JP7307496B2 - 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, the contents of the container are ejected through the stem into the exterior space.

In order to eject the contents from such an ejection container, a content ejection unit having an operating portion for pushing down the stem is attached to the container body. As an example of the content ejection unit, a configuration has been proposed in which a user can operate an operation section while holding a handle to eject the content. As a result, the user can stably operate and easily aim at the injection target by operating the operating portion such as the lever or the trigger while gripping the handle.

As an example of a content injection unit provided with a handle, Patent Document 1 discloses that the stem can be attached to and detached from the body of a container body, and the user can grip the handle and lightly pull the trigger with a finger to operate the stem using the principle of leverage. is disclosed. Further, Patent Document 2 discloses a content injection unit in which the handle portion can be folded along the wall surface of the container body when not in use.

Japanese Utility Model Laid-Open No. 60-74756 Japanese Patent No. 3897589

The content injection unit of Patent Document 1 is configured to protrude greatly from the side surface of the container body. In addition, in the contents injection unit of Patent Document 2, even when the handle portion is folded when the container is not in use, it protrudes greatly from the side surface of the container body. Therefore, these content injection units take up space when the container is stored.

SUMMARY OF THE INVENTION An object of the present invention is to provide a content injection unit with a handle that is more compact than before.

In order to achieve the above object, the content injection unit of the present invention is a content injection unit that is attached to the stem of a valve provided on the top of a container and that injects the contents of the container. an injection operation part having a mouth, a stem insertion cylinder in which the tip of the stem is inserted into the lower end and guides the contents injected from the tip of the stem to the injection port, a state functioning as a cap part covering the injection port, and injection a cap that can be displaced to open the mouth and function as a handle.

ADVANTAGE OF THE INVENTION The present invention can provide a contents injection unit with a handle that is more compact than before.

FIG. 3(a) is a perspective view and FIG. 3(b) is a cross-sectional view showing a configuration example of a content injection container 20; (a) Perspective view and (b) side view showing a configuration example of the content injection unit 10. FIG. (a) Perspective view and (b) side view showing a configuration example of the content injection unit 10. FIG. (a) to (c) are perspective views showing respective parts of the content injection unit 10, and (d) a rear view of the cap base 40. FIG. (a) to (c) are sectional views showing operation examples of the content injection unit 10. FIG. FIG. 2 is a bottom view of the content injection unit 10 with the cap open.

A content injection unit according to an embodiment of the present invention will be described below.
First, with reference to FIGS. 1 to 4, main configuration examples of the content injection unit 10 will be described. FIG. 1 shows a configuration example of the content injection container 20 with the cap 50 closed. FIG. 2 shows a configuration example of the content injection unit 10 with the cap 50 slightly opened. FIG. 3 shows a configuration example of the content injection unit 10 with the cap 50 fully opened. FIG. 4 shows the injection operation part 30, the cap base part 40, and the cap 50 that constitute the content injection unit 10. As shown in FIG.

As shown in FIG. 1, the content injection unit 10 is attached to a stem 23 of a valve 22 provided on the top of a container body 21 that stores content. When the user operates the contents ejection unit 10 to press the stem 23, the contents of the container body 21 are ejected. In the following description, the vertical direction means that the side of the container body 21 to which the valve 22 is attached is the upper side, and the bottom part of the container body 21 is the lower side. The side that is hit is the front and the other side is the back.

The content injection unit 10 includes an injection operation part 30 having an injection port 35 and a stem insertion cylinder 31 into which the tip of the stem 23 is inserted into the lower end and guides the content injected from the tip of the stem 23 to the injection port 35. , and a cap 50 . The cap 50 can be displaced between a state of functioning as a cap portion covering the injection port 35 (FIG. 1) and a state of functioning as a handle portion with the injection port 35 opened (FIG. 3).

As described above, the content injection unit 10 of the present embodiment can be used as a handle portion with the cap portion opened. Therefore, although it is a content injection unit with a handle, it is compact when the handle portion is not used. be.

The content ejection unit 10 further includes a cap base 40 for detachably attaching to the valve 22 . The cap base 40 is provided with a rotation shaft 44 for the cap 50, and the cap 50 can be displaced between a state in which it functions as a cap portion and a state in which it functions as a handle portion by rotating around the rotation shaft 44. be.

As shown in FIGS. 1(b) and 4(c), the cap 50 covers the injection port 35 and has a substantially rectangular curved upper surface 50a and a pair of long sides 50a1 and 50a2 of the upper surface 50a and one short side. It is generally a housing having three sides 50b1, 50b2, 50b3 connected to side 50a3. Of the side surfaces 50b1 and 50b2 connected to the pair of long sides 50a1 and 50a2 of the cap 50, the ends of the short sides that are not provided with the side surfaces connected to the upper surface 50a are rotatably connected to the rotating shaft 44. . The cap 50 rotates around the rotating shaft 44 through the upper side of the contents injection unit 10 as indicated by an arrow A1 in FIG. so as to open relative to the cap base 40 .

As shown in FIGS. 3A and 3B, the cap 50 in the open state protrudes from the container body 21, so that the user can lift the container body 21 by grasping the cap 50 as a handle, or open the injection port. 35 can be easily aimed in the direction in which it should be injected.

The stem insertion tube 31 will be described with reference to FIG. 1(b). The stem insertion cylinder 31 of the injection operation unit 30 includes a first cylinder part 31b that guides the contents injected from the stem upward along the axis of the stem 23, and a first cylinder part 31b that guides the contents that have passed through the cylinder part 31b to the stem 23. and a second cylindrical portion 31c that guides in a direction (forward) substantially orthogonal to the axis of , and an injection port 35 is provided at the tip of the cylindrical portion 31c.

The injection operation unit 30 is further provided with a lever 32 extending from the stem insertion tube 31 in the direction opposite to the injection port 35 . The direction connecting the lever 32 and the injection port 35 coincides with the longitudinal direction of the cap 50 . As shown in FIGS. 2(a), 3(a), and 4(a), at the tip (rear end) of the lever 32, there is a finger hook that is bent in a direction (here, substantially horizontal) where the user can easily hook his or her finger. A portion 33 is provided.

Next, the cap base 40 will be described with reference to FIGS. 1(a), (b) and FIGS. 2(a), (b). The cap base portion 40 includes a cylindrical cover portion 41 and a housing portion 42 provided at the upper end of the cover portion 41 and having a shape for housing the injection operation portion 30 . The cover portion 41 can be attached to and detached from the container body 21 by engaging with the outer periphery of the mountain cup 22 b of the valve 22 . A stem through-hole 42 b slightly larger than the outer periphery of the stem 23 is provided in the center of the bottom surface of the housing portion 42 . The stem 23 penetrates through the stem through-hole 42 b and protrudes inside the cap base 40 .

As shown in FIGS. 2(b) and 3(b), the storage section 42 has a housing shape with a substantially rectangular upper surface, and includes a pair of side walls 42A parallel to the front-rear direction and a pair of side walls 42A perpendicular to the side walls 42A. It has a pair of wall surfaces 42B and 42C. A rotating shaft 44 with which the cap 50 is rotatably connected to the cap base 40 is provided in the vicinity of the rear ends of the pair of side walls 42A of the storage section 42 .

As shown in FIGS. 1(b) and 4(b), an opening 46 is provided in a wall surface 42B on the front side of the housing portion 42. The opening 46 accommodates the tubular portion 31c of the stem insertion tube 31. The tip is inserted from the inside of the cap base 40 . A lower portion of the outer periphery of the tip of the cylindrical portion 31c is in contact with a lower portion of the inner periphery of the opening portion 46 of the storage portion 42 at a contact point 46a. As a result, the stem insertion tube 31 is supported on the stem 23 by the lower end of the tube portion 31b into which the tip of the stem 23 is inserted. The stem 23 can be tilted by rotating with the contact point 46a of .

Further, as shown in FIGS. 1(b) and 4(d), a rectangular hole 45 is provided in a rear wall surface 42C of the storage section 42. As shown in FIG. Further, as shown in FIGS. 2B, 3B, and 4B, holes 43 are provided in the vicinity of the rear end portions of both side walls 42A of the storage portion 42, respectively.

As shown in FIGS. 1(b) and 4(c), a rear end portion 54 of the cap 50 is provided with notches 52 along a pair of long sides of the upper surface 50a. The width of the notch 52 is set slightly larger than the thickness T of the side wall 42A of the storage portion 42 shown in FIGS. 4(b) and 4(d). Moreover, as shown in FIG. 4(c), projections 53 are provided inside the pair of notches 52, respectively.

As shown in FIG. 5B, when the cap 50 is fully opened and functions as a handle portion, the end portion 54 on the rear side (rotation shaft 44 side) of the upper surface 50a of the cap 50 is inserted into the hole 45. be. As shown in FIG. 6, at this time, the notch 52 is engaged with the rear edge of the pair of side walls 42A of the cap base 40 (the edge of the hole 45).

When the cap 50 is rotated to function as a handle, the projection 53 engages the hole 43 in the side wall 42A with the notch 52 engaging the rim of the hole 45 to prevent the cap 50 from opening further. It functions as a stopper fixed to the At this time, the cap 50 is rotated by 180° or more with respect to the cap base 40 from the state where the injection port 35 is covered, and is in an open state.

(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 FIGS. 1, 5, 6, and the like.

As shown in FIGS. 1A and 5A, when the cap 50 of the content jetting unit 10 is closed and functions as a cap portion covering the upper surface of the cap base portion 40, the front end 50A of the cap 50 is , covers the injection port 35 . In addition, since the cap 50 also covers the lever 32 in this state, it also serves as an injection lock mechanism to prevent the lever 32 from being operated by the user.

Further, when functioning as a cap portion, the cap 50 has the same width and length as the cap base portion 40, does not protrude from the container body 21 to a large extent, and has a compact shape.

Also, in this state, there is a space 55 between the top of the stem insertion tube 31 in the cap base 40 and the bottom of the cap 50, so printed materials such as the instruction manual and specifications of the injection container 20 can be placed in this space 55. It can be folded and stored.

From the state in which the cap 50 is closed in this way, the user rotates the cap 50 upward with respect to the cap base 40 about the rotation shaft 44 as indicated by an arrow A1, thereby rotating the cap 50 with respect to the cap base 40. When opened, the lever 32 and the injection port 35 are exposed as shown in FIG.

When the user further rotates the cap 50 to the maximum rotation angle with respect to the cap base 40, as shown in FIGS. It is inserted into the hole 45 of the base 40 and fixed to the cap base 40 by the projection 53 so that it functions as a handle that can be grasped when the lever 32 is depressed by the user. Specifically, as shown in FIG. 6, the rearward end 54 of the cap 50 is inserted into the hole 45 and the pair of notches 52 of the cap 50 engage the edges of the hole 45 of the cap base 40 . Furthermore, the protrusion 53 of the notch 52 engages with the hole 43 and functions as a stopper. In this way, the cap 50 is fixed against the cap base 40 in the open state so as not to open any further.

In this state, as shown in FIG. 5(b), the cap 50 protrudes to the rear side of the rear end of the lever 32 and to the outside of the container body 21, and the longitudinal direction of the cap 50 when viewed from above. The direction matches the direction connecting the injection port 35 and the lever 32 . Also, the cap 50 is fixed in a state where it is opened by 180° or more from the state where the injection port 35 is covered. Accordingly, when the user grips the cap 50 as a handle, the user can easily grip the cap 50 as the handle in a wide space outside the container body 21 . Further, since the longitudinal direction of the cap 50 as the handle portion coincides with the direction connecting the injection port 35 and the lever 32 as described above, it is easy to set the injection direction to the target position. Furthermore, since the position of the thumb of the user's hand holding the cap 50 as a handle matches the position of the finger hook 33 , the user can easily press the lever 32 while holding the cap 50 .

In this state, when the user grips the cap 50 with the palm of his hand, for example, puts his thumb on the finger hook 33 and presses down the lever 32 in the direction of the arrow A2, as shown in FIG. The lever 32 rotates toward the stem 23 with the contact point 46a of the outer periphery of the tip provided with the port 35, which contacts the storage portion 42, as a fulcrum. Rotation of the lever 32 causes the lower end of the stem insertion tube 31 to tilt the stem 23 while pushing it down. By tilting the stem 23 , the content filled in the container body 21 is ejected from the ejection port 35 through the hole 23 b of the stem 23 and the inside of the stem insertion tube 31 . The contents are jetted as long as the user depresses the lever 32 . Further, the tip of the stem insertion tube 31 provided with the injection port 35 is supported by the contact 46a, and is not displaced downward even when the lever 32 is pushed down during injection. Therefore, it is possible to suppress the deviation of the injection direction due to the depression of the lever 32 .

After the required amount of the contents has been injected, the lever 32 rotates in the direction opposite to arrow A2 in FIG. The inclination of the lower end of the stem insertion tube 31, which had tilted the stem 23, returns, and the stem 23 returns. When the stem 23 returns, the ejection of the contents stops.

After spraying, when the user rotates the cap 50 in the direction of arrow A3 in FIG. exits the hole 45, the cap 50 is closed. As a result, the front wall of the cap 50 returns to the state where the injection port 35 is covered again.

As described above, in the contents jetting unit 10, the cap 50 functions as both the cap portion and the handle portion, and protrudes from the side surface of the container body 21 only when functioning as the handle portion. When it functions as a container body 21 , it is housed in the upper part of the container body 21 and does not protrude from the container body 21 . Therefore, it is a compact structure in spite of being a contents injection unit with a handle.

In addition, since the content injection unit 10 is configured such that the stem 23 is pushed down on the principle of leverage by the rotation of the lever 32, the user can perform the operation of injecting the content by applying a light force to the lever 32. ,user friendly. In addition, in the contents injection unit 10, the finger hook 33 of the lever 32, which serves as the force point of the lever, and the contact point 46a, which serves as the fulcrum, are positioned on the front side and the rear side with respect to the stem 23, which serves as the point of action. It is a compact content injection structure designed to maximize the fulcrum and power point without protruding greatly from the side surface of the body 21. - 特許庁

In addition, since the rotation shaft 44 is provided near the finger hook 33 and the cap 50 can be opened on the side protruding rearward from the finger hook 33, the user can hold the cap 50 with the palm of the hand while holding the cap 50 in the palm of the hand. The finger hook portion 33 can be pressed with the fingers of the hand holding the 50 . That is, in this content ejection unit 10, the user can operate the lever 32 with one hand to eject the content.

Furthermore, since the injection port 35 of the content injection unit 10 can be covered with the cap 50, dust does not adhere to the injection port 35 when the container is not in use, and handling is convenient. In addition, since the user cannot operate the lever 32 when the cap 50 is closed, the cap 50 also functions as an injection lock mechanism. Accordingly, the user can quickly put the content ejection container 20 into a ready-to-use state by simply opening the cap 50 without the trouble of unlocking.

In addition, the content injection unit 10 has a structure in which the lever 32 rotates around the contact point 46a under the injection port 35 as a fulcrum and the content is injected. don't move. Therefore, when the user aims at the target and ejects the contents, the operation is stable and the contents easily hit the aimed target.

[Details and Variations of Configuration of Content Injection Unit 10]
Hereinafter, the details of the configuration of the content injection unit 10 will be described mainly with reference to FIG. 1(b).

The stem insertion tube 31 of this example has a step 31a that engages with the upper end of the stem 23 at the lower end of the inner wall. The step 31a may be omitted if the stem insertion tube 31 attached to the upper end of the stem 23 cannot be removed without applying a certain amount of force.

The lever 32 is a plate portion that is inclined with respect to the axial direction of the stem 23 from the upper end of the cylindrical portion 31b so as to go upward toward the rear side. It is located near the rear edge of the inside. The finger hook 33 may be omitted, but is preferably arranged in a direction perpendicular to the rotation direction of the lever 32 so that the user can easily press the lever 32 .

A reinforcing plate 34 is provided on the lower surface of the lever 32 to reinforce the lever 32 by connecting the lower surface of the lever 32 and the outer peripheral surface of the cylindrical portion 31b. Although the reinforcing plate 34 may be omitted, by arranging the lower end of the reinforcing plate 34 near the lower end of the cylindrical portion 31b, the user's force pushing down the lever 32 can be efficiently transmitted to the force tilting the stem 23. can be done.

As shown in FIG. 2, the user may operate the lever 32 with the cap 50 partially opened. In addition, the user can operate the lever 32 without gripping the cap 50 with the palm. For example, the user may press the lever 32 while gripping the container body 21 . Further, the user places the bottom surface of the content jetting container 20 and the front end 50A of the cap 50 on a flat surface such as a desk while the cap 50 is opened and fixed with respect to the cap base 40, and presses the lever 32. You may

The injection operation unit 30 may adopt an operation method other than the lever 32, such as allowing the contents to be injected by pressing a push button or by pulling a trigger. . In the content jetting unit 10 configured to jet the content when the user pushes down the lever 32 with a finger such as a thumb as in this example, the user can quickly operate the lever continuously while gripping the handle. It's also hard to get tired. Therefore, the content ejection unit 10 is easier for the user to operate while gripping the handle portion than content ejection units employing other operation methods.

As described above, the cap 50 of this example has a substantially housing shape, so that it fits in the palm of the user's hand and is easy to grip, but the shape of the cap is not limited to this. The shape of the cap when viewed from above may be a shape other than a rectangle such as a circle or a polygon, or may have a shape having only a front surface and an upper surface as long as it can function as a cap portion and a handle portion. .

The front wall of the cap base 40 of this example is slightly lower than the rear wall. Further, the hole portion 43 of the cap base portion 40 is provided at a position sandwiched between the stem through hole 42b and the rotating shaft 44, and is inclined with respect to the axial direction of the stem 23 so as to go upward toward the rear side. is opened. However, the shape of the cap base 40 is not limited to this. For example, the angle at which the cap 50 can rotate with respect to the cap base 40 may be changed by changing the length of the notch 52 and the position at which the projection 53 enters the hole 43 .

Since the content injection unit 10 is composed of three members, the injection operation portion 30, the cap base portion 40, and the cap 50, the number of parts is small and the manufacturing is easy. These members used in the content injection unit 10 described above may be configured integrally, for example, by connecting the injection operation portion 30 and the contact point 46a of the cap base portion 40 with a hinge. In this case, the content ejection unit 10 can be made from one member.

Resins such as polypropylene and high-density polyethylene can be used as materials for the injection operation unit 30, the cap base 40, and the cap 50. FIG.

Since the content injection unit 10 has a detachable structure on the valve, it can be easily attached to and detached from a conventional container body, and the content injection container 20 having the effects as described above can be provided. can be done.

Here, the overall configuration of the fixed quantity injection container 20 provided with the content injection unit 10 will be supplemented.

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).

Unless otherwise specified, each part constituting the metered injection container 20 can be made of materials such as plastics, rubbers, metals, and ceramics used for general containers, as long as they are not affected by the contents. Materials can be selected and used.

DESCRIPTION OF SYMBOLS 10... Content injection unit, 20... Injection container, 21... Container body, 22... Valve, 23... Stem, 30... Injection operation part, 31... Stem insertion tube, 32... Lever, 35... Injection port, 40... Cap base , 44... rotating shaft, 46a... opening, 50... cap

Claims (6)

A contents injection unit mounted on the stem of a valve provided on the upper part of a container for injecting the contents of the container,
an injection operation unit comprising an injection port, and a stem insertion cylinder into which the tip of the stem is inserted into the lower end and guides the content injected from the tip of the stem to the injection port;
a cap that can be displaced between a state of functioning as a cap portion covering the injection port and a state of functioning as a handle portion by opening the injection port;
a cap base detachably attached to the valve,
The cap rotates around a rotation shaft provided in the cap base, thereby displacing from a state of functioning as a cap portion to a state of functioning as a handle portion,
The cap is a substantially housing having a substantially rectangular top surface and three side surfaces connected to a pair of long sides and one short side of the top surface, and the side surfaces connected to the pair of long sides. , the end of the short side not provided with the side surface is rotatably connected to the rotating shaft,
The stem insertion tube has a first tube portion that guides the content ejected from the stem upward along the axis of the stem, and a first tube portion that guides the content that has passed through the first tube portion to the axis of the stem. and a second cylindrical portion that guides in a direction substantially perpendicular to the second cylindrical portion, the injection port is provided at the tip of the second cylindrical portion,
The injection operation unit further includes a lever extending from the stem insertion cylinder in a direction opposite to the injection port,
The cap base has a shape that accommodates the injection operation part, and has an opening into which the tip of the second cylindrical part is inserted,
A hole is provided in the surface of the cap base facing the opening, and the edge of the upper surface of the cap on the rotating shaft side is inserted into the hole when the cap functions as a handle. ,
A stopper is provided on the upper surface of the cap on the rotating shaft side to fix the cap to the cap base while the cap is inserted into the hole when the cap functions as a handle,
Notches are provided along the pair of long sides in the edge of the top surface of the cap on the side of the rotation shaft, and the edge of the top surface of the cap on the side of the rotation shaft is inserted into the hole. A content jetting unit, sometimes characterized in that said notch engages an edge of said hole in said cap base. A protrusion is provided inside the notch of the upper surface,
the cap base has a pair of side walls, the side walls being provided with holes that engage with the projections of the cutouts;
2. The contents jetting unit according to claim 1 , wherein the projection functions as the stopper by engaging with the hole as the cap rotates. 2. The content injection unit according to claim 1 , wherein the longitudinal direction of the cap coincides with the direction connecting the injection port and the lever. In a state where the cap functions as a handle,
2. The contents jetting unit according to claim 1 , wherein the longitudinal direction of the cap is aligned with the direction connecting the jetting port and the lever when viewed from above. The second cylindrical portion is inserted into the opening and is in contact with the opening, and when the lever is pushed down, the stem insertion tube moves the contact point between the opening and the second cylindrical portion. 2. The contents jetting unit according to claim 1 , wherein the stem is tilted by rotating with a fulcrum. 2. The contents jet according to claim 1 , wherein the state in which the cap is fixed to the cap base by the stopper is a state rotated by 180° or more from the state in which the jet port is covered. unit.

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