JP6341412B2 - Discharge head - Google Patents

Description

  The present invention relates to a discharge head that is mounted on a head of an aerosol container or the like and discharges a liquid content in the container.

  Conventionally, for example, a type of hair dye, which is a type in which two types of chemical liquids are discharged together at the time of use, the chemical liquids are individually stored in an aerosol-type container body, and the contents from the pair of container bodies For example, there is a technique disclosed in Patent Document 1 below, which simultaneously discharges the chemical solution and discharges the discharged chemical solution from one place.

  This prior art includes two container bodies provided with stems, a cover cylinder that is detachably attached to both container bodies, and a pressing head member and a pressing plate having nozzles that are housed in the cover cylinders. The pressing head member engages with the stem of the container body and is housed in the cover cylinder so as to be movable up and down together with the stem.

  The contents may be accidentally discharged due to a malfunction such as when the push lever is accidentally pushed down when carrying, transporting or storing such an aerosol-type container body, thus preventing such erroneous discharge. There was a need. For this reason, aerosol type containers have been widely sold with an overcap for preventing malfunction. However, in order to further reduce the cost of the product, it has been required to prevent erroneous ejection in a so-called overcapless manner in which an overcap is not used.

JP 2002-037366 A

  An object of the present invention is to provide a discharge head that can be easily switched so as to reliably perform discharge while preventing an erroneous operation or inadvertently pushing down a lever and erroneous discharge without overcap. To do.

As means for solving the above problems, the invention according to the present invention is
A cylindrical cover that is detachably attached to the neck of the container body;
A nozzle cylinder fitted to the stem of the container body and a nozzle head which has a nozzle communicating with the fitting cylinder and is movable up and down;
A lever body having a pressing plate that pushes the nozzle head downward, and a discharge head comprising:
A recess formed in the cylindrical cover, capable of varying cylindrical cover integrated stopper unlocked state to allow depressed downward locked and the pressing plate for restricting the depression of the lower pressing plate hinges Connected together,
On the lower surface of the pressing plate, a lower surface groove that can lock the tip of the cylindrical cover integrated stopper is formed,
The tip of the cylindrical cover integrated stopper that is changed to the vertical posture is set in a locked state by engaging the lower surface groove, and the tip of the cylindrical cover integrated stopper that is changed from the vertical posture is detached from the lower surface groove. Thus, the unlocked state is set.

  With this configuration, even if there is no overcap, it is possible to prevent malfunction or accidental ejection due to the lever being pushed down carelessly. It is also possible to easily switch from the locked state to the unlocked state and vice versa.

In addition, the cylindrical cover integrated stopper can be more reliably locked by the lower surface groove.

  In another discharge head according to the present invention, a stopper locking member for locking the cylindrical cover integrated stopper is formed on the upper surface of the recess.

  In the above-described structure, when the stopper in the unlocked state is not used, the cylindrical cover integrated stopper can be folded to the closed state, so that discharge can be reliably performed without hindering the downward pressing of the pressing plate.

  In another discharge head according to the present invention, the container body is an aerosol container.

  With the above-described structure, it is possible to prevent malfunction of the ejection head used for the aerosol container or accidental ejection due to the lever being pushed down carelessly.

In the main constituent of the present invention may be a less overcap can be prevented that the cylindrical cover integral stopper discharges erroneous when malfunction or when inadvertently lever is depressed. The switching from the locked state by the stopper to the unlocked state, switching is also possible to easily perform from unlocked state and vice versa to the lock state.

Since the lower surface groove for locking the cylindrical cover integrated stopper is provided on the lower surface of the pressing plate, the more reliable locking is achieved by fitting the cylindrical cover integrated stopper in the lower surface groove.

  In the case where a stopper locking member for locking the cylindrical cover integrated stopper is formed on the upper surface of the recess, the cylindrical cover integrated stopper can be folded in a closed state when the unlocked stopper is not used. Therefore, the discharge can be reliably performed without hindering the downward pressing of the pressing plate.

1 shows an aerosol-type ejection body provided with an ejection head according to the present invention, in which the left half is a front view and the right half is a half sectional view. (A) is a rear view of the aerosol-type discharge body provided with the discharge head of FIG. 1, (b) is a side view. It is a longitudinal cross-sectional view which shows the locked state which the stopper has acted on the discharge head. It is a longitudinal cross-sectional view which shows the lock release state which canceled the stopper in the discharge head. It is a longitudinal cross-sectional view which shows a discharge state when the lever main body is pushed downward in the discharge head.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a first embodiment showing an aerosol-type ejection body provided with an ejection head according to the present invention, in which the left half is a front view and the right half is a half sectional view. FIG. 2A is a rear view of an aerosol-type discharge body including the discharge head of FIG. 1, and FIG. 2B is a side view. FIG. 3 is a longitudinal sectional view showing a locked state in which a stopper acts on the ejection head, FIG. 4 is a longitudinal sectional view showing an unlocked state in which the stopper is released in the ejection head, and FIG. It is a longitudinal cross-sectional view which shows a discharge state when the lever body is pushed.

  The aerosol-type discharge body 10 shown in the present embodiment includes two aerosol container bodies 20, a stationary platen 40 for fixing the aerosol container body 20, and a discharge head 1 that is assembled to the fixed aerosol container body 20. .

  The two aerosol container bodies 20 are aerosol container bodies each containing different contents, and for example, contain a liquid agent used by mixing contents such as cosmetics and hair dyes. Note that the two aerosol container bodies 20 may be aerosol container bodies containing the same type of contents. The aerosol container body 20 has a stem 21 projecting from the upper surface so as to be pushed in an upward biased state, and the internal discharge valve is opened by pushing the stem 21 so that the contents are discharged from the upper end of the stem 21. The one with is used.

  The stationary platen 40 is provided with two holes to be assembled in a state where the neck portions of the aerosol container bodies 20 are juxtaposed, inserted into the neck portions of the aerosol container bodies 20 in the holes, and fitted at the upper outer periphery of each container body 20, Thereafter, it is attached to the cylindrical cover 30 and assembled to the ejection head 1.

  As shown in FIGS. 3 to 5, the discharge head 1 includes a cylindrical cover 30 having a cylindrical cover integrated stopper 34 integrated with a cylindrical cover that prevents the pressing plate 61 from being pushed downward. A nozzle head 50 having a nozzle 56, and a lever body 60 having a pressing plate 61.

  The cylindrical cover 30 is provided with locking holes 32 on both sides in the longitudinal direction of the outer peripheral wall 31 for detachably attaching the fixing plate 40, and the locking projections 41 of the fixing plate 40 are locked in the locking holes 32. be able to. An upper pressing plate 33 is provided above the locking hole 32. When the upper pressing plate 33 is pushed inward from both sides, the locking hole 32 is moved outward, and the locking hole 32 is locked. The locking of the protrusion 41 can be released, and the two aerosol container bodies 20 can be separated by being fixed to the ejection head 1 by the fixing plate 40. Further, in the short direction of the outer peripheral wall 31, a recess 37 a in which the nozzle 56 is disposed is formed in the front, and a recess 37 b in which the pressing plate 61 extending from the lever body 60 is disposed in the rear. The upper half of the cylindrical cover 30 has a double structure having an inner cylinder 38, and a rib 39 projecting inward is formed at the lower end of the inner cylinder 38. A cylindrical cover integrated stopper 34 that restricts the pressing plate 61 from being inadvertently pushed downward is formed on the upper surface of the rear recess 37b. The cylindrical cover integrated stopper 34 is provided with a hinge that can be freely opened and closed with respect to the upper surface of the recess 37 b, and is integrally connected to the cylindrical cover 30. On the upper surface of the recess 37b, stopper locking protrusions 35, which are stopper locking members for locking the cylindrical cover integrated stopper 34, are provided. Has been.

  The nozzle head 50 includes a box-shaped main body 53 in which fitting cylinders 51 that are respectively fitted to the stems 21 are vertically suspended from both sides of the bottom plate 52, and communicates with a nozzle 56 penetrating a depression 37a from the front of the main body 53. A flow path is formed inside. The nozzle head 50 forms a main body 53 by extending a top wall 55 from an upper end edge of a peripheral wall 54 erected from a peripheral portion of a horizontally long elliptical bottom plate 52. Further, the nozzle head 50 has fitting tubes 51 having upper ends opened on both sides of the bottom plate 52, respectively, and further projects a nozzle 56 having a base end opened at the front center of the peripheral wall 54 forward. And the center of the nozzle 56 is extended from the center in the main body 53, the partition wall 57 which divides the inside of the main body 53 and the nozzle 56 into two is provided, and two contents are discharged from each fitting cylinder 51 by an individual route. It is configured. The nozzle head 50 is formed by integrally forming an upper half including the nozzle 56 and a lower half including the fitting cylinder 51, bending the hinge half 58 at the rear, and combining the upper and lower portions.

  The lever body 60 is formed in a horizontally long oval shape that substantially matches the inside of the inner cylinder 38. The lever body 60 is provided with a pressing plate 61 and a top plate 62, and projecting pieces that engage with the inner surface of the inner cylinder 38 are provided on the peripheral walls 63 at both ends in the longitudinal direction of the top plate 62. A notch for allowing the nozzle 56 to pass is vertically provided from the front edge of the top plate 62, and a pressing plate 61 is provided behind the lever body 60 so as to be rotatable up and down via a hinge 66. The pressing plate 61 has a recessed portion for placing a finger at the rear portion, and a lower surface groove 64 and a pressing protrusion 65 are formed on the lower surface for more securely locking the cylindrical cover integrated stopper 34.

  The pressing protrusions 65 are provided at the central portion of the top wall 55 and the left and right upper portions of the fitting cylinders 51 so as to face the top wall 55 of the nozzle head 50 when the lever body 60 is assembled to the cylindrical cover 30. It is provided in the place. From the locked state in which the cylindrical cover integrated stopper 34 is engaged with the lower surface groove 64, the pressure plate 61 is once pushed up from the locked state to release the stopper, and the cylindrical cover integrated stopper 34 is removed from the lower surface groove 64. After the release, when the pressing plate 61 is pushed down, the pressing projection 65 is lowered until it abuts on the top wall 55, and when the pressing plate 61 is further pushed down, the nozzle head 50 moves downward, and each stem 21 is pushed in. The contents in each container body 20 are discharged from the tip of the nozzle 56 from the tip of the stem 21 through the flow path.

  Next, the operation of the ejection head 1 will be described.

  When the aerosol-type ejector 10 is not in use, such as during storage, in the ejection head 1 shown in FIG. 3, the cylindrical cover integrated stopper 34 is engaged with the lower surface groove 64 on the lower surface of the pressing plate 61 so as to push down. The locked state is restricted. In order to change from the locked state in which the stopper is locked to the unlocked state in which the pressing plate 61 can be pushed downward, the pressing plate 61 is once pushed up to remove the cylindrical cover integrated stopper 34 from the lower surface groove 64. Release to release the stopper. Thereafter, the cylindrical cover-integrated stopper 34 is tilted outward via a hinge, locked to the stopper locking protrusion 35, and closed as shown in FIG.

  In order to discharge the contents from the nozzle 56, when the pressing plate 61 is further pushed down from the state where the pressing protrusion 65 is in contact with the top wall 55, the nozzle head 50 is pressed downward as shown in FIG. Each stem 21 is pressed downward, and the contents in each container body 20 are discharged from the tip of the nozzle 56 from the tip of the stem 21 through the flow path.

  When the pressing to the pressing plate 61 is released, the nozzle head 50 is raised by the upward biasing force of each stem 21 and the pressing plate 61 is restored to the original state. After that, when the locking of the cylindrical cover integrated stopper 34 by the stopper locking protrusion 35 is released and returned to the locked state where the cylindrical cover integrated stopper 34 is locked in the lower surface groove 64, the lever portion is inadvertently moved. It is possible to prevent erroneous ejection from pushing down.

  As mentioned above, although the structure of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example.

  In the embodiment described above, the partition wall 57 that divides the inside of the main body 53 and the nozzle 56 in the nozzle head 50 is provided in the nozzle head 50 and two contents are discharged by an individual route. It may be mixed and discharged.

  In the above embodiment, the lower surface groove 64 is formed on the lower surface of the pressing plate 61 in order to lock the cylindrical cover integrated stopper 34. However, even if a protrusion or step for locking the stopper is provided. I do not care. Furthermore, it can also be set as the structure made to discharge the aerosol container body 20 from one container body 20 from one set of two. In this case, one fitting cylinder 51 is provided at the center of the bottom plate 52, and the partition wall 57 that divides the inside of the discharge nozzle 56 into two is not necessary. Moreover, the pressing protrusion 65 is not limited to three places.

  As described above, in an overcapless state, it is possible to prevent erroneous operation or inadvertently pushing down a lever to cause erroneous discharge, and it is possible to provide a discharge head that can be easily switched.

DESCRIPTION OF SYMBOLS 1; Discharge head 10; Discharge body 20; Container body 21; Stem 30; Cylindrical cover 31; Peripheral wall 32; Locking hole 33; Upper press plate 34; Cylindrical cover integrated stopper 35; , 37b; hollow 38; inner cylinder 39; rib 40; fixed plate 41; locking projection 50; nozzle head 51; fitting cylinder 52; bottom plate 53; body 54; peripheral wall 55; top wall 56; Hinge 60; lever body 61; pressing plate 62; top plate 63; peripheral wall 64; lower surface groove 65; pressing protrusion 66;

Claims (3)

A cylindrical cover (30) detachably attached to the neck of the container body (20);
A nozzle head (51) having a fitting cylinder (51) fitted to the stem (21) of the container body (20) and a nozzle (56) communicating with the fitting cylinder (51) and movable up and down. 50),
A lever body (60) having a pressing plate (61) for pressing the nozzle head (50) downward,
Lock to enable the to form a recess (37b) said tubular cover (30), depressed downward in the locking state and the pressing plate for restricting the depression of the lower side of the pressing plate (61) (61) A cylindrical cover integrated stopper (34) that can be changed to a released state is integrally connected via a hinge,
On the lower surface of the pressing plate (61), there is formed a lower surface groove (64) to which the tip of the cylindrical cover integrated stopper (34) can be locked,
The front end of the cylindrical cover integrated stopper (34) changed to the vertical posture is set to the locked state by engaging the lower surface groove (64), and the cylindrical cover unit changed from the vertical posture is set. The ejection head according to claim 1, wherein the unlocking state is set by detaching the tip of the body stopper (34) from the lower surface groove (64) . The ejection head according to claim 1 , wherein a stopper locking member for locking the cylindrical cover integrated stopper (34) is formed on an upper surface of the recess (37b). The discharge head according to claim 1 or 2 , wherein the container body (20) is an aerosol container.

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