JP5164485B2 - Liquid cosmetic applicator - Google Patents

Description

  The present invention relates to a liquid cosmetic applicator, and more particularly to a liquid cosmetic applicator for applying the liquid cosmetic to a soft body such as the skin or the oral cavity.

  Conventionally, some liquid cosmetic applicators have a liquid pressing mechanism or a liquid pressing means for pressurizing a coating liquid inside a main body in order to supply a coating liquid made of liquid cosmetic to a coating unit in a timely manner. .

  For example, an application member is attached to the front end portion of the shaft cylinder, a tank for storing liquid is provided in the shaft cylinder behind the application member, an introduction hole for introducing liquid discharged from the tank to the application member is provided, and a piston is provided in the tank. A liquid push-out means (liquid push mechanism) that pushes the piston forward to push the liquid in the tank to the coating member through the introduction hole portion is slidably fitted in the axial direction. There has been proposed a liquid applicator provided in (see Patent Document 1).

  A main body having a tank portion in which liquid is stored; a supply mechanism having a tip supply body connected to the tip portion of the main body for supplying liquid; and a drive mechanism for pushing the liquid in the tank portion to the supply mechanism; Has been proposed (see Patent Document 2).

  In such a liquid applicator, since it is exposed to the outside air in a state where a large amount of the application liquid is contained in the brush-like application body part after use, the deterioration or decay of the application liquid contained in the application body over time The problem that it is easy to cause

  In addition, a liquid applicator or an applicator container is known that uses an elastic body for the applicator and has a mechanism for preventing deterioration of the application liquid over time and entry of outside air.

  For example, it has a coating container body that contains the coating liquid inside, and a coating body that is provided at the front end of the coating container body and that applies the coating liquid to the coated body, and contacts the soft coating body with the front end of the coating body The coating body is used by applying the coating liquid to the body to be coated, and the coating body is made of a substantially cylindrical elastic body whose front and rear ends are always open, and the coating liquid in the body of the coating container is used. There has been proposed one that is introduced and discharged from the front end opening (see, for example, Patent Document 3).

However, although these liquid applicators are suitable for dropping the coating liquid, there is a problem that it is difficult to easily apply the coating liquid over a wide range. In addition, there is a disadvantage that it is further difficult to use when combined with a highly viscous coating solution due to the structure of the container.
JP-A-9-322819 Japanese Patent Application Laid-Open No. 2004-89592 JP-A-9-192581

  Therefore, the present invention has been made in view of the above-described conventional problems, and provides a liquid cosmetic applicator that can be easily applied over a wide range even if it is a high-viscosity liquid cosmetic. For the purpose.

  The present inventors pay attention to the fact that the application body is preferably an elastic material for application to a soft application body, and in combination with a liquid pressing mechanism provided in the main body, It has been found that the above object can be achieved by projecting further from the discharge port to the tip and forming a coated portion of the coated body, thereby achieving the present invention.

That is, the liquid cosmetic applicator of the present invention is characterized by the following configuration or means.
The invention of claim 1 has a substantially hollow cylindrical shape, and a main body having a small-diameter portion at the tip thereof;
A cap that is detachably fitted to the small diameter portion of the main body;
A tip shaft that is liquid-tightly fitted into the opening of the small-diameter portion of the main body,
An applicator provided to protrude forward of the front shaft;
A piston body that is slidably provided in close contact with the opening at the rear end of the main body, and a coating liquid storage space is formed at a portion surrounded by the rear end of the front shaft, the inner side of the main body, and the piston body. The liquid cosmetic in the application liquid storage space constitutes a liquid pressing means that moves and presses the piston body in the distal direction, and the high-viscosity application liquid is applied to the distal application body by the pressure of the liquid pressing means. A liquid cosmetic applicator that is supplied with
The high-viscosity coating liquid stored in the coating liquid storage space has a viscosity enough to remain on the discharge side of the communication path when it becomes a non-pressurized state after use of the application body,
The application body is made of an elastic body selected from rubber, elastomer, or restorative closed cell body, and has a discharge port that is always open, a front end side that communicates with the discharge port, and a rear end side that includes the application liquid storage space. And the application passage having a liquid holding portion provided to protrude further from the discharge port to the tip,
The discharge port opens to a slope or vertical surface rising from the rear end of the application part,
The portion protruding from the tip of the front shaft is selected from rubber, elastomer, or a closed cell having resilience, with the lower side of the cross section being substantially the same thickness as the application portion and the upper side of the cross section being less than the application portion. a liquid cosmetic applicator, wherein the communication passage is surrounded by the elastic body was formed.
A second aspect of the present invention, inclined surfaces which rise from said application portion rear end is a liquid cosmetic applicator according to claim 1, characterized in that it constitutes a shoulder which is stepped formed on a surface of the coating material is there.

A third aspect of the present invention, the coating material is a liquid cosmetic applicator according to claim 1 or 2, characterized in that it presents a flat tapered shape.
According to a fourth aspect of the present invention, a through-hole connected to the communication path is formed in the application body, and the liquid cosmetic is guided to the communication path from the coating liquid storage space into the through-hole, and the application body is supported. coating liquid supply pipe use is a liquid cosmetic applicator according to one of claims 1 3, characterized in that it is fitted fixed.

According to a fifth aspect of the present invention, the flat portion of the application portion of the application body is formed on a rough surface so as to temporarily hold the liquid cosmetic. This is a liquid cosmetic applicator.
A sixth aspect of the present invention is the liquid cosmetic applicator according to the fourth aspect, wherein a part of the communication path and one side of the discharge port are formed on the flat portion of the rough surface and the continuous surface. is there.
According to the seventh aspect of the present invention, the application part of the application body is formed in a generally scoop shape in which the central part is recessed from the side part when viewed in the width direction, and temporarily holds the liquid cosmetic. The liquid cosmetic applicator according to claim 1, wherein the liquid cosmetic applicator is characterized by the following.
The invention of claim 8 is characterized in that the liquid pressing means is
A screw rod having a distal end connected to the rear end of the piston body, an outer peripheral surface portion having a deformed cam shape in a cross-sectional view, and an external thread portion formed on the outer periphery;
An inner cylinder having a cantilever-like elastic structure on the surface that engages with the screw rod in an axially slidable and relatively non-rotatable manner, and has a protrusion provided at least in the vicinity of the front end in a radially outward direction. Material,
An outer cylinder cap that fits into the rear end of the inner cylinder material;
A female threaded portion that is threadedly engaged with the outer peripheral male threaded portion of the threaded rod, and a holding member that has a meshing portion with a groove portion that meshes with a projection of a cantilever-like elastic structure near the front end of the inner cylinder member prepare for,
By rotating the outer cylinder cap, the screw rod advances with the female screw of the holding member to push the piston body,
The liquid cosmetic applicator according to claim 1, wherein the high-viscosity application liquid in the application liquid storage space is supplied to the application body at the tip by pressing.
The invention according to claim 9 is the liquid cosmetic applicator according to claim 8 , wherein the protrusion of the cantilever-like elastic structure formed in the vicinity of the front end of the inner cylinder member has a triangular roof section. It is.

According to a tenth aspect of the present invention, in the liquid cosmetic applicator, by rotating the outer cylinder cap to one side, the screw rod advances with the female screw of the holding member and pushes the piston body, so that the liquid makeup in the coating liquid storage space is obtained. Along with the liquid pressing means for pressurizing the material, the screw rod is retracted by the female screw of the holding member and the piston body is pulled by rotating the outer cylinder cap to the other side, and the liquid cosmetic in the coating liquid storage space is decompressed. Constituting a liquid pressure reducing means,
On the inner peripheral surface of the holding member, a meshing portion comprising a tooth-shaped ratchet groove into which a projection having an elastic structure formed in the vicinity of the front end portion of the inner cylinder member is fitted is formed on the entire inner surface. The teeth of the mating part, the inner peripheral side corner is gentle on one side and the other side is upright,
In the meshing portion, the outer cylinder cap is rotated to one side, so that the protrusions get over the gentle corner from the groove between the teeth and fit into the next groove, and on the other hand, the outer cylinder cap is rotated to the other side. By having a configuration in which the protrusions get over the corners that are cut off from the grooves between the teeth and fit into the next grooves,
The liquid pressure reducing means is configured to rotate more heavily while feeling a sense of regulation by requiring a stronger rotational force than rotating the outer cylinder cap in the other direction. 8. A liquid cosmetic applicator according to 8 .

According to an eleventh aspect of the present invention, in the liquid pressing means, the fitting portion at the rear end of the inner cylinder member fitted with the outer cylinder cap has a cantilevered elastic structure having a radially outward projection. The inner cylinder cap has a groove portion with which the protrusion at the rear end of the inner cylinder material meshes,
When a rotational force exceeding a certain level is not applied during operation, the outer cylinder cap and the inner cylinder material rotate together. On the other hand, when a rotational force exceeding a certain level is applied, the protrusion of the elastic structure causes a groove in the outer cylinder cap. 11. The liquid cosmetic applicator according to claim 8 , wherein the liquid cosmetic applicator has a clutch structure in which the outer cylinder cap and the inner cylinder member are rotated relative to each other. 11.

  According to the configuration or means of the present invention as described above, the application body is made of an elastic body selected from rubber, an elastomer, or a closed cell body having resilience, and the discharge port that is always open; And a coating portion having a liquid holding portion that protrudes further from the outlet to the tip, protrudes from the front shaft portion, communicates with the coating liquid storage space and the discharge port, and has substantially the same thickness as the coating portion, Alternatively, a communication path surrounded by an elastic body selected from rubber, an elastomer, or a restorative closed cell having a thickness less than the coated portion is formed.

  And when the liquid cosmetics in a main body are pressurized by the liquid press means, liquid cosmetics discharges from the discharge port through the communicating path of an application body.

  Further, since the application part of the application body is provided so as to protrude further from the discharge port of the communication path to the tip, the liquid cosmetic material from the discharge port can be reliably transferred to the application part.

  In use, the application part is provided at the tip of the discharge port, making it easier to spread the liquid cosmetic on the target surface, and the application part can be easily wiped off after use. There is no liquid cosmetic that adheres to the surface.

  Therefore, even if the liquid cosmetic has a high viscosity, not only can it be applied simply, but there is no external microbial contamination, and there is no external air or external microbial contamination. Can be properly protected.

Further, in the present invention, by providing the application part with a liquid holding part that temporarily holds the discharged liquid cosmetic at the discharge port of the communication passage as described above, or by applying the application part itself to such a form, The discharged liquid cosmetic can be temporarily held efficiently. It is possible to avoid the dropping of the liquid due to the liquid ejecting from the discharge port.
In addition, the admissibility also appears in the pressurizing operation of the liquid pressing means. In addition, after use, the liquid cosmetic that accumulates in the liquid holding part can be easily wiped off with tissue paper, waste cloth, etc., and is excellent in hygiene.

  In the present invention, a liquid decompression means for decompressing the liquid cosmetic inside the main body is provided, and after the pressurization to the liquid cosmetic is stopped and used for application, the liquid cosmetic is decompressed by the liquid decompression means. Thus, the liquid cosmetic can be intentionally drawn into the main body from the communication path.

  Therefore, it is assumed that the liquid cosmetic contained therein has a viscosity that is high or high, and that the liquid cosmetic remains at the discharge side of the communication passage when no pressure is applied after use. However, the liquid cosmetic can be forcibly drawn from the communication path by decompressing the liquid cosmetic by the liquid decompression means.

  Therefore, after using the liquid cosmetic applicator, the liquid cosmetic does not exist outside the discharge port of the communication path. For this reason, even if the liquid cosmetics are not high or low in viscosity, there is no contact with the outside air after use, no external microbial contamination, no external air or external microbial contamination, etc. The liquid cosmetics to be protected can be protected appropriately and reliably.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings based on the best mode of the liquid cosmetic applicator. The liquid cosmetic applicator of the present invention (hereinafter also referred to as “liquid applicator”) is not limited to the following embodiment.

FIG. 1 is a side sectional view according to the first embodiment of the liquid applicator.
FIGS. 2A, 2B, and 2C are a side sectional view, a half sectional plan view, and an axial view from the tip of the structure of the front shaft portion according to the first embodiment of the liquid applicator. is there. 3A and 3B are a perspective view and a longitudinal sectional view of an application body provided in the liquid applicator of FIG.

4 (a), 4 (b) and 4 (c) are a side sectional view of a structure of a front shaft portion according to a second embodiment of the liquid applicator, a plan view of a half cross section, and a diagram viewed from the tip in an axial direction is there.
FIGS. 5A, 5B, and 5C are a side sectional view, a half sectional plan view, and an axial view from the tip of the structure of the front shaft portion according to the third embodiment of the liquid applicator. is there.

6 (a), 6 (b) and 6 (c) are a side sectional view, a half sectional plan view, and a diagram viewed from the tip in the axial direction of the structure of the front shaft portion according to the fourth embodiment of the liquid applicator. is there.
7 (a), (b) and (c) are a side sectional view, a half sectional plan view, and an axial view from the tip of the structure of the front shaft portion according to the fifth embodiment of the liquid applicator. is there.

FIGS. 8A and 8B are a side view and a plan view of the structure of the application unit according to the sixth embodiment of the liquid applicator.
FIG. 9 is a longitudinal sectional view according to a seventh embodiment of the liquid applicator. 10A, 10B, and 10C are a longitudinal sectional view, a perspective view, and a cross-sectional view taken along line CC of FIG. 9 of the inner cylinder material of the rotary operation member according to the seventh embodiment of the liquid applicator. FIG.

  As shown in FIGS. 1 to 3, the liquid applicator 1 according to the first embodiment includes a liquid pressing mechanism (liquid pressing means) 6 that pressurizes the liquid cosmetic application liquid 4 inside the main body 2. The coating liquid 4 is supplied to the coating body 10 by pressing the liquid pressing mechanism 6.

  The application body 10 is made of an elastic material, and a communication path 24 including a through hole communicating with the inside and outside of the main body 2 is formed. The application portion 10 a of the application body 10 is further provided from the discharge port 8 of the communication path 24. Projecting to the tip.

  Moreover, as shown in FIG. 1, the liquid applicator 1 includes a main body 2 which is an outer cylinder as a main member, a tip shaft 3 disposed at the front of the main body, a coating liquid 4 inside the main body, a coating body 10, a liquid pressing mechanism 6, and A cap 7 that covers the application body 10 is provided.

  The main body 2 has a substantially hollow cylindrical shape, and a small-diameter portion 2a having an outer diameter substantially the same as the inner diameter of the tapered cap 7 is formed at the tip portion thereof, and the cap 7 is detachably attached to the small-diameter portion 2a. Mated.

  In the opening of the small-diameter portion 2 a of the main body 2, the base end of the front shaft 3 is fitted in a liquid-tight manner, and a liquid pressing mechanism 6 is disposed at the rear end of the main body 2. The gasket 35 is slidably provided in close contact with the inner wall of the opening at the rear end of the main body 2.

  Therefore, a portion surrounded by the inside of the main body 2, the rear end portion of the front shaft 3, and the piston body 35 is formed as a coating liquid storage space (storage tank) 2 b for the coating liquid 4.

  The liquid pressing mechanism 6 includes a rotation operation member 31, a screw rod 32 (presser), a holding member 34 for the screw rod 32, and the above-described piston body 35 as main members.

  The rotation operation member 31 includes an outer cylinder cap 36 and an inner cylinder material 37 that are non-rotatably joined to each other, and the entire rotation operation member 31 is rotatably provided at the rear portion of the main body 2.

  The holding member 34 is made of an annular member, and is attached to the main body 2 by non-rotation so as to be inserted. The meshing portion 38 between the holding member 34 and the rotation operation member 31 (the inner peripheral surface of the inner cylinder member 37) is formed with a ratchet, and the rotation operation member 31 is in relation to the holding member 34 (the body 2 to which the rotation operation member 31 is fixed). The rotation is restricted so as to rotate only in one direction. In addition, it is possible to provide a torque limiter function for releasing the restriction and enabling rotation when a certain amount of rotational force is applied in one direction.

  A male screw is formed on the outer periphery of the screw rod 32, and the male screw is screwed into a female screw formed in the central hole of the holding member 34. Further, the outer peripheral surface portion of the screw rod 32 has an irregular cam shape in a cross-sectional view (for example, a notch is formed in a radial end portion in a cross-sectional view to show a roughly oval shape), and a rotation operation member. The engaging portion 39 of the inner cylinder member 37 (further forward portion of the engaging portion 38) has an irregular cam shape in which the inner shape of the center hole corresponds to the outer peripheral shape of the screw rod 32. Since the screw rod 32 is inserted into the center hole of the engaging portion 39, the screw rod 32 is slidable in the axial direction with respect to the rotation operation member 31 (via the engaging portion 39) and is not relatively rotatable. Is engaged.

  The distal end portion of the screw rod 32 is connected to the piston body 35, and when the rotary operation member 31 rotates in a predetermined direction, the screw rod 32 moves forward toward the distal end direction of the main body 2 via the holding member 34, whereby the piston The body 35 is moved in the distal direction, and the coating liquid 4 is pressed.

  As shown in FIG. 2 to FIG. 3, the tip shaft 3 is formed to have a tapered cylindrical structure whose diameter is reduced toward the tip, and the tip of the applicator 10 is placed in the inner space released before and after the tip shaft 3. It accommodates in the protruded state, and is fixed to the main body 2 in the accommodated state. As will be described later, the application body 10 has a shape that becomes flatter and thinner toward the tip.

  An annular fitting recess 3 a is formed on the outer periphery of the rear portion of the front shaft 3. The fitting recess 3 a is press-fitted into an annular fitting convex portion (not shown) formed on the inner surface of the small diameter portion 2 a in the main body 2 to prevent the front shaft 3 from being detached from the main body 2. .

  Further, a flange portion 3b is formed on the outer peripheral portion of the front shaft 3, and the flange portion 3b is in contact with the front end surface of the small diameter portion 2a. A plurality of ribs 3 c extending in the axial direction are formed on the inner surface of the front shaft 3 at equal intervals on the inner peripheral surface, and the rear end portion of the application body 10 is formed by the rear end surface of the rib 3 c and the front end surface of the pipe joint 12. The application body 10 is sandwiched and fixed in the front shaft 3 by sandwiching the flange-shaped portion having the diameter increased.

  The application body 10 is made of an elastic body and is supported by the pipe joint 12 and the application liquid supply pipe 13. The coating liquid supply pipe 13 is fitted and fixed in the central through-hole 12a of the pipe joint 12, and an intermediate portion (lead shaft 3) having a large diameter from the rear end portion of the hole portion 10b provided in the application body 10. To the tip of the liquid) and also serves as a liquid leakage suppression mechanism.

  The application body 10 has tapered portions 21 and 22 on both sides, and has a flat tapered shape. A step is formed in the taper portion 21 on the upper surface, and the discharge port 8 of the communication passage 24 opens in the shoulder portion 23 in a horizontally long rectangular shape along the flat direction. The application part 10 a of the application body 10 is formed further from the discharge port 8 of the communication path 24 toward the tip.

  The communication path 24 communicates with a hole 10b formed in the inside of the application body 10 along the axial direction. When the coating liquid 4 is pressurized by the liquid pressing mechanism 6, the communication path 24 passes through the hole 10b. The coating liquid 4 flows through 24.

  In the present invention, the entire application body 10 may be an elastic body, or only the front application portion 10a may be formed of an elastic body and may be formed of an elastic body whose base is difficult to deform. The application portion 10a is made of an elastic material, and an elastic material such as rubber or elastomer can be raised. Moreover, as long as the material of the application part 10a is liquid-tight, for example, it can be used without any problem as long as it is an elastic body that does not have open cells and is an elastic body that does not have bubbles or a closed-cell elastic body.

For example,
(1) Examples of the rubber include NBR, silicon rubber, EPDM, fluorosilicon rubber, fluorine rubber, urethane rubber, natural rubber, chlorobrene rubber, butadiene rubber, and butyl rubber.
(2) Examples of the elastomer include a styrene elastomer, a vinyl chloride elastomer, an olefin elastomer, a polyester elastomer, a polyamide elastomer, and a urethane elastomer.
(3) Examples of the closed cell body include polyethylene foam, polyvinyl chloride foam, and polystyrene foam.

  As shown in FIGS. 2 to 3, the application portion 10 a is a portion further extending from the shoulder portion 23 formed with a step, and is formed as a flat portion 25, and a rough surface portion 26 is formed on one surface of the flat portion 25. Is done. The communication path 24 is opened in the shoulder portion 23 by the horizontally-long rectangular discharge port 8 as described above. The communication path 24 has a part of the inner surface and one side of the discharge port 8 on the continuous surface with the rough surface 26. Is formed.

  The coating liquid 4 discharged from the discharge port 8 of the communication path 24 is temporarily held on the rough surface portion 26 of the flat surface portion 25 once. The amount of the coating liquid retained in such a portion depends on the type of cosmetic used. In addition, as described above, a part of the communication path 24 and one side of the discharge port 8 are formed on the rough surface 26 and the continuous surface, so that the extruded coating liquid is smoothly retained on the rough surface 26 without stagnation. Flows out.

In the liquid applicator 1 thus configured, in the normal state, the coating liquid 4 is contained in the body 2, the pipe joint 12 of the front shaft 3, the coating liquid supply pipe 13, and the hole of the coating body 10. The portion 10b is filled. In use, when the user rotates the rotation operation member 31 of the liquid pressing mechanism 6 by a predetermined amount, the rotation rod 31 is rotated by the transmission of the engagement portion 39 by the rotation of the rotation operation member 31. It advances toward the tip by screwing with the holding member 34.

  As a result, the piston body 35 advances in the distal direction, and pressurizes the coating liquid 4 in the coating liquid storage space 2b. The coating liquid 4 is pushed through the communication path 24 by pressure and pushed out to the coating portion 10a, whereby the coating liquid 4 is discharged from the discharge port 8 by a predetermined amount.

  Even if the discharged coating liquid 4 slightly protrudes, it is temporarily held by the rough surface portion 26 of the flat surface portion 25 extending to the tip, and is guided and applied to a soft surface to be coated such as skin. After the application is completed, the application liquid collected on the flat surface portion 25 is easily wiped off with a tissue paper, a waste cloth or the like.

  Further, since the liquid pressing mechanism 6 uses a ratchet, the rotation operation member 31 is rotated by a predetermined amount by one operation of the rotation operation member 31, and the piston body 35 is moved by a predetermined amount for each operation. It has an extruding mechanism. For this reason, the coating liquid can be accurately supplied to the coating portion 10a by a desired predetermined amount.

  Therefore, when pressurized, the coating liquid 4 is discharged from the discharge port 8 and can be used smoothly.

  Further, a flat portion (liquid holding portion) 25 that temporarily holds the discharged coating liquid 4 is provided in the application portion 10a at the discharge port 8 of the communication path 24, thereby preventing the discharged coating liquid 4 from suddenly jumping out. Falling can be prevented.

  From the above, the coating liquid 4 that comes into contact with the outside air after use is limited to the coating portion 10a from the discharge port 8, and since these can be easily removed, even the coating liquid 4 having a high viscosity can be simply applied. In addition, the built-in coating solution 4 can be sufficiently protected from the outside air and microbial contamination from the outside.

FIG. 4 is a view showing an applicator according to a second embodiment of the liquid applicator of the present invention.
In the liquid applicator shown in FIG. 4, the parts other than the applicator 10 have substantially the same structure as the structure of the front shaft in FIG. 2, and therefore similar parts or similar parts are denoted by the same reference numerals. Therefore, the detailed explanation is omitted.

  As shown in FIG. 4, a comb portion 44 is formed from the discharge port 8 opened in the communication passage 24 existing in the shoulder portion 23 of the application body 10 toward the tip. The coating liquid 4 discharged from the discharge port 8 is temporarily attached to the comb portion 44 or held by the surface tension of the liquid, and the comb portion 44 becomes a liquid holding portion for temporarily holding, and the central role of the coating portion 10a. I am doing.

FIG. 5 is a view showing an applicator according to a third embodiment of the liquid applicator of the present invention.
In the liquid applicator shown in FIG. 5, the parts other than the applicator 10 have substantially the same structure as the structure of the front shaft in FIG. 2, and therefore similar parts or similar parts are denoted by the same reference numerals. Therefore, the detailed explanation is omitted.

  As shown in FIG. 5, a generally scoop-shaped portion 43 such as a shovel or a scoop is formed from the discharge port 8 opened in the communication passage 24 existing in the shoulder portion 23 of the application body 10 toward the tip. The coating liquid 4 discharged from the discharge port 8 is temporarily stored, and the substantially scoop-shaped portion 43 is formed as a temporary liquid holding portion and plays a central role in the coating portion 10a.

FIG. 6 is a view showing an applicator according to a fourth embodiment of the liquid applicator of the present invention.
In the liquid applicator shown in FIG. 6, the parts other than the applicator 10 have substantially the same structure as the structure of the front shaft in FIG. 2, and therefore similar parts or similar parts are denoted by the same reference numerals. Therefore, the detailed explanation is omitted.

  As shown in FIG. 6, the temporary liquid holding part 41 further extending from the discharge port 8 of the communication passage 24 existing in the shoulder 23 of the application body 10 to the tip is formed at an acute angle part 42. It is like a knife. With such a shape, while the temporary liquid can be retained, the coating liquid 4 can be accurately applied along the contours of the eyes, lips and the like.

FIG. 7 is a view showing an applicator according to a fifth embodiment of the liquid applicator of the present invention.
The liquid applicator shown in FIG. 7 has substantially the same structure as the structure of the front shaft in FIG. 2 except for the applicator body 10, so that the same or similar parts are denoted by the same reference numerals. Therefore, the detailed explanation is omitted.

  The application body 10 shown in FIG. 7 is formed such that the discharge port 8 opened in the communication path 45 is inclined with respect to the axial direction of the application body 10. As described above, in the present invention, the way of inserting the slit shape in the discharge port 8 of the communication passage 45 can be appropriately changed according to the form of the application portion and the application surface.

FIG. 8 is a view showing an applicator according to a sixth embodiment of the liquid applicator of the present invention.
The liquid applicator shown in FIG. 8 has substantially the same structure as that of the applicator shown in FIG. 2 except for the applicator 10. Therefore, the same or similar parts are denoted by the same reference numerals. Detailed description thereof is omitted.

  The application portion 10a shown in FIG. 8 has bifurcated claws 48 formed on both sides of a liquid holding portion 47 that extends further from the discharge port 8 of the communication passage 24 existing in the shoulder portion 23 to the tip. In such a structure, the coating liquid is easily held between the claws by the surface tension, and can be suitably applied to a special surface to be coated.

  FIG. 9 is a longitudinal sectional view showing the entirety of the seventh embodiment of the liquid applicator of the present invention, and FIG. 10 is a detailed explanatory view of a rotary operation member.

  The liquid applicator 20 shown in FIG. 9 has substantially the same structure as that of the first embodiment of the liquid applicator of the present invention shown in FIGS. 1 and 2 except for the configuration of the liquid decompression mechanism (liquid decompression means) 54. Therefore, similar parts or similar parts are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 9 to 10, the liquid applicator 20 according to the seventh embodiment is provided with a liquid decompression mechanism 54 that decompresses the coating liquid 4 inside the main body 2, and the coating liquid 4 is applied by the liquid pressing mechanism 6. After the pressurization is stopped, the coating liquid 4 is decompressed by the liquid decompression mechanism 54 so that the coating liquid in the communication path 24 can be drawn into the main body 2 side.

  The liquid pressing mechanism 6 and the liquid decompression mechanism 54 include a piston body (pressure acting part) 35 that pressurizes and decompresses the coating liquid 4 by moving forward and backward in the coating liquid storage space 2b inside the body 2, and a main body. And an operation conversion unit 55 that converts a rotation operation by the user to the rotation operation member 31 facing the outside of the piston body 35 into the forward movement / reverse movement movement of the piston body 35.

  Specifically, as shown in FIGS. 9 to 10, the liquid applicator 20 according to the seventh embodiment includes a main body 2 that is an outer cylinder as a main member, a front shaft 3, a coating liquid 4, and a liquid pressing mechanism 6. , A liquid decompression mechanism 54, an operation conversion unit 55, and a cap 78. The liquid decompression mechanism 54 and the operation conversion unit 55 are configured by the liquid pressing mechanism of the liquid applicator 1 according to the first embodiment shown in FIG. Different from only 6.

  As shown in FIGS. 2 to 3, the application body 10 has a flat tapered shape with double-sided taper portions 21 and 22 at the tip portions that protrude from the front shaft 3 and are exposed. A step is formed in the taper portion 21 on the upper surface, and a tip end opening of a continuous communication path 24 ahead of the hole 10b is formed as a discharge port 8 in the shoulder portion 23, and the application portion 10a of the application body 10 is a discharge port. It is formed from 8 toward the further. Of course, in addition to what is shown in FIGS. 2 to 3, those shown in FIGS. 4 to 8 can be adopted as the application body 10.

  As shown in FIG. 9, in the liquid applicator 20 according to the seventh embodiment, the liquid pressing mechanism 6 and the liquid decompression mechanism 54 that are integrated are arranged at the rear end of the main body 2. The piston body 35 of the mechanism 6 and the liquid decompression mechanism 54 is slidably provided in close contact with the inner wall of the opening at the rear end of the main body 2.

  The liquid pressing mechanism 6 and the liquid pressure reducing mechanism 54 include an operation conversion unit 55, a screw rod 32 (presser), a holding member 34 for the screw rod 32, and the above-described piston body 35 as main members.

  The operation conversion unit 55 is composed of an outer cylinder cap 56 and an inner cylinder material (also referred to as a “feed-out body”) 57 that are normally mutually non-rotatable and are joined so as to be rotated relative to each other by a predetermined rotational force. The whole 55 is rotatably provided in the main body 2.

  Specifically, as shown in FIG. 10, the inner cylinder member 57 is provided with notches in various places, and the diameter is gradually increased from the front part (57f) and the central part (57c) to the rear part (57r). It is cylindrical.

  The inner cylinder member 57 has a cantilever-like elastic structure 58 in which elasticity is provided at least in the radial direction by a U-shaped notch on the side surface portion of the rear portion thereof. Each cantilever-like elastic structure 59 is provided with elasticity at least radially outward by the notches.

  Protrusions 58a and 59a having a triangular roof-like cross section when viewed in the axial direction are provided on the respective surface portions of the cantilever-like elastic structures 58 and 59 so as to protrude outward in the radial direction.

  On the central portion side of the rear portion of the inner cylinder member 57, a flange portion 60 having a plurality of annular convex portions whose diameters are increased stepwise than the central portion is formed on the outer periphery. When the front portion of the inner cylinder member 57 is mounted in the main body 2, the front end surface of the flange portion 60 is in contact with the rear end surface of the main body 2 so that it does not go into the main body 2 any more. Is attached to the rear portion of the inner cylinder member 57 so that the inner peripheral step portion of the outer cylinder cap 56 is rotatably fitted to the outer periphery of the flange portion 60 to prevent it from coming off.

  Further, a groove along the axial direction is formed in the rear portion of the inner peripheral surface of the outer cylinder cap 56, and the protrusion 58a on the surface of the cantilever-like elastic structure 58 is engaged with the groove, so that the inner cylinder material 57 The outer cylinder cap 56 and the outer cylinder cap 56 are integrally rotated during operation, and when a rotational force of a certain level or more is applied, the protrusion 58a of the elastic structure 58 is released from the groove of the outer cylinder cap 56 and rotates relative to the clutch structure. There is no.

  The engaging portion 39 provided at the front portion of the inner cylinder member 57 is a hole having a deformed cam shape in the front center hole corresponding to the outer peripheral shape of the screw rod 32. Since the screw rod 32 is inserted into the center hole of the engaging portion 39, the screw rod 32 is slidable in the axial direction to the operation converting portion 55 (via the engaging portion 39) and is not relatively rotatable. Is engaged.

  A male screw is formed on the outer peripheral surface of the threaded rod 32 inserted into and engaged with the engaging portion 39 except for a notch, and the male screw is screwed into a female screw formed in the central hole of the holding member 34. Combined.

In the embodiment, the male screw and the female screw are right-handed screws. When the outer cylinder cap 56 of the operation converting portion 55 is rotated to the right with respect to the main body 2 , the screw rod 32 is rotated to the right via the engaging portion 39. The male screw of the screw rod 32 is advanced by the female screw of the holding member 34, presses the piston body 35, and pressurizes the coating liquid in the coating liquid storage space (storage tank) 2b (liquid pressing function). On the contrary, when the outer cylinder cap 56 is rotated counterclockwise with respect to the main body 2 , the screw rod 32 is rotated counterclockwise via the engaging portion 39, whereby the male screw of the screw rod 32 is retracted by the female screw of the holding member 34. Then, the piston body 35 is pulled to decompress the coating liquid in the coating liquid storage space 2b (liquid decompression function).

  In addition, each screwing location of the screw rod 32 and the holding member 34 can be a left-hand screw as needed. In that case, the coating liquid 4 is pressurized by a left rotation in reverse to the above, while the coating liquid 4 is depressurized by a right rotation.

The holding member 34 is an annular member having a substantially double cylindrical shape in which the small-diameter portion 34b is fixed to the inner side of the large-diameter portion 34a, and the outer peripheral surface of the large-diameter portion 34a is fitted in the main body 2 and rotated. It is attached impossible.
A right-handed female screw is formed on the inner peripheral surface of the small diameter portion 34b of the holding member 34, and a tooth-shaped ratchet groove into which the protrusion 59a of the elastic structure 59 is fitted on the inner peripheral surface of the large diameter portion 34a. A meshing portion 61 is formed around the entire inner surface.

  As shown in FIG. 10C, the teeth of the meshing portion 61 are such that the inner peripheral side corner portion is gentle on one side and the other side is raised. In a state where the inner cylinder member 57 is fitted from the rear of the holding member 34, the protrusion 59a of the elastic structure 59 is fitted into the meshing portion 61.

  When the operation conversion unit 55 is rotated clockwise (in the direction of arrow R in FIG. 10) with respect to the main body 2 (one-side rotation), the inner cylinder member 57 is rotated clockwise through the outer cylinder cap 56 and engaged. The screw rod 32 rotates clockwise through the portion 39, and the screw rod 32 moves forward by screwing with the female screw of the holding member 34, and the piston body 35 is drawn out to make the coating solution in the main body pressurized.

  When the inner tube material 57 of the operation conversion unit 55 is rotated on one side (rotation in the R direction) over the operation conversion unit 55, the screw rod 32, and the holding member 34, the protrusion 59a is fitted in the groove between the teeth. Since it hits the above-mentioned gentle corner from the inserted state and gets over the corner and fits into the next groove, a pressurizing structure that turns lightly while feeling the click is formed.

  On the other hand, over the same operation converting portion 55, screw rod 32 and holding member 34, when this inner cylinder member 57 is rotated on the other side (rotation in the anti-R direction), the protrusion 59a is formed in a groove between teeth. Since it hits the above-mentioned sharp corner from the fitted state and gets over the corner and fits into the next groove, it does not rotate unless a force (torque) stronger than one direction is applied to rotate it, so it feels like a regulation It constitutes a decompression structure that turns and feels heavy.

  In this way, in the meshing part 61, when the holding member 34 and the operation converting part 55 (the inner peripheral surface of the inner cylinder member 57) are desired to discharge the coating liquid 4, they are ratcheted to one side and easily rotated and discharged. Make it easier. On the other hand, when the coating solution 4 is retracted after use, it can be rotated to the other side, but the rotation of the coating solution 4 is restricted so that the rotation is difficult, so that the decompression of the coating solution 4 becomes gentle. Accordingly, it is possible to reliably prevent the coating liquid from being rapidly discharged from the discharge port 8 or the air from being pulled in as the coating liquid 4 is rapidly pulled into the main body 2.

  Of course, the inner peripheral surface of the outer cylinder cap 56, the inner cylinder material 57, and the elastic structure are arranged so that the coating liquid 4 is not suddenly drawn when a rotational force of a certain level or more is applied to the operation conversion section 55 during decompression. A torque limiter function for releasing the torque transmission and enabling idling is released by disengaging the 58 projection 58a.

  It should be noted that the present invention is not limited to the above-described embodiments, and can of course be modified within the scope of the technical idea of the present invention.

It is a sectional side view concerning a 1st embodiment of a liquid cosmetics applicator (liquid applicator). (A), (b) and (c) are the side sectional view of the structure of the front-axis | shaft part which concerns on 1st Embodiment of a liquid cosmetic applicator, the top view of a half cross section, and the figure seen from the front-end | tip direction. is there. (A), (b) is the perspective view and longitudinal cross-sectional view of the application body which are provided in the liquid cosmetics applicator of FIG. (A), (b) and (c) are the side sectional view of the structure of the front-axis | shaft part which concerns on 2nd Embodiment of a liquid cosmetics applicator, the top view of a half section, and the figure seen from the front-end | tip direction. is there. (A), (b) and (c) are the side sectional view of the structure of the front-axis | shaft part which concerns on 3rd Embodiment of a liquid cosmetics applicator, the top view of a half section, and the figure seen from the front-end | tip direction. is there. (A), (b), and (c) are the side sectional view of the structure of the front-axis | shaft part which concerns on 4th Embodiment of a liquid cosmetics applicator, the top view of a half section, and the figure seen from the front-end | tip direction. is there. (A), (b) and (c) are the side sectional view of the structure of the front-axis | shaft part which concerns on 5th Embodiment of a liquid cosmetics applicator, the top view of a half section, and the figure seen from the front-end | tip direction. is there. (A) And (b) is the side view and top view of the structure of the application part which concern on 6th Embodiment of a liquid cosmetics applicator. It is a longitudinal cross-sectional view which concerns on 7th Embodiment of a liquid cosmetics applicator. (A), (b) and (c) are the longitudinal cross-sectional view of the inner cylinder material of the rotary operation member which concerns on 7th Embodiment of a liquid cosmetics applicator, a perspective view, and the crossing which follows the CC line of FIG. FIG.

Explanation of symbols

1 Liquid applicator (liquid cosmetic applicator)
2 Main body 2a Small diameter part 2b Coating liquid storage space (storage tank)
3 Lead axis 4 Coating liquid (liquid cosmetics)
6 Liquid pressing mechanism (Liquid pressing means)
7 Cap 8 Discharge port 10 Application body 10a Application part 12 Pipe joint 12a Through-hole 13 Application liquid supply pipe 20 Liquid application tool 21 Tapered part 23 Shoulder part 24 Communication path 25 Plane part (temporary liquid holding part)
26 Rough surface portion 31 Rotation operation member 32 Screw rod 34 Holding member 34a Large diameter portion 34b Small diameter portion 35 Piston body 36 Outer cylinder cap 37 Inner cylinder material 38 Engagement portion 39 Engagement portion 41 Liquid holding portion 42 Sharp angle portion 43 Approximate scoop Shape part 44 Comb part 45 Communication path 47 Liquid holding part 48 Forked claw 54 Liquid decompression mechanism (liquid decompression means)
55 Operation conversion part 56 Outer cylinder cap 57 Inner cylinder material 58 Elastic structure 58a Projection 59 Elastic structure 59a Projection 60 Flange part 61 Engagement part R Right rotation direction (pressure direction)

Claims (11)

A main body having a generally hollow cylindrical shape and having a small-diameter portion at the tip,
A cap that is detachably fitted to the small diameter portion of the main body;
A tip shaft that is liquid-tightly fitted into the opening of the small-diameter portion of the main body,
An applicator provided to protrude forward of the front shaft;
A piston body that is slidably provided in close contact with the opening at the rear end of the main body, and a coating liquid storage space is formed at a portion surrounded by the rear end of the front shaft, the inner side of the main body, and the piston body. The liquid cosmetic in the application liquid storage space constitutes a liquid pressing means that moves and presses the piston body in the distal direction, and the high-viscosity application liquid is applied to the distal application body by the pressure of the liquid pressing means. A liquid cosmetic applicator that is supplied with
The high-viscosity coating liquid stored in the coating liquid storage space has a viscosity enough to remain on the discharge side of the communication path when it becomes a non-pressurized state after use of the application body,
The application body is made of an elastic body selected from rubber, elastomer, or restorative closed cell body, and has a discharge port that is always open, a front end side that communicates with the discharge port, and a rear end side that includes the application liquid storage space. And the application passage having a liquid holding portion provided to protrude further from the discharge port to the tip,
The discharge port opens to a slope or vertical surface rising from the rear end of the application part,
The portion protruding from the tip of the front shaft is selected from rubber, elastomer, or a closed cell having resilience, with the lower side of the cross section being substantially the same thickness as the application portion and the upper side of the cross section being less than the application portion. liquid cosmetic applicator, wherein the communication passage is formed which is surrounded by an elastic body. 2. The liquid cosmetic applicator according to claim 1, wherein the slope rising from the rear end of the application portion constitutes a shoulder portion having a step formed on one surface of the application body.   The liquid cosmetic applicator according to claim 1 or 2, wherein the application body has a flat tapered shape. The application body has a through-hole connected to the communication path,
4. The liquid cosmetic material is guided from the coating liquid storage space to the communication path, and a coating liquid supply pipe for supporting the coating body is fitted and fixed to the through hole. The liquid cosmetic applicator according to item 1.   5. The liquid cosmetic applicator according to claim 1, wherein the flat portion of the application part of the application body is formed on a rough surface so as to temporarily hold the liquid cosmetic. 6.   6. The liquid cosmetic applicator according to claim 5, wherein a part of the communication passage and one side of the discharge port are formed on the flat portion of the rough surface and the continuous surface.   The application part of the application body is formed in a substantially scoop shape with the center part recessed from the side part when viewed in the width direction, and temporarily holds the liquid cosmetic. 4. The liquid cosmetic applicator according to 1 of 3. The liquid pressing means is
A screw rod having a distal end connected to the rear end of the piston body, an outer peripheral surface portion having a deformed cam shape in a cross-sectional view, and an external thread portion formed on the outer periphery;
An inner cylinder having a cantilever-like elastic structure on the surface that engages with the screw rod in an axially slidable and relatively non-rotatable manner, and has a protrusion provided at least in the vicinity of the front end in a radially outward direction. Material,
An outer cylinder cap that fits into the rear end of the inner cylinder material;
A female threaded portion that is threadedly engaged with the outer peripheral male threaded portion of the threaded rod, and a holding member that has a meshing portion with a groove portion that meshes with a projection of a cantilever-like elastic structure near the front end of the inner cylinder member prepare for,
By rotating the outer cylinder cap, the screw rod advances with the female screw of the holding member to push the piston body,
The liquid cosmetic applicator according to claim 1, wherein the high-viscosity application liquid in the application liquid storage space is supplied to the application body at the tip by pressing.   The liquid cosmetic applicator according to claim 8, wherein the protrusion of the cantilever-like elastic structure formed in the vicinity of the front end of the inner cylinder member has a triangular roof section. The liquid cosmetic applicator is a liquid pressing means that pressurizes the liquid cosmetic in the application liquid storage space by rotating the outer cylinder cap to one side to advance the screw rod with the female screw of the holding member to press the piston body. And a liquid decompression means for decompressing the liquid cosmetic in the coating liquid storage space by rotating the outer cylinder cap to the other side to retract the screw rod with the female thread of the holding member and pull the piston body. ,
On the inner peripheral surface of the holding member, a meshing portion comprising a tooth-shaped ratchet groove into which a projection having an elastic structure formed in the vicinity of the front end portion of the inner cylinder member is fitted is formed on the entire inner surface. The teeth of the mating part, the inner peripheral side corner is gentle on one side and the other side is upright,
In the meshing portion, the outer cylinder cap is rotated to one side, so that the protrusions get over the gentle corner from the groove between the teeth and fit into the next groove, and on the other hand, the outer cylinder cap is rotated to the other side. By having a configuration in which the protrusions get over the corners that are cut off from the grooves between the teeth and fit into the next grooves,
The liquid pressure reducing means is configured to rotate more heavily while feeling a sense of regulation by requiring a stronger rotational force than rotating the outer cylinder cap in the other direction. 8. A liquid cosmetic applicator according to 8. In the liquid pressing means, the fitting portion at the rear end of the inner cylinder member that fits with the outer cylinder cap has a cantilever-like elastic structure having a radially outward projection, and is provided inside the outer cylinder cap. Has a groove that engages the protrusion at the rear end of the inner cylinder,
When a rotational force exceeding a certain level is not applied during operation, the outer cylinder cap and the inner cylinder material rotate together. On the other hand, when a rotational force exceeding a certain level is applied, the protrusion of the elastic structure causes a groove in the outer cylinder cap. 11. The liquid cosmetic applicator according to claim 8, wherein the liquid cosmetic applicator has a clutch structure in which the outer cylinder cap and the inner cylinder member rotate relative to each other. 11.

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