JP2016049334A - Applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an applicator capable of agitating a coating liquid without unevenness with light operation force.SOLUTION: Provided is the applicator characterized in that, in a liquid container, in an inner space of an inner shaft, an agitation blade for agitating a coating liquid, a valve rod body with a screw which is joined with the agitation blade, and a screw member which is screwed with the valve rod body with a screw, and is fixed to the inner shaft, are stored, the screw member moves forward following to pressing a rear end of the inner shaft, and the agitation blade rotates by rotation of the valve rod body with a screw.SELECTED DRAWING: Figure 1

Description

  The present invention provides a liquid or fluid (liquid material) liquid material such as cosmetics or chemicals stored in the housing portion of the shaft body, and the liquid material stored by a feeding operation or the like that presses the tail end is sent to the coating body. Concerning ingredients.

  2. Description of the Related Art Conventionally, in a liquid material supply container represented by Japanese Patent Application Laid-Open No. 2013-163016 (: Patent Document 1) or Japanese Patent Application Laid-Open No. 2009-160928 (: Patent Document 2), the operation is performed by pressing the tail end forward. The shaft advances, and the liquid material in the shaft body can be discharged.

  However, in this liquid material supply container, when the coating liquid (manicure liquid, etc.) in which the contents are mixed with a material having a specific gravity difference is stored, the agitation stored in the inner shaft by shaking the inner shaft before use. It is necessary to disperse the coating liquid by moving the ball, and there is a possibility of damaging the components in the inner shaft.

  Therefore, a writing instrument that disperses the coating liquid without requiring an agitation operation as disclosed in Japanese Patent Application Laid-Open No. 11-42885 (: Patent Document 3) is disclosed. This writing instrument has a structure in which a rotating blade disposed in an ink tank is rotated through a knock bar by pressing a knock crown.

JP 2013-163016 A JP 2009-160928 A JP 11-42885 A

  However, in the writing instrument shown in Patent Document 3, when stirring is performed, force is required because the knock bar is directly pressed forward and stirred. Further, since the rotary blade is cylindrical, when the coating solution is stirred, stirring cannot be performed over the entire inner shaft, and the coating solution cannot be sufficiently stirred.

  Then, this invention makes it a subject to provide the outstanding applicator which can stir a coating liquid uniformly with a light operation force.

The present invention relates to a liquid container in which an inner shaft that stores a coating liquid in an inner space is located in an outer shaft, and the coating liquid is sent out by moving the inner shaft forward and backward relative to the outer shaft.
In the inner space of the inner shaft, there are a stirring blade for stirring the coating liquid, a threaded valve rod body joined to the stirring blade, and a screw member screwed to the threaded valve rod body and fixed to the inner shaft. Contain,
The applicator is characterized in that the screw member advances as the rear end of the inner shaft is pressed, and the stirring blade is rotated by the rotation of the threaded valve rod body.

  In the present invention, the stirring blade is preferably provided with a flat member.

  In the present invention, it is preferable that the inner shaft rear end inner surface and the threaded valve rod body are separated from each other.

  In the stirring operation of the applicator, it was necessary to swing the container that had previously contained the stirring ball at a high speed for stirring (repeatedly shake in the axial direction). The inner shaft is pressed from the rear end instead of the ball so that the stirring blade can be rotated, so that it is possible to provide a container structure that does not require a stirring operation of swinging the container such as a vertical swing. Can be played.

It is a longitudinal section showing the whole applicator concerning an embodiment of the present invention. It is explanatory drawing of the action | operation of the applicator shown in FIG. 1, (a)-(e) is a state figure for every 90 degrees whose rotation angle of a stirring blade is 0-360 degrees. It is explanatory drawing of the stirring blade of the applicator shown in FIG. 1, (a) is a view from the front, (b) is a plan view, (c) is a front view partially showing a longitudinal section, (d) is the rear FIG. It is explanatory drawing of the modification 1 of a stirring blade, (a) is the view from the front, (b) is a longitudinal cross-sectional view, (c) is the view from the back. It is explanatory drawing of the state which assembled the valve rod body with a screw, the stirring blade, the inner tip shaft, etc. to the inner shaft. It is explanatory drawing of a screw body (spring receptacle), (a) is a side view, (b) is a longitudinal cross-sectional view ((c) BB sectional view), (c) is a rear view, (d) (B) is the DD line sectional view of (b), (e) is the EE line sectional view of (b). It is explanatory drawing of a valve-rod body with a screw, (a) is a side view, (b) is a 90 degree rotated side view, and (c) is a longitudinal cross-sectional view. It is explanatory drawing of an ink introduction pipe | tube, (a) is a side view, (b) is a longitudinal cross-sectional view, (c) is a view seen from back. It is explanatory drawing of the modification 2 of a stirring blade, (a) is the view from the front, (b) is a top view, (c) is the front view which showed a partial longitudinal section, (d) is the view from the back FIG. It is explanatory drawing of the modification 3 of a stirring blade, (a) is the view from the front, (b) is a top view, (c) is the front view which showed a partial longitudinal section, (d) is the view from the back FIG. It is explanatory drawing of the modification 4 of a stirring blade, (a) is the view from the front, (b) is a top view, (c) is the front view which showed a partial longitudinal section, (d) is the view from the back FIG.

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

  FIG. 1 is an explanatory view of an applicator according to the embodiment, FIG. 2 is an operation explanatory view, and FIGS. 3 to 8 are explanatory views of respective parts. In addition, the front described in this specification shows the application body side, and back shows the opposite side to the application body side.

  As shown in FIG. 1, the applicator is configured such that the inner shaft 12 that stores the coating liquid in the inner space is positioned in the outer shaft 10, and the inner shaft 12 moves forward and backward relative to the outer shaft 10. It is a liquid container that sends

  In the applicator, the inner space of the inner shaft 12 is screwed into a stirring blade 38 for stirring the coating liquid, a threaded valve rod body 32 joined to the stirring blade 38, and the threaded valve rod body 32. A spring receiver (screw member) 34 fixed to the inner shaft 12 is accommodated, and the spring receiver 34 moves forward when the rear end of the inner shaft 12 is pressed by the user (user of the applicator). As a result, the threaded valve rod 32 rotates and the stirring blade 38 rotates at the same time.

In the applicator according to the embodiment, a tank-shaped inner shaft 12 is disposed in a substantially cylindrical outer shaft 10 having an open rear end portion 10b so as to be movable back and forth.
When the user knocks the rear end portion 12b of the inner shaft 12, the inner shaft 12 moves forward with respect to the outer shaft 10, the internal pressure of the inner shaft 12 rises for a short time, and at the same time, a valve mechanism 14 described later opens and closes. .
Thus, in the applicator, the application liquid is supplied to the application body 16 provided at the distal end portion 10a of the outer shaft 10.

Each part of the applicator will be described.
In the applicator, the tip shaft 22 is fixed to the tip portion 10 a of the outer shaft 10, and the tip of the application body 16 is exposed from the tip of the tip shaft 22 to fix the application body 16.
The outer shaft 10 distal end portion 10a has a stepped and narrow diameter, and has a bowl-like shape of an ink introduction pipe (a conduit for circulating the coating liquid from the valve mechanism 14 to the application body 16) 18 on the front surface of the distal end portion 10a. The outer periphery (expanded in a flange shape) of the tip 18a is brought into contact.
The rear portion of the application body 16 is inserted into the tip end portion 18 a of the ink introduction tube 18 through an annular seal ring 20 made of an elastic material.
The tip shaft 22 has a hollow and narrow cylindrical shape, and the tip end 22 of the tip shaft 22 is passed through the hollow portion of the tip shaft 22 from the central portion of the application body 16 and the tip portion 18a of the ink introduction tube 18. The application body 16, the seal ring 20, and the ink introduction tube distal end portion 18 a are fixed to the outer shaft 10 by fitting the shaft 22 to the outer shaft distal end portion 10 a.

  A pipe-shaped guide rod 24 inserted into the opening of the ink introduction tube 18 passes through the inside of the seal ring 20 and comes into contact with the rear end of the application body 16 to guide the ink.

  Further, a cap (not shown) that covers and protects the application body 16 is detachably fitted to the outer shaft tip portion 10a.

  The inner shaft 12 is a liquid storage space 12c in which the rear end portion 12b is closed and the inside stores the coating liquid. On the other hand, the valve mechanism 14 is housed in the front end portion (tip portion of the inner shaft) 12a and is fixed by the inner front shaft 26.

  Specifically, as shown in FIG. 5, in the state where the valve mechanism 14 is housed in the front end portion 12 a in which the front side of the inner shaft 12 is thinned, the rear end portion 18 b in which the hole of the ink introduction pipe 18 is formed is connected to the valve mechanism 14. The inner front shaft 26 is fixed to the inner shaft front end portion 12a by screwing or the like with a packing 28 interposed at the front end portion of the valve mechanism 14.

  Here, as shown in FIG. 5, the valve mechanism 14 includes a valve seat body 30 and a valve passage 30 on the way of the communication path between the liquid storage space 12 c that stores the application liquid and the application body 16 (and the guide rod body 24). The threaded valve rod 32 moves relative to the axial direction, thereby permitting or stopping the supply of the coating liquid toward the coating body 16.

  The ink introduction pipe 18 is inserted into the cylindrical valve seat body 30 so as to be relatively movable, and the tip of the threaded valve rod body 32 abuts and rotates on the rear end of the ink introduction pipe 18 during the relative movement.

  A spring receiver 34 is provided on the inner periphery of the front end portion 12 a of the inner shaft 12, and a spring 36 is disposed between the inner periphery of the spring receiver 34 and the front portion of the threaded valve rod body 32. Thus, the threaded valve rod 32 is urged forward with respect to the spring receiver 34.

  As shown in FIGS. 5 and 6, a female threaded portion 34 a is formed on the inner periphery of the rear portion of the spring receiver 34. Further, the central portion 34b is formed in a spline shape, and a window portion 34b1 that communicates the inner periphery and the outer periphery is formed. In addition, a step portion 34b2 (inner diameter is smaller than the other) that protrudes inward is formed inside the center portion 34b, and the spring 36 is centered with respect to the spring receiver 34 by the step portion 34b2. ing. Moreover, the inner periphery of the front part 34c is formed in the smooth surface.

As shown in FIGS. 5 and 7, the threaded valve rod body 32 is formed with an elastically deformable piston portion that extends forward on the outer periphery of the front portion 32 a and is in sliding contact with the inner periphery of the front portion 34 c of the spring receiver 34. The coating liquid flows when it is positioned in the window 34b1 of the central portion 34b.
Further, a protrusion is formed as a male screw 32b at the center of the threaded valve stem 32. In addition, a connection portion 32c with the stirring blade 38 is formed at the rear portion. The connection portion 32c is thick and has protrusions for fixing and attaching the stirring blades 38 on both sides.

  In addition, as shown in FIG. 8, the ink introduction tube 18 has a small-diameter hollow shaft extending rearward from a bowl-shaped front end 18a, and a flow hole 18b1 is formed in the rear end 18b. In the state shown in FIGS. 1 and 2A, the flow hole 18 b 1 is closed in sliding contact with the valve seat body 30. As will be described later, when the inner shaft 12 advances from that state, the flow hole 18b1 is opened from the valve seat body 30 and can flow into the inner space of the spring receiver 34 as shown in FIG.

  The liquid storage space 12c of the inner space of the inner shaft 12 is screwed into a stirring blade 38 for stirring the coating liquid, a threaded valve rod body 32 joined to the stirring blade 38, and the threaded valve rod body 32. And the screw part 34a of the spring receiver 34 fixed to the inner shaft 12 is accommodated.

  As shown in FIG. 3, the agitating blade 38 is formed by integrally forming a pair of flat plate-like blade portions 38a and 38a opposite to each other on a thick plate-like base portion 38b.

  The blade portions 38a, 38a draw an arc along the rotation direction when viewed from the front. Further, in the axial direction, the plate member is a long plate member, the tip of which is chamfered into an arc, and the inner peripheral surface thereof is chamfered to be thinned forward. The base portion 38b is formed with a hole 38c that is fixed through the rear end of the threaded valve rod body 32. For example, the rear end of the threaded valve rod body 32 is press-fitted into the hole 38c of the stirring blade 38, and the protrusion of the mounting portion 32c at the rear end is fitted into the hole of the valve rod fixing portion 38c1, or the screw member is inserted. It is united by fixing.

  The inner surface of the rear end of the inner shaft 12 is separated from the threaded valve rod body 32. Even if the coating liquid in the liquid storage space 12c of the inner shaft 12 is highly viscous or has a settling property, the stirring blade 38 can be reliably rotated and stirred.

In addition, the stirring blade 38 is not limited to the embodiment of FIG. 3 and can be variously configured. For example, the stirring blade 38 of the modification 1 shown in FIG. 4 can be comprised. In the first modification, a pair of flat blade portions 38a and 38a are opposed to each other and their rear sides are connected by a thick plate-like base portion 38b, and a hole 38c is formed in the base portion 38b. 3 is the same as that of FIG. 3, but the tips of the blade portions 38a, 38a are not chamfered, are substantially rectangular, and the inner peripheral surface is also flat.
The structure of the stirring blade 38 is not particularly limited as long as the liquid content in the inner shaft 12 can be stirred regardless of the form of the embodiment or the modification.

  As each material of the applicator, the applicator 16 can be a fiber body such as acrylic, nylon, polyester, polyacetal (POM), or the like.

The outer shaft 10 and the inner shaft 12 can be made of polypropylene (PP), polybutylene naphthalate (PBT), nylon (PA), or polyacrylonitrile (PAN). In particular, only the inner shaft 12 can be made of a multilayer structure product in which polypropylene (PP) and ethylene-vinyl alcohol copolymer (EVOH) are combined in addition to a single layer such as polypropylene (PP) and polyethylene (PE). .
The front shaft 22 and the inner front shaft 26 can be made of polybutyl terephthalate (PBT), polypropylene (PP), nylon (PA), or polyacrylonitrile (PAN).
The packing 28 can be made of EPDM, silicone, NBR (nitrile rubber), IIR (polyisobutylene rubber), fluorine, and the seal ring can be made of low density polyethylene (LDPE, LLDPE), high density polyethylene (HDPE), or polypropylene (PP).
High density polyethylene (HDPE), low density polyethylene (LDPE, LLDPE), and polypropylene (PP) can be used for the valve seat body 30 and the threaded valve rod body 32.
Stainless steel (SUS) can be used for the spring 36.

  According to the applicator of the said embodiment, as shown to Fig.2 (a)-(e), the operation state of the stirring blade 38 etc. at the time of knocking the inner shaft 12 is exhibited.

As shown in FIG. 2A, when knocking is not performed, the initial state is 0 °.
When the inner shaft 12 is knocked, the stirring blade 38 is rotated by 90 ° as shown in FIG. In this case, the piston portion of the front portion 32a of the threaded valve rod body 32 is in sliding contact with the front portion 34c of the spring receiver 34, and the atmospheric pressure and the hydraulic pressure increase due to compression in the liquid storage space 12c of the inner shaft 12.

  When knocking further, as shown in FIG. 2 (c), the stirring blade 38 is rotated 180 °.

  Subsequently, when knocking so as to push in, the stirring blade 38 is rotated by 270 ° as shown in FIG. In this case, the piston portion (front portion) of the threaded valve rod body 32 passes through the window portion 34 b 1 of the central portion 34 b of the spring receiver 34, and the coating liquid in the liquid storage space 12 c passes through the ink introduction pipe 18 and the guide rod body 24. It flows into the application body 16. At this time, since the internal pressure of the liquid storage space 12c is increased in the state shown in FIG. 2C, when the piston part (front part 32a) reaches the window part 34b1 of the central part 34b, it flows open. The applied coating liquid is fed from the communication hole 18b1 of the rear end portion 18b of the ink introduction pipe 18 to the application body 16 through the inside of the ink introduction pipe 18 and the guide rod body 24.

When the knock is pushed to near the end, as shown in FIG.
Thereafter, if no knocking force is applied, the stirring member 38 returns 360 ° by the urging force of the spring 36 and returns to the initial state of 0 ° in FIG. When returning to the initial state, the threaded valve rod 32 moves forward relative to the spring receiver 34. During the advancement, the flange portion of the front portion (piston portion) 32a of the threaded valve rod body 32 can be fed into the communication hole 18b1 of the ink introduction tube 18 so that the coating liquid is forcibly discharged.

  As described above, when the inner shaft 12 is knocked, the threaded valve stem 32 is relatively retracted, and at the same time, the threaded portion 34a (female thread) of the spring receiver 34 is screwed onto the male screw 32b of the threaded valve stem 32. Since the operation (screw action) is performed, the threaded valve rod 32 rotates, and the stirring blade 38 rotates. That is, the blade part (fin) 38a of the stirring blade 38 that is press-fitted to the threaded valve rod body 32 can stir the contents.

  According to the applicator of the embodiment, in order to allow the stirring blades 38 to be rotated by a pressing operation from the rear end of the inner shaft instead of a stirring ball, a stirring body that swings a conventional container such as a vertical swing It is not necessary to perform a stirring operation such as back and forth, and can be stirred simultaneously by a knocking operation for dispensing the coating liquid, which is very easy to use. Further, the rotation of the stirring blade 38 can stir the coating liquid more efficiently than when the stirrer is moved back and forth by vertical swinging, and it can efficiently and reliably stir a highly viscous liquid and a liquid having a sedimentation property. It is hard to clog with liquid.

  The applicator of the present invention is not limited to the above-described embodiment, and can be variously modified within the scope of the present invention. Modifications 2 to 4 shown in FIGS. 9 to 11 can be employed for the stirring blade of the present invention. The same code | symbol is attached | subjected to the part similar to the stirring blade of embodiment. The threaded valve stem is fixed to the stirring blade 38 by fitting the projection of the attachment portion 32c at the rear end of the threaded valve rod 32 into the hole of the valve stem fixing portion 38c1, or by inserting a screw member. It is the same as that of the embodiment in that it is integrated by fixing them.

  As shown in FIG. 9, the stirring blade 38 of Modification 2 has rectangular frame-shaped blade portions 38 a, 38 a formed with gap window portions 38 a 1, which are positioned in pairs and facing each other, and the rear sides thereof are thick. A plate-like base portion 38b is integrally formed.

  As shown in FIG. 10, the stirring blade 38 of Modification 3 has fork-like blade portions 38 a and 38 a formed with a front opening gap window portion 38 a 1, which are located in pairs and opposed to each other, and the rear sides thereof. A thick plate-like base 38b is integrally formed.

As shown in FIG. 11, in the stirring blade 38 of the modified example 4, the blades 38a, 38a formed in a plate shape whose front end forms an arc are located opposite to each other, and the rear sides thereof are thick plates. The base 38b is integrally formed.
The stirring blade 38 of the modification 4 is substantially the same as the blade portion shown in FIG. 3, but as shown in FIG. 11, the rear end portion of the blade portions 38a and 38a and the rear end portion of the thick plate-like base portion 38b. The part where and are connected is different. That is, a gap 38b1 is formed between the rear end portions of the blade portions 38a and 38a and the thick plate-like base portion 38b. This gap 38b1 allows a wider area inside the blade portion 38a and enables more efficient stirring than that of FIG. Further, at the time of stirring, the stirring blade 38 is elastically deformed in the shape of a funnel in the direction of the inner peripheral surface of the inner shaft from the base point 38c and rotates while being bent, so that the liquid chamber can be stirred in a wider range.

  The applicator of the present invention can be used for liquid cosmetics, writing instruments, and applicators.

DESCRIPTION OF SYMBOLS 10 Outer shaft 12 Inner shaft 12a Inner shaft front end portion 12b Inner shaft rear end portion 12c Liquid storage space 14 Valve mechanism 16 Application body 18 Ink introduction tube 18a Ink introduction tube tip 18b Ink introduction tube rear end 18b1 Distribution Hole 32 Threaded valve stem 32a Front part of the threaded valve stem (piston part)
32b Male thread 32c of threaded valve stem body Connection portion 34 Spring receiver 34a Spring receiver screw portion 34b Spring receiver central portion 34c Spring receiver front portion 36 Spring 38 Stirring blade 38a Blade portion 38b Base portion 38c Hole

Claims (3)

In the liquid container that feeds the coating liquid by moving the inner shaft forward relative to the outer shaft, the inner shaft that stores the coating liquid in the inner space is located in the outer shaft.
In the inner space of the inner shaft, there are a stirring blade for stirring the coating liquid, a threaded valve rod body joined to the stirring blade, and a screw member screwed to the threaded valve rod body and fixed to the inner shaft. Contain,
An applicator characterized in that the screw member moves forward in accordance with the pressing of the rear end of the inner shaft, and the stirring blade is rotated by the rotation of the threaded valve rod body.   The applicator according to claim 1, wherein the stirring blade is provided with a flat member.   The applicator according to claim 1 or 2, wherein the inner surface of the rear end of the inner shaft and the threaded valve rod body are separated from each other.

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