WO2017026176A1

WO2017026176A1 - Applicator

Info

Publication number: WO2017026176A1
Application number: PCT/JP2016/068678
Authority: WO
Inventors: 堀　英二
Original assignee: 株式会社３Ｓ
Priority date: 2015-08-07
Filing date: 2016-06-23
Publication date: 2017-02-16
Also published as: TW201705878A

Abstract

An air and liquid exchange area EA and a reservoir area RA are provided in a structure for guiding liquid (for example, ink IK) stored in a storage chamber 131 to an applicator body 111 through a relay member 151. The air and liquid exchange area EA suctions and holds the ink IK supplied from the storage chamber 131 using capillary action that is weaker than in the relay member 151, and guides the ink IK to the relay member 151. The reservoir area RA encloses the relay member 151 across a gap (a second gap G2) at a position connected with the air and liquid exchange area EA, and temporarily holds the ink IK pushed out from the storage chamber 131 and through the air and liquid exchange area EA.

Description

Applicator

The present invention is applied to cosmetic tools such as eyeliners, writing instruments such as sign pens and marking pens, stamps, drug application containers, and the like, and stores various liquids such as ink, skin lotion, perfume, and drugs in their raw state. And an applicator that can be applied.

Conventionally, the liquid to be applied to an application object such as paper or human skin is not stored in a state where it is absorbed by an absorbent body (also referred to as an occlusion body) such as batting, but stored in a raw state. An applicator that can be applied as appropriate has been put to practical use. This type of applicator can use a kind of liquid that cannot be stored in a state of being absorbed by the occlusion body, for example, pigment ink, which is a great advantage. The superiority of the pigment-based ink is its good color development. For example, when pigment-based ink is used for the eyeliner, a clear and deep color expression is possible, which brings satisfaction to the user. Of course, not only the eyeliner but also a writing instrument such as a pen can be used to enjoy vivid color by using pigment-based ink.

Patent Documents 1 and 2 each disclose an applicator that stores ink in a raw state and can apply it appropriately.
The applicator described in any document stores ink in a storage chamber formed along the inner peripheral surface of the cylindrical housing, and supplies the stored ink to an application body attached to one end of the housing. And have commonality.
The difference is the structure for guiding ink from the storage chamber to the application body.

The applicator described in Patent Document 1 includes an ink outflow control member 18 (hydrophilic non-woven fabric 20b, ink outflow hole 19, hydrophilic non-woven fabric 20a), superhydrophilic ink flow fiber bundles 8, 12, 16 and hydrophilic. The ink stored in the storage chamber (ink chamber 23) is guided to the application body (pen body 2) through the conductive nonwoven fabric 5 (see the specification [0021], FIG. 1).

The applicator described in Patent Document 2 guides the ink stored in the storage chamber (ink storage unit 1) to the application body (applying body 3) through the ink communication part 4 integrated with the ink storage body 5. (See specification [0015], FIG. 1). As the ink communication part 4 (ink occlusion body 5), a sponge that easily absorbs and discharges ink, or a so-called batting in which polyester, acrylic, and acetate fibers are bundled is used (see the specification [0014]).

One of the problems that must be overcome by an applicator that stores liquid such as ink in a raw state is prevention of leakage and drop from the application body.
For example, if the internal pressure of the storage chamber increases due to an increase in temperature or transmission of body temperature during writing, the liquid overflows from the storage chamber, and the overflowed liquid is excessively sent to the application unit to exceed its holding capacity. , It may leak from the application part. Alternatively, even when an impact is applied to the applicator, the liquid may leak from the storage chamber and be excessively sent to the applicator to leak.
Therefore, in an applicator that stores liquid in a raw state, measures for preventing leakage of the liquid from the application body are required.

In this regard, the two documents introduced earlier describe an invention in which ink overflowing from the storage chamber due to an increase in internal pressure or impact is temporarily retained to prevent leakage of liquid from the application body. Yes.

In the invention described in Patent Document 1, batting 7, 11, 15 is provided around the super-hydrophilic ink flow fiber bundles 8, 12, 16.
Therefore, when irregular ink leakage from the storage chamber (ink chamber 23) due to an increase in internal pressure or impact occurs, the inner cotton 7, 11, 15 absorbs and holds the leaked ink, and the application body (pen body 2). ) To prevent ink leakage (see specification [0023]).

In the case of the invention described in Patent Document 2, the ink occlusion body 5 integrated with the ink communication portion 4 plays a role of absorbing and holding ink overflowing from the storage chamber (ink storage portion 1) (specification). Document [0016]).
The ink occlusion body 5 is set to have a capillary force lower than that of the ink communicating portion 4 and normally suppresses ink absorption. As a result, the ink occluding body 5 functions as a space for absorbing and temporarily holding ink overflowing from the storage chamber in order to keep the ink empty.
Therefore, when an irregular ink leak from the storage chamber due to an increase in internal pressure or an impact occurs, the ink occlusion body 5 absorbs and holds the leaked ink and prevents the ink from leaking from the application body (specification). [0016]).

As described above, according to the inventions described in the above two documents, when the ink overflows from the storage chamber due to an increase in internal pressure or an impact, the leaked ink is absorbed into the absorbent body (filling 7, 11, 15, And it is made to absorb and temporarily hold | maintain to the ink occlusion body 5) of patent document 2. FIG.
For this reason, it becomes necessary to collect the ink temporarily held in the absorber.

In this regard, in the invention described in Patent Document 1, the batting 7, 11, 15 is held by the tapered ink holding members 6, 10, 14, and the reservoir (ink chamber) is more than the application body (pen body 2). 23) The density gradient on the side is set high.
Therefore, when the internal pressure of the storage chamber once increased returns to the original state, the ink held in the batting 7, 11, 15 is drawn to the storage chamber side having a higher density gradient and is collected in the storage chamber. (See the description [0015] to [0016], [0024]).

In the invention described in Patent Document 2, when the internal pressure of the storage chamber once increased returns to the original state, the ink that has been absorbed and held by the ink storage 5 is the ink communication portion having a relatively high density. 4 and is collected in a storage chamber (see specification [0016]).

JP-A-11-020373 JP 2003-226091 A

According to the inventions described in Patent Documents 1 and 2, when ink overflows from the storage chamber due to an increase in internal pressure or impact, the overflowed ink is temporarily held to prevent leakage from the application body. ing. When the internal pressure of the storage chamber once increased returns to the original state, the temporarily held ink is collected in the storage chamber.
In other words, an area for temporarily holding the ink overflowing from the storage chamber (referred to as a reservoir area) is provided, and the temporary holding and recovery of the overflowed ink is well controlled using the strength of capillary action. is doing.

Specifically, in the applicators described in Patent Documents 1 and 2, the reservoir region is configured by an ink occlusion body made of a fiber bundle or a porous material. That is, Patent Document 1 uses the batting 7, 11, and 15 as an ink occlusion body, and Patent Document 2 uses an ink occlusion body that is easy to absorb and discharge ink, such as sponge or polyester, acrylic, and acetate fibers bundled together. In both cases, the reservoir region is formed of batting (see specification [0023] of Patent Document 1 and specification [0014] of Patent Document 2).
However, in these members, the fiber density (filling) and pore diameter (sponge) are not constant depending on the location, and the strength of the capillary action that exerts a suction action on the liquid varies from location to location. There arises a problem that liquid such as ink which is sucked and held easily remains.
Remaining liquid in the reservoir area has the undesirable result of reducing the liquid holding capacity in the reservoir area. In particular, in the case of pigment ink, the pigment separates from the solution over time, so that the solid pigment separated from the solution remains in the reservoir region, and the performance of the ink occlusion body, for example, the above-described liquid holding capacity or liquid There is a possibility that the action force of capillarity on the surface changes.

It is an object of the present invention to provide an applicator that can reliably extract liquid from a reservoir region that temporarily holds liquid overflowing from a storage chamber due to an increase in internal pressure or an impact without leaving the liquid remaining. .

In order to achieve the above-described object, an applicator of the present invention includes a storage chamber that is provided in a housing and stores a liquid, an applicator that sucks the liquid by capillary action and guides it to an application surface, and the applicator. A rod-shaped relay member that guides the liquid to the application body by the action of capillary action with a weaker force, and for gas-liquid exchange facing the liquid stored in the storage chamber from below with the application body facing downward Gas-liquid exchange that opens a gap to surround the relay member, sucks and holds liquid from the storage chamber to the gas-liquid exchange gap by capillary action with a weaker force than the relay member, and guides the liquid to the relay member A gap between the region and the gas-liquid exchange region is opened to surround the relay member, and the liquid pushed out of the storage chamber and passed through the gas-liquid exchange region is weaker than the gas-liquid exchange region. Holds temporarily due to the action of capillary action And observers region, said storage chamber through said reservoir region from the gas-liquid exchange region, characterized in that it comprises an intake passage that communicates with the atmosphere.

In order to achieve the above-described object, the applicator of the present invention includes a storage chamber for storing a liquid, an application body that sucks the liquid by capillary action and guides it to one surface, and a weaker force than the application body. A rod-shaped relay member that guides the liquid to the application body by the action of capillarity, and the liquid stored in the storage chamber with the application body facing downward, are arranged to face from below, and at least two or more N By positioning the relay member at a location, a gap for gas-liquid exchange divided into N parts that causes capillary action with a weaker force than the relay member is opened to surround the relay member, and the storage A gas-liquid exchange region that draws liquid by capillary action from the chamber into the gap for gas-liquid exchange and leads it to the relay member, and a position that communicates with the gas-liquid exchange region and has a weaker force than the gas-liquid exchange region. Undivided to cause capillary action A reservoir region that surrounds the relay member with a gap therebetween and temporarily holds the liquid that has been pushed out of the storage chamber and passed through the gas-liquid exchange region, and the reservoir from the gas-liquid exchange region through the reservoir region And an intake passage that allows the chamber to communicate with the atmosphere.

According to the present invention, since the reservoir region that temporarily holds the liquid leaking from the storage chamber is formed by the gap between the relay member on which capillary action acts, the reservoir region is temporarily held. When the liquid is sucked and extracted, the liquid can be reliably extracted without remaining.

FIG. 1 (a) is a longitudinal front view, FIG. 1 (b) is a cross-sectional view taken along line AA of FIG. 1 (a), and FIG. 1 (c) is an applicator (eyeliner) showing the first embodiment. FIG. 2 is a sectional view taken along line BB in FIG. The longitudinal section front view of the applicator (eye liner) which shows 2nd Embodiment. FIG. 3 (a) is a longitudinal front view, FIG. 3 (b) is a cross-sectional view taken along line AA of FIG. 3 (a), and FIG. 3 (c) is an applicator (eyeliner) showing a third embodiment. FIG. 4 is a cross-sectional view taken along line BB in FIG. The longitudinal section front view of the applicator (eye liner) which shows 4th Embodiment. FIG. 5A is a longitudinal front view and FIG. 5B is a cross-sectional view taken along the line AA of FIG. 5A in an applicator (eyeliner) showing a fifth embodiment. FIG. 6A is a longitudinal front view, and FIG. 6B is a cross-sectional view taken along line AA of FIG. 6A, in an applicator (eyeliner) showing a sixth embodiment. FIG. 7 (a) is a longitudinal front view, FIG. 7 (b) is a cross-sectional view taken along the line AA of FIG. 7 (a), and FIG. 7 (c) is an applicator (eyeliner) showing a seventh embodiment. FIG. 8B is a sectional view taken along line BB in FIG. FIG. 8A is a longitudinal front view, FIG. 8B is a cross-sectional view taken along the line AA of FIG. 8A, and FIG. 8C is an applicator (eyeliner) showing an eighth embodiment. BB sectional drawing of Fig.8 (a). The longitudinal section front view of the applicator (eye liner) which shows 9th Embodiment. The longitudinal front view of the applicator (eye liner) which shows 10th Embodiment. The longitudinal section front view of the applicator (eye liner) which shows 11th Embodiment. FIG. 12A is a vertical front view of a refill, and FIG. 12B is a vertical front view of an applicator loaded with the refill, showing an twelfth embodiment.

Hereinafter, embodiments of the present invention will be described.
In addition, the applicator of the embodiment described below is various application examples of an eyeliner that can store ink as a liquid in a raw state and appropriately apply it to the eyeline.

<< First Embodiment >>
The first embodiment will be described with reference to FIGS. 1 (a) to 1 (c).
As shown in FIG. 1A, an eyeliner 101 according to this embodiment has an application body 111 attached to one end of an elongated cylindrical housing 102, and an opening 102a on the other end side that encloses ink IK is provided as a tail plug. 103 has a closed structure.
The application body 111 is formed by converging and compressing a plurality of fibers, and is formed in a rod shape having a perfect circle in cross section with the longitudinal direction of the fiber bundle as the axial direction. Therefore, capillary action is generated between the individual fibers, and the liquid is moved in the longitudinal direction.
In such an application body 111, the rear end portion is cut off to form a flat connection surface 111a, and the tip end portion is processed into a rounded shape to form an application surface 111b. The application surface 111b plays a role of applying the ink IK onto the eyeline that is human skin. In addition, about the application surface 111b, you may be comprised by the shape of a brush.

An intermediate plug (plug body) 121 is press-fitted into the housing 102 and fixed near the center. Accordingly, the housing 102 includes a storage chamber 131 that stores the ink IK on the rear end side (tail plug 103 side), and a reservoir chamber 141 on the front end side (application body 111 side). The ink IK may be filled by opening the tail plug 103, or when such a releasable tail plug is not provided, the ink IK may be filled from the front opening side on the application body side.

The eyeliner 101 guides the ink IK stored in the storage chamber 131 to the application body 111. As a structure for this purpose, a relay member 151 is provided.
Similar to the application body 111, the relay member 151 is formed by converging and compressing a plurality of fibers, and is formed in a rod shape having a perfect cross section with the longitudinal direction of the fiber bundle as the axial direction. Therefore, capillary action is generated between the individual fibers, and the liquid is moved in the longitudinal direction. Such a relay member 151 has a liquid supply portion 151 a having a sharp rear end side and a flat connection portion 151 b on the front end side.

By dipping the liquid supply portion 151a of the relay member 151 in the ink IK stored in the storage chamber 131 and bringing the connecting portion 151b into contact with the connecting surface 111a of the application body 111, the action of capillary action acting on the relay member 151 is utilized. Then, the ink IK is guided from the storage chamber 131 to the application body 111. In this case, the force on which the capillary phenomenon acts (hereinafter referred to as “capillary force”) is set stronger in the application body 111 than in the relay member 151, whereby the ink IK is transferred from the storage chamber 131 to the relay member. It flows in the direction reaching the application body 111 via 151.

Hereinafter, the structure of each part will be described in more detail.

The housing 102 is, for example, a resin molded product whose tip is formed in a tapered shape, and a holder 112 for attaching the application body 111 is integrally formed at the tapered tip.
The holder 112 includes a cylindrical large-diameter portion 112 a and a small-diameter portion 112 b that are coaxial with the housing 102. The large-diameter portion 112a is disposed closer to the distal end side of the housing 102 than the small-diameter portion 112b, and the application body 111 is fitted in a press-fit state. The small diameter portion 112b fits the relay member 151 in a press-fitted state.
The large-diameter portion 112a and the small-diameter portion 112b are in communication with each other, and the connecting surface 111a of the application body 111 held by the large-diameter portion 112a and the connecting portion 151b of the relay member 151 held by the small-diameter portion 112b are: They can touch each other.

The intermediate plug 121 that bisects the internal space of the housing 102 is, for example, a resin molded product that is formed in a cylindrical shape that press-contacts the inner peripheral surface of the housing 102, and has a through-hole 122 along the axial direction. The through hole 122 is positioned coaxially with the housing 102 in a state where the intermediate plug 121 is press-fitted into the housing 102 and fixed.

As shown in FIG. 1A, the through hole 122 formed in the intermediate plug 121 is formed in a tapered shape, and gradually shrinks from the front end side of the eyeliner 101 where the application body 111 is located toward the rear end side. Diameter (linearly reduced). Therefore, the through hole 122 is formed such that the portion facing the reservoir chamber 141 is the largest and the portion facing the storage chamber 131 is the smallest.
Further, as shown in FIGS. 1B and 1C, the through hole 122 of the present embodiment has a cross-sectional shape formed in a regular hexagonal shape at any portion in the axial direction of the intermediate plug 121. Yes.

Inside the housing 102, the relay member 151 held by the small diameter portion 112b of the holder 112 is held by the intermediate plug 121 in a state where the liquid supply portion 151a side is inserted into the through hole 122. The liquid supply part 151 a passes through the through hole 122 and reaches the storage chamber 131.

The central axis of the holder 112 coincides with the central axis of the housing 102, and the through hole 122 of the intermediate plug 121 is also positioned on the central axis of the housing 102. Therefore, the application body 111 and the relay member 151 mounted in the housing 102 via the holder 112 and the intermediate plug 121 are positioned on the central axis of the housing 102.

Here, the dimensional relationship between the through hole 122 formed in the intermediate plug 121 and the relay member 151 will be described.
The portion of the through-hole 122 having the smallest diameter (the portion in contact with the storage chamber 131) is set to a dimension that allows the relay member 151 to be fitted in a contact state (see FIG. 1B). As described above, the through hole of the present embodiment is formed in a polygonal shape (regular hexagonal shape), and the relay member 151 contacts the six sides of the regular hexagonal shape of the through hole 122, A gap Ga that is divided into six strips is formed between the first gap 122 and the second gap 122.

The portion of the through hole 122 having the largest diameter (the portion in contact with the reservoir chamber 141) is set to a dimension that allows the relay member 151 to be in a non-contact state (see FIG. 1C). For this reason, a single gap Gb is formed between the through hole 122 and the relay member 151 over 360 °.
A gap Ga divided into six strips exists on the storage chamber 131 side, and a single gap Gb exists on the reservoir chamber 141 side. The entire length of the intermediate plug 121 is between the through hole 122 and the relay member 151. A gap G is formed between them. The gap G is divided into six strips at the position facing the storage chamber 131, and is single at the position facing the reservoir chamber 141. Therefore, the gap Ga divided into six strips at the position facing the storage chamber 131 is In the middle of the through hole 122, a single gap is formed and reaches the gap Gb facing the reservoir chamber 141.

The gap G formed between the through hole 122 of the intermediate plug 121 and the relay member 151 is set so as to cause capillary action in the ink IK over the entire length thereof. In this case, the gap Ga divided into six strips has a smaller cross-sectional area than the single gap Gb, and further expands in a tapered shape from the portion facing the storage chamber 131 toward the portion facing the reservoir chamber 141. The closer to the reservoir chamber 141, the weaker the capillary force.

The eyeliner 101 configured as described above forms a gas-liquid exchange area EA on the storage chamber 131 side between the through hole 122 of the intermediate plug 121 and the relay member 151, and from there toward the reservoir chamber 141 side. A reservoir region RA extending in the axial direction is formed. In addition, an intake passage 161 that connects the storage chamber 131 to the atmosphere is formed in the reservoir chamber 141 as described later.

The gas-liquid exchange area EA is a gas-liquid exchange gap G1 (hereinafter referred to as “first gap G1”) for sucking the ink IK supplied from the storage chamber 131 by capillary action with a weaker force than the relay member 151. This is a region that holds and guides the ink IK to the relay member 151. That is, the ink IK is sucked into the gap Ga (first gap G1) facing the storage chamber 131 by the action of capillary action. The ink IK in this portion does not reach the depth of the through hole 122 and is held in the vicinity of the gap Ga.
In the present embodiment, the gap that holds the ink IK by capillary action is called a first gap G1, and the area formed by the first gap G1 is called a gas-liquid exchange area EA. In this case, the gas-liquid exchange area EA of the present embodiment is not an indeterminate shape such as cotton, for example, and the first gap generated between the fixed member whose shape is a resin molded product and the relay member 151 is formed. It is formed by G1.

The reservoir area RA is provided continuously with the gas-liquid exchange area EA, and relays by opening a gap G2 (hereinafter referred to as “second gap G2”) that causes a capillary phenomenon having a weaker force than the first gap G1. This is an area surrounding the member 151.
As described above, the ink IK sucked by the capillary phenomenon from the gap Ga facing the storage chamber 131 remains in the vicinity of the gap Ga and does not reach the depth of the through hole 122 in a normal state. This is because the through-hole 122 is formed in a tapered shape, and the capillary force becomes weaker toward the gap Gb in order to gradually widen the gap G between the through-hole 122 and the relay member 151. In the present embodiment, a gap where the ink IK does not transfer in a normal state is called a second gap G2, and a region formed by the second gap G2 is called a reservoir region RA.

In this case, the reservoir region RA is not an indeterminate shape such as cotton, but is formed by a second gap G <b> 2 that is formed between a regular member having a fixed shape of a resin molded product and the relay member 151. . For example, when the ink IK is pushed out from the storage chamber 131 for some reason (not in a normal state) such as an increase in internal pressure, the reservoir area RA temporarily stores the ink IK pushed out and passed through the gas-liquid exchange area EA. To hold the role.

Accordingly, the eyeliner 101 exhibits capillary action at four locations of the application body 111, the relay member 151, the gas-liquid exchange area EA formed in the gap Ga portion, and the reservoir area RA extending from the gas-liquid exchange area EA to the gap Gb portion. Cause it to occur.
The capillary force in each of these parts is as follows: the capillary force generated in the application body 111 is CP1, the capillary force generated in the relay member 151 is CP2, the capillary force generated in the gas-liquid exchange area EA is CP3, and the capillary force generated in the reservoir area RA. Is CP4,
CP1>CP2>CP3> CP4 Expression 1
It becomes a relationship.
In the reservoir region RA, due to the above-described taper shape, the capillary force gradually becomes weaker as it moves to the reservoir chamber side.

The intake passage 161 will be described.
The storage chamber 131 becomes a negative pressure as the ink IK is consumed in the application body 111. Therefore, a mechanism for supplying air to the storage chamber 131 having a negative pressure is required. For this purpose, an intake passage 161 is provided.

When the ink IK is consumed in the application body 111, first, the ink IK held in the first gap G1 is supplied to the application body 111 via the relay member 151, and the ink held in the gas-liquid exchange area EA. IK disappears. This is because when the liquid moves due to the action of capillary action, the liquid moves from the weakest portion of the capillary force to the strong portion (see Equation 1 above).
In the present embodiment, the phenomenon of the disappearance of the ink IK generated in the gas-liquid exchange area EA is used, and the gas-liquid exchange area EA and the reservoir area RA and the reservoir chamber 141 connected thereto are used as a part of the intake passage 161. To do. The remaining part of the intake passage 161 is formed in the holder 112. That is, the holder 112 is formed with a ventilation groove 113 that creates a gap between the application body 111 and the relay member 151 on a part of the inner wall of the large diameter part 112a and a part of the inner wall of the small diameter part 112b. Yes. As a result, the reservoir chamber 141 is connected from the tip of the holder 112 to the outside, and an intake passage 161 that connects the storage chamber 131 to the atmosphere is formed.

The operation of the eyeliner configured as described above will be described.

The ink IK stored in the storage chamber 131 is sucked by the relay member 151 by the action of capillary action, and is supplied to the application body 111 from the connecting portion 151b that contacts each other via the connecting surface 111a. Since the application body 111 has a stronger capillary force than the relay member 151 (see Equation 1 above), the supplied ink IK is guided to the application surface 111b. At this time, the relay member 151 and the application body 111 are in a state of being impregnated and held with the ink IK.
In this state, the ink IK stored in the storage chamber 131 is also sucked into the gap Ga (first gap G1) between the through hole 122 of the intermediate plug 121 and the relay member 151, and gas-liquid exchange is performed. Fill area EA. Therefore, the intake passage 161 is in a closed state.

On the other hand, when the ink IK is applied by the application body 111, the ink IK in the gas-liquid exchange area EA having the weakest capillary force is transferred toward the application body 111, and the ink IK held in the gas-liquid exchange area EA. Disappears. Then, the intake passage 161 is opened, and an amount of air equal to the applied ink flows into the storage chamber 131, thereby enabling smooth application.
When the consumption of the ink IK in the application body 111 is stopped, the gas-liquid exchange area EA is again filled with the ink IK. By repeating such an action, the ink IK is applied to the eyeline that is the application target.

In the eyeliner in which the ink is stored in a raw state and applied as appropriate as in the present embodiment, prevention of ink leakage from the application body has been a long-standing problem. Such ink leakage occurs due to an increase in internal pressure of the storage chamber for storing ink or an impact applied to the eyeliner.
The eyeliner 101 of this embodiment takes a double prevention measure against such a phenomenon of leakage of the ink IK.

One preventive measure is the retention of the ink IK in the reservoir region RA, and the other is the retention of the ink IK in the reservoir chamber 141.

That is, when the internal pressure of the storage chamber 131 increases due to a temperature rise or a strong impact is applied to the housing 102, the ink IK is pushed out from the storage chamber 131 and flows into the gap G between the through hole 122 and the relay member 151. The ink IK is temporarily held by the reservoir area RA although it tries to flow outside through the gas-liquid exchange area EA. Even if the eyeliner 101 is tilted at any angle, the reservoir region RA maintains the ink IK holding state by the action of capillary action.

In this case, when the ink IK exceeding the capacity of the reservoir region RA flows into the gap G, the ink IK overflows from the reservoir region RA, but the overflowed ink IK flows into the reservoir chamber 141 and is held.
Therefore, according to the present embodiment, when the ink IK is pushed out of the storage chamber 131 due to the internal pressure fluctuation or impact, the ink IK is temporarily held in the reservoir region RA and further in the reservoir chamber 141. As a result, the leakage of the ink IK from the application body 111 can be prevented double.

Incidentally, the ink IK temporarily held in the reservoir area RA and further in the reservoir chamber 141 can be collected. Such recovery of the ink IK will be described.

First, the collection of the ink IK held in the reservoir area RA will be described. The ink IK held in the reservoir area RA is sucked to the gas-liquid exchange area EA side where the capillary force is stronger once the internal pressure of the storage chamber 131 that has once increased returns to the original pressure (see Equation 1 above). Collected in 131. Alternatively, when an application operation is performed on the application body 111, the application body 111 is sucked by the relay member 151 having a higher capillary force (see the above formula 1) and collected by the application body 111.

As a result, the ink IK stored in the reservoir area RA is extracted, and the reservoir area RA returns to the initial state. At this time, the reservoir region RA is formed by a gap G that surrounds the relay member 151. In particular, the reservoir region RA of the present embodiment is formed by an undivided gap G that surrounds the relay member 151. The ink IK does not remain.
The reason will be described below.

The intermediate plug 121 is formed by a fixed member called a resin molded product, whereas the relay member 151 is formed by converging and compressing a plurality of fibers. For this reason, the through hole 122 formed in the intermediate plug 121 has a relatively small manufacturing error, whereas the relay member 151 has a large manufacturing error. Specifically, the size of the manufacturing error of the relay member 151 is about ten times the size of the manufacturing error of the through hole 122.

For this reason, regarding the gaps (the first gap G1 and the second gap G2) between the through hole 122 and the relay member 151, high accuracy cannot be expected.
If the reservoir region RA is also formed in a polygonal cross-section, like the gas-liquid exchange region EA, and the second gap G2 is divided into a plurality of portions (in the reservoir region, the inner surface of the through hole is connected to the relay member at a plurality of locations. Assuming that the second gap is divided into a plurality of parts by abutting), the sectional area of each divided region of the second gap G2 is both in the axial direction of the relay member 151 and in the direction orthogonal to the axis. It will not be constant. As a result, the capillary force in each divided region of the second gap G2 varies.

Then, when gas-liquid exchange is performed, a phenomenon occurs in which the ink IK in the area where the capillary force is weaker disappears first among the individual divided areas of the first gap G1 and the second gap G2 that communicate with each other. . In this case, although the ink IK in the region having a strong capillary force remains in the reservoir region RA, the intake passage 161 is opened in a part of the first gap G1 and the second gap G2, and stored. The introduction of air into the chamber 131 is prompted. As a result, the pressure inside the storage chamber 131 becomes balanced with the atmospheric pressure, and there arises a disadvantage that the ink IK remaining in the reservoir area RA cannot be collected.

On the other hand, in the present embodiment, the second gap G2 that forms the reservoir region RA is formed in a non-divided manner (the inner surface of the through hole does not contact the relay member). There is no problem that the IK cannot be collected.

That is, in the present embodiment, since the second gap G2 forming the reservoir region RA is not divided (the inner surface of the through hole does not contact the relay member), all the ink IK remaining in the reservoir region RA is collected. It becomes possible.

Therefore, according to the present embodiment, inconvenience when the ink IK remains in the reservoir area RA, for example, the retention capacity of the ink IK decreases, or the performance fluctuation such as the fluctuation of the action force of the capillary phenomenon occurs. It can be prevented from occurring in the region RA.

Next, collection of the ink IK held in the reservoir chamber 141 will be described. The ink IK held in the reservoir chamber 141 is collected toward the outlet of the reservoir region RA when the eyeliner 101 is tilted so that the application body 111 faces upward. Then, it is sucked into the reservoir region RA by the action of capillary action.
If the ink IK is sucked into the reservoir region RA, as described above, the ink IK is collected in the storage chamber 131 or the application body 111.

As described above, according to the present embodiment, since the gas-liquid exchange area EA opens the first gap G1 for gas-liquid exchange and surrounds the relay member 151, the strength of the capillary force is stabilized, and the reservoir area RA and The relationship between the strengths of the capillary forces (see the above formula 1) can be kept stable.
Therefore, it is possible to minimize variations among products in the gas-liquid exchange area EA, the reservoir area RA, and the boundary section.

In the gas-liquid exchange area EA, it is preferable that the inner wall of the through hole is in contact with the relay member 151 to position the relay member 151. The inner wall of the through hole of this embodiment has N locations (this embodiment) so as to form a first gap G1 for gas-liquid exchange divided into at least two or more N pieces (six in this embodiment). The relay member 151 is positioned in contact with the relay member 151 at six positions). That is, since the through hole 122 of the present embodiment has a hexagonal shape, it is in contact with the relay member 151 at six locations, and the first gap G1 for gas-liquid exchange is along the circumferential direction. It is divided into six pieces.
Thereby, the magnitude | size of the 1st clearance gap G1 can be determined correctly, and the dispersion | variation in the capillary force of the gas-liquid exchange area | region EA can be reduced as much as possible.

In addition, since the reservoir region RA is formed by expanding the inner surface shape surrounding the relay member 151 in a tapered shape from the gas-liquid exchange region EA side, the through-holes forming the gas-liquid exchange region EA and the reservoir region RA are formed. The shape of 122 can be simplified, and the manufacture thereof can be facilitated.

Next, another embodiment of the present invention will be described.
In the embodiment described below, the same parts as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

<< Second Embodiment >>
As shown in FIG. 2, the eyeliner of the present embodiment has an absorber 142 attached to the reservoir chamber 141 so as to surround the relay member 151.
The absorber 142 is, for example, a batting-like shape made up of a plurality of fibers such as polyester, acrylic, and acetate. The ink IK is sucked by sucking the ink IK by causing capillary action on the gap between the fibers. Hold. The capillary force generated in the absorber 142 is set to be weaker than the capillary force generated in the gas-liquid exchange area EA.

According to such a configuration, when the ink IK exceeding the capacity of the reservoir region RA flows into the gap G and the ink IK overflows from the reservoir region RA and flows out into the reservoir chamber 141, the outflowed ink IK flows into the absorber 142. Absorbed and retained.
Then, the ink IK held by the absorber 142 is sucked by the relay member 151 having a higher capillary force when the application operation is performed by the application body 111 (see the above formula 1), and is supplied to the application body 111. The
Therefore, according to the present embodiment, the unstable state in which the ink IK moves freely inside the reservoir chamber 141 can be eliminated, and the leakage of the ink IK from the application body 111 can be more reliably prevented. be able to.

<< Third Embodiment >>
As shown in FIG. 3A, in the eyeliner of the present embodiment, the intermediate plug 121 is provided with a fixing portion 121a for the housing 102, and a through-hole 122 that forms a gas-liquid exchange area EA and a reservoir area RA. Part 121b. The fixed portion 121a is formed in a large-diameter cylindrical shape so as to be fitted to the inner surface of the housing 102, and the action portion 121b is formed in a small-diameter cylindrical shape that extends toward the reservoir chamber at the central portion of the fixed portion 121a. Is formed.

The fixing part 121 a is arranged on the storage chamber 131 side and constitutes a part of the storage chamber 131. The action part 121b is disposed on the reservoir chamber 141 side, and a through hole 122 is formed therein. That is, the through-hole 122 penetrates the relay member 151 and creates a gap between the through-hole 122 and the relay member 151 as in the above-described embodiment. In this case, the relay member 151 has completely penetrated the through hole 122, and the liquid supply portion 151a at the end on the storage chamber side reaches the storage chamber 131 constituted by the fixed portion 121a.

As shown in FIG. 3B and FIG. 3C, in this embodiment, the through hole 122 is not formed in a tapered shape as in the above-described embodiment, but on the side facing the storage chamber 131. By changing the shape of the side facing the reservoir chamber 141, the strength of the capillary force is generated. That is, the through-hole 122 formed in the action part 121 b is formed in a different shape between a part facing the storage chamber 131 and a part facing the reservoir chamber 141.

Specifically, the cross-sectional shape of the through-hole 122 is a regular octagon (see FIG. 3B) at a portion facing the storage chamber 131, and a regular hexagon at a portion facing the reservoir chamber 141 (FIG. 3). (See (c)). Accordingly, the gap G between the through-hole 122 and the relay member 151 is divided into eight strips (gap Ga) at the position facing the storage chamber 131 (divided into six strips at the position facing the reservoir chamber 141 (gap Gb). ). For this reason, the shape of the through-hole 122 formed in a regular octagon at a position facing the storage chamber 131 is changed to a regular hexagon during the transition to the reservoir chamber side, and the position facing the reservoir / BR> [ Has reached. That is, the gap Ga divided into eight strips at the position facing the storage chamber 131 is reduced to six strips in the middle of the through hole 122 and reaches the six strip gaps Gb facing the reservoir chamber 141.

The gas-liquid exchange area EA and the reservoir area RA formed in the action part 121b as described above will be described.
When the ink IK is sucked into the gap Ga facing the storage chamber 131, the ink IK does not reach the depth of the through hole 122 and remains in the vicinity of the gap Ga. Thus, the gap in which the ink IK stays is the first gap G1, and the gas-liquid exchange area EA is formed in this area. Accordingly, a reservoir region RA (second gap G2) is formed in the gap G in a region other than the first gap G1.

The region where the ink IK sucked from the gap Ga facing the storage chamber 131 does not necessarily depend on the number and shape of the gaps G of eight and six. Therefore, there is no causal relationship between the number and shape of such gaps G and the first gap G1 and the second gap G2.
However, as is clear from FIGS. 3B and 3C, the gap Ga divided into eight strips is narrower than the gap Gb divided into six strips. Therefore, the gap Ga has a stronger capillary force than the gap Gb, and if the capillary force generated in the first gap G1 is compared with the capillary force generated in the second gap G2, the capillary generated in the first gap G1. The force is stronger than the capillary force generated in the second gap G2, and the relationship of the above formula 1 is established.

In such a configuration, the eyeliner 101 of this embodiment also produces the same effects as the eyeliner 101 of the first embodiment.

Further, according to the present embodiment, the reservoir region RA has an X-polygon (an octagon in the present embodiment) as the gas-liquid exchange region EA, whereas each side contacts the relay member 151. It is formed in a polygonal shape of n corners (in this embodiment, a hexagon). Thereby, since the through-hole 122 which forms the gas-liquid exchange area | region EA and the reservoir | reserver area | region RA contacts the relay member 151 over the full length, a clearance gap can be maintained with a sufficient precision and a shape can be simplified, and manufacture is easy. Can be achieved. That is, also in the reservoir region RA, since the through hole 122 contacts the relay member 151 and positions the relay member 151, the size of the second gap G2 can be accurately determined, and the gas-liquid exchange region EA Capillary force variation can be minimized. Further, since both the gas-liquid exchange area EA and the reservoir area RA accurately determine the sizes of the first gap G1 and the second gap G2, the capillary force between the gas-liquid exchange area EA and the reservoir area RA is determined. The balance can be correctly defined, and variations among products can be minimized.

<< Fourth Embodiment >>
As shown in FIG. 4, in the eyeliner of the present embodiment, the absorber 142 is attached in the reservoir chamber 141 so as to surround the relay member 151.
The absorbent body 142 is made of, for example, cotton entangled with a plurality of fibers, and generates a capillary force weaker than that in the gas-liquid exchange area EA.

In such a configuration, when the ink IK exceeding the capacity of the reservoir region RA flows into the gap G and the ink IK overflows from the reservoir region RA and flows out into the reservoir chamber 141, the discharged ink IK is absorbed by the absorber 142. Held.
Then, the ink IK held by the absorber 142 is sucked by the relay member 151 having a higher capillary force when the application operation is performed by the application body 111 (see the above formula 1), and is supplied to the application body 111. The
Therefore, according to the present embodiment, the unstable state in which the ink IK moves freely inside the reservoir chamber 141 can be eliminated, and the leakage of the ink IK from the application body 111 can be more reliably prevented. be able to.

<< Fifth Embodiment >>
As shown in FIG. 5A, in the present embodiment, a gas-liquid exchange area EA is formed in the fixing part 121a of the intermediate plug 121, and a reservoir area RA is formed in the action part 121b. That is, a member entangled with a plurality of fibers, for example, cotton 171 is enclosed in the fixing portion 121a. Since the cotton 171 has a gap Ga between the fibers, a capillary phenomenon occurs in the gap Ga.
Further, as shown in FIG. 5B, the action part 121b of the present embodiment includes a through hole 122 having a perfect circular cross section, and forms a single gap Gb between the relay member 151 and the relay part 151. Yes. Since the through hole 122 is formed in a straight shape having the same cross-sectional shape and size at any position, the cross-sectional shape and size of the gap Gb are constant at any position of the action portion 121b.

The gas-liquid exchange area EA formed in the fixed part 121a and the reservoir area RA formed in the action part 121b will be described.
When the ink IK is sucked into the gap Ga generated by the cotton 171 enclosed in the fixing portion 121a of the intermediate plug 121, the ink IK wraps around the entire area of the cotton 171. Accordingly, the entire area of the cotton 171 is provided with the first gap G1 for gas-liquid exchange, and the gas-liquid exchange area EA is formed in this area.

The gap Gb between the through hole 122 formed in the action part 121b and the relay member 151 generates a capillary force weaker than the gap Ga (first gap G1) generated by the cotton 171 enclosed in the fixing part 121a. Let Therefore, the gap Gb between the through hole 122 and the relay member 151 becomes the second gap G2, and the reservoir area RA is formed in this area.

In such a configuration, the eyeliner 101 of the present embodiment also produces the same effects as the eyeliner 101 of the first and third embodiments.

In addition, according to the present embodiment, the strength of the capillary force generated in the gas-liquid exchange area EA can be freely set according to the degree of compression of the cotton 171. Therefore, the relay member 151 and the gas-liquid shown in the above formula 1 are used. Capillary force relationship between the exchange area EA and the reservoir area RA, i.e.
CP2>CP3> CP4
Can be easily created, and the fine adjustment thereof is also facilitated.

<< Sixth Embodiment >>
As shown in FIGS. 6A and 6B, in the present embodiment, the inner wall of the through hole 122 is formed in a hexagonal cross section in the action portion 121b, and the relay member 151 is held in contact. ing. Accordingly, the relay member 151 contacts the six sides of the regular hexagonal through hole 122, and forms a gap Gb that is divided into six strips between the relay member 151 and the through hole 122.
In addition, since the through-hole 122 is formed in a straight shape having the same cross-sectional shape and size at any position, the cross-sectional shape and size of the gap Gb is constant at any position of the action portion 121b. .

The gap Gb divided into the six strips is also larger than the gap Ga (first gap G1) generated by the cotton 171 sealed in the fixing portion 121a, similarly to the single gap Gb of the fifth embodiment. Generate weak capillary force. Therefore, the gap Gb becomes the second gap G2, and the reservoir area RA is formed in this area.

In such a configuration, the eyeliner 101 of this embodiment also produces the same effects as the eyeliner 101 of the first, third, and fifth embodiments.

In addition, according to the present embodiment, the reservoir region RA has N locations (six locations in the present embodiment) that form the second gap G2 divided into at least two or more N (six in the present embodiment). ), The relay member 151 is contacted at the position and the relay member 151 is positioned, so that the size of the second gap G2 can be accurately determined, and the variation in the capillary force of the gas-liquid exchange area EA is minimized. Can do.

≪Modification≫
The first to sixth embodiments described above can be variously modified and changed.
For example, with respect to one or both of the gas-liquid exchange area EA and the reservoir area RA, the through hole 122 of the intermediate plug 121 is formed in an elliptical cross section, and two places forming the second gap G2 divided into two parts The relay member 151 may be positioned by contacting the relay member 151 at the position. Further, the relay member 151 may be positioned without the inner wall of the through hole 122 contacting.
Furthermore, although the first to sixth embodiments have shown various examples of the eyeliner 101, they can be applied to writing instruments such as sign pens and marking pens, stamps, drug application containers, and the like.

<< Seventh Embodiment >>
As shown in FIG. 7 (a), the through hole 122 provided in the intermediate plug 121 is formed in a straight shape on the side facing the storage chamber 131, and the side facing the reservoir chamber 141 communicating with this portion is tapered. Is formed. That is, the through-hole 122 formed in a straight shape has a constant hole size, whereas the through-hole 122 formed in a taper shape linearly expands toward the reservoir chamber 141. To go. Accordingly, the size of the hole of the through hole 122 is the smallest at the portion facing the storage chamber 131 and the largest at the portion facing the reservoir chamber 141.

As shown in FIG. 7B, the through hole 122 formed in a straight shape has a regular hexagonal cross section. This portion is formed only in the vicinity of the inlet of the through hole 122 facing the storage chamber 131.
Moreover, as shown in FIG.7 (c), the cross section of the through-hole 122 formed in the taper shape is formed in the perfect circle shape. This perfect circular shape is similar to the cross sectional shape of the relay member 151 having a perfect circular cross section.

The straight hexagonal section formed in the straight shape and the circular section in the tapered shape are connected inside the through-hole 122 while maintaining the respective shapes. . As an example, a perfect circular part formed in a tapered shape has a perfect circle with a diameter that is inscribed by a regular hexagonal cross section of the straight part, and this part is formed in a straight shape. I contact the part.

Here, the dimensional relationship between the through hole 122 formed in the intermediate plug 121 and the relay member 151 will be described.
A regular hexagonal section formed in a straight shape of the through hole 122 is set to a dimension that allows the relay member 151 to be fitted in a contact state (see FIG. 7B). Therefore, the relay member 151 contacts the six sides of the regular hexagonal through hole 122 and forms a gap that is divided into six strips between the relay member 151 and the through hole 122. This gap is a gas-liquid exchange gap (first gap G1; gas-liquid exchange area EA).

A portion of the through hole 122 having a tapered cross-sectional shape is set to a dimension in which the relay member 151 is in a non-contact state (see FIG. 7C). For this reason, a non-divided single gap is formed between the through hole 122 and the relay member 151. This gap is a region having a cross-sectional area larger than that of the first gap G1 divided into six strips and causing capillary action with a force weaker than that of the first gap G1, and a gap for the reservoir (second gap G2). A reservoir region RA).
A gap G is formed between the through hole 122 and the relay member 151 over the entire length of the intermediate plug 121, and this gap G is set so as to cause capillary action in the ink IK over the entire length. As described above, the second gap G2 expands in a tabular shape toward the reservoir chamber 141, so that the capillary force decreases as the reservoir chamber 141 is approached.

Also in this embodiment, the same effect as that of the first embodiment can be obtained. Further, since the gas-liquid exchange area EA is formed in a straight shape for a predetermined length, the directionality of the relay member 151 can be stabilized and ink can be stably held in the reservoir area. It becomes.

<< Eighth Embodiment >>
As shown in FIG. 8A, in this embodiment, an intermediate plug 121 having a fixing part 121a and an action part 121b is arranged in the housing 102, as in the third embodiment shown in FIG. Yes. As in the seventh embodiment, the through hole 122 formed in the intermediate plug 121 has a polygonal cross section (regular hexagonal shape) on the storage chamber 131 side and is in contact with the outer periphery of the relay member 151 (FIG. 8B). )), The reservoir chamber 141 side is formed in a non-divided cross-sectional perfect circle shape (see FIG. 8C).

As shown in FIGS. 8B and 8C, in the present embodiment, the through hole 122 is not formed in a tapered shape, and the shape of the side facing the storage chamber 131 and the side facing the reservoir chamber 141 are formed. By changing, the strength of the capillary force is generated. That is, the through-hole 122 formed in the action part 121b is formed in a different shape between the part facing the storage chamber 131 and the part facing the reservoir chamber 141, and the first gap G1 is formed. Only the vicinity of the position facing the storage chamber 131 is used, and the most part of the through hole 122 is a second gap G2.

In such a configuration, since the reservoir region RA is formed by making the through-hole 122 into a perfect circle shape, the shape of the through-hole 122 can be simplified, and the manufacture of the intermediate plug 121 is facilitated. Can be planned.

<< Ninth Embodiment >>
As shown in FIG. 9, in the eyeliner of the present embodiment, an absorber 142 is attached so as to surround the relay member 151 in the reservoir chamber 141 of the eyeliner shown in FIG.
The absorber 142 is, for example, a batting-like shape made up of a plurality of fibers such as polyester, acrylic, and acetate. The ink IK is sucked by sucking the ink IK by causing capillary action on the gap between the fibers. Hold. The capillary force generated in the absorber 142 is set to be weaker than the capillary force generated in the gas-liquid exchange area EA.

According to such a configuration, when the ink IK exceeding the capacity of the reservoir region RA flows into the gap G and the ink IK overflows from the reservoir region RA and flows out into the reservoir chamber 141, the discharged ink IK absorbs for the reservoir. It is absorbed and held by the body 142.
Then, the ink IK held by the absorber 142 is sucked by the relay member 151 having a higher capillary force when the application operation is performed by the application body 111 (see the above formula 1), and is supplied to the application body 111. The
Therefore, according to the present embodiment, the unstable state in which the ink IK moves freely inside the reservoir chamber 141 can be eliminated, and the leakage of the ink IK from the application body 111 can be more reliably prevented. be able to.

<< Tenth Embodiment >>
As shown in FIG. 10, the eyeliner of the present embodiment is obtained by providing a gas-liquid exchange absorber 123 in the eyeliner storage chamber 131 shown in FIG. 7. The absorbent body 123 is fixed to the entire end face of the intermediate plug 121 facing the storage chamber 131, and is configured as, for example, a batting-like shape formed from a plurality of fibers such as polyester, acrylic, and acetate. The absorber 123 causes the capillary phenomenon to act on the gap between the fibers to suck the ink IK, and holds the sucked ink IK. The capillary force generated in the absorber 123 is set to be equal to or stronger than the capillary force generated in the first gap G1, which is a gas-liquid exchange gap.

The liquid supply portion 151a at the rear end portion of the relay member 151 is inserted into the absorber 123, and the relay member 151 sucks the ink IK stored in the absorber 123 from the liquid supply portion 151a. Guide to the application body 111.

The eyeliner 101 having such a configuration also produces the same effects as the eyeliner 101 of the seventh embodiment. Further, according to the present embodiment, for example, when the internal pressure of the storage chamber 131 increases and the ink IK is once held in the reservoir chamber 141, and then the internal pressure of the storage chamber 131 decreases and returns to the original state, the gas-liquid exchange area EA The possibility that the ink IK may remain in the reservoir region RA due to a dimensional error that may occur in the first gap G1 can be eliminated.

That is, since the first gap G1 is divided into a plurality of strips, specifically, six strips, the cross-sectional area of each of the first gaps G1 divided into six strips is determined by the manufacturing error of the relay member 151. There is a possibility that both the axial direction and the direction perpendicular to the axis will not be constant. In this case, the capillary force varies in each divided region of the first gap G1.
Then, when gas-liquid exchange is performed in the gas-liquid exchange area EA, a phenomenon occurs in which the ink IK in the area where the capillary force is weak among the individual divided areas of the first gap G1 disappears first. When such a phenomenon occurs, the intake passage 161 is opened in a part of the first gap G1 and the second gap G2 even though the ink IK remains slightly in the reservoir region RA, and is stored. The introduction of air into the chamber 131 may be prompted. In this case, the pressure inside the storage chamber 131 becomes balanced with the atmospheric pressure, and there is a possibility that the ink IK remaining in the reservoir area RA becomes uncollectable.

According to the present embodiment, since the ink IK held in the first gap G1 is absorbed by the gas-liquid exchange absorber 123, the ink IK in each divided region from the first gap G1 is stored. When recovered in the chamber 131, the slow speed generated in the recovery speed is leveled as much as possible. Accordingly, it is possible to eliminate the inconvenience that the ink IK remaining in the reservoir area RA cannot be collected.

<< Eleventh Embodiment >>
As shown in FIG. 11, in this embodiment, an absorber holder 124 is provided on the end surface of the intermediate plug 121 facing the storage chamber 131, and the absorber 123 for gas-liquid exchange is stored and held in the absorber holder 124. I am letting. The absorber holder 124 may be fixed separately from the intermediate plug 121 to the intermediate plug 121, or may be formed integrally with the intermediate plug 121. The absorber holder 124 is formed with a hole for allowing the relay member 151 to pass therethrough. This hole may be formed as a part of the first gap G1, or may be formed in a larger diameter and filled with the absorber 123.

In such a configuration, the eyeliner 101 of this embodiment also produces the same effects as the eyeliner 101 of the seventh embodiment. Further, according to the present embodiment, the strength of the capillary force generated in the absorber 123 can be easily set by adjusting the amount of the gas-liquid exchange absorber 123 housed in the intermediate plug 121.

<< Twelfth Embodiment >>
As shown in FIGS. 12A and 12B, the eyeliner 101 according to the present embodiment has a storage chamber 131, a relay member 151, and an air gap with respect to the housing 102 including the application body 111 and the reservoir chamber 141. A refill 171 including a liquid exchange area EA and a reservoir area RA is detachable (FIG. 12A shows a refill, and FIG. 12B shows an eyeliner incorporating the refill).

The refill 171 includes a cylindrical cartridge case 172 that is open at one end and closed at the other end, and the opening 173 of the cartridge case 172 is sealed with an intermediate plug 121. A relay member 151 is attached to the intermediate plug 121 as in the above-described embodiment. Accordingly, a gas-liquid exchange area EA and a reservoir area RA are formed between the through hole 122 of the intermediate plug 121 and the relay member 151. A storage chamber 131 is formed inside the cartridge case 172 sealed with the intermediate plug 121, and the storage chamber 131 is filled with ink IK.

The housing 102 holds the application body 111 by an ink holding body 181 disposed in the reservoir chamber 141. The ink holding member 181 of this embodiment functions as a reservoir storage member in which a plurality of disk-shaped members 182 formed in a disk shape are stacked in the axial direction. An ink holding slit 183 for holding the ink IK is formed therebetween.

Although not clearly shown in the figure, the ink holder 181 forms an ink guide slit (not shown) that communicates with each ink holding slit 183. The ink guide slit communicates with the reservoir chamber 141 and the application body 111. Therefore, when the ink IK leaks into the reservoir chamber 141, the ink holder 181 sucks and holds the ink IK from the ink guide slit to the ink holding slit 183 by the action of capillary action. According to the amount of ink IK at this time, the ink IK is sequentially sucked into a plurality of ink holding slits 183.

In addition, the ink holder 181 is also formed with an air passage (not shown) for connecting the storage chamber 131 to the atmosphere via the reservoir chamber 141, the reservoir region RA, and the gas-liquid exchange region EA. As a result, an intake passage 161 is formed.

The housing 102 has a refill 171 detachable from its opening 102a. In order to position the refill 171 that has been inserted into the housing 102 and has reached a predetermined position at that position, the housing 102 has a stopper 102b on its inner wall. The position at which the refill 171 is inserted through the opening 102a and blocked by the stopper 102b is the prescribed position of the refill 171. Further, the refill 171 forms an abutting portion 174 that is thickened and reinforced in strength at a position in contact with the stopper 102b.

The refill 171 positioned at a predetermined position connects the connecting portion 151 b formed on the front end surface of the relay member 151 to the connecting surface 111 a formed on the rear end surface of the application body 111. At this time, the connecting portion 151b of the relay member 151 is formed in a concave shape, and the connecting surface 111a of the application body 111 is formed in a convex shape, so that the adhesion of the connecting portion 151b to the connecting surface 111a is improved, and more Secure connection is made. In addition, the refill 171 positioned at a predetermined position causes the rear end portion of the refill 171 to protrude from the opening 102a of the housing 102 and be exposed to the outside. Therefore, by removing the exposed portion, the refill 171 can be attached to and detached from the housing 102.
Further, the tail plug 103 for sealing the opening 102a of the housing 102 is formed so as to cover the rear end portion of the refill 171 protruding from the opening 102a.

In such a configuration, the eyeliner 101 of the present embodiment also produces the same effects as the eyeliner 101 of the seventh embodiment. Further, according to the present embodiment, the refill 171 can be replaced with respect to the housing 102.
Therefore, when the ink IK sealed in the refill 171 is consumed, the eyeliner 101 can be used for a long time by removing the refill 171 mounted so far and mounting the refill 171 sufficiently filled with the ink IK. It becomes possible to do.

≪Modification≫
Various modifications and changes can be made to the seventh to twelfth embodiments described above.
For example, in the gas-liquid exchange area EA, the through hole 122 of the intermediate plug 121 is formed in an elliptical cross section, and the relay member 151 is positioned at two positions that form the first gap G1 divided into two. It may be.
In addition, the elements of each embodiment can be applied to other embodiments. For example, in the eyeliner 101 of the seventh and eighth embodiments, the absorber 142 as shown in the ninth embodiment may be arranged in the reservoir region RA.

In the eyeliner 101 of the seventh to eleventh embodiments, the ink holder 181 as shown in the twelfth embodiment may be installed as an occlusion body.
In the eyeliner 101 of the seventh to eleventh embodiments, the structure of the refill 171 as shown in the twelfth embodiment can be applied. Regarding the refill, the refill described in the seventh to eleventh embodiments as the eyeliner 101 can be used instead of the form of the refill 171 shown in the twelfth embodiment. In this case, the refill described as the eyeliner 101 in the seventh to eleventh embodiments is detachable from a cylindrical outer case (not shown) prepared in advance.

In the twelfth embodiment, the relay member 151 and the application body 111 are connected in direct contact with each other, but may be configured to communicate indirectly. For example, the application body 111 and a part of the relay member 151 may be attached in advance to the housing 102 side, and the relay member 151 attached to the refill 171 may be brought into contact with a part of the relay member 151.

In the seventh to twelfth embodiments, various examples of the eyeliner 101 have been described. However, the eyeliner 101 may be applied to a writing instrument such as a sign pen and a marking pen, a stamp, and a medicine application container.

102 Housing 102a Opening 111 Applicator 121 Intermediate Plug 123 Occlusion Body 124 for Gas-Liquid Exchange Occlusion Body Holder 131 Reservoir Chamber 141 Reservoir Chamber 142 Absorber 151 Relay Member 171 Refill 172 Cartridge Case IK Ink (Liquid)
G1 1st gap (gap for gas-liquid exchange)
G2 Second gap (undivided gap)
EA Gas-liquid exchange area RA reservoir area

Claims

A storage chamber provided in the housing for storing liquid;
An application body that sucks the liquid by capillary action and guides it to the application surface;
A rod-shaped relay member that guides liquid to the application body by the action of capillary action with a weaker force than the application body;
A gap for gas-liquid exchange facing from below is opened in the liquid stored in the storage chamber with the application body facing downward to surround the relay member, and from the storage chamber to the gap for gas-liquid exchange A gas-liquid exchange region that sucks and holds the liquid by capillary action with a weaker force than the relay member, and guides the liquid to the relay member;
Capillary phenomenon with a weaker force than the gas-liquid exchange area for the liquid that is pushed out of the storage chamber and passes through the gas-liquid exchange area by opening a gap at a position continuous with the gas-liquid exchange area A reservoir area that is temporarily held by the action of
An intake passage for communicating the storage chamber with the atmosphere from the gas-liquid exchange region through the reservoir region;
An applicator characterized by comprising:
The gas-liquid exchange region and the reservoir region are provided between an inner wall of a through hole formed in a plug attached to the housing and a relay member,
The inner wall of the through hole constituting the gas-liquid exchange region contacts the relay member at at least two positions so as to form a gap for gas-liquid exchange divided into at least two parts, and the relay Positioning the member,
The applicator according to claim 1.
The through hole constituting the gas-liquid exchange region is formed in a polygonal cross-sectional shape so that each side contacts the relay member.
The applicator according to claim 2.
The reservoir region has a shape of a through hole that surrounds the relay member expanded in a tapered shape from the gas-liquid exchange region side.
The applicator according to claim 2.
The reservoir region has a polygonal shape less than X with respect to the relay member and contacts the relay member when the gas-liquid exchange region has an X-angle polygonal shape.
The applicator according to claim 3.
A reservoir chamber for storing liquid leaking from the reservoir region;
The applicator according to claim 1.
An absorber that contacts the relay member in the reservoir chamber and holds the liquid by the action of capillary action with a weaker force than the gas-liquid exchange region;
The applicator according to claim 6.
The housing is configured in a cylindrical shape that holds the application body on the front end side and has an openable and closable opening on the rear end side,
A refill that includes the storage chamber, the relay member, the gas-liquid exchange region, and the reservoir region, is detachable from the housing, and connects the relay member to the application body in a state of being attached to the housing. The applicator according to claim 1, further comprising:
The refill is
A cylindrical cartridge case that is open at one end and closed at the other end;
The relay member is penetrated in the axial direction, the gas-liquid exchange region and the reservoir region are formed between the relay member and the reservoir chamber in which the liquid is sealed is formed on the gas-liquid exchange region side. An intermediate stopper fixed inside the cartridge case,
The applicator according to claim 8, further comprising:
A storage chamber for storing liquid;
An applied body for sucking the liquid by capillary action and guiding it to one side;
A rod-shaped relay member that guides liquid to the application body by the action of capillary action with a weaker force than the application body;
With the application body facing downward, the liquid stored in the storage chamber is arranged to face from below, and by positioning the relay member at at least two N positions, the relay member is more than this relay member. An N-divided gap for gas-liquid exchange that causes capillary action with weak force is opened to surround the relay member, and liquid is sucked from the storage chamber into the gap for gas-liquid exchange by capillary action. A gas-liquid exchange region leading to the relay member;
At a position communicating with the gas-liquid exchange region, an undivided gap that causes capillary action with a weaker force than the gas-liquid exchange region is opened to surround the relay member, and the gas-liquid is pushed out of the storage chamber A reservoir region that temporarily holds liquid that has passed through the exchange region;
An intake passage for communicating the storage chamber with the atmosphere from the gas-liquid exchange region through the reservoir region;
An applicator characterized by comprising: