JP5049847B2 - Aerosol container with cap - Google Patents

Description

  The present invention relates to an aerosol container with a cap.

As an aerosol container with a cap of this type, for example, as shown in Patent Document 1 below, an aerosol container including a stem erected in an upward biased state and a spray head attached to the stem, A configuration is known that includes a cap that is detachably attached to an aerosol container and covers a spray head. Such a capped aerosol container is required to be disposed of in a state where the residual gas in the aerosol container is completely discharged. Therefore, in the above-mentioned aerosol container with a cap, a part of the top wall of the cap can be separated, and when the aerosol container is discarded, the separation piece separated from the top wall of the cap is sprayed from the top wall of the cap. By being inserted between the head and the head, the spray head is pushed down to discharge the residual gas.
JP 2001-31158 A

  However, in the above-mentioned conventional aerosol container with a cap, since the amount of pressing down of the spray head when discharging the residual gas is constant, the amount of gas discharged cannot be adjusted, and the gas cannot be gradually discharged.

  The present invention has been made in consideration of the above-described conventional problems, and an object of the present invention is to provide an aerosol container with a cap that can adjust a gas discharge amount when discharging a residual gas.

  An aerosol container with a cap according to the present invention includes an aerosol container having a stem standing in an upward biased state and a spray head attached to the stem, and is detachably attached to the aerosol container to cover the spray head. An aerosol container with a cap, wherein the cap is detachably mounted on the aerosol container, and the rotation is rotatably mounted on the cap body portion around a cap center axis. A cap ceiling portion that is disposed above the spray head and has an opening formed in a central portion in plan view, and is suspended from the cap ceiling wall portion. A cap peripheral wall engaged with the aerosol container, and disposed inside the opening in a plan view perpendicular to the cap central axis. And a pressing portion disposed above the spray head, and an elastically deformable spring portion that connects the cap top wall portion and the pressing portion, and the rotating portion includes the cap top wall A rotating ceiling wall portion disposed above the rotating portion, and an engaging portion disposed below the rotating ceiling wall portion and engaged with the pressing portion, wherein the pressing portion and the engaging portion At least one of them is characterized in that an engagement surface that is slidably contacted with the other and inclined with respect to the cap central axis is formed.

Due to such a feature, when the rotating portion and the cap body portion are relatively rotated about the cap center axis, the engaging portion is rotated about the cap center axis relative to the pressing portion, and the pressing portion and the engaging portion are rotated. Either one or both of the joint portions slide on the engaging surface inclined with respect to the cap center axis. Thereby, the engaging portion presses the pressing portion downward, and the pressing portion is pressed down while the spring portion is elastically deformed downward. At this time, the pressing amount of the pressing portion changes according to the relative rotation angle between the rotating portion and the cap body portion. Then, the spray head is pushed down by the pressing portion, and the gas in the aerosol container is discharged.
In addition, when the gas in the aerosol container is being discharged as described above, if the relative position between the rotating part and the cap body part is restored by rotating the rotating part in the direction opposite to the above rotation, The pressing of the pressing part by the joint part is released, and the pressing part is pulled up to the original position by the elastic restoring force of the spring part. Thereby, the lowering of the spray head by the pressing unit is released, and the discharge of the gas in the aerosol container is stopped.

  Further, in the aerosol container with a cap according to the present invention, the pressing part has a cylindrical shape extending in the cap central axis direction, and the rotating part has the cap from the lower surface of the rotating ceiling wall part. It is preferable that a guide portion that is suspended in the central axis direction and that is inserted inside the pressing portion is provided.

  Thereby, when an engaging part presses a pressing part, a pressing part is pushed down straight in the cap center axis line direction along the internal peripheral surface of a guide part.

  In the aerosol container with a cap according to the present invention, it is preferable that the spring portion has a bent or curved shape in a plane perpendicular to the cap central axis.

  As a result, the spring portion is easily deformed in the cap central axis direction, and the allowable deformation amount of the spring portion is increased.

  In the aerosol container with a cap according to the present invention, it is preferable that a connection end portion connected to the pressing portion of the spring portion is connected to an outer edge of the opening via a weakened portion that is easily broken. .

  As a result, in a state where the rotating portion does not rotate around the cap center axis relative to the cap body portion, the connecting end portion on the pressing portion side of the spring portion is connected to the cap body portion via the weakening portion. Therefore, deformation of the spring portion in the cap central axis direction is restricted. On the other hand, when the rotating part rotates around the cap center axis relative to the cap body part and the engaging part presses the pressing part, the weakened part is broken and the spring part can be deformed in the direction of the cap center axis. Thus, the pressing portion is pushed down and the spring portion is elastically deformed downward.

According to the aerosol container with a cap according to the present invention, by rotating the rotating portion around the cap center axis relative to the cap main body portion, either one or both of the pressing portion and the engaging portion, The sliding portion slides on the engaging surface inclined with respect to the cap center axis, the engaging portion pushes down the pressing portion, and the pressing portion pushes down the spray head. By adjusting this, it is possible to adjust the push-down amount of the push-down portion, and it is possible to adjust the gas discharge amount when discharging the residual gas.
In addition, when the gas in the aerosol container is being discharged, the rotating part is rotated in the opposite direction to the above rotation, and the relative position between the rotating part and the cap body part is returned to the original position. Since the gas discharge is stopped, the discharge of the residual gas can be interrupted.

  Hereinafter, embodiments of an aerosol container with a cap according to the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view of an aerosol container 1 with a cap according to the present embodiment, FIG. 2 is a transverse sectional view between AA shown in FIG. 1, and FIG. 3 is a perspective view of a cap main body 4 which will be described later. 4 is a perspective view of the rotating unit 5 described later, FIG. 5 is a longitudinal sectional view of the aerosol container 1 with a cap at the time of degassing, and FIG. 6 is a transverse section between BB shown in FIG. FIG.
In the present embodiment, the aerosol container 2 side (lower side in FIG. 1) is the lower side and the opposite side (upper side in FIG. 1) is the upper side when viewed from the cap 3 described later. A chain line L shown in FIG. 1 indicates the central axis of the aerosol-capped cap 1 and is simply referred to as “axis L” hereinafter. The direction of the axis L is hereinafter simply referred to as “axial direction”, and the direction orthogonal to the axis L (the radial direction of the cap 3 to be described later) is hereinafter simply referred to as “radial direction”, and is the direction around the axis L. Hereinafter, the direction along the outer peripheral surface of the cap 3 to be described later is simply referred to as “circumferential direction”. A plane perpendicular to the axis L is hereinafter simply referred to as “plane”.

  As shown in FIG. 1, the aerosol container 1 with a cap includes an aerosol container 2 and a cap 3 that is detachably attached to the aerosol container 2.

The aerosol container 2 includes a container body 20 filled with gas, a stem 21 erected on the container body 20 in an upwardly biased state, and a spray head 22 attached to the stem 21.
The container body 20 includes a bottomed cylindrical body portion 23 and a shoulder portion 24 provided at the upper end of the body portion 23, and a mounting cup 25 is wound around the upper end opening of the shoulder portion 24. Yes. The shoulder portion 24 has an outer peripheral surface shape that is gradually reduced in diameter as it goes upward in the direction of the axis L. The stem 21 is a cylindrical portion extending in the axial direction, and is disposed so as to be able to be pushed down. The spray head 22 is formed with a communication passage (not shown) that is fitted to the stem 21 and communicates with the inside of the stem 21, and a spray port (not shown) that communicates with the communication passage. .

  The cap 3 is an overcap that covers the spray head 22 described above, and has a schematic configuration that the cap body 4 is detachably attached to the aerosol container 2 and can be rotated around the axis L on the cap body 4. And an attached rotating part 5.

  As shown in FIGS. 1 to 3, the cap main body 4 includes a cap top wall 40 disposed above the spray head 22, a cap peripheral wall 41 suspended from the cap top wall 40, and a cap ceiling. A fitting wall portion 42 erected from the upper surface of the wall portion 40, a pressing portion 43 disposed above the spray head 22, and an elastically deformable spring that connects the cap top wall portion 40 and the pressing portion 43. Part 44.

  The cap top wall portion 40 is a plate portion having a circular shape in plan view disposed perpendicular to the axis L. An opening 40 a is formed in a central portion of the cap top wall portion 40 in a plan view and forms a circle substantially concentric with the outer edge of the cap top wall portion 40. Further, on the upper surface of the cap top wall portion 40, there is a lower stopper portion 45 that engages with an upper stopper portion 55 of the rotating portion 5 described later to restrict the rotation of the cap main body portion 4 and the rotating portion 5 around the axis L. Projected. The lower stopper portion 45 is a convex portion whose upper surface is formed along the vertical plane of the axis L, and a plurality (three in FIG. 2) are equally arranged in the circumferential direction.

  The cap peripheral wall portion 41 is a cylindrical portion extending in the axial direction with the axis L as the central axis, and is suspended from the outer edge portion of the cap top wall portion 40 and engaged with the aerosol container 2. More specifically, a locking portion 46 bulging radially inward is formed on the inner peripheral surface of the lower end portion of the cap peripheral wall portion 41, and the locking portion 46 is formed on the aerosol container 2. By engaging with the lower side of the mounting cup 25, the lower end portion of the cap peripheral wall portion 41 is undercut fitted to the mounting cup 25.

  The fitting wall portion 42 is a cylindrical guide portion that guides the rotation of the rotating portion 5 around the axis L, is erected from the outer edge portion of the cap top wall portion 40, and is axially centered on the axis L. It is extended. The upper end surface of the fitting wall portion 42 is separated from the lower surface of the rotating ceiling wall portion 50 of the rotating portion 5 described later. Moreover, the outer diameter of the fitting wall part 42 is smaller than the outer diameter of the cap surrounding wall part 41, and the fitting wall part 42 and the cap surrounding wall part 41 are formed in the step shape over the perimeter. On the outer peripheral surface of the fitting wall portion 42, an engagement convex portion 47 protruding outward in the radial direction is formed over the entire circumference. The engaging protrusion 47 extends in parallel with the vertical plane of the axis L with the axis L as the center.

  Further, on the inner peripheral surface of the fitting wall portion 42, an outer stopper portion that engages with an inner stopper portion 57 of the rotating portion 5 described later and restricts rotation of the cap main body portion 4 and the rotating portion 5 around the axis L. 48 is provided. The outer stopper portion 48 is a convex portion protruding radially inward from the inner peripheral surface of the fitting wall portion 42 and extends along the axial direction. The outer stopper portion 48 includes a first outer stopper portion 48A that engages with the inner stopper portion 57 in a normal state before the pressing portion 4 is pushed down, and an inner stopper portion 57 in the degassing state where the pressing portion 43 is pushed down. And a second outer stopper portion 48B to be engaged. The first outer stopper portions 48A and the second outer stopper portions 48B are alternately arranged at intervals in the circumferential direction. More specifically, the first outer stopper portion 48A and the second outer stopper portion 48B disposed on one side in the circumferential direction of the first outer stopper portion 48A (the clockwise direction side in FIG. 2) are paired with each other. The inner stopper portion 57 is configured to be movable in a circular arc in the circumferential direction between the pair of first outer stopper portions 48A and the second outer stopper portion 48B. The pair of first and second outer stopper portions 48A and 48B are arranged in a plurality in the circumferential direction (three sets in FIG. 2).

  Further, on the inner peripheral surface of the fitting wall portion 42, a protruding portion 49 that is smaller in projection amount (the length in the radial direction) than the outer stopper portion 48 and that is engaged with an inner stopper portion 57 described later is formed. Has been. The convex portion 49 is a substantially semicircular bulging portion in plan view that protrudes from the inner peripheral surface of the fitting wall portion 42, and extends along the axial direction. Further, the convex portion 49 is formed on the first outer stopper portion 48A in the circumferential direction between the pair of first and second outer stopper portions 48A and 48B (within an arc movement range R of the inner stopper portion 57 described later). They are disposed at a position close to each other and a position close to the second outer stopper portion 48B. More specifically, the convex portion 49 is provided on one side in the circumferential direction of the first outer stopper portion 48A and on the other side in the circumferential direction of the second outer stopper portion 48B (counterclockwise direction side in FIG. 2). Each is arranged.

  Further, a gas vent groove 6 for discharging the gas inside the rotating portion 5 to the outside is formed on the outer peripheral surface of the fitting wall portion 42 and the upper surface of the cap peripheral wall portion 41. One end of the gas vent groove 6 is opened at the upper end of the fitting wall portion 42, extends from the upper end of the fitting wall portion 42 to the upper end of the cap peripheral wall portion 41 along the axial direction, and further toward the radially outer side. The other end is opened at the outer peripheral surface of the cap peripheral wall portion 41. A plurality of the gas vent grooves 6 are formed at intervals in the circumferential direction.

  The pressing portion 43 is a cylindrical portion that extends in the axial direction with the axis L as the central axis. The pressing portion 43 has an outer diameter smaller than the diameter of the opening 40a of the cap ceiling wall portion 40, and in a plan view, a gap is formed between the outer edge of the opening 40a and the outer peripheral surface of the pressing portion 43, so Arranged inside the opening 40 a of the wall 40. The pressing portion 43 includes a cylindrical tube portion 10 having both ends opened, and a convex wall portion 11 erected on the upper end surface of the tube portion 10.

  The upper and lower end surfaces of the cylindrical portion 10 are formed along the vertical plane of the axis L, and the upper end surface of the cylindrical portion 10 is formed in the same plane as the upper surface of the cap top wall portion 40, and The end surface is formed with a gap between it and the upper surface of the spray head 22.

  The convex wall portion 11 is a wall portion formed in an arc shape in plan view along the cylindrical portion 10, and the radially inner side surface of the convex wall portion 11 is formed flush with the inner peripheral surface of the cylindrical portion 10. The radially outer surface of the wall portion 11 is formed flush with the outer peripheral surface of the cylindrical portion 10. Further, the convex wall portion 11 is a wall portion having a trapezoidal shape in a side view. Specifically, the upper surface of the convex wall portion 11 is formed along the vertical plane of the axis L, and the side surface on one side in the circumferential direction of the convex wall portion 11 is formed along the axis L. The side surface (first engagement surface 11a) on the other circumferential side of the convex wall portion 11 is inclined with respect to the axis L so that the width (circumferential length) of the convex wall portion 11 gradually decreases toward the upper side. Has been. A plurality (three in FIG. 2) of the convex wall portions 11 having the above-described configuration are equally arranged at intervals in the circumferential direction.

  The spring portion 44 is a rod-shaped member extending along the vertical plane of the axis L, and has a curved shape in the vertical plane of the axis L. More specifically, the spring portion 44 extends around the axis L, that is, extends in the circumferential direction along the outer edge of the opening 40 a of the cap top wall portion 40 and the outer peripheral surface of the pressing portion 43. Specifically, the spring portion 44 is formed in an arc shape in plan view. One end portion 44a (corresponding to the connecting end portion of the present invention) of the spring portion 44 is connected to the push-down portion 43, and the other end portion 44b of the spring portion 44 is the outer edge of the opening 40a of the cap top wall portion 40 ( Inner peripheral surface). Moreover, the one end part 44a of the spring part 44 is connected with the outer edge (inner peripheral surface) of the opening 40a of the cap top wall part 40 through the weakened part 12 which consists of thin parts etc. and is easy to fracture | rupture. A plurality (three in FIG. 2) of the spring portions 44 having the above-described configuration are equally arranged at intervals in the circumferential direction.

  As shown in FIGS. 1, 2, and 4, the rotating portion 5 includes a rotating ceiling wall portion 50 disposed above the cap ceiling wall portion 40, and a rotating peripheral wall portion 51 suspended from the rotating ceiling wall portion 50. An inner wall portion 52 disposed inside the rotating peripheral wall portion 51, a guide portion 53 disposed inside the inner wall portion 52, an engaging portion 54 protruding from the outer peripheral surface of the guide portion 53, It has.

  The rotating ceiling wall 50 is a plate portion having a circular shape in plan view disposed perpendicular to the axis L. On the lower surface of the rotating ceiling wall portion 50, an upper stopper portion 55 that protrudes from the cap body portion 4 and the rotating portion 5 around the axis L is provided so as to engage with the lower stopper portion 45 described above. The upper stopper portion 55 is a convex portion whose lower surface is formed along a vertical plane of the axis L. The upper stopper portion 55 is disposed on the inner side in the radial direction of the inner wall portion 52, and is disposed at a position corresponding to each of the plurality of lower stopper portions 45 described above, and a plurality (three in FIG. 2) in the circumferential direction. Evenly arranged. The lower surface of the upper stopper portion 55 is in contact with the upper surface of the lower stopper portion 45.

  The rotating peripheral wall portion 51 is a cylindrical portion extending in the axial direction with the axis L as the central axis, and is suspended from the outer edge portion of the rotating top wall portion 50. The rotating peripheral wall 51 is provided on the outer side in the radial direction of the cylindrical fitting wall 42, and the outer peripheral surface of the rotating peripheral wall 51 is formed substantially flush with the outer peripheral surface of the cap peripheral wall 41. Yes. The rotating peripheral wall 51 is engaged with the cap body 4 so as to be rotatable around the axis L. More specifically, a concave groove-like engagement groove portion 56 that is recessed radially outward is formed on the inner peripheral surface of the rotary peripheral wall portion 51 over the entire circumference, and the cap peripheral wall is formed inside the engagement groove portion 56. By fitting the engagement convex portion 47 of the portion 41, the rotating peripheral wall portion 51 is undercut fitted to the fitting wall portion 42. Further, the engagement convex portion 47 is movable in the circumferential direction inside the engagement groove portion 56, and the rotation peripheral wall portion 51 is rotatable around the axis L relative to the fitting wall portion 42. ing.

  The inner wall portion 52 is a cylindrical portion arranged coaxially with the rotary peripheral wall portion 51 with the axis L as a common axis, and is suspended along the axis L from the lower surface of the rotary ceiling wall portion 50. The inner wall portion 52 is disposed on the radially inner side of the fitting wall portion 42. Further, the lower end surface of the inner wall portion 52 is separated from the upper surface of the cap top wall portion 40.

  On the outer peripheral surface of the inner wall portion 52, a plurality of inner stopper portions 57 that engage with the outer stopper portion 48 and restrict the rotation of the cap body portion 4 and the rotating portion 5 around the axis L are provided in the circumferential direction (FIG. 2). Then three) are provided equally. The inner stopper portion 57 is a convex portion protruding radially outward from the outer peripheral surface of the inner wall portion 52 and extends along the axial direction. Further, the plurality of inner stopper portions 57 are respectively brought into contact with and locked on the side surface on one circumferential side of the first outer stopper portion 48A, and are fitted between the first outer stopper portion 48A and the convex portion 49. ing. The inner stopper portion 57 can get over the convex portion 49 with the relative rotation of the cap main body portion 4 and the rotating portion 5, and is between the pair of first and second outer stopper portions 48A and 48B. Within the range (arc movement range R), arc movement is possible with relative rotation of the cap main body 4 and the rotation unit 5.

  The guide portion 53 is a cylindrical portion disposed coaxially with the rotating peripheral wall portion 51 and the inner wall portion 52 with the axis L as a common axis, and is suspended along the axis L from the lower surface of the rotating top wall portion 50. . The guide portion 53 is longer in the axial direction than the rotating peripheral wall portion 51 and the inner wall portion 52, and the distal end portion (lower end portion) is inserted inside the pressing portion 43. The outer diameter of the guide portion 53 is substantially equal to the inner diameter of the pressing portion 43, and the outer peripheral surface of the distal end portion of the guide portion 53 inserted inside the pressing portion 43 is in sliding contact with the inner peripheral surface of the pressing portion 43. That is, the guide part 53 is slidable in the axial direction with respect to the pressing part 43.

  The engaging portion 54 extends downward from the lower surface of the rotating ceiling wall portion 50 and is formed in an arc shape in plan view along the outer peripheral surface of the guide portion 53. A plurality (three in FIG. 2) of the engaging portions 54 are arranged at regular intervals along the outer peripheral surface of the guide portion 53, and the plurality of engaging portions 54 are adjacent to each other. It arrange | positions between the convex wall parts 11, respectively. More specifically, the engaging portion 54 is a convex portion having a trapezoidal shape in a side view. The lower surface of the engaging portion 54 is formed along the vertical surface of the axis L, and is disposed opposite to the upper surface of the convex wall portion 11. In addition, the side surface (second engagement surface 54a) on one side in the circumferential direction of the engaging portion 54 is relative to the axis L so that the width (circumferential length) of the engaging portion 54 gradually decreases as it goes downward. And is in sliding contact with the first engagement surface 11a of the convex wall portion 11 described above. Further, the side surface on the other side in the circumferential direction of the engaging portion 54 is formed along the axis L, and is disposed to face the side surface on one side of the convex wall portion 11.

  Next, the action of the aerosol container 1 with a cap having the above-described configuration will be described.

First, since the one end portion 44a of the spring portion 44 is connected to the outer edge of the opening 40a of the cap top wall portion 40 via the weakened portion 12 in normal times, elastic deformation in the axial direction of the spring portion 44 is restricted. Has been. For this reason, the pressing portion 43 is held at a position separated from the spray head 22.
Further, since the inner stopper portion 57 is fitted between the first outer stopper portion 48A and the convex portion 49, the relative rotation around the axis L between the inner wall portion 52 and the fitting wall portion 42 is restricted. That is, the relative rotation around the axis L between the cap body 4 and the rotating part 5 is restricted.

  On the other hand, when the residual gas is discharged into the aerosol container 2, the cap body 4 and the rotating part 5 are relatively rotated about the axis L as shown in FIGS. 5 and 6. At this time, since the cylindrical fitting wall portion 42 is disposed inside the cylindrical rotating peripheral wall portion 51, the cap is formed by the inner peripheral surface of the rotating peripheral wall portion 51 and the outer peripheral surface of the fitting wall portion 42. The relative rotational movement around the axis L between the main body portion 4 and the rotating portion 5 is guided.

  As described above, when the cap body portion 4 and the rotating portion 5 are rotated relative to each other, the second engagement surface 54a presses the first engagement surface 11a downward, and the first engagement surface 11a is moved onto the second engagement surface. The mating surface 54a slides (in other words, the first engagement surface 11a slides on the second engagement surface 54a). More specifically, the first engagement surface 11a is relatively lowered along the second engagement surface 54a, and the convex wall portion 11 (first surface) of the pressing portion 43 is engaged by the engagement portion 54 (second engagement surface 54a). The engagement surface 11a) is pressed downward. Thereby, the shear stress concentrates on the weakened portion 12 interposed between the cap top wall portion 40 and the spring portion 44, and the weakened portion 12 is broken. When the weakened portion 12 is broken, the spring portion 44 can be elastically deformed downward, and the convex wall portion 11 of the pressing portion 43 is pressed downward by the engaging portion 54, so that the spring portion 44 is on the lower side. While being elastically deformed, the pressing portion 43 is pushed straight down along the inner peripheral surface of the guide portion 53 in the axial direction. As shown in FIG. 5, when the cap main body 4 and the rotating portion 5 are relatively rotated to the position where the engaging portion 54 is placed on the upper surface of the convex wall portion 11, the upper surface of the convex wall portion 11. Is held by the lower surface of the engaging portion 54, and the pressing portion 43 is held in a depressed state.

  At this time, since the amount of depression of the pressing unit 43 changes according to the relative rotation angle between the cap body 4 and the rotation unit 5, by adjusting the rotation angle between the cap body 4 and the rotation unit 5, The pressing amount of the pressing unit 43 is adjusted. Specifically, as the rotation angle between the cap main body 4 and the rotation unit 5 is smaller, the amount of depression of the pressing unit 43 is smaller. Further, since the spring portion 44 is formed in a curved shape (arc shape) and the length of the spring portion 44 is long, the spring portion 44 is easily elastically deformed in the axial direction, and the allowable deformation amount of the spring portion 44 is Therefore, it is possible to increase the amount by which the push-down portion 43 is pushed down.

  When the pressing unit 43 is pressed down, the lower end of the pressing unit 43 comes into contact with the upper end surface of the spray head 22 and the spray head 22 is pressed down. Then, the stem 21 is pushed down together with the spray head 22, and the residual gas in the aerosol container 2 is injected from the spray port (not shown) into the cap body 4.

  The residual gas injected into the cap main body 4 flows into the inside of the rotating portion 5 through the opening 40a of the cap top wall portion 40, and between the lower end surface of the inner wall portion 52 and the upper surface of the cap top wall portion 40. It flows into the space between the inner wall portion 52 and the fitting wall portion 42. Then, it passes between the upper end surface of the fitting wall portion 42 and the lower surface of the rotary ceiling wall portion 50, flows into the gas vent groove 6 from the upper end of the gas vent groove 6, and is discharged to the outside from the lower end of the gas vent groove 6. Is done.

  Further, as described above, when the cap main body portion 4 and the rotating portion 5 are relatively rotated, the cap top wall portion 40 and the rotating top wall portion 50 are relatively rotated around the axis L. As a result, the upper stopper portion 55 moves in an arc around the axis L relatively toward one side in the circumferential direction, and the lower stopper portion 45 moves in an arc around the axis L relatively toward the other side in the circumferential direction. Then, the lower stopper portion 45 and the upper stopper portion 55 are spaced apart from each other in the circumferential direction, the upper stopper portion 55 is detached from above the lower stopper portion 45, and the cap main body portion 4 and the rotating portion are formed by the lower stopper portion 45 and the upper stopper portion 55. The restriction | limiting of the relative rotational motion with 5 is cancelled | released.

  Further, as described above, when the cap main body portion 4 and the rotating portion 5 are relatively rotated, the fitting wall portion 42 and the inner wall portion 52 are relatively rotated around the axis L. As a result, the inner stopper portion 57 relatively moves in a circular arc toward one side in the circumferential direction, and gets over the convex portion 49 adjacent to the first outer stopper portion 48A. As a result, the inner stopper portion 57 is disengaged from the first outer stopper portion 48A, and the restriction on the relative rotational motion between the cap main body portion 4 and the rotating portion 5 by the first outer stopper portion 48A and the inner stopper portion 57 is released. Further, when the cap main body 4 and the rotating portion 5 are rotated relative to each other, the inner stopper portion 57 moves in an arc around the axis L in the arc movement range R toward the second outer stopper portion 48B. And this inner stopper part 57 gets over the convex part 49 which adjoins the 2nd outer stopper part 48B, and is fitted between this convex part 49 and the 2nd outer stopper part 48B, and is set in the 2nd outer stopper part 48B. Abutted and locked. Thereby, the relative rotational movement between the cap body 4 and the rotating part 5 is restricted, the cap body 4 and the rotating part 5 are held in a relatively rotated state, and the pressing part 43 is in a state where the spray head 22 is pushed down. Retained.

  Further, as described above, when the residual gas in the aerosol container 2 is being discharged, the cap main body 4 and the rotating portion 5 are rotated in the reverse direction (the direction opposite to the rotation for discharging the residual gas described above). When the cap main body 4 and the rotating portion 5 are returned to their original positions, the first engaging surface 11a is relatively raised along the second engaging surface 54a and is pressed by the engaging portion 54. The pressing of the portion 43 is released. As a result, the pressing portion 43 is pulled up by the elastic restoring force of the spring portion 44, the pressing portion 43 returns to its original position, the lower end of the pressing portion 43 is separated from the upper surface of the spray head 22, and the residual gas in the aerosol container 2 Is stopped.

  According to the above-mentioned aerosol container 1 with a cap, by adjusting the relative rotation angle of the rotating part 5 with respect to the cap main body part 4, it is possible to adjust the pressing amount of the pressing part 43, and at the time of discharging residual gas. The gas discharge amount can be adjusted.

  Further, when the residual gas in the aerosol container 2 is being discharged, the rotating part 5 and the cap main body part 4 are rotated in the opposite directions, and the relative position between the rotating part 5 and the cap main body part 4 is restored. Since the discharge of the residual gas in the aerosol container 2 is stopped by returning to, the discharge of the residual gas can be interrupted halfway.

  Further, when the engaging portion 54 presses the pressing portion 43, the pressing portion 43 is pushed down straight in the axial direction along the inner peripheral surface of the guide portion 53, so that the spray head 22 is surely pushed down by the pressing portion 43. be able to.

  Further, since the curved spring portion 44 is easily deformed in the axial direction and the pressing amount of the pressing portion 43 can be increased, the spray head 22 can be largely pressed down, and the residual gas in the aerosol container 2 can be reduced. It can be discharged efficiently.

  Further, before the rotating portion 5 and the cap main body portion 4 are relatively rotated around the axis L, one end portion 44 a of the spring portion 44 is connected to the cap main body portion 4 via the weakening portion 12, and the weakening portion 12. Since the axial deformation of the spring portion 44 is restricted by the above, it is possible to prevent the pressing portion 43 from inadvertently moving downward and pressing the spray head 22 to discharge the gas in the aerosol container 2. it can.

As mentioned above, although embodiment of the aerosol container with a cap concerning this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above-described embodiment, the lower stopper portion 45 protrudes from the upper surface of the cap ceiling wall portion 40, and the upper stopper portion 55 protrudes from the lower surface of the rotating ceiling wall portion 50. The lower stopper portion 45 and the upper stopper portion 55 can be omitted.
In the above-described embodiment, the outer stopper portion 48 and the convex portion 49 protrude from the inner peripheral surface of the fitting wall portion 42 of the cap ceiling wall portion 40 and are suspended from the lower surface of the rotating ceiling wall portion 50. The inner stopper portion 57 protrudes from the outer peripheral surface of the inner wall portion 52. However, in the present invention, the convex portion 49 can be omitted, and the outer stopper portion 48, the inner wall portion 52, and the inner stopper portion 57 can be omitted. Can be omitted.

  In the above-described embodiment, the cap body portion 4 is provided with the fitting wall portion 42 erected on the upper surface of the cap top wall portion 40. It can be omitted. For example, the rotation peripheral wall part 51 of the rotation part 5 may be configured to be attached to the cap peripheral wall part 41 so as to be rotatable around the axis L.

  In the above-described embodiment, the rotating part 5 is provided with the rotating peripheral wall part 51 suspended from the outer edge part of the rotating ceiling wall part 50. However, in the present invention, the rotating peripheral wall part 51 is omitted. Is also possible. For example, a configuration may be adopted in which a rotary top wall portion having a circular shape in plan view is fitted inside a fitting wall portion standing on the upper surface of the cap top wall portion 40 so as to be rotatable around the axis L.

  In the above-described embodiment, the pressing portion 43 includes the cylindrical portion 10 and the convex wall portion 11 erected on the upper end surface of the cylindrical portion 10, and the axis line is provided on the side surface of the convex wall portion 11. The first engagement surface 11a inclined with respect to L is formed, but in the present invention, the upper end surface of the cylindrical portion 10 may be an engagement surface inclined with respect to the axis L, or An engaging portion in which an engaging surface inclined with respect to the axis L is formed on the outer peripheral surface of the tubular portion 10 may be provided.

  In the above-described embodiment, the engaging portion 54 protrudes from the outer peripheral surface of the guide portion 53. However, in the present invention, the engaging portion 54 does not protrude from the outer peripheral surface of the guide portion 53. Also good. For example, the engaging portion 54 may be suspended from the lower surface of the rotating ceiling wall portion 50.

  Further, in the above-described embodiment, the cylindrical guide portion 53 is suspended from the lower surface of the rotating ceiling wall portion 50, and this guide portion 53 is inserted inside the cylindrical push-down portion 43. The guide part 53 described above may not be formed in a cylindrical shape, and a columnar guide part extending along the axis L may be provided. Further, in the present invention, the above-described guide portion 53 can be omitted, and the pressing portion 43 is not formed in a cylindrical shape, but is provided with a pressing portion having another shape such as a column shape, a plate shape, or a spherical shape. May be.

  In the above-described embodiment, the first engagement surface 11a on the cap body portion 4 side extends along the outer peripheral surface of the cylindrical pressing portion 43, and the second engagement surface 54a on the rotating portion 5 side is formed. It extends along the outer peripheral surface of the cylindrical guide tube portion 53, and these engagement surfaces 11a and 54a extend in a substantially spiral shape around the axis L. The engaging surface may be an inclined inclined inclined surface, and the engaging surface may not extend around the axis L. For example, the engagement surface may have a rectangular shape, a circular shape, an elliptical shape, or the like when viewed from above.

  In the above-described embodiment, the engaging surfaces 11a and 54a inclined with respect to the axis L are formed on the pressing portion 43 and the engaging portion 54, respectively, but the present invention is inclined with respect to the axis L. The engaging surface may be formed only on one of the pressing portion 43 and the engaging portion 54. For example, a convex wall portion that is rectangular in a side view is erected on the upper end surface of the cylindrical portion 10 of the pressing portion 43, and the upper corner portion of the convex wall portion is the second engagement surface of the engagement portion 54 on the rotating portion 5 side. The structure may be in sliding contact with 54a. Further, a rectangular engaging portion in a side view is projected on the outer peripheral surface of the guide tube portion 53, and a lower corner portion of the engaging portion is slidably contacted with the first engaging surface 11a on the cap body portion 4 side. It may be a configuration.

  In the above-described embodiment, the spring portion 44 extends along the outer edge of the opening 40a of the cap top wall portion 40 and the outer peripheral surface of the pressing portion 43 and is curved in a vertical plane of the axis L. Although it has an arc shape, in the present invention, the shape of the spring portion 44 can be appropriately changed. Specifically, it may be a spring portion that does not extend along the outer edge of the opening 40a of the cap top wall portion 40 or the outer peripheral surface of the pressing portion 43. For example, a spring portion having an S-shape in plan view is used. It is possible. Moreover, the spring part of the shape bent in the vertical surface of the axis line L may be sufficient. For example, it is possible to form a crank-shaped spring portion bent in a step shape in plan view or a spring-shaped spring portion in plan view. Furthermore, the present invention can be made into a spring portion other than a curved or bent shape in the vertical plane of the axis L, for example, a linear spring portion extending in the radial direction or the direction intersecting the radial direction. It is also possible to make it.

  Further, in the above-described embodiment, the gas vent groove 6 is formed in the fitting wall portion 42, and the residual gas injected into the cap main body portion 4 passes through the opening 40 a of the cap top wall portion 40 and rotates the rotating portion 5. The inside of the rotary part 5 passes through the gas vent groove 6 and is discharged to the outside of the aerosol container 1 with a cap. In the present invention, all or part of the residual gas is mounted on the cap peripheral wall part 41 and the mounting part. It may be discharged from the gap between the cup 25 and the outside of the capped aerosol container 1. In the present invention, a discharge port for discharging the residual gas injected into the cap main body 4 may be separately formed. For example, a through hole for venting may be formed in the cap peripheral wall portion 41. Here, a seal that closes the through hole may be pasted from the outer peripheral surface of the cap peripheral wall portion 41 to the outer peripheral surface of the rotating peripheral wall portion 51. Thereby, the relative rotation of the rotating part 5 and the cap main body part 4 can be prevented by the seal during normal use without degassing the residual gas. At this time, a seal having a short axial length can be used by forming a through hole for venting the upper portion of the cap peripheral wall portion 41.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

It is a longitudinal cross-sectional view of the aerosol container with a cap for demonstrating embodiment of this invention. It is a cross-sectional view between AA shown in FIG. It is a perspective view of the cap main-body part for describing embodiment of this invention. It is a perspective view of the rotation part for describing an embodiment of the invention. It is a perspective view of the rotation part for describing an embodiment of the invention. It is a cross-sectional view between BB shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Aerosol container with a cap 2 Aerosol container 3 Cap 4 Cap main-body part 5 Rotating part 11a First engagement surface (engagement surface)
12 weakening part 22 spraying head 40 cap top wall part 40a opening 41 cap peripheral wall part 43 pressing part 44 spring part 50 rotating top wall part 53 guide part 53
54 engaging portion 54a second engaging surface (engaging surface)
L axis (cap center axis)

Claims (4)

An aerosol container with a cap, comprising: an aerosol container including a stem erected in an upward biased state and a spray head attached to the stem; and a cap detachably attached to the aerosol container and covering the spray head. There,
The cap includes a cap main body that is detachably attached to the aerosol container, and a rotating portion that is rotatably mounted on the cap main body about a cap central axis.
The cap body portion is disposed above the spray head, and has a cap top wall portion having an opening formed in a central portion in plan view, and is suspended from the cap top wall portion and engaged with the aerosol container. A cap peripheral wall portion, a pressing portion disposed inside the opening in a plan view perpendicular to the cap central axis, and disposed above the spray head; the cap top wall portion and the pressing portion; An elastically deformable spring portion that connects
The rotating portion includes a rotating ceiling wall portion disposed above the cap ceiling wall portion, and an engaging portion disposed below the rotating ceiling wall portion and engaged with the pressing portion.
An aerosol container with a cap, wherein at least one of the pressing portion and the engaging portion is formed with an engaging surface that is slidably contacted with the other and inclined with respect to the cap central axis. . In the aerosol container with a cap according to claim 1,
The pressing portion has a cylindrical shape extending in the cap central axis direction,
An aerosol container with a cap, wherein the rotating part is provided with a guide part that is suspended from the lower surface of the rotating ceiling wall part in the cap central axis direction and is inserted inside the pressing part. . In the aerosol container with a cap according to claim 1 or 2,
The aerosol container with a cap, wherein the spring portion is bent or curved in a vertical plane of the cap central axis. In the aerosol container with a cap according to claim 3,
An aerosol container with a cap, wherein a connecting end portion connected to the pressing portion among the spring portions is connected to an outer edge of the opening via a weakened portion that is easily broken.

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