center of the aerosol cap 2, it can prevent that an injection flow contacts a side wall front end surface. This contact prevention effect is effective even when the horizontal injection angle of the jet flow is larger than the vertical injection angle.

  The radially outer end edges of the front end wall 225 are separated from each other by a distance L as shown in FIG. This distance L is preferably 20 mm or more, and more preferably 43 mm or more. When the distance L is smaller than 20 mm, the effect of preventing contact with the jet flow cannot be sufficiently obtained. On the other hand, if the distance L is 43 mm or more, the effect of preventing contact with the jet flow can be sufficiently obtained even when the horizontal jet angle of the jet flow is particularly increased. The maximum value of the distance L corresponds to the diameter of the outer wall 221 of the side wall 22.

  Note that the column 34 secures the length of the second outflow passage 42 and stabilizes the injection from the injection port 40, but if the thickness of the front wall 311 and the processing accuracy of the second outflow passage 42 are sufficient, The column body 34 may be omitted, and the end face of the second outflow path 42 in the front wall 311 may be used as an injection port. In this case, the ejection pattern is determined by the gap 350 of the protruding piece 35 extending from the front wall 311.

  The push button 30 is located between the pair of side walls 22 of the cap body 20, and a hinge piece 227 (FIG. 2) extending from the front lower wall 226 is coupled to the lower portion of the front end of the push button 30. Can be rotated in the vertical direction by elastically bending. A concave portion 312 (FIG. 3) extending in the vertical direction is formed at the end portion on the operation side of the peripheral wall 31 of the push button 30. Correspondingly, a convex portion 212 extending in the vertical direction is provided at the operation-side end portion of the crown portion 21 of the cap body 20, and the concave portion 312 is guided in the vertical direction. Accordingly, the push button 30 is guided by the convex portion 212 by being pushed down with a finger, is rotated downward about the hinge piece 227, and is restored to the original position by releasing the push.

  In this embodiment, the cap body 20 has an outer diameter of 60 mm and a height of 50 mm, the push button 30 has a front and rear length of 36 mm, a left and right width of 24 mm, a height of 7 mm, and the column body 34 has a diameter. 1.3 mm, the protruding length in the direction of the axis G is 0.5 mm, the diameter of the second outflow passage 42 is 0.4 mm, and the thickness of the protruding piece 35 is 1.2 mm. These values are appropriately changed according to the function and application of the aerosol container or the aerosol cap.

  The cap body 20 further includes a flange 24 provided between the pair of side walls 22. The flange portion 24 extends in an arc shape between the pair of side walls 22 while being fixed to the front upper end. Therefore, even if the end surfaces of the side wall 22 on the injection direction side are largely separated from each other to prevent contact with the injection flow, the finger 24 prevents the fingers from reaching the push button. In addition, the flange portion 24 is formed between the pair of side walls in a state where the gap 25 (FIGS. 7 and 3) is formed above the nozzle portion 400 of the push button 30, in this embodiment, above the front wall 311 and the column body 34. It is fixed to. Therefore, the push button 30 does not require the movable support by the side wall and the arrangement for continuously pushing down the push button as described in the prior art, and the arrangement of the collar does not limit the shape and size of the side wall and the push button. .

  As shown in FIGS. 4 and 5, the flange 24 includes a reinforcing rib 241 on the lower surface. The reinforcing rib 241 is integrally formed along the flange portion 24, extends between the pair of side walls 22, and the end portion reaches the side wall 22, thereby strengthening the resistance force to the external force acting on the flange portion 24. . In particular, since the flange 24 extends long in the extending direction between the pair of side walls, the reinforcing rib 241 extending in this direction efficiently imparts a counter force against an external force. Moreover, since the edge part of the reinforcing rib 241 has reached the side wall 22, the external force which acts on the reinforcing rib is supported also by the side wall, and the reinforcing effect becomes higher. Furthermore, when the aerosol container is packaged with a shrink film, the shrink film is supported between the side walls 22 by the flange portion 24, so that occurrence of wrinkles and breakage is prevented.

  The upper end surface of the flange portion 24 is provided at the same height as the upper end surface of the side wall 22 and exhibits a simple and excellent appearance in which the side wall 22 and the flange portion 24 are continuous at the upper end surface. In this way, when the upper end surface of the flange portion 24 is provided at the same height as the upper end surface of the side wall 22, a reinforcing rib 241 is provided on the lower surface of the flange portion 24 as shown, and other than the upper end surface of the flange portion 24. It can also be provided on the top surface.

  Furthermore, in the present embodiment, a raised portion 242 is provided at the center of the flange portion 24 in the length direction. The central portion of the flange 24 is a place where the resin flowing into the mold meets from both side walls during resin molding, and it is easy to generate a weld line, and even if it does not occur, it causes a local decrease in strength. There is. The raised portion 242 has a function of securing strength by concentrating the resin here.

  In order to use the aerosol cap 2, the crown portion 21 may be fitted to the outer peripheral edge portion 14 of the upper portion of the can body 11 in the aerosol can 1. As a result, the valve stem 13 of the aerosol can 1 is inserted into the stem insertion hole 33. When a finger is extended to the rear gap 224 between the side walls 22 and the upper wall 32 of the push button 30 is pushed, the push button 30 is pivoted about the hinge piece 227 and lowered to push down the valve stem 13. As a result, the contents of the aerosol can 1 are injected from the injection port 40 through the first outflow passage 41 through the second outflow passage 42 and are widely diffused in the horizontal direction by the gap 350 between the pair of protruding pieces 35. It becomes a flow. When the pressing force on the push button 30 is released, the push button 30 returns to the original position by the elasticity of the hinge piece 227, and the valve stem 13 rises to stop the injection.

  FIG. 10 is a perspective view showing an aerosol cap according to another embodiment of the present invention. The aerosol cap 2a has the same basic configuration as that of the previous embodiment, including a cap body 20 having a crown portion 21 and a side wall 22, and a push button 30 connectable to a valve stem. However, in this embodiment, the flange 24a is provided at a lower position with a step from the top wall 222 of the side wall 22. The flange 24a extends in a flat plate shape and is inclined so as to slightly rise from the end on the side wall 22 side toward the injection direction. Since this inclination is in a direction along the spread of the jet flow, it is possible to more reliably prevent the jet flow from coming into contact with the flange portion 24a. The flange portion 24a includes a pair of reinforcing ribs 241a. The pair of reinforcing ribs 241a extends forward from the direction perpendicular to the extending direction of the flange 24a, that is, from the front end of the side wall 22. The reinforcing rib 241a is provided at the height of the step between the side wall 22 and the flange portion 24a, thereby providing a high reinforcing effect based on a sufficient height. Further, the upper end surface of the reinforcing rib 241a is continuous with the upper end surface of the side wall 22 and reaches the upper surface of the flange portion 24a, thereby providing a simple and excellent appearance.

  In the push button 30 of the aerosol cap 2a, the column 34a constituting the nozzle portion 400a extends forward from the front wall 311 of the peripheral wall 31 and reaches the vicinity of the crowned portion 21 in the radial direction. A second outflow passage 42a extending along the axis G is opened at the distal end surface to form an injection port 40. A pair of projecting pieces 35a facing in the up-down direction are provided on the front end face of the column 34a. The projecting piece 35a is configured in the same manner as in the previous embodiment, and the gap 350 between the projecting pieces 35a allows the horizontal flow with respect to the jet flow from the jet port 40, and the width in the vertical direction. By limiting this, a fan-shaped spray pattern is formed in which the horizontal spray angle is larger than the vertical spray angle and spreads in the horizontal direction.

  When the aerosol cap 2a is resin-molded, the cap body 20 and the push button 30 can be integrally molded in the same manner as in the previous embodiment. However, since the column 34a extends long, the second mold that is die-cut along the second outflow path 42 also extends long. Accordingly, it is desirable to increase the strength by increasing the diameter of the second mold by making the diameter of the second outflow passage 42 larger than that of the injection port 40. In this case, the injection piece 36 which comprises the injection port 40 and the protrusion piece 35a is shape | molded as a separate member, and is couple | bonded by fitting etc. to the front-end | tip part of the column 34a.

  Also in this aerosol cap 2a, the front end walls 225 on the injection direction side of the pair of side walls 22 extend substantially radially so as to open from the inner wall 223 to the outer wall 221 in a substantially fan shape in plan view. The space between the portions 21 is covered with a front lower wall 226. Therefore, the front end walls 225 of the pair of side walls 22 are separated from each other and extend in a direction away from the nozzle portion 400 as they go from the inside to the outside of the side walls. Thereby, it is prevented that an injection flow contacts a side wall end surface, and this contact prevention effect acts effectively also in the case of an injection flow wide in a horizontal direction. Since this aerosol cap 2a can be used in the same manner as in the previous embodiment, its description is omitted.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various change is possible unless it deviates from the meaning. For example, if the strength of the ridge is sufficient, the reinforcing rib can be omitted. Moreover, if the insertion of fingers from the jetting direction side can be prevented and the shrink film can be supported, the ridge can be formed by cutting out a part of the extending direction.

  The jet flow may be a jet pattern that spreads in the vertical direction or a jet pattern that spreads equally in the horizontal and vertical directions. The former injection pattern can be formed, for example, by making a pair of protruding pieces face each other in the horizontal direction. The latter injection pattern is formed, for example, by providing a projecting piece having a circular hole having a diameter larger than that of the injection port at the center, or by omitting the projecting piece and directly injecting from the injection port. can do.

  In addition to being coupled to the cap body so as to be able to rotate in the vertical direction, the push button can also be provided so as to be slidable in the vertical direction while being guided by a recess recessed from the top of the cap body. For example, it can be set as the structure which provided the elastic force upwards with elastic members, such as a spring arrange | positioned at a recessed part.

  The cap main body, the push button, and the projecting piece may be all molded integrally, or a part or each of them may be molded separately and bonded to each other by bonding, fitting, screwing, or the like.

1: Aerosol 2, 2a: Aerosol cap 13: Valve stem 20: Cap body 21: Crowning portion 22: Side wall 24, 24a: Gutter 30: Push button 40: Injection port 241, 241a: Reinforcement rib 400, 400a: Nozzle part

Claims (6)

A cap main body having a cylindrical crown covering the outer peripheral edge of the upper portion of the aerosol can, and a pair of side walls extending upward from the crown;
A push button that is connectable to the valve stem of the aerosol can, has a nozzle part formed with an injection port for the contents of the aerosol can, and is positioned between the side walls of the cap body in a state connected to the valve stem;
A collar provided between the pair of side walls on the injection direction side of the cap body,
The pair of side walls form a gap for allowing fingers to reach the injection button at the end opposite to the injection direction, and the end surface on the injection direction side increases from the inner side to the outer side of the side wall. Extending in a direction away from the nozzle,
The flange portion is fixed between the pair of side walls in a state where a gap is formed above the nozzle portion, and includes a reinforcing rib for resisting an external force acting on the flange portion. Aerosol cap to do.   The aerosol cap according to claim 1, wherein the reinforcing rib extends so that an end thereof reaches the side wall.   The aerosol cap according to claim 1 or 2, wherein the reinforcing rib extends in a direction crossing an extending direction of the flange portion extending between the pair of side walls.   The flange portion is provided at a position lower than the upper end surface of the side wall with a step, and the upper end surface of the reinforcing rib extends from the upper end surface of the side wall to the upper surface of the flange portion. The aerosol cap according to any one of claims 1 to 3.   The aerosol cap according to any one of claims 1 to 3, wherein an upper end surface of the flange portion is provided at the same height as an upper end surface of the side wall.   The aerosol cap according to any one of claims 1 to 5, wherein the reinforcing rib is provided so as to extend between the pair of side walls.

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