JP6632305B2 - Cap of two-agent ejection device and two-agent ejection device with cap - Google Patents

Description

  The present invention relates to a cap of a two-part ejection apparatus and a two-part ejection apparatus with a cap.

Conventionally, as a hair treatment agent such as a hair coloring agent or a decolorizing agent, a first agent containing an alkali agent and a second agent containing hydrogen peroxide are mixed, and the first agent and the second agent are mixed immediately before use. There are known two-part hair treatment agents to be used as such.
In addition, the first agent and the second agent constituting such a two-part hair treatment agent are separately filled in two aerosol containers, and the first agent and the second agent are combined in one operation. There is also known a two-agent ejection device in which ejection is performed simultaneously from one ejection port provided in a nozzle portion or two adjacent ejection ports.
For example, in Patent Document 1, two aerosol containers for filling each of a first agent and a second agent constituting a hair cosmetic agent, and the two aerosol containers are connected and fixed, and the respective aerosols are fixed. A discharge head engaged with the ends of the two aerosol containers for discharging the first agent and the second agent filled in the container to the outside, wherein the first head and the second agent are provided on the discharge head; A two-agent ejection device is described in which an ejection port for ejecting an agent and an ejection button capable of simultaneously ejecting a first agent and a second agent from the ejection port when pressed are formed.

JP 2002-119328 A

According to the two-agent ejection device of Patent Literature 1, by pushing down the ejection button, the member provided with the nozzle having the ejection port at the tip is pushed down, and further, the stems of the two aerosol containers are pushed down by the member. The first agent and the second agent separately filled in the two aerosol containers are simultaneously discharged from the discharge ports.
Such a two-agent ejection device is excellent in operability and workability because it can eject two agents constituting a hair treatment agent by one operation, but on the other hand, storage, transportation, and use of the two-agent ejection device. When an unintended load is applied to the nozzle portion by hitting an object, body, or the like before and after, the stem of the aerosol container may be pushed down to discharge the contents.
In a conventional two-part ejection apparatus, in order to make the first and second parts sufficiently mixed, the first and second parts are discharged into a separately prepared container or sheet. In many cases, it is necessary to separately perform a mixing operation in the container or on the sheet, which is inconvenient.

  An object of the present invention is to provide a cap of a two-part ejection apparatus and a two-part ejection apparatus with a cap that can solve the problems of the related art.

  The present invention includes two aerosol containers separately filled with a first agent and a second agent constituting a hair treatment agent, and a discharge head attached to an upper portion of the two aerosol containers, wherein the discharge head includes: An outer cover, a discharge operation unit, and a nozzle portion protruding from the outer cover, wherein the first and second agents are discharged from the nozzle unit by the operation of the discharge operation unit. A cap detachably attachable to a head, the cap having a main body cover portion covering an upper end portion of the ejection head including the ejection operation portion portion, and a nozzle cover portion covering the nozzle portion, and a plan view of the cap. In the above, the nozzle cover portion protrudes from the main body cover portion, and a portion of the main body cover portion that covers an upper end portion of the discharge head is, when viewed from the lower end opening side, a plan view. Forming a recess shape elongated with respect to the coupling direction of the aerosol container, there is provided a cap of the two-agent delivery device.

  The present invention includes two aerosol containers separately filled with a first agent and a second agent constituting a hair treatment agent, and a discharge head attached to an upper portion of the two aerosol containers, wherein the discharge head includes: An outer cover, a discharge operation unit, and a nozzle unit protruding from the outer cover, wherein a first agent and a second agent are discharged from the nozzle unit by operating the discharge operation unit; It is a two-part ejection apparatus with a cap comprising a cap detachably attached to the ejection head of the two-part ejection apparatus, wherein the cap is a two-part ejection apparatus according to any one of claims 1 to 12. An object of the present invention is to provide a two-part ejection device with a cap, which is a cap.

  ADVANTAGE OF THE INVENTION According to the cap of the two-part discharge apparatus of this invention, and the two-part discharge apparatus with a cap, unintended discharge of an agent by applying an unintended load to a nozzle part or a discharge operation part can be prevented, and two-part discharge is possible. By using the cap removed from the device as a container for mixing the first agent and the second agent, preparation of a two-part hair treatment agent and subsequent application work can be easily performed.

1 (a) and 1 (b) are perspective views showing an embodiment of a two-part ejection apparatus with a cap according to the present invention, and FIG. 1 (a) shows a state where a cap is removed from the ejection head of the two-part ejection apparatus. FIG. 1B is a diagram showing a state in which a cap is attached to the ejection head of the two-agent ejection device. FIG. 2 is a perspective view showing the two-agent ejection device shown in FIG. 1 separated into an ejection head and an aerosol container. FIG. 3 is an enlarged sectional view taken along line III-III of FIG. FIG. 4 is a perspective view showing the cap of the two-agent ejection device shown in FIG. 1 with the lower opening side facing upward. 5A is a plan view of the cap of the two-agent ejection device shown in FIG. 4 as viewed from the lower end opening side, FIG. 5B is a cross-sectional view taken along line Vb-Vb of FIG. 4, and FIG. 5) is a cross-sectional view taken along the line Vc-Vc in FIG. 4, and FIG. 5D is a view corresponding to FIG. 5A showing a portion of the main body cover that covers the upper end of the ejection head. FIG. 6A is a schematic diagram showing a state in which the cap of the dual-ejection device shown in FIG. 1 is attached to the ejection head of the dual-ejection device in a normal state, and FIG. 6B is shown in FIG. FIG. 9 is a schematic view showing a state where the cap of the two-part ejection device is obliquely placed on the ejection head of the two-part ejection apparatus as compared with a normal mounting state. FIG. 7A shows a state where the first agent and the second agent discharged from the dual-agent discharge device shown in FIG. 1 are accommodated in the concave portion of the main body cover of the cap of the dual-agent discharge device shown in FIG. FIG. 7B is a schematic view showing a different holding method of the cap of the same two-part ejection device. FIGS. 8A and 8B are perspective views showing a main part of another embodiment of the present invention.

The present invention will be described below based on preferred embodiments with reference to the drawings.
As shown in FIGS. 1 (a) and 1 (b), a two-part ejection device with a cap 10 which is an embodiment of the two-part ejection device with a cap according to the present invention includes a first agent and a first agent constituting a hair treatment agent. A two-agent discharge device 3 including two aerosol containers 31 and 31 each of which is separately filled with a second agent, and a discharge head 33 attached to an upper portion of the two aerosol containers 31 and 31; And a cap 1 detachably attached to the ejection head 33 of the device 3. The cap 1 shown in FIG. 1 is an embodiment of the cap of the two-part ejection device of the present invention. In this specification, FIGS. 1 (a) and 1 (b) are combined, and FIGS. 1, 5 (a) to 5 (c) are combined into FIGS. 5, 8 (a) and 8 (a). (B) is also collectively expressed as FIG.

  The two-part ejection device 3 will be further described. As shown in FIGS. 2 and 3, the two aerosol containers 31 are connected to the upper end portions of the two aerosol containers 31 and the two aerosol containers 31 are connected to each other. A connecting member 34 for connecting the 31, 31 to the ejection head 33 is attached. As shown in FIG. 3, the connecting member 34 is attached by fitting an upper end 31b of the aerosol container 31 from which the stem 31a protrudes into two fitting recesses 34a formed in the connecting member 34. An opening 34b for inserting a stem is formed at the bottom of the fitting recess 34a. As shown in FIG. 1, the two aerosol containers 31 are integrally covered with a resin film 32 such as a shrink film and reinforced in an integrated state.

The ejection head 33 has an outer cover 35, an ejection button 38 as an ejection operation unit, and a nozzle portion 39 protruding from the outer cover 35. The nozzle portion 39 constitutes a part of the nozzle member 40 which is pushed down as the ejection button 38 is pushed down. The outer cover 35 covers portions other than the nozzle portion of the nozzle member 40 and the upper end portion 31b of the aerosol container 31.
As shown in FIG. 1A, the nozzle portion 39 protrudes from the outer cover 35 through a nozzle insertion opening 35a provided at a position on the front surface portion 36 of the outer cover 35 near the front. The nozzle portion 39 protrudes in a direction intersecting the vertical direction in a state where the two-agent ejection device 3 is upright, and more specifically, protrudes in a substantially horizontal direction. The nozzle portion 39 is provided with two ejection ports 39a for ejecting the first and second agents at the tip end in the protruding direction. As shown in FIG. The other end has a discharge channel 40a which is connected to the stem 31a and the other end of which forms a discharge port 39a.

The outer cover 35 has a top surface portion 36 and a tubular portion 37 having an oval cross section. As shown in FIGS. 1A and 6A, the outer cover 35 has a front surface 37f located in front F of the two-agent ejection device 3 in a direction in which the nozzle portion 39 projects, and the nozzle portion 39 projects. It has a rear surface 37r located at the rear R of the two-agent ejection device 3 in the opposite direction, and two side surfaces 37s located between the front surface 37f and the rear surface 37r. The front F and the rear R of the dual-ejection device 3 are defined by a direction orthogonal to the height direction of the dual-ejection device 3, the front F, the rear R, and the left and right directions based on the center position of the dual-ejection device 3. The front F and the rear R when divided into four directions.
The outer cover 35 has an opening 35b for a discharge button that opens from the top surface 36 to the upper portion on the rear surface 37r side of the cylindrical portion 37. One end of the ejection button 38 on the front surface side of the two-agent ejection device 3 is continuously provided around the opening 35b via a thin flexible portion. A pair of support walls 35c having slits functioning as a slide guide for the nozzle member 40 are provided inside the outer cover 35, and a projection 40b protruding from the nozzle member 40 slides in the slit. By moving, the movement direction of the nozzle member 40 and the nozzle portion 39 is regulated in the vertical direction.

The top surface portion 36 of the outer cover 35 has a protrusion 36a projecting upward, preferably a rib. With this, a space can be secured between the top surface portion 36 and the inner surface of the concave portion 12a of the main body cover portion 12 of the cap 1 in a state where the cap 1 is attached to the ejection head 33. Even if some remains in the concave portion 12a, the contamination of the ejection button 38 is reduced.

  Further, as shown in FIG. 3, when the protrusions 36a are provided at the left and right ends of the discharge button opening 35b, the user is prevented from pushing down the left and right ends of the discharge button 38. This is preferable because the first agent and the second agent separately filled in the two aerosol containers can be simultaneously discharged from the discharge port 39a of the nozzle in the same amount.

  According to the two-agent ejection device 3 having such a configuration, when the ejection button 38 is pressed down with a finger in a state where the cap 1 is removed, the ejection button 38 pushes down the nozzle member 40, and further, the nozzle member 40 By pushing down the two stems 31a to which the upward urging force is constantly applied, the first agent and the second agent separately housed in the two aerosol containers 31 pass through the separate discharge channels 40a. It is sent to the nozzle section 39 and discharged from separate discharge ports 39a.

  The connection member 34 described above is provided with a flexible piece 34d having an engagement protrusion 34c. The connection member 34 attached to the two aerosol containers 31 is inserted into the ejection head 33, and the engagement protrusion 34c Is engaged with the engagement hole 35d provided in the outer cover 35, whereby the two aerosol containers 31 and the ejection head 33 can be integrated. On the other hand, a pair of disengagement pieces 37a formed at opposing portions of the cylindrical portion 37 of the outer cover are pressed inward from the outside of the outer cover 35 to thereby form the engagement protrusions 34c and the engagement holes 34c. The engagement state of the portion 35d is released, and the two aerosol containers 31 and the ejection head 33 can be separated.

  In the cap 1 of the present embodiment, the engaging projection 11 provided in the vicinity of the lower end opening 1d of the cap 1 is engaged with the groove-shaped engaging recess 37b formed at the base of the engagement releasing piece 37a. Thus, the state of attachment to the ejection head 33 is stabilized, and unintended dropping of the cap 1 is prevented. The lower end opening 1d of the cap 1 is an opening of the depression 14 formed on the inner surface side of the cap 1, and the two-agent ejection device 3 is erected on a horizontal plane with the cap 1 attached to the ejection head 33. Sometimes it is located at the lower end of cap 1.

The cap 1 according to the present embodiment will be described in more detail.
As shown in FIGS. 1 and 6A, the cap 1 according to the present embodiment, when attached to the ejection head 33, has a main body cover 12 that covers the upper end of the ejection head 33 including the ejection button 38. And a nozzle cover 13 that covers the nozzle 39. The nozzle cover 13 protrudes from the main body cover 12 in a plan view of the cap 1 as shown in FIG.
The main body cover portion 12 of the cap 1 is a portion that mainly prevents an object or a body from unintentionally coming into contact with the discharge button 38 that is a discharge operation portion. In the cap 1 of the present embodiment, FIG. As shown in FIG. 6A, the outer cover 35 is formed so as to cover substantially the entire area of the top surface 36 of the outer cover 35 except for the portion where the nozzle 39 is present. The nozzle cover portion 13 of the cap 1 is a portion that prevents an object or a body from unintentionally coming into contact with the nozzle portion 39 protruding from the outer cover 35. In the cap 1 of the present embodiment, the nozzle cover portion 13 shown in FIGS. As shown in FIG. 6A, the nozzle portion 39 is formed so as to cover substantially the entire nozzle portion 39 protruding from the outer cover 35. It is preferable that the entire area of the nozzle portion 39 in the protruding direction is covered with the cap 1. It is preferable that at least the upper end portion of the nozzle portion 39 is accommodated in a concave portion that covers the nozzle portion in the height direction of the two-part ejection device 3 (the vertical direction in FIG. 6A). It is preferable that 20% or more, more preferably 50% or more, and even more preferably 100% of the height t (see FIG. 6A) is accommodated in the concave portion covering the nozzle portion of the cap 1.

  As shown in FIG. 5A, the main body cover portion 12 of the cap 1 according to the present embodiment has a front view F shape in which the nozzle portion 39 projects the dual-agent ejection device 3 when viewed from the lower end opening 1 d side. It has a shape that is long in a first direction (a connecting direction of the two aerosol containers) X, which is a left-right direction when viewed from the side, and more specifically, is an ellipse whose major axis is along the first direction X. The planar shape of the main body cover 12 is a shape that is long in the first direction X. The nozzle cover 13 is provided on one side of a central portion Xc of the main body cover 12 in the first direction X.

  The main body cover portion 12 of the cap 1 in the present embodiment has a concave portion 12a capable of covering the upper end portion of the discharge head 33 including the discharge button 38 portion, and the nozzle cover portion 13 covers the nozzle portion 39. It has a recess 13a that can be used. The inner surface shape of the main body cover portion 12 has a shape conforming to the shape of the upper end portion of the ejection head 33.

A portion of the main body cover portion 12 covering the upper end portion of the ejection head (a portion hatched in FIG. 5D) is a connection between the two aerosol containers when the cap 1 is viewed from the lower end opening side in a plan view. The concave portion 12a having a shape long in the direction X is formed. The shape that the concave portion 12a is long in the connection direction X means that the length in the connection direction X is longer than the length in the direction Y orthogonal to the connection direction X. The length of the recess 12a in the connection direction X is preferably 1.2 times or more, more preferably 1.5 times or more, and more preferably 5 times the length in the direction Y orthogonal to the connection direction X. Or less, more preferably 4 times or less, preferably 1.2 times or more and 5 times or less, and more preferably 1.5 times or more and 4 times or less.
In the present embodiment, an oblong concave portion is formed in plan view from the lower end opening side. Here, the elliptical shape means an elliptical shape, a track circular shape (a shape in which two opposing straight lines are connected by two arcs, and a shape of an athletic track). Is good. Note that the recess may be rectangular.

  Further, as shown in FIG. 7A, the cap 1 in the present embodiment is detached from the ejection head 33 and the lower end opening 1d side is directed upward, so that the first agent and the second agent can be used as two agents. It can be directly injected from the nozzle portion 39 of the discharge device 3 into the concave portion 12a of the main body cover portion 12, and the concave portion 12a of the main body cover portion 12 can be used as a container for mixing the first agent 5A and the second agent 5B. It is. In order to mix the first agent 5A and the second agent 5B, any tool such as a spatula, a cotton swab, or an applicator for applying a hair treatment agent to the hair or the like can be used. It is preferable to use an applicator from the viewpoint of the easiness of the operation when performing. FIG. 7A shows an applicator 5C having a brush portion 52 at the tip of a handle 51 as an example of an applicator.

  More specifically, the concave portion 12a of the main body cover portion 12 has a shape that is long in the connection direction X of the two aerosol containers 31, 31 when viewed from above from the lower end opening 1d side as described above. Therefore, the first agent 5A and the second agent 5B can be easily injected from one end to the other end in the longitudinal direction (X direction) of the concave portion 12a from the nozzle portion 39 of the two-agent ejection device 3, and the two agents are ejected in equal amounts. It is easier to check whether the operation has been performed. In addition, it becomes easier to inject both agents newly beside the first agent 5A and the second agent 5B injected into the concave portion 12a, and it is also easy to confirm whether the same amount of both agents has been discharged.

  When mixing the first agent 5A and the second agent 5B injected into the concave portion 12a of the main body cover portion 12 with an applicator, the wrist of the hand holding the applicator 5C is moved in the longitudinal direction of the concave portion 12a. It is easy to move and easy to mix both agents.

  Further, in the present embodiment, the concave portion 12a of the main body cover portion 12 forms an oval shape in plan view from the lower end opening side, and the end in the longitudinal direction has an arc shape. The brush portion 52 of the applicator 5C can be easily rotated, and the mixing of the two agents is further facilitated.

  Further, in the present embodiment, the concave portion 12a of the main body cover portion 12 not only forms a concave portion long in the connecting direction X of the two aerosol containers when viewed from the lower end opening portion 1d side, but also has a ceiling. In a plan view from the surface side, the shape is long with respect to the connection direction X of the two aerosol containers. Therefore, when mixing the two agents, the main body cover portion 12 is easily grasped by hand, and the mixing of the two agents is further improved. It will be easier.

In addition, according to the cap 1 and the cap-equipped dual-ejection device 10 of the dual-ejection device according to the present embodiment, since the cap 1 has the nozzle cover portion 13 that covers the nozzle portion 39 in addition to the main body cover portion 12, Before and after storage, transportation, and use of the two-agent ejection device, it is possible to prevent an object or a body from hitting the nozzle portion 39 and unintentionally ejecting the content.
In addition, the first agent and the second agent can be directly injected from the nozzle portion 39 of the two-agent ejection device 3 into the cap 1 with the lower end opening 1d facing upward by removing the cap 1, and the cap 1 is tray-shaped. Since they can be mixed as a container, there is no need to prepare a separate container or sheet for mixing the first agent and the second agent, and the preparation of the hair treatment agent or the adjustment and subsequent application work Can be easily performed.
Further, when mixing the hair treatment agent, the nozzle cover portion 13 can also be gripped by hand, and the mixing of the hair treatment agent is further facilitated.

  Further, in the cap 1 according to the present embodiment, as shown in FIG. 5, the concave portion 12 a of the main body cover portion 12 and the concave portion 13 a of the nozzle cover portion 13 communicate with each other to form an integrated depression 14. Of the first agent and the second agent can be injected into the depression 14, and the mixing of the two agents is further facilitated, and the number of times of discharging and mixing the hair treatment agent can be reduced.

In addition, in the plan view of the cap 1, one or more of the following effects (1) to (3) can be obtained by projecting the nozzle cover portion 13 from the main body cover portion 12.
(1) As shown in FIG. 7A, the nozzle cover 13 can be used as a knob, and it is easy to hold the tool used for mixing or applying to the hair or the like so as not to touch the hand. Becomes In order to use the nozzle cover 13 as a knob, the protrusion length L3 of the nozzle cover 13 from the main body cover 12 (FIG. 5A) is preferably 5 mm or more and 25 mm or less, and 8 mm or more and 20 mm or less. More preferred. In the present embodiment, it is 12 mm.
(2) When the concave portion 12a of the main body cover portion 12 and the concave portion 13a of the nozzle cover portion 13 form an integral depression 14, corner portions 14a, 14a of the peripheral wall at the boundary between the main body cover portion 12 and the nozzle cover portion 13 are formed. FIG. 5 (a)] shows that the hair treatment agent attached to the tool such as the applicator 5C can be rubbed, and the amount of the hair treatment agent attached to the applicator used for application to the hair or the like can be adjusted. It becomes easy to return the hair treatment agent attached to the tool used for mixing into the cap 1. Further, in mixing the hair treatment agent with a tool such as a brush portion 52 of the applicator 5C, corner 1 4a, by 14a increased stirring effect of the hair treatment agent, the mixing of the hair treatment agent becomes better.
(3) The hair treatment agent is applied to the hair in a tool such as the applicator 5C, the hair treatment agent with both hands where the glove when Komu massage the hair, placing the tool as chopsticks holder to the nozzle cover 13 Can be. In particular, when a tool is placed at the joint between the nozzle cover 13 and the main body cover 12, the peripheral wall portions 20 of both the nozzle cover 13 and the main body cover 12 come into contact with the tool, so that the tool is unlikely to roll. Become.

Further, in the cap 1 according to the present embodiment, as shown in FIGS. 4 and 5, the concave portion 12 a of the main body cover portion 12 and the concave portion 13 a of the nozzle cover portion 13 communicate to form an integrated depression 14. Further, a convex portion 14b is formed in a portion located at a boundary portion between the main body cover portion 12 and the nozzle cover portion 13 at the bottom of the recess 14.
With such a convex portion 14b, the brush portion 52 of the applicator 5C can be squeezed by the convex portion 14b to adjust the amount of the hair treatment agent contained in the brush portion 52. The brush 52 may be squeezed at the periphery of the opening of the recess 14 facing upward.
The protrusion 14b preferably extends along the first direction X.
Further, a step may be formed between the bottom of the main body cover 12 and the bottom of the nozzle cover 13 instead of the protrusion 14b. Even at such a stepped portion, the amount of the hair treatment agent contained in the brush portion 52 can be adjusted by squeezing the brush portion 52 or the like of the applicator 5C.

  The height d of the convex portion 14b and the step formed at the bottom of the recess 14 is preferably 5% or more and 50% or less, more preferably 10% or more and 25% or less of the maximum depth d1 of the concave portion 12a of the main body cover portion 12. % Or less.

As shown in FIG. 6A, the cap 1 in the present embodiment has a front F in the direction in which the nozzle portion 39 of the dual-agent ejection device 3 projects, and a rearward direction in the direction opposite to the direction in which the nozzle portion 39 projects. When R is set, the main body cover portion 12 has an asymmetric shape in the front-rear direction Y. More specifically, as shown in FIG. 5B, both end portions Xe, Xe of the main body cover portion 12 in the first direction X have a shape in which the inner surface shape of the main body cover portion 12 is orthogonal to the first direction X. It is asymmetrical between the one end 12f and the other end 12r in the two directions Y. More specifically, one end side 12f disposed on the front F side of the two-part ejection device 3 has an inclined step in the middle of the rising portion from the bottom portion 12b to the peripheral edge portion 12c of the lower end opening 1d directed upward. In contrast to the shape having the portion 12d, the other end 12r disposed on the rear R side of the two-agent ejection device 3 has a shape without such a step. The cross-sectional shape of both end portions Xe of the main body cover portion 12 substantially matches the cross-sectional shape of the outer cover 35 on the same plane.
As described above, in the cap 1 according to the present embodiment, since the main body cover portion 12 has an asymmetric shape in the front-rear direction Y, as shown in FIG. While it is possible to attach to the ejection head 33 with the ejection device 3 facing forward F, it is not possible to attach the ejection head 33 upside down.
By preventing the cap 1 from being attached upside down, it is possible to prevent the cap 1 from being attached in the opposite direction, and the side of the cap 1 not having the nozzle cover 13 contacts the nozzle 39. Inconvenience such as unintended ejection of the agent can be prevented.

In addition, as shown in FIG. 5C, the nozzle cover 13 of the cap 1 in the present embodiment has a concave portion 13a that covers the nozzle portion from the base end 13r side to the distal end 13f side in the protruding direction of the nozzle cover portion 13. The depth is increasing. The depth of the recess 13a covering the nozzle portion is a distance from the opening surface 15 of the recess 14 to the bottom 13b of the recess 13a. With such a configuration, when the cap 1 is attached to the ejection head 33, even if the cap 1 is tilted as shown in FIG. It becomes difficult to contact with. This can prevent unintended ejection of the agent and the like. In addition, the nozzle cover 13 of the cap 1 of the present embodiment has an inclined surface in which the bottom 13b of the concave portion 13a descends from the base end 13r side to the front end 13f side in the protruding direction of the nozzle cover portion 13.
The recess of the nozzle cover 13 preferably has a gap with a height L9 of 3 mm or more and 20 mm above the tip of the nozzle 39 when the cap 1 is normally attached to the ejection head 33 in FIG. More preferably, there is a gap of 6 mm or more and 15 mm or less.

Further, with such a configuration, as shown in FIG. 5C, the cap 1 has a small difference between the height t2 of the main body cover 12 and the height t3 of the nozzle cover 13, and the opening of the recess 14 is small. This is preferable because the stability when the surface 15 is placed on a horizontal surface with the surface 15 facing upward is improved. From the same viewpoint, the height t2 of the main body cover portion 12 and the height t3 of the nozzle cover portion 13 are different from each other when placed on various supports such as a table, a shelf, a sink, a desk, and a dressing table in a bathroom. From the viewpoint of improving stability, the absolute value of the difference (t2−t3) is preferably within 20% of the height t2 of the main body cover portion 12, and more preferably within 5%. As for the heights t2 and t3, the respective maximum heights are measured in a cross section shown in FIG. 5C, that is, a vertical cross section passing through the center of the nozzle cover portion 13 in the first direction X.
Note that the cap 1 of the present embodiment has a bottom portion 19 that forms the bottom of the depression 14 and a peripheral wall portion 20 that rises from the periphery of the bottom portion 19, and their thicknesses are substantially constant. Therefore, when the depth of the concave portion 13a of the nozzle cover portion 13 increases from the base end 13r side to the distal end 13f side in the protruding direction of the nozzle cover portion 13, the height t of the cap 1 also increases. It increases from the base end 13r side to the front end 13f side in the protruding direction of the nozzle cover portion 13.

  Further, steps 16 and 17 are provided on the outer peripheral portion of the nozzle cover portion 13 of the cap 1 in this embodiment as anti-slip means. More specifically, as shown in FIG. 7B, a pair of steps 16 are formed on a front end surface 13t of the nozzle cover portion 13 which is located at the front end in the protruding direction. One step portion 17 is formed on each of the side portions 13s, 13s located on both sides in the protruding direction of the portion 13. Each of the step portions 16 and 17 is formed by projecting the inner surface of the nozzle cover portion 13 toward the outer surface, and extends in the height direction of the cap 1.

  Further, a vertical rib 18 is provided on the outer peripheral portion of the main body cover portion 12 of the cap 1 in the present embodiment as a non-slip means. More specifically, as shown in FIG. 7B, vertical ribs 18 are provided on the outer surface of the main body cover portion 12 at a portion opposite to the side from which the nozzle cover portion 13 protrudes, with a space in the first direction X. Are formed. Each of the vertical ribs 18 protrudes toward the outer surface of the cap 1 and extends in the height direction of the cap 1.

By providing the non-slip means on the outer periphery of the cap 1, the state in which the cap 1 is held in one hand is stabilized, and the mixing operation of the first and second agents and the application of the prepared hair treatment agent to the hair and the like Work can be performed smoothly.
In the embodiment shown in FIG. 7A, when the cap 1 is gripped, the side face portions 13s, 13s located on both sides of the nozzle cover portion 13 in the protruding direction are provided with a step portion 17 or a vertical rib 18 as a non-slip means. It is preferable that a vertical rib similar to the above is formed.
In the embodiment shown in FIG. 7B, when the cap 1 is gripped, a step is formed on the outer surface of the distal end face 13t of the nozzle cover 13 and the outer surface of the body cover 12 opposite to the distal end face 13t of the nozzle cover. It is preferred that anti-slip means such as the part 16 or the vertical rib 18 be provided.
Note that a vertical rib may be formed in the nozzle cover 13 instead of the step, or a step and a vertical rib may be formed in the nozzle cover 13. Further, a step portion may be formed in the main body cover portion 12 instead of the vertical rib, and a vertical rib and a step portion may be formed in the main body cover portion 12.

  In addition, in the cap 1 according to the present embodiment, as shown in FIG. 5A, the coupling angle θ between the nozzle cover 13 and the main body cover 12 is an obtuse angle. In the present invention, the bonding angle θ between the nozzle cover portion 13 and the main body cover portion 12 may be a right angle or an acute angle, but by setting the bonding angle θ to an obtuse angle, the agent discharged into the main body cover portion 12, When stirring with a tool such as an applicator 5C provided with a brush portion, it is preferable because a portion of the brush portion and the tool hardly gets caught at a corner present at a joint portion between the nozzle cover portion 13 and the main body cover portion 12. From such a viewpoint, the obtuse angle θ is more preferably 95 degrees or more and 150 degrees or less, and further preferably 100 degrees or more and 130 degrees or less.

Further, in the cap 1 in the present embodiment, the concave portion 12a of the main body cover portion 12 is continuous with a smooth curved surface from the bottom portion 12b toward the side wall as shown in FIG. It is easy to wipe and is suitable for repeated use.
Recess 12a of the cover portion 12, the radius of curvature of the curved surface portion connecting the wall to stand up around the bottom 12b and the bottom portion 12 b which is a bottom portion when using the cap 1 as a container is preferably 2mm or more 20mm or less, More preferably, it is 3 mm or more and 12 mm or less. Here, the radius of curvature of the curved surface portion is a radius of curvature in a cross section orthogonal to both the bottom portion 12b and the wall surface.

8 (a) and 8 (b) are views showing the main part of another embodiment of the cap of the two-part ejection apparatus and the two-part ejection apparatus with a cap of the present invention.
In the embodiment shown in FIG. 8, the cap 1A removed from the ejection head 33 can be attached to the ejection head 33 of the dual-agent ejection device 3 with the lower end opening 1d of the cap facing upward. More specifically, the cap 1A has a main body cover portion 12 and a nozzle cover portion 13 similarly to the above-described cap 1, and has an opening at the tip end surface of the nozzle cover portion 13, and the periphery of the opening portion. Are provided with a pair of engaging projections 25, 25. The engagement projection 25 is inserted into and engaged with the engagement holes 26 formed in the outer cover 35 of the ejection head 33, so that the engagement projection 25 can be detachably attached to the ejection head 33.

As described above, when the cap 1A removed from the ejection head 33 can be fixed to the two-agent ejection device 3, the two-agent ejection device 3 to which the cap 1A is fixed is held in one hand and the applicator is held in the other hand. This makes it possible to apply the prepared hair treatment agent to the hair or the like, which is convenient. For example, when the hair treatment agent in the cap 1A is exhausted, the application operation can be continued as it is by pressing the discharge button 38 to take out the agent into the cap 1A and mix it in the cap 1A.
It should be noted that the cap 1A can be attached in a state in which the cap 1A can be attached obliquely to the horizontal plane as shown in FIG. This is preferable from the viewpoint that it is easy to visually confirm whether or not the ejection state of the first agent and the second agent ejected from 39 is good. However, the recess 14 may be attachable so that the opening surface is parallel to the horizontal plane.

  In the present invention, the two-part hair treatment agent is a concept including a hair dyeing or bleaching composition comprising a first part 1 and a second part 2 and mixing them at the time of use. In the case of hair coloring, the first agent 1 contains an alkali agent and a dye, and the second agent 2 contains hydrogen peroxide. In the case of decolorization, the first agent 1 contains an alkali agent without containing a dye, and the second agent 2 contains hydrogen peroxide. It is preferable that the shapes of the first agent and the second agent when ejected from the two-agent ejection device are foam or cream. The “hair” in the hair treatment is preferably human hair, but may be the head hair of a pet such as a dog or a cat, or body hair other than the head.

As the alkaline agent contained in the first agent 1, ammonia, alkanolamines such as monoethanolamine, sodium hydroxide, potassium hydroxide and the like can be used. As a buffer, an ammonium salt such as ammonium bicarbonate or ammonium chloride, a carbonate such as potassium carbonate or sodium bicarbonate, or the like can be appropriately added.

  When the two-part hair treatment agent is for hair coloring, the dye contained in the first part 1 may be an oxidation dye or a direct dye. Examples of the oxidation dye include paraphenylenediamine, paraaminophenol, toluene-2,5-diamine, N, N-bis (2-hydroxyethyl) paraphenylenediamine, 2- (2-hydroxyethyl) paraphenylenediamine, Dye precursors such as amino-3-methylphenol, 6-amino-3-methylphenol, orthoaminophenol, 1-hydroxyethyl-4,5-diaminopyrazole, resorcinol, 2-methylresorcinol, metaaminophenol, para-amino ortho Examples include couplers such as cresol, 5- (2-hydroxyethylamino) -2-methylphenol, metaphenylenediamine, 2,4-diaminophenoxyethanol, and 1-naphthol. Examples of the direct dye include paranitro orthophenylenediamine, paranitrometaphenylenediamine, basic yellow 87, basic orange 31, basic red 12, basic red 51, basic blue 99, acid orange 7, and the like.

  The first agent 1 and the second agent 2 may contain various additives as necessary, such as a fragrance, an ultraviolet absorber, a sequestering agent such as edetic acid, a bactericide, and methyl parahydroxybenzoate. Preservatives such as dibutylhydroxytoluene, 1-hydroxyethane-1,1-diphosphonic acid, stabilizers such as oxyquinoline sulfate, organic solvents such as ethanol, benzyl alcohol and benzyloxyethanol, and high water solubility such as hydroxyethyl cellulose. Molecular compounds, humectants and the like.

  The cap is preferably a molded product of a synthetic resin from the viewpoint of being used as a container for mixing the first agent and the second agent. Various known synthetic resins such as polyolefins such as polypropylene and polyethylene, polyesters such as polyethylene terephthalate, and polyamides such as nylon can be used as the synthetic resin.

  As a form of sale that is one embodiment of the cap of the dual-agent ejection device of the present invention, sale of only the cap 1, sale of a set of the cap 1 and the ejection head 33, and an aerosol container in which the cap 1 and the connecting member 34 are fixed And a set sale of the aerosol containers 31 and 31 to which the cap 1, the discharge head 33 and the connecting member 34 are fixed, and a set sale of any of these and an applicator. Further, in the two-part ejection apparatus with a cap of the present invention, a two-part ejection apparatus in which a cap is actually attached detachably to the ejection head of the two-part ejection apparatus, and a set in which the two-part ejection apparatus and the cap are separated. Both are included.

Although some embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be appropriately changed.
For example, instead of being continuously provided on one side of the central portion Xc in the longitudinal direction or the first direction of the main body cover portion 12, the nozzle cover portion 13 has an end in the longitudinal direction or the first direction X of the main body cover portion 12. It may be provided continuously on one side of the part Xe.
The shape in plan view from the lower end opening side of the main body cover portion 12 can be an arbitrary shape such as an elliptical shape or a rectangular shape with rounded corners, instead of the oval shape. The planar shape viewed from the lower end opening side of the nozzle cover 13 may be an arbitrary shape such as a square shape, an inverted trapezoidal shape, or an arc shape instead of the trapezoidal shape.

The nozzle portion may have a completely independent flow path for the two agents up to its tip, or the nozzle portion may be such that the two agents come into contact or are mixed somewhat in the nozzle portion. Regarding the two-part ejection device and the two-part hair treatment agent, the points that are not particularly described can be the same as in Patent Document 1.
Various known hair treatment agents can be used as the two-part hair treatment agent. The first and second agents constituting the hair treatment agent are also known as the first and second agents constituting the hair treatment agent. Can be used without any particular limitation.

DESCRIPTION OF SYMBOLS 10 Two-discharge device with cap 1, 1A Cap 1d of two-discharge device 1d Lower end opening 11 Engagement convex part 12 Main body cover part 12a Recess 13 Nozzle cover part 13a Recess 14 Depression 14b Convex part 15 Depression opening surface 16, 17 Step (anti-slip means)
18 vertical ribs (anti-slip means)
3 Two-part discharge device 31 Aerosol container 33 Discharge head 38 Discharge button (discharge operation unit)
39 Nozzle part

Claims (12)

It comprises two aerosol containers separately filled with a first agent and a second agent constituting a hair treatment agent, and a discharge head attached to an upper portion of the two aerosol containers. An operating portion, and a nozzle portion protruding from the outer cover, the first operating agent and the second operating agent being detachably attached to the ejection head in the two-agent ejection device in which the first and second agents are ejected from the nozzle portion by operating the ejection operating portion. A cap that can be attached to the
It has a main body cover part covering the upper end part of the discharge head including the discharge operation part part, and a nozzle cover part covering the nozzle part, and in a plan view of the cap, the nozzle cover part is separated from the main body cover part. Protruding,
The portion of the main body cover that covers the upper end of the ejection head, when viewed in plan from the lower end opening side, forms a long concave portion along the connection direction of the two aerosol containers ,
The cap of the two-part ejection device , wherein the nozzle cover has a concave portion that covers the nozzle portion, and the depth of the concave portion increases from a base end side in a protruding direction of the nozzle cover portion toward a distal end side. . A portion of the main body cover that covers an upper end of the ejection head,
2. The cap of the two-part ejection apparatus according to claim 1, wherein the cap is usable as a container for mixing the first part and the second part when the cap is removed from the ejection head. 3.   The part of the main body cover that covers the upper end of the discharge head forms an elliptical recess when viewed in plan from the lower end opening side, of the two-part ejection device according to claim 1 or 2. cap. The body cover includes a recessed portion that covers the upper portion of the discharge head, and is a concave recess and said nozzle cover portion of the body cover portion communicating to form a recess in the integral body cover The cap of the two-part ejection device according to any one of claims 1 to 3, wherein both the concave part of the part and the concave part of the nozzle cover part can be used for mixing the first agent and the second agent. 5. The cap of the two-part ejection device according to claim 4, wherein a protrusion or a step is formed at a portion located at a boundary between the main body cover and the nozzle cover at a bottom of the depression.   When the direction in which the nozzle portion protrudes is defined as front, and the direction opposite to the direction in which the nozzle portion protrudes is defined as rearward, the main body cover portion has an asymmetric shape in the front-rear direction, and The cap of the two-part ejection device according to any one of claims 1 to 5, wherein the cap cannot be attached upside down. The two-agent ejection according to any one of claims 1 to 6 , wherein the height of the cap of the nozzle cover portion increases from a base end side in a protruding direction of the nozzle cover portion to a distal end side. Equipment cap. The height and the height of the nozzle cover portion of the cover portion, the absolute value of their difference is within 20% of the height of the body cover, the cap of the two-agent delivery system according to claim 7 . The cap of the two-agent discharge device according to any one of claims 1 to 8 , wherein a non-slip means is provided on an outer peripheral portion of the nozzle cover portion. The cap of the two-part ejection device according to any one of claims 1 to 9 , wherein a non-slip means is provided on an outer peripheral portion of the main body cover portion. The cap of any one of claims 1 to 10 , wherein a joining angle between the nozzle cover portion and the main body cover portion is an obtuse angle. It comprises two aerosol containers separately filled with a first agent and a second agent constituting a hair treatment agent, and a discharge head attached to an upper portion of the two aerosol containers. A two-part discharge device having an operation part and a nozzle part protruding from the outer cover, wherein the first part and the second part are discharged from the nozzle part by operating the discharge operation part; and the two-part discharge apparatus A two-part ejection device with a cap, comprising a cap detachably attached to the ejection head of
A two-part ejection apparatus with a cap, wherein the cap is the cap of the two-part ejection apparatus according to any one of claims 1 to 11 .

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