JP7126254B2 - Content injection unit - Google Patents

Description

TECHNICAL FIELD The present invention relates to a content jetting unit that jets content contained in a container.

A conventional aerosol spray container comprises a container body for containing contents and a valve at the top of the container body. At the center of the valve, a stem is arranged which is movable downward and communicates the space inside the container body with the outside space. The valve is configured such that when the stem is depressed or tilted, the contents of the container are ejected through the stem into the exterior space.

In order to inject the contents of the injection container through such a valve, the valve is fitted with a content injection unit having an injection operating portion for pushing down the stem and a spout.

When the injection container is put in a bag, etc., the contents may be erroneously injected due to unintentional operation of the injection operation unit. In order to prevent this, a content injection unit has been proposed that has a structure that restricts the operation of the injection operation part. For example, in Patent Document 1, a vertically movable cylindrical body covering the upper part of the container body is provided, and when the user lowers the cylindrical body with respect to the container body, the ejection port and the injection operation part (trigger) are moved to the container body. When the user raises the cylinder relative to the container body, the nozzle and the injection operation part (trigger) are housed in the cylinder, and the user can operate the injection. Disabled content injection units are disclosed.

In addition, Patent Document 2 discloses a content injection unit having a structure in which, when a user rotates an outer body attached to the top of a valve, the user can switch between a state in which the user can operate the injection and a state in which the injection operation cannot be performed. ing. In this content injection unit, when the injection operation is possible, the injection operation part (actuator button) protrudes from the upper part of the outer body, and the injection channel assembly having the injection port is attached to the stem of the valve. On the other hand, in the non-injectable state, the injection operator (actuator button) is housed in the upper portion of the outer body and the injection channel assembly is separated from the stem of the valve.

Japanese Patent Publication No. 2009-502678 Japanese Patent No. 6254946

Conventional trigger-type injection operation units often have a structure that protrudes radially outward from the side of the container body, but the content injection unit saves the space required when displaying or storing the injection container. In order to reduce the size, it is preferable to have a structure that does not protrude radially outward from the side surface of the container body as much as possible. Moreover, in order to suppress the manufacturing cost, it is preferable that the content injection unit can be attached to a general container body (aerosol can).

The contents injection unit of Patent Document 1 can have a structure in which the cylindrical body does not protrude outward from the side surface of the container body by making the outer diameter of the cylindrical body substantially the same as the outer diameter of the lower part of the container body. , the diameter of the upper part of the container must be smaller than the diameter of the lower part of the container by the thickness of the cylindrical body. Therefore, in order to attach the contents injection unit of Patent Document 1, it is necessary to manufacture a dedicated container body.

The content injection unit of Patent Document 2 has a structure in which the injection channel assembly, which has been separated from the stem, is attached to the stem when the injection operation is displaced from the state in which the injection operation is impossible to the state in which the injection operation is possible. There is a possibility that the injection channel assembly may not be properly attached to the stem if, for example, the meshing of the interior parts is dislocated due to the misalignment. If the injection operation part is operated while the injection channel assembly is not properly attached to the stem, there is a possibility that the contents will be erroneously injected into the outer body from the tip of the stem.

SUMMARY OF THE INVENTION An object of the present invention is to provide a content injection unit that can prevent erroneous injection of content, can be attached to a general container body, and can be stored compactly.

In order to achieve the above object, the contents injection unit of the present invention is a contents injection unit that is attached to a valve provided on the upper part of a container that stores contents, and that injects the contents of the container. a shaft-shaped member having a lower end attached to the stem so that the axial direction coincides with the central axis of the stem provided at the center of the valve; an operating lever that tilts to lower and/or tilt the stem to eject the contents; and a cap. The cap includes an opening provided on a side surface and a mechanism for displacing the operating lever in the radial direction of the cap as the cap rotates. When the cap is rotated in a predetermined direction, the cap mechanism can be operated by moving the operating lever radially outward of the cap so that the end of the operating lever protrudes from the side opening of the cap. It is a structure that makes it a good state.

INDUSTRIAL APPLICABILITY The present invention can prevent erroneous injection of contents, and can provide a contents injection unit that can be attached to a general container body and that can be stored compactly.

(a) to (b) perspective views showing an operation example of the content injection unit 10 of the embodiment, (c) AA sectional view of FIG. 1(a), (d) BB of FIG. 1(b) (e) a DD cross-sectional view of FIG. 1(c); (f) a EE cross-sectional view of FIG. 1(d). (a) Perspective view showing a configuration example of the content injection container 20, (b) AA sectional view of the content injection unit 10, (c) DD sectional view of the content injection container 20. FIG. (a) a perspective view of the cap 40, (b) a perspective view of the operating lever 30, (c) a perspective view of the shaft-like member 50, and (d) a perspective view of the base 40A. (a) A perspective view of the content injection unit with the cap 40 removed, (b) A perspective view showing the positional relationship among the operating lever 30, the shaft-like member 50, and the pedestal 40A. (a) Perspective view, (b) BB cross-sectional view, and (c) EE cross-sectional view showing an operation example of the content injection unit 10. FIG. (a) Perspective view, (b) CC cross-sectional view, and (c) FF cross-sectional view showing an operation example of the content injection unit 10. FIG.

A content injection unit according to an embodiment of the present invention will be described below.
First, with reference to FIGS. 1(a) to 1(f), a main configuration example of the content injection unit 10 will be described.

The contents injection unit 10 is attached to a valve 22 provided on the top of a container body (aerosol can) 21 that houses contents. By operating the content injection unit 10, the user pushes down or tilts the stem 23 at the center of the valve 22 via the content injection unit 10, and causes the content of the container body 21 to be injected from the content injection unit 10 to the outside. be able to. In the following description, regarding the vertical direction, the side of the container body 21 to which the valve 22 is attached is called the upper side, and the bottom side of the container body 21 is called the lower side.

The content injection unit 10 includes a shaft-like member 50 having a lower end attached to the stem 23 so that the axial direction coincides with the central axis of the stem 23, and the shaft-like member 50 is attached to the shaft-like member 50 so that the shaft-like member 50 is lowered and A control lever 30 that lowers and/or tilts the stem 23 by tilting and ejects the contents, and is rotatably mounted on the valve 22 so that the central axis coincides with the central axis of the stem 23. , and a cap 40 having a cylindrical side surface. The side surface of the cap 40 is provided with an opening 45 through which the operation lever 30 appears and an ejection port 44 through which the content is ejected.

The cap 40 has a mechanism (displacement mechanism) that displaces the operating lever 30 in the radial direction of the cap 40 as the cap 40 rotates. Thereby, the operating lever 30 can appear and disappear from the opening 45 of the cap 40 . In this displacement mechanism, when the user rotates the cap 40 in a predetermined direction (arrow Y1 in FIGS. 1(a) and 1(c)), the guide surface 4A moves the operating lever 30 radially outward of the cap 40. 1(d) and 1(f), the lever portion 30A at the end portion of the operating lever 30 is protruded from the opening 45 to the outside of the cap 40 so as to be operable. Further, in this displacement mechanism, when the user rotates the cap 40 in a direction opposite to the predetermined direction (the direction of the arrow Y2 in FIGS. 1(b) and 1(d)), the guide surface 4A moves the operating lever 30 from the cap 40. It is configured such that the lever portion 30A is moved radially inward and accommodated inside the cap 40 through the opening 45 as shown in FIGS.

Specifically, as shown in FIGS. 1( c ) and 1 ( d ), the cap 40 displacement mechanism includes a guide surface 4</b>A provided on the inner wall of the cap 40 . The guide surface 4A comes into contact with a portion (projections 31, 32) of the operating lever 30, pushes a portion (projections 31, 32) of the operating lever 30 as the cap 40 rotates, and pushes the operating lever 30 toward the cap 40. It is a shape that moves in the radial direction of

As described above, the contents jetting unit 10 has a structure in which the operation lever 30 can be retracted from the cap 40, so that the operation lever 30 can move toward the cap as shown in FIGS. In the state housed in 40, the user cannot operate the operation lever 30, and erroneous ejection of the contents is prevented. On the other hand, as shown in FIGS. 1B, 1D, and 1F, when the operating lever 30 protrudes from the opening 45 of the cap 40, the user presses down the operating lever 30 to eject the contents from the ejection port 44. You can shoot things. Since the shaft-shaped member 50 is always attached to the stem 23 , the content is not erroneously ejected from the tip of the stem 23 into the content ejection unit 10 when the operation lever 30 is depressed. In addition, the contents injection unit 10 can compactly store the operation lever 30 in the cap 40 when not in use. Furthermore, the contents injection unit 10 can be attached to a general valve 22 and container body 21, and the manufacturing cost of the aerosol injection container can be suppressed.

[Detailed Configuration Example of Content Injection Unit 10]
A detailed configuration of the content injection unit 10 will be described below with reference to FIGS. 2 to 5. FIG.

In addition to the above-described shaft-like member 50, operating lever 30, and cap 40, the content injection unit 10 further includes a base 40A mounted on the mountain cup 22b of the valve 22, as shown in FIGS. I have. The cap 40 is rotatably attached to the base 40A.

As shown in FIGS. 2(a) to (c) and FIG. 3(a), the cap 40 is composed of a disk 46 covering the top of the container body 21 and a cylinder 47 fixed around the disk 46. , and the operating lever 30 and the shaft member 50 are accommodated therein.

The disc 46 of the cap 40 has a predetermined thickness, and in this example, the inner wall (lower surface) 46b of the disc 46 is provided with the guide surface 4A. The guide surface 4A is a curved surface (solid line in FIG. 2(b)) curved in a shape that connects a plurality of circular arcs with different curvatures when viewed from a cross section perpendicular to the axial direction of the stem 23. The surface 4</b>A has different distances between portions (curved surfaces 41 , 42 ) that come into contact with portions of the operating lever 30 (projections 31 , 32 ) and the center axis of the stem 23 depending on the rotation angle of the cap 40 . The lower surface of the disk 46 other than the guide surface 4A is notched so as to be higher than the lower surface on which the guide surface 4A is provided.

The guide surface 4A will be further explained. The guide surface 4A includes at least a first curved surface 41 and a second curved surface 42 having a curvature larger than that of the outer periphery of the cap 40 and having different curvatures. The curved surface 41 comes into contact with the protrusion 31 of the operating lever 30 when the cap 40 rotates in a predetermined direction (arrow Y1 in FIGS. 2(a) and 2(b)), and moves the operating lever 30 along the diameter of the cap 40. It is a shape that pushes outward in the direction. The curved surface 42 comes into contact with the projection 32 of the operating lever 30 when the cap 40 rotates in a direction opposite to the predetermined direction (arrow Y2 in FIGS. 6A and 6B), and the operating lever 30 is held by the cap. 40 is pushed back inward in the radial direction. It is preferable that portions of the guide surface 4A other than the curved surfaces 41 and 42 have approximately the same curvature as that of the outer peripheral surface of the cap 40 .

The ejection port 44 of the present embodiment is provided on the side surface of the disk 46 of the cap 40 and above the position where the lever portion 30A protrudes from the opening 45 of the cap 40 (near the end 45b of the opening 45). ing. That is, the ejection port 44 is positioned above the lever portion 30A protruding from the opening 45 . Therefore, when the lever portion 30A is operated, the contents are ejected from the upper portion of the lever portion 30A in the same direction as the direction in which the lever portion 30A protrudes.

Further, as shown in FIG. 5(c), a recess 46c having a size that matches the outer diameter of the shaft-like member 50 is provided in the center of the lower surface 46b of the disk 46. top is inserted. Furthermore, the disk 46 is provided with a hole 44b that serves as a flow path for guiding the contents from the recess 46c to the ejection port 44 along the radial direction.

As shown in FIGS. 2A to 2C and 3B, the operating lever 30 includes a lever portion 30A and a support portion 30B connected to the upper end of the lever portion 30A and supporting the lever portion 30A. have. The lever portion 30A has an outer peripheral surface formed by extending the side surface of the cap 40. As shown in FIG. As shown in FIG. 2(a), when the lever portion 30A cannot be operated, the side surface of the cap 40 is extended within the opening 45. As shown in FIG.

As shown in FIGS. 2A and 3B, the outer peripheral surface of the lever portion 30A has a vertically elongated rectangular shape, and the length of the outer peripheral surface of the lever portion 30A in the vertical direction is It matches the vertical width of the opening 45 of the cap 40 . Since the outer peripheral surface of the lever portion 30A serves as an operation surface, it is preferable that a rib or the like is provided so that the user can easily put his/her finger thereon.

The width of the opening 45 of the cap 40 in the circumferential direction is such that when the lever portion 30A is positioned at one end of the opening 45 in the circumferential direction as shown in FIG. The lever portion 30A is set to protrude from the opening 45 when the lever portion 30A is positioned at the other end as shown in 1(d). Therefore, the shape of the guide surface 4A of the cap 40 and the opening 45 are in correspondence. For example, the opening 45 is provided in the range of 0° to 90° on the outer circumference of the cap 40 .

Specifically, as shown in FIG. 2A, when the operating lever 30 is housed in the opening 45 and cannot be operated, the lever portion 30A is in contact with one edge portion 45a of the opening 45 in the circumferential direction. . On the other hand, as shown in FIG. 5( a ), the operating lever 30 is in contact with the other edge 45 b of the opening 45 when the operating lever 30 protrudes from the opening 45 and can be operated.

As shown in FIG. 2B, the support portion 30B of the operating lever 30 has its longitudinal direction aligned with the radial direction of the cap 40, and the length of the support portion 30B is equal to the inner diameter of the cap 40. is set to As a result, the operating lever 30 can be stored in the cap 40 as shown in FIG. 2(c).

As shown in FIGS. 2(b) and 3(b), the support portion 30B has a first protrusion 31 provided on the upper surface near the end opposite to the lever portion 30A, and the first protrusion 31 and a second projection 32 provided on the upper surface of the lever portion 30A side. The first and second protrusions 31 and 32 are for pushing the guide surface 4A of the cap 40 to retract the lever portion 30A as described above. It protrudes to a position higher than the lower end of the surface 4A. As the cap 40 rotates, the first curved surface 41 of the guide surface 4A pushes the first projection 31, causing the lever portion 30A to protrude with respect to the cap 40, and the second curved surface 42 of the guide surface 4A to move toward the second projection. By pressing the protrusion 32, the lever portion 30A is housed in the cap 40. - 特許庁

The support portion 30</b>B is provided with a through hole 34 penetrating vertically, and a shaft-like member 50 passes through the through hole 34 . As shown in FIG. 2B, the size of the through-hole 34 in the radial direction of the cap 40, that is, the width d1 from the end on the lever portion 30A side to the end on the first projection 31 side is the same as that of the operation lever. It is designed to be larger than the amount of radial movement of 30.

As shown in FIGS. 2(c) and 3(c), the shaft-like member 50 extends along the axial direction through a through hole 50b that guides the contents ejected from the hole 23b of the stem 23 to the concave portion 46c of the disc 46. are prepared. The stem 23 is inserted into the shaft-like member 50 as described above. The shaft-like member 50 has a step 50c that engages with the upper end of the stem 23 at the lower end of the through hole 50b. Due to this step 50c, the shaft-like member 50 is in close contact with the stem 23, and cannot be removed from the stem 23 unless a certain amount of force is applied.

An O-ring 53 is fitted on the outer circumference of the upper end of the shaft-like member 50 . The shaft-like member 50 is inserted into the recess 46c of the cap 40 as described above. The O-ring 53 is sandwiched between the outer circumference of the shaft-like member 50 and the inner circumference of the recess 46c (FIG. 5(c)). As a result, the contents guided to the through hole 50b flow into the recess 46c without leaking, are guided to the hole 44b, and are ejected from the ejection port 44. As shown in FIG.

A pair of protrusions 52 are provided on the outer peripheral surface of the shaft-like member 50 at a position (on the stem side) lower than the through hole 34 of the support portion 30B.

The projection 52 protrudes from the outer peripheral surface of the shaft-like member 50 in a direction perpendicular to the direction connecting the lever portion 30A and the end surface 30b of the operating lever 30, and supports the support portion 30B of the operating lever 30 from below. (Fig. 4(b)). As shown in FIG. 2(c), the upper end of the first projection 31 of the operating lever 30 is in contact with the lower surface 46b of the disk 46 of the cap 40, and when the lever portion 30A is moved by the rotation of the cap 40, It moves while maintaining contact with the lower surface 46b. As a result, when the lever portion 30A of the operating lever 30 is not operated, the support portion 30B of the operating lever 30 is kept horizontal. On the other hand, as shown in FIG. 5(c), when the lever portion 30A of the operating lever 30 protrudes from the cap 40 and is pushed in the radial direction by the user (arrow Y3), the supporting portion 30B of the operating lever 30 is moved to the second position. It rotates downward around the point of contact 43 between the upper end of the projection 31 and the disc 46 as a fulcrum, and pushes down the projection 52 of the shaft-like member 50 .

On the other hand, as shown in FIGS. 2(c), 3(d), 4(a), and 4(b), a base 40A on which the cap 40 is mounted is provided in the center and below the shaft-like member 50. and wall surfaces 48A and 48B erected so as to cover the area of the opening 45 other than the area where the lever portion 30A is located, inside the side surface of the cap 40. As shown in FIG.

The inner diameter of the guide tube 49 is set slightly larger than the outer diameter of the shaft-like member 50, and the guide tube 49 guides the axial descent of the shaft-like member 50. As shown in FIG.

Further, the guide cylinder 49 is provided with a notch 49A penetrating vertically through the guide cylinder 49 and the base 40A. On the other hand, a projection 54 that engages with the notch 49A protrudes radially from the shaft-like member 50 (FIG. 3(c)). Thereby, when the user rotates the cap 40, the shaft-like member 50 does not rotate with respect to the pedestal 40A.

As shown in FIGS. 2(a), 4(a), and 5(a), the wall surfaces 48A and 48B are erected so as to sandwich both side surfaces of the operating lever 30. As shown in FIGS. As a result, the operating lever 30 does not rotate with respect to the pedestal 40A when the cap 40 rotates to appear and disappear with respect to the cap 40 . Further, when the operating lever 30 is operated, the operating lever 30 descends while being sandwiched between the wall surfaces 48A and 48B, so that the operating lever 30 can descend stably.

Specifically, as shown in FIGS. 3(d), 4(a), and 4(b), the wall surface 48A includes an arcuate side wall 8a having an outer diameter slightly smaller than the inner peripheral surface of the cap 40, and a side wall 8a. The side wall 8c is connected to the side wall 8a and is in contact with the side surface of the operating lever 30, and is erected up to the same height position as the lever portion 30A. On the other hand, the wall surface 48B has the same shape as the wall surface 8a and stands up to the same height position as the lever portion 30A. Left and right edge portions of the side wall 8c and the wall surface 48B support the support portion 30B so as to sandwich the support portion 30B from the side surface.

As shown in FIGS. 2(a) and 3(d), when the operation lever 30 is accommodated in the opening 45 and cannot be operated, the wall surface 48A covers the opening 45 from the inside. On the other hand, as shown in FIG. 5A, when the operation lever 30 projects from the opening 45 and is operable, the wall surface 48B covers the opening 45 from the inside.

By covering the opening 45 with the wall surfaces 48A and 48B and the lever portion 30A in this way, the inside of the cap 40 can be made invisible through the opening 45 as much as possible, so that dust and the like can be prevented from entering the cap 40. can. In addition, since which of the wall surfaces 48A and 48B covers the opening 45 from the inside differs depending on the appearance state of the lever portion 30A, if the wall surfaces 48A and 48B are colored in different colors, the user can easily see the wall surface 48A exposed from the opening 45. , 48B, it can be determined whether the lever portion 30A is in a depressible state.

Resins such as polypropylene, high-density polyethylene, polyacetal, and polybutylene terephthalate can be used as materials for the operation lever 30, the cap 40, and the shaft-shaped member 50. FIG.

[Example of operation of content injection unit 10]
Next, an operation example of the content injection unit 10 of this embodiment will be described with reference to each drawing. Note that FIG. 2 shows a state in which the operating lever 30 cannot be operated, as in FIGS. 1(a), (c), and (e). FIG. 5 shows a state in which the control lever 30 can be operated, which is the same as in FIGS. 1(b), (d), and (f). FIG. 6 shows a state in which the lever portion 30A is pressed.

As shown in FIGS. 1(a), (c), (e) and FIGS. 2(a) to (c), when the operating lever 30 is stored in the cap 40, the lever portion 30A is positioned inside the opening 45. Since the end surface 30b of the support portion 30B contacts the inner peripheral surface of the cap 40 and prevents the operation lever 30 from descending, the user cannot press the lever portion 30A. In this state, the lever portion 30A is in contact with one edge portion 45a of the opening 45. As shown in FIG. A wall surface 48A is exposed from the opening 45. As shown in FIG. The projection 31 is positioned near between the curved surface 41 and the curved surface 42 of the guide surface 4A.

From this state, when the user rotates the cap 40 in the direction of the arrow Y1 with respect to the base 40A and the container body 21, the position of the guide surface 4A with respect to the protrusions 31 changes as the cap 40 rotates, and the curved surface 41 comes into contact with the protrusions 31. become. Further, when the user rotates the cap 40, the curved surface 41 moves while changing the contact position with respect to the projection 31, and pushes one corner of the projection 31 on the wall surface 48B side toward the lever portion 30A (opening 45 side). As a result, as shown in FIGS. 1(b), (d), (f) and FIGS. 5(a) to (c), the lever portion 30A is radially pushed out from the opening 45 of the cap 40 and is operable. state.

Note that when the cap 40 rotates halfway and the lever portion 30A protrudes halfway from the cap 40, that is, when the support portion 30B is not yet in contact with the edge portion 45b of the opening 45, the curved surface 41 does not touch the support portion 30B. , and prevents the operation lever 30 from descending. Further, when the user presses down the lever portion 30A in this state, the tip of the lever portion 30A bends and enters the opening 45, and cannot be pressed any further.

When the lever portion 30A protrudes most from the opening 45, the support portion 30B is in contact with the other edge portion 45b, and the wall surface 48B is exposed from the opening 45. As shown in FIG. Furthermore, in this state, the positions of the lever portion 30A and the ejection port 44 are aligned with respect to the rotation direction of the cap 40. As shown in FIG. That is, the ejection port 44 is positioned above the lever portion 30A.

In this state, when the user grips the cap 40 and the container body 21 with the palm and presses the lever portion 30A with, for example, the forefinger (arrow Y3), the lever portion 30A moves the projection 31 and the disk 46 together. The contact point 43 is used as a fulcrum to rotate downward, and the projection 52 is pushed down by the edge of the lower end of the through hole 34 . At this time, since the curved surface 41 is separated from the end surface 30b and is in contact with one corner of the projection 31 on the side of the wall surface 48B, the user can press the lever portion 30A. When the projection 52 is pushed down, the shaft-shaped member 50 moves while being in contact with the inner peripheral surface of the guide tube 49 of the base 40A, so that it is pushed down along the axial direction of the stem 23 . As a result, the downward rotation of the lever portion 30A is converted into the downward movement of the shaft-like member 50, and the shaft-like member 50 lowers and/or tilts the stem 23 along the axial direction of the stem 23. can.

As the stem 23 descends, the content filled in the container body 21 is ejected from the ejection port 44 positioned directly above the lever portion 30A, as shown in FIGS. 6(a) to 6(c). Specifically, the content passes through the hole 23b of the stem 23, the through hole 50b of the shaft-like member 50, and is ejected from the ejection port 44 via the recess 46c and the hole 44b.

When the required amount of the contents has been injected, the lever 30A rotates about the contact point 43 in the direction opposite to the arrow Y3 in FIG. The shaft-like member 50 pressing down the stem 23 rises, and the stem 23 rises and returns. When the stem 23 returns, the ejection of the contents stops.

From the state in which the lever portion 30A protrudes from the cap 40, the user rotates the cap 40 with respect to the pedestal 40A and the container body 21 in the opposite direction of the arrow Y1 (direction of the arrow Y2 in FIGS. 6A and 6B). Then, as the cap 40 rotates, the position of the guide surface 4A with respect to the projection 32 changes, and the curved surface 42 comes into contact with the projection 32. As shown in FIG. When the user further rotates the cap 40, the curved surface 42 moves while changing the contact position with respect to the protrusion 32, pushing the protrusion 32 back toward the protrusion 31 (opposite side of the opening 45). As a result, as shown in FIGS. 2(a) to 2(c), the lever portion 30A returns to the inoperable state.

As described above, in the content injection unit 10, the lever portion 30A can be retracted in the radial direction of the cap 40 by rotating the cap 40. Therefore, when the injection container 20 is not in use, the user can move the operation lever 30 to the cap 40. It can be stored in a compact state stored inside. In addition, since the user cannot depress the lever portion 30A when the operating lever 30 is housed in the cap 40, erroneous injection of the contents during storage of the injection container 20 is prevented.

In addition, since the cap 40 of the content injection unit 10 has a substantially cylindrical shape along the outer circumference of the container body 21, the user can easily hold it in the palm of the hand. Furthermore, since the lever portion 30A is configured to protrude from the side surface of the cap 40, the direction of the finger when the user pulls the lever portion 30A matches the direction of the finger arranged when the cap 40 is gripped. Therefore, by gripping the cap 40, the user can naturally place his fingers on the lever portion 30A and easily operate the lever portion 30A.

Furthermore, since the contents injection unit 10 is configured such that the stem 23 is pushed down on the principle of leverage by the rotation of the lever part 30A, the user can perform an operation to inject the contents by applying a light force to the lever part 30A. Easy to use. In addition, in the content injection unit 10, the lever portion 30A serving as a force point of leverage and the contact 43 serving as a fulcrum sandwich the contact point between the edge of the through hole 34 of the shaft-like member 50 and the projection 52 serving as a point of action. Since it is arranged at the position, it does not protrude greatly from the side surface of the container body 21, and is designed so that the fulcrum and the point of force are maximized.

In addition, the lever portion 30A and the wall surface 48A are exposed from the opening 45 when the lever portion 30A cannot be operated, and form a surface continuous with the side surface of the cap 40 within the opening 45. can be said to be a cap mechanism with excellent design.

In the present embodiment, the lever portion 30A projects from the cap 40 and the positions of the lever portion 30A and the spout 44 are aligned with each other in the rotational direction of the cap 40, but this structure is optional. For example, the spout 44 may be arranged not only on the side surface of the cap 40 but also on the top surface. In this example, with the arrangement of the ejection port 44 as described above, the content is ejected from the same direction as the lever portion 30A on which the user puts his or her finger. There is no need to search for the , and the content can be jetted to a desired position by directing the lever portion 30A to the jetting target.

In this embodiment, the path of the contents from the stem 23 to the injection port 44 is arranged so that the positional relationship does not change even if the cap 40 rotates. Even if the stem 23 is pushed in this state, the content is prevented from being erroneously injected into the cap 40 .

In addition, an operation method other than the lever portion 30A may be adopted for the operation lever 30, such as allowing the content to be ejected by pressing a push button or allowing the content to be ejected by pulling a trigger. . In the content ejection unit 10 configured to eject the content when the user depresses the lever portion 30A with a finger such as a thumb or index finger as in this example, the content ejection unit 10 employs other operation methods. Even if the user operates the lever portion 30A continuously and quickly, the user does not get tired and the operation is easy.

In addition, the combination of each member used for the content injection unit 10 is not restricted to the example mentioned above. For example, the operation lever 30 and the shaft-shaped member 50 may be integrated, in which case the number of members that constitute the content injection unit 10 can be reduced.

[Overall Configuration of Ejection Container 20]
The contents injection unit 10 can be attached to various valves regardless of size or type. Here, the overall configuration of the injection container (aerosol container) 20 provided with the contents injection unit 10 will be supplemented with reference to FIGS. 2(a) and 2(c).

The container body 21 is a body of rotation about a central axis. The contents housed in the container body 21 include a liquid agent in which drug components, solvents, and other additives according to the application are appropriately mixed as necessary. In addition to the liquid agent, the contents include a liquefied gas or a compressed gas soluble in the liquid agent as a propellant for injecting the liquid agent.

The valve 22 has a mountain cup 22b that covers the upper opening of the container body 21, and a stem 23 is provided in the center of the mountain cup 22b (on the central axis of the container body 21). A portion of the upper portion of the stem 23 is located outside the valve 22 and the remaining portion is located within the container body 21, and is biased upward by a spring (not shown). The valve 22 may be a valve that injects a fixed amount of content, or a valve that injects the content while the stem 23 is lowered or tilted.

Each part constituting the injection container 20 can be made of any material suitable for the application, from materials such as plastics, rubbers, metals, and ceramics used in general containers, as long as they are not affected by the contents, unless otherwise specified. can be selected and used.

DESCRIPTION OF SYMBOLS 10... Content injection unit 20... Injection container 21... Container body 22... Valve 23... Stem 30... Operation lever 31, 32... Projection part 4A, 41, 42... Curved surface 40... Cap, 40A... Pedestal, 44... Jet port, 50... Shaft-like member

Claims (12)

A contents injection unit attached to a valve provided on the upper part of a container housing contents to inject the contents of the container,
a shaft-shaped member having a lower end attached to the stem so that the axial direction coincides with the central axis of the stem provided at the center of the valve;
an operation lever mounted on the shaft-like member for lowering and/or tilting the shaft-like member to lower and/or tilt the stem to eject the contents;
a cylindrical-sided cap rotatably mounted on the valve such that its central axis coincides with the central axis of the stem;
The cap includes an opening provided on a side surface, and a mechanism for displacing the operating lever in a radial direction of the cap as the cap rotates,
When the cap is rotated in a predetermined direction, the mechanism of the cap moves the operating lever radially outwardly of the cap so that the end of the operating lever moves toward the opening in the side surface of the cap. A contents injection unit characterized in that it has a structure in which it is protruded outside from and is in an operable state. 2. The content injection unit according to claim 1, wherein the mechanism of the cap moves the operating lever radially inward of the cap when the cap rotates in a direction opposite to the predetermined direction. The content injection unit is configured to be in an inoperable state by moving the end portion of the operating lever inside the cap through the opening on the side surface of the cap. 3. The content ejection unit according to claim 2, wherein the mechanism of the cap includes a guide surface provided on the inner wall of the cap,
The guide surface is shaped so as to come into contact with a portion of the operating lever, push the portion of the operating lever as the cap rotates, and move the operating lever in the radial direction. Content injection unit. 2. The content jetting unit according to claim 1, wherein the operating lever has a lever portion that is the end portion and a support portion that supports the lever portion,
A content injection unit, wherein a through-hole is provided in the support portion, and the shaft-like member is arranged so as to pass through the through-hole. 4. The contents jetting unit according to claim 3, wherein the distance between the part of the guide surface that contacts the part of the operating lever and the center axis of the stem varies according to the rotation angle of the cap. A content injection unit characterized by having a curved surface. 6. The content ejection unit according to claim 5, wherein the curved surface includes a first curved surface and a second curved surface, and the first curved surface is configured such that the cap extends in the predetermined direction. It is shaped such that when it rotates, it comes into contact with a first projection of the operating lever and pushes the operating lever outward in the radial direction, and the second curved surface is formed so that the cap moves in a direction opposite to the predetermined direction. The contents jetting unit is shaped such that when it rotates, it comes into contact with the second projection of the operating lever to push back the operating lever inward in the radial direction. 2. The content injection unit of claim 1, wherein the cap has a disk mounted on top of the cylindrical side surface,
A recess into which the upper end of the shaft-shaped member is inserted is provided at the center of the lower surface of the disc,
the shaft-shaped member has a through-hole along the axial direction for guiding the contents ejected from the stem to the recess of the disc;
A content ejecting unit, wherein the disk includes a jet port for ejecting the content on a side surface thereof, and a channel for guiding the content from the recess to the jet port. 8. The content ejection unit according to claim 7, wherein the ejection port is provided above a position where the end of the operating lever protrudes from the opening of the cap. unit. 3. The content injection unit according to claim 2, wherein the end portion of the operating lever has an outer peripheral surface formed by extending the side surface of the cap, and the outer peripheral surface is in the operable state. A contents ejecting unit that protrudes from an opening to the outside, and is arranged in a position extending the side surface of the cap within the opening in the inoperable state. 2. The content injection unit according to claim 1, further comprising a seat attached to the valve, wherein the cap is rotatably attached to the seat,
The contents ejecting unit, wherein the pedestal is provided with a wall surface that covers a region of the opening other than the region where the end of the operating lever is located, inside the side surface of the cap. 5. The contents jetting unit according to claim 4, wherein the shaft-shaped member has a projection closer to the stem than the through hole of the support portion, and the support portion is supported by the projection,
A content injection unit, wherein when the lever portion is operated, the support portion tilts about a portion supported by the projection as a fulcrum to push down the shaft-like member. 12. The content injection unit according to claim 11, wherein the size of the through hole of the support portion in the radial direction of the cap is larger than the amount of movement of the control lever in the radial direction. substance injection unit.

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