JP6401031B2 - Aerosol container press head - Google Patents

Description

  The present invention relates to an aerosol container pressing head for facilitating pressing of a hollow stem when a hollow stem of an aerosol container is pressed to inject the contents filled in the container.

  An aerosol container used as a container for a hairdressing agent, a fragrance, an insecticide, or the like is provided with a hollow stem supported by an elastic member such as a spring and having an internal passage as an injection path for contents. Is pressed and the valve assembled at the lower end thereof is opened to allow the contents to be injected.

  In order to make the hollow stem easy to press, a pressing head equipped with a nozzle connected to an injection path is usually attached. However, many of the pressing heads are small in size, and the pressing force (operating force) applied by the finger and the urging force of the elastic member supporting the hollow stem exist on the same straight line, and thus the pressing is applied. When the resistance is relatively large and the nozzle head must be pressed for a long time depending on the type of contents and the purpose of use, the operation is not easy.

  In order to eliminate the conventional problems as described above, for example, in Patent Document 1, a trigger is suspended via a support plate at the lower front end of an injection cylinder for injecting contents, and the trigger is pulled backward. An aerosol nebulizer has been proposed in which a hollow stem is pushed down to inject contents.

JP 2001-158484 A

  By the way, in this kind of pressing head, when trying to save parts and simplify the structure in conjunction with the improvement of operability, an unreasonable force that pushes it into the hollow stem acts. In some cases, the contents may be ejected in an unstable state, or the contents may not be ejected properly (the ejection state of the contents becomes unstable).

  An object of the present invention is to propose a pressing head for an aerosol container that can easily push the hollow stem and can stably inject the contents without causing the hollow stem to move excessively. is there.

The present invention has a nozzle head that is fitted and held in a hollow stem of an aerosol container and has an ejection path that leads to an internal passage of the hollow stem, and a through-opening that exposes the nozzle head to an upper portion. A press-fitting head for an aerosol container, wherein the contents in the aerosol container are ejected through a nozzle outlet of the nozzle head by pressing the nozzle head together with a hollow stem. In the through-opening, the base and the nozzle head are connected to each other, and a connecting piece that is elastically deformable along with the movement of the nozzle head is provided , and the base is fitted and held on the base, and the nozzle head In the inner space, and the cover is a window opened to face the nozzle head outlet. And the body of the cover is swingably supported, and the nozzle head is pressed together with the hollow stem by pressing down with the supporting portion as a fulcrum, so that the contents in the aerosol container are directed from the window hole to the outside. The nozzle head has protrusions on both side walls of the cylindrical body constituting the nozzle head, and the operation piece has a pair of clamping pieces that link the downward recesses to the protrusions. This is a pressing head for an aerosol container.

In addition, the present invention includes a nozzle head that is fitted and held in a hollow stem of an aerosol container and has an ejection path that leads to an internal passage of the hollow stem, and a through-opening that exposes the nozzle head to an upper portion. A press head for an aerosol container comprising: a base fixed to and held by a mountain cup of the container; and pressing the nozzle head together with a hollow stem to cause the contents in the aerosol container to be ejected through a nozzle outlet of the nozzle head, In the through opening of the base, the base and the nozzle head are connected to each other, and a connecting piece that is elastically deformable in accordance with the movement of the nozzle head is provided, and the base is fitted and held on the base, A cover for accommodating the nozzle head in an inner space thereof, the nozzle head being a cylindrical body constituting the nozzle head; The cover has projections on both side walls, and the cover is supported on the back of the main body portion of the cover so as to be openable and closable via a hinge, and the nozzle head is pressed together with the hollow stem by pressing down with the hinge as a fulcrum. An operation piece for injecting the contents in the container toward the outside; a window hole for exposing the nozzle port of the nozzle head; and a distal end portion of the operation piece. An aerosol container pressing head comprising: a lever that pushes down the operation piece by leaking; and a pair of clamping pieces that link the downward recess to the projection.

  In addition, the cover can be rotated around the base, and the operation piece can be provided with a holding piece for rotating the nozzle head in synchronization with the rotation of the cover.

  Further, it is desirable that the base has a stopper that is positioned at a rear end portion of the operation piece and restricts the operation piece from being pushed down by the rotation of the cover.

  It is desirable that the base is provided with a blocking plate that is located at the rear end of the operation piece and at the same time in front of the nozzle head outlet and closes the outlet.

  Furthermore, the base can be provided with a stopper that is positioned at at least one position on the lower surface of the nozzle and restricts the operation piece from being pushed down by the rotation of the cover.

  In the aerosol container pressing head according to the present invention, the nozzle head fitted and held in the hollow stem is connected to the base through a connecting piece that elastically deforms along with the movement of the nozzle head. Since the pressure does not reach the base, an unreasonable force is not applied to the hollow stem, and the hollow stem can be pushed almost along the axis, and the contents can be injected in a stable state.

  In addition, the base, the nozzle head, and the connecting piece connecting them can be formed of a single member, and the number of parts can be reduced (reduced parts and simplified structure). Note that one or more connecting pieces can be provided according to the size of the pressing head, and the number of connecting pieces is not particularly limited.

  Further, since the hollow stem is pushed in by the operation piece provided on the cover, the contents can be jetted without requiring a particularly large pressing force, and the jetting operation is easy. In particular, in the case where a lever is provided at the tip of the operation piece, it is possible to inject the contents only by checking the lever, and the injection operation becomes even easier and easier to use.

  Further, the cover is configured to be rotatable along the periphery of the base, and the operation piece is configured to include a clamping piece that rotates the nozzle head in synchronization with the rotation of the cover. Since the stopper is provided at the rear end of the operation piece to prevent the operation piece from being pushed down by the rotation of the operation piece, it is possible to restrict the injection of the contents with a simple operation by simply rotating the cover. it can.

  Further, according to the pressing head of the present invention, since the stopper is located at the rear end portion of the operation piece at the same time as the stopper is located at the front surface of the nozzle head and closes the nozzle, the container is provided with the container. It is possible to prevent dust and the like from adhering to the jet outlet during storage.

  Furthermore, according to the pressing head of the present invention, the base is provided with a stopper that is positioned at least at one position on the lower surface of the nozzle head by the rotation of the cover, and thus restricts the pressing of the operation piece. It becomes possible to regulate the injection of the contents with a simple operation by simply rotating the.

It is the figure which showed typically the press head according to this invention with the aerosol container mounted | worn, (a) is a top view, (b) is a side view (sectional display). It is the figure which showed the plane of the state which removed the cover about the press head shown in FIG. It is the figure which showed the state which hold | maintained the operation piece in the locked state, (a) is a top view, (b) is a side view. It is the figure which showed the other example of the press head according to this invention, (a) is a top view, (b) is a side view. FIG. 5 is a plan view of the pressing head shown in FIG. 4 with a cover removed. FIG. 5 is a view showing a state in which the operation piece is held in a locked state in the pressing head shown in FIG. 4, (a) is a plan view, and (b) is a side view.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
1A and 1B are diagrams schematically showing an embodiment of a pressing head according to the present invention attached to an aerosol container, where FIG. 1A is a plan view and FIG. 1B is a side view thereof. FIG. Further, FIG. 2 is a view showing a plane in a state where the cover is removed in the places shown in FIGS. In addition, although all the structural members of the press head according to the present invention are formed of synthetic resin, the material is not particularly limited.

  1 and 2, reference numeral 1 denotes an aerosol container filled with the contents, and 2 denotes a hollow stem provided at the top of the aerosol container 1. The contents filled in the aerosol container 1 are injected through its internal passage by pressing the hollow stem 2.

  Reference numeral 3 denotes a nozzle head that is fitted and held in the hollow stem 2 and has an ejection path that leads to the internal passage of the hollow stem 2. This nozzle head 3 is integrally connected at right angles to a head main body 3b having a jet port 3a oriented in the horizontal direction and a lower portion of the rear end portion of the head main body 3b, and the head main body 3b is fitted to the hollow stem 2. It is comprised from the cylinder 3c. Projections 3d are provided on both side walls of the head body 3b.

  Reference numeral 4 denotes a base. The base 4 surrounds a mountain cup (clamping annular body) 1a of the aerosol container 1 and is between an inner cylinder 4a fitted to the mountain cup 1a by means such as undercut, and an outer peripheral wall of the inner cylinder 4a. An outer cylinder 4b which forms a step portion d (which forms an installation seat portion of a cover to be described later) and is integrally connected, and whose lower end is brought into contact with the shoulder portion of the aerosol container 1 in a flush state, and the inner cylinder 4a The top plate 4c is integrally connected to the upper end of the tube and cooperates with the inner cylinder 4a on the lower side to form a storage space for the hollow stem 2. A through-opening 4d that exposes the nozzle head 3 to the upper portion is formed at the center of the top plate 4c. The outer cylinder 4b is shown as an example in which the step portion d is formed by connecting to the substantially central portion of the outer peripheral wall of the inner cylinder 4a via an annular horizontal plate provided on the upper surface thereof. It can be arbitrarily changed and is not limited to the illustrated one.

  Reference numeral 5 denotes a connecting piece provided in the through-opening 4d and connecting the nozzle head 3 and the base 4 to each other as shown in the three examples. The connecting piece 5 is composed of an elongated belt-like member, and can be elastically deformed in accordance with the movement (up and down movement) of the nozzle head 3 (the nozzle head 3 is moved downward together with the hollow stem 2). When the nozzle head 3 returns to its original position, it is restored to its initial shape. For example, it moves like a leg of a three-point valve. And can expand and contract along the periphery of the hollow stem 2.

  The connection piece 5 should just be provided at least 1 and is not limited to the thing of illustration. The connecting piece 5 is integrally connected at its end to the cylindrical body 3c of the nozzle head 3 and the inner end of the through opening 4d of the base 4, and the nozzle head 3, the base 4 and the connecting piece 5 are united. It has the advantage that the number of parts can be reduced.

  Reference numeral 6 denotes a dome-shaped cover that houses the nozzle head 3 in the inner space M thereof. The cover 6 is a step portion d of the base 4 whose inner peripheral wall is an outer peripheral wall of the inner cylinder 4a and is rotatably fitted by means such as undercut, and the front wall surface of the main body portion 6a. Is provided with a window hole 6b that opens to face the nozzle 3a of the nozzle head 3.

Reference numeral 7 denotes a curved plate-like operation piece provided so as to form the top surface portion of the cover 6 at a position above the nozzle head 3. The operating piece 7, the front side of the body portion 6a of the cover 6, i.e., is swingably supported by the body portion 6a immediately above the tip portion of the head body 3b of the nozzle head 3 (cantilevered by integrally coupling), A main body 7a that directly applies a pressing force, and a pair of holding pieces that are held down on the lower surface of the main body 7a and sandwich the nozzle head 3 by associating a downward recess with protrusions 3d provided on both side walls of the nozzle head 3. 7b and a rib 7c integrally provided over the entire length in the width direction central portion of the lower surface of the main body 7a.

  The rib 7c is provided to reinforce the main body 7a, and the main body 7a can be thinned by providing the rib 7c. The amount of resin used can be reduced by reducing the thickness of the main body 7a.

  The rear end portion of the main body 7a is curved or bent downward (except for the rib 7c) (see the enlarged view of FIG. 1B), and this rear end portion comes into contact with a stopper described later. ing. The rear end portion of the main body 7a of the operation piece 7 may be thick, and the thick portion can be brought into contact with the stopper to restrict the pushing of the operation piece 7.

  When a pressing force is applied to the upper surface of the main body 7a of the operation piece 7 and the operation piece 7 is pushed down with the support portion (connecting portion) 7d as a fulcrum, the nozzle head 3 is pressed together with the hollow stem 2, and the aerosol container 1 The contents are ejected from the window hole 6b toward the outside.

  Reference numeral 8 denotes a stopper provided on the top plate 4 c of the base 4. The stopper 8 is configured by, for example, a rod-shaped member having an H-shaped cross section that is integrally connected to the top plate 4c in a standing posture (the upper end corresponds to the main body 7a of the operation piece 7 and the inner surface shape of the cover 6). When the aerosol container 1 is in a state where the contents can be injected, that is, when it is in a state as shown in FIGS. 1A and 1B, the stopper 8 is Although the operation piece 7 is located away from the main body 7a, the cover 6 is rotated around the base 4 together with the nozzle head 3, and the stopper 8 is moved to the operation piece 7 as shown in FIGS. The operation piece 7 is restricted from being pushed down by being positioned at the lower end of the rear end of the main body 7a. The nozzle head 3 is rotated through a pair of sandwiching pieces 7b suspended from the lower surface of the main body 7a of the operation piece 7.

  The connecting piece 5 that connects the nozzle head 3 and the base 4 not only can accompany the up-and-down movement of the nozzle head 3 due to its elastic deformation, but also can extend and contract around the hollow stem 2. Even if the nozzle head 3 is rotated, the movement can be easily followed.

  Reference numeral 9 denotes a closing plate provided on the top plate 4c of the base 4 (see FIGS. 1A and 2). The closing plate 9 is provided at a position opposed to the stopper 8 so as to sandwich the hollow stem 2, and when it is in a state in which the contents can be ejected, a position away from the ejection port 3 a of the nozzle head 3. However, as shown in FIGS. 3A and 3B, the stopper 8 is positioned at the rear end of the main body 7a of the operation piece 7 and at the same time as the nozzle 3 at the front surface of the nozzle 3a. 3a is blocked, thereby preventing intrusion of dust or the like into the ejection port 3a.

  In the pressing head having the above-described configuration, the nozzle head 3 and the base 4 are merely connected via the connecting piece 5 that is elastically deformed in response to the movement of the nozzle head 3. When the nozzle head 3 is pressed, the movement of the nozzle head 3 is not restricted by the base 4. In other words, the hollow stem 2 is not pushed in with an excessive force applied to the hollow stem 2 (it is possible to push the hollow stem 2 substantially along its axis), so that the contents are stable. It can be made to inject in the state.

  Further, such a pressure head can be made injectable or non-injectable (locked) state by a simple operation by simply rotating the cover 6 clockwise or counterclockwise. Thus, it is possible to prevent the operation piece 7 from being accidentally pushed in and the contents are inadvertently ejected.

  4 (a) and 4 (b) are diagrams showing another example of the pressing head according to the present invention, and FIG. 5 shows the pressing head shown in FIGS. 4 (a) and 4 (b) with the cover 6 removed. It is the figure which showed the plane of the state.

  In this example, an extension portion extending rearward is formed at the rear end portion of the head main body 3 b of the nozzle head 3, and the operation piece 7 is opened and closed via a hinge 10 on the back surface of the main body portion 6 a of the cover 6. An oval window hole 11 is provided on the wall surface on the front surface side of the operation piece 7 so as to expose the ejection port 3 a of the nozzle head 3.

  A lever 12 is integrally formed at the distal end of the main body 7a of the operation piece 7 so as to extend obliquely outward in the radial direction below the nozzle 3a of the nozzle head 3. The operation piece 7 can be pushed down by leaking the lever 12.

  The press head having this structure can inject the contents with a simple operation by simply leaking the lever 12, the injection operation is further facilitated, and it is easy to use. Since the nozzle head 3 and the base 4 are connected via an elastically deformable connecting piece 5 like the pressing head shown in FIG. 1 above, the hollow stem 2 is not forced to move. The content injection is stable.

  4 (a), 4 (b) and FIG. 5, reference numeral 13 denotes a stopper configured by a convex portion or a vertical rib that restricts the movement of the operation piece 7, and 14 reinforces the operation piece 7 and the lever 12. It is a rib to do. The ribs 14 are continuously provided at both ends of the operation piece 7 and the lever 12 in the width direction. Further, 15 is provided at a width end portion on the rear end side (the side close to the hinge 10) of the operation piece 7, and a pair of projections for detachably locking the operation piece 7 to the main body portion 6 a of the cover 6. Part. In the usage state of the pressing head, the operation piece 7 is locked to the main body portion 6a of the cover 6 by the convex portion 15, but the operation piece 7 is caused to act as a fulcrum to be locked by the convex portion 15. It is possible to cancel the operation, and the operation piece 7 can be brought into a state as shown in the phantom line in the drawing.

  Two stoppers 13 can be formed on the top plate 4 c of the base 4 so as to sandwich the hollow stem 2. The stopper 13 is positioned away from the nozzle head 3 as shown in FIGS. 4A and 5 when the contents can be ejected. On the other hand, the cover 6 is rotated around the base 4 together with the nozzle head 3, and as shown in FIGS. 6A and 6B, the stoppers 13 are positioned at the front lower portion and the rear lower portion of the nozzle head 3, respectively. The pressing of the operation piece 7 is restricted.

  In particular, the stopper 13 can shorten the protruding length as compared with the stopper 8 shown in FIGS. 1A and 1B, so that not only the shape of the member can be simplified but also the amount of resin used can be reduced. There is an advantage that can be reduced. In addition, although the stopper 13 was shown as an example that is located at two positions of the head body 3b of the nozzle head 3, the number of the stoppers 13 can be arbitrarily changed.

  In order to switch the pressing head to a jettable state or a non-sprayable state (locked state), for example, a groove portion is provided on the outer peripheral wall of the inner cylinder 4a of the base 4 and the groove portion is formed on the inner peripheral wall of the cover 6. 4 is provided, and the cover 6 is rotated to bring the convex portion into contact with one end of the groove portion, so that the state shown in FIGS. The state shown in FIGS. 3 and 6 may be obtained by rotating in the direction and bringing the protrusion into contact with the other end of the groove.

When performing the switching as described above, a member having a groove or a protrusion is formed with a pair of protrusions having a small protrusion margin and a gap therebetween, and the other member. Furthermore, it is preferable to form a single protrusion that can be positioned between the pair of protrusions by overcoming one of the pair of protrusions. By forming such protrusions, there is an advantage that inadvertent rotation of the cover 6 can be suppressed when a single protrusion is positioned between the pair of protrusions by the rotation of the cover 6. Further, such protrusions, when the single projection rides over one of the pair of protrusions, since the Ru give click feeling, or the press head is ready for injection-friendly, whether the state of the injection not It is possible to grasp clearly.

  In the embodiment of the present invention, an example in which one pressing head is attached to one aerosol container 1 is shown as an example. For example, the contents are simultaneously ejected from a plurality of aerosol containers such as a hair dye. It is effective as a pressing head to be mounted on a container that is used by mixing it or an aerosol container provided with a plurality of hollow stems.

  This is because it is difficult to press the hollow stem at the same time with equal force when injecting the contents from a plurality of aerosol containers or injecting the contents from a plurality of hollow stems. Since the nozzle head 3 is connected to the base 4 via the elastically deformable connecting piece 5, the hollow head is pressed with an almost equal force without applying excessive force to the hollow stem. Because you can. Also in this case, the contents are ejected in a stable state.

  Although the present invention has been described with respect to the aerosol container 1 provided with the hollow stem 2 that injects the contents upward, the hollow stem 2 is limited to those that inject the contents upward. There is nothing. In addition, the valve assembled at the lower end of the hollow stem 2 may be of any kind, and this point is not limited.

  ADVANTAGE OF THE INVENTION According to this invention, the injection operation can be performed easily, and the press head for aerosol containers which can inject the contents in the stable state can be provided, aiming at saving parts and simplifying a structure.

DESCRIPTION OF SYMBOLS 1 Aerosol container 1a Mountain cup 2 Hollow stem 3 Nozzle head 3a Spout 4 Base 4a Inner cylinder 4b Outer cylinder 4c Top plate 4d Through-opening 5 Connection piece 6 Cover 6a Main body part 6b Window hole 7 Operation piece 7a Main body 7b Holding piece 7c Rib 7d Support portion 8 Stopper 9 Closure plate 10 Hinge 11 Window hole 12 Lever 13 Stopper 14 Rib 15 Protruding portion d Step portion M Inner space

Claims (6)

A nozzle head that is fitted and held in the hollow stem of the aerosol container and has a jet passage leading to the internal passage of the hollow stem, and a through-opening that exposes the nozzle head to the upper portion, and is fixed to the mountain cup of the aerosol container An aerosol container pressing head for spraying the contents in an aerosol container through the nozzle head outlet by pressing the nozzle head together with a hollow stem;
In the through opening of the base, the base and the nozzle head are connected to each other, and a connecting piece that is elastically deformable along with the movement of the nozzle head is provided,
The base includes a cover that is fitted and held in the base, and stores the nozzle head in an inner space thereof.
The cover is supported by a main body portion of the cover so as to be swingable, and a window hole that opens to face the nozzle head outlet, and the nozzle head is held together with the hollow stem by being pushed down with the support portion as a fulcrum. An operation piece for pressing and injecting the contents in the aerosol container toward the outside from the window hole;
The nozzle head has protrusions on both side walls of a cylindrical body constituting the nozzle head,
The operation piece may have a pair of clamping pieces to coordinate a downward recess in the protrusion,
A pressing head for an aerosol container , wherein a rib that is integrally connected to the entire length of the main body is provided at the center in the width direction of the lower surface of the main body of the operation piece . A nozzle head that is fitted and held in the hollow stem of the aerosol container and has a jet passage leading to the internal passage of the hollow stem, and a through-opening that exposes the nozzle head to the upper portion, and is fixed to the mountain cup of the aerosol container An aerosol container pressing head for spraying the contents in an aerosol container through the nozzle head outlet by pressing the nozzle head together with a hollow stem;
In the through opening of the base, the base and the nozzle head are connected to each other, and a connecting piece that is elastically deformable along with the movement of the nozzle head is provided,
The base includes a cover that is fitted and held in the base, and stores the nozzle head in an inner space thereof.
The nozzle head has protrusions on both side walls of a cylindrical body constituting the nozzle head,
The cover is supported by a back surface of the main body portion of the cover so as to be openable and closable via a hinge, and the nozzle head is pressed together with the hollow stem by being pushed down with the hinge as a fulcrum to bring the contents in the aerosol container to the outside. Having an operation piece to be sprayed
A window hole that exposes the nozzle head outlet, a lever that is integrally connected to the distal end of the operation piece, and depresses the operation piece by leaking it; a pair of clamping pieces to coordinate the provided,
The operation piece is locked to the width end portion on the rear end side, and the operation piece is locked to the main body portion of the cover when the pressing head is in use, but the operation piece is raised by using the hinge as a fulcrum. An aerosol container pressing head comprising a pair of convex portions to be released .   The cover is rotatable along the periphery of the base, and the operation piece has a holding piece that rotates the nozzle head in synchronization with the rotation of the cover. Or the press head for aerosol containers described in 2.   4. The base according to claim 1, wherein the base includes a stopper that is positioned at a rear end portion of the operation piece and restricts the operation piece from being pushed down by the rotation of the cover. The described pressure head for an aerosol container.   5. The base according to claim 4, wherein the base has a closing plate that is positioned at a front surface of the nozzle head outlet at the same time as the stopper is positioned at a rear end portion of the operation piece and blocks the nozzle outlet. Aerosol container press head.   The said base has a stopper which is located in at least one place of the lower surface of the said nozzle head, and suppresses pushing down of the said operation piece by rotation of the said cover. The pressure head for an aerosol container described in 1.

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