JP3581948B2 - Liquid container that dislikes moisture - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a container for accommodating a liquid that dislikes water, such as an α-cyanoacrylate adhesive, which solidifies when absorbed in water and becomes unusable.
[0002]
[Prior art]
For example, an α-cyanoacrylate adhesive, which is widely known as an instant adhesive, is a liquid adhesive that quickly cures due to a small amount of moisture in the air, so that the α-cyanoacrylate adhesive is housed and sealed. A so-called double container comprising an inner container capable of carrying a solid desiccant therein and an outer container for accommodating and sealing the inner container, in the outer container constituting the double container There is known a means for holding a solid desiccant in the inner container, capturing moisture (moisture) in the outer container containing the inner container, and preventing the α-cyanoacrylate adhesive in the inner container from being altered and cured.
[0003]
On the other hand, in order to reduce the permeation of moisture from the outside, a container body capable of forming a thick peripheral wall and containing an adhesive therein, and a needle valve provided on the container body for liquid injection are provided. Using a pen-type container formed with a cap that covers the part, a solid desiccant is attached to the inner part of the cap, and the adhesive leaking from the tip of the needle valve removes the moisture inside the cap covered by the cap. A method of preventing the resin from being cured by touching is widely used.
[0004]
Most of the desiccants used in such liquid containers that dislike moisture absorb a moisture in the air, so that a silica-alumina-based adsorbent or the like is molded into a disk of a predetermined size, and the tablet is dried. The agent is held in a predetermined portion formed in the container body or the cap. For example, in order to hold the desiccant in the cap, the opening side of the bottomed cylindrical holding portion formed in the cap is used. In addition, a plurality of locking projections or locking ridges are provided at equal intervals, and the solid desiccant is forced over the projections or ridges and is held in the holding portion inside.
[0005]
[Problems to be solved by the invention]
When the silica-alumina-based adsorbent and the like are molded into a disc of a predetermined size to form a desiccant, the raw material is molded into a disc of a predetermined size, and then placed in a furnace and dried at a high temperature. Variations (dimension tolerances) are likely to occur in the size of the obtained desiccant even if careful attention is paid to production.
As a result, when the obtained desiccant is mounted in the holding portion of the cap or the container main body, the desiccant having a large size is difficult to insert into the holding portion, and the desiccant may be cracked when pressed with a strong pressing force, When broken, there was a problem of falling off from the holding portion.
[0006]
In addition, small-sized ones may fall out of the holding part, and if the desiccant does not notice that it has slipped out of the holding part, the storage performance of the liquid will be significantly reduced.
In particular, the smaller the desiccant, the smaller the locking projections or ridges of the holding portion, and the greater the possibility of falling off.
[0007]
In view of the present situation in holding a desiccant in a liquid container that dislikes moisture, the present invention reliably retains a desiccant within a predetermined dimensional tolerance even if there is variation in the dimensions of the desiccant. It is an object of the present invention to provide a liquid container that dislikes moisture and can be held in the unit.
[0008]
[Means to solve the problem]
To achieve the above object, the invention described in claim 1 of the present invention
At least one of the container body and the cap, a bottomed cylindrical holding portion for holding a solid desiccant is formed,
And forming are opposed at least two projections on the inner peripheral surface of the opening side of the holding portion, the inner peripheral surface of the rib ridges in the axial direction towards the bottom of the holding portion from the projection of any one location A liquid container which dislikes moisture, characterized in that it is formed as follows.
[0009]
The invention described in claim 2 of the present invention
At least one of the container body and the cap, a bottomed cylindrical holding portion for holding a solid desiccant is formed,
At least two protrusions are formed on the inner peripheral surface on the opening side of the holding portion so as to face each other , and a rib formed of one protrusion in the axial direction from any one of the protrusions toward the bottom of the holding portion. While forming on the inner peripheral surface ,
The inner peripheral position of the approximate 90 ° angle with respect to said ribs, a liquid container that dislikes moisture you characterized in that a rib consisting of a single ridge in the axial direction.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The liquid container which dislikes moisture of the present invention contains a liquid which dislikes moisture (including a jelly-like liquid) such as an α-cyanoacrylate-based adhesive, and a solid container for preventing the liquid from being deteriorated by moisture. A container provided with a desiccant, wherein the liquid container includes a container capable of storing a liquid that dislikes moisture, an inner container body having a nozzle for discharging the liquid, and A so-called double container consisting of an outer container that houses and hermetically seals the container body, or a container body that has a liquid discharge section such as a nozzle section for discharging liquid and a needle valve mechanism at the tip, and these nozzle section and liquid discharge section And a so-called single liquid container comprising a cap capable of covering the liquid.
[0011]
The desiccant holding portion in the liquid container that dislikes moisture is provided in at least one of the container body and the cap so that the contained liquid that dislikes moisture does not deteriorate due to moisture. Is the inside of the outer container, and in the case of a single container, the inner back portion of the cap or the like is used as the holding portion.
[0012]
The holding portion for holding the desiccant has at least two projections protruding from the inner peripheral surface on the opening side thereof, and these projections can be used even if the solid desiccant is forcibly fitted into the holding portion. It is desirable that the desiccant is not crushed by the desiccant, and that the desiccant does not separate from the holding part beyond the protrusion after the desiccant is inserted into the holding part. It is preferable that the shape is relatively gentle, such as a chevron or a trapezoid.
[0013]
At least two protrusions are formed on the inner peripheral surface on the opening side of the holding portion. The number of protrusions may be three or more. If the number of protrusions is three or more, resistance to press-fitting of the desiccant into the holding portion is reduced. To increase. It is preferable that one of the holding portions is provided at a position on the opening side of the holding portion facing the inner peripheral surface.
[0014]
On the other hand, the ribs formed in the holding portion are preferably formed such that when the desiccant is fitted into the holding portion, the ribs are relatively easily crushed in contact with the desiccant. It is desirable that the rib is a longitudinal rib having an elongated ridge with a narrow width.
[0015]
This rib is intended to relatively crushing as described above is made of easy ridge, from said protrusion of any one location of the protrusions, it provided one axially towards the bottom of the holder only enough Although it is possible to exert the effect, in the case of using a desiccant having a small diameter, by providing another rib at an inner peripheral position at an angle of about 90 ° to the rib, This is preferable because a small desiccant can be held more reliably.
[0016]
The solid desiccant to be attached to the holding part is a silica-alumina-based adsorbent or the like molded into a disk of a predetermined size, but in addition, silica gel, zeolite, or the like is shaped into a disk. The material is not particularly limited as long as it can absorb moisture in the air sufficiently.
[0017]
[Action]
The liquid container which dislikes water according to the present invention has a structure in which a solid desiccant is contained and held in a holding portion formed in at least one of the container main body and the cap, and at least 2 Since one rib was formed and a rib was formed in the axial direction from any one of the protrusions toward the bottom of the holding portion, the solid desiccant pressed into the holding portion crushed the rib by its diameter. Or, since the ribs are urged to one side by the ribs that do not collapse, the desiccant does not come off the holding portion.
[0018]
【Example】
Hereinafter, embodiments of the liquid container which dislikes water according to the present invention will be specifically described with reference to the accompanying drawings.
FIG. 1 is a liquid container that dislikes moisture for accommodating an α-cyanoacrylate adhesive known as an instantaneous adhesive, and the liquid container 1 that dislikes moisture contains an α-cyanoacrylate adhesive. A polyethylene container main body 2 having an adhesive container 3 capable of being accommodated, a nozzle unit 4 for communicating with the adhesive container 3 and discharging an α-cyanoacrylate adhesive, and the container main unit And a cap 6 made of polypropylene or polyethylene for covering the second nozzle portion 4.
[0019]
The container main body 2 has an elongated bottomed cylindrical portion as a storage portion 3 for an α-cyanoacrylate-based adhesive, and a nozzle portion 4 provided with a needle valve mechanism inserted into an upper end opening thereof. The needle 5 is made to protrude from the tip opening of the part 4 to the tip, and the needle 5 is constantly urged to the tip side by a built-in spring to close the tip opening of the nozzle part 4 and resist the urging force of the spring. The valve is opened by pressing the needle 5 toward the adhesive accommodating portion 3, and the α-cyanoacrylate adhesive is dropped on a required portion along the needle 5.
[0020]
On the other hand, the cap 6 includes a cap body 7 covering the nozzle portion 4 and an inverted bottomed cylindrical holding portion 8 having an inner diameter of 5.85 mmφ fixed inside the cap body 7. The inner part of the holding part 8 is a mounting part 10 for holding the desiccant A, and is integrated with the cap body 7 by radially arranged mounting pieces 9 provided on the inner periphery of the cap body 7. Fixed.
[0021]
The desiccant A to be used is a silica-alumina-based adsorbent which is formed into a disk having a predetermined thickness so as to have a diameter within a range of dimensional tolerance of 5.75 ± 0.1 mm. The diameter is 5.85 mmφ, the minimum diameter is 5.65 mmφ, and any variation in diameter is allowed between them.
[0022]
As is clear from FIGS. 2 and 3, the desiccant A in the holding portion 8 has two mountain-shaped maximum heights of 0.10 mm on the inner peripheral surface of the mounting portion 10 on the opening side. The protrusions 11a and 11b are formed opposite to each other, and a rib 12a formed of a narrow ridge having a maximum height of 0.20 mm from one of the protrusions 11a toward the bottom of the holding portion 8 is provided. Ribs 12b are formed in the axial direction at an inner peripheral position at an angle of about 90 ° with respect to 12a.
[0023]
Since each of the protrusions 11a and 11b has a shape that is bulged in a gentle mountain shape in the axial direction, when the hard desiccant A is forcibly fitted into the mounting portion 10, it passes without being crushed. Since each of 12b is formed by a narrow ridge, when desiccant A is fitted into holding portion 8, it is relatively easily crushed by strong contact with desiccant A.
[0024]
For example, when attaching a desiccant A-1 having a diameter of 5.85 mmφ, which is the largest diameter in the allowable range, to the holding portion 8 of the cap 6 having such a structure, the desiccant A-1 includes the protrusions 11a and the protrusions 11a. 11b is forcibly passed through the entrance of the holding portion 8 formed therein and fitted into the mounting portion 10, and the ribs 12a and 12b formed in the holding portion 8 are crushed and held in the mounting portion 10. .
[0025]
At this time, by crushing the ribs 12a and 12b, the desiccant A-1 is pinched by the crushed mutual ribs, and is securely fixed in the mounting portion 10 without play. The protrusions 11a and 11b that are not crushed prevent the desiccant A-1 from coming off, and are held without falling out of the mounting portion 10.
[0026]
Further, for example, when the desiccant A-2 having a minimum diameter of 5.65 mmφ in the allowable range described above is mounted in the holding unit 8, the desiccant A-2 is, as shown in FIGS. It passes through the entrance of the holding portion 8 provided with the protrusions 11a and 11b, fits into the mounting portion 10, and is held in the mounting portion 10.
[0027]
However, since the desiccant A-2 has a small diameter of 5.65 mmφ, it does not crush the ribs 12a and 12b but simply contacts the ribs 12a and 12b. , The desiccant A-2 contacts the two ribs and moves eccentrically in an oblique direction, contacts the holding portion 8 in a wide range and does not play in the mounting portion 10. The protrusions 11b that are securely held at the same time and are not crushed at the same time prevent the desiccant A-2 from coming off and are held without falling out of the mounting portion 10.
[0028]
The ribs 12b are not necessarily required. By forming only the ribs 12a at the same inner circumferential position as the protrusions 11a, the desiccant A-2 having a small diameter of 5.65 mmφ comes into contact with the ribs 12a. The eccentrically-moving member moves eccentrically to the inner surface side of the holding portion 8, that is, the inner peripheral surface side of the holding portion 8 provided with the projection 11 b, and is held in contact with the inner surface. Due to this eccentric movement, a portion of the desiccant A-2 goes under the protrusion 11b, so that the desiccant A-2 does not fall out of the mounting portion 10.
[0029]
【The invention's effect】
The container for a liquid that dislikes moisture according to the present invention forms a holding part for holding a solid desiccant on at least one side of a container body or a cap that constitutes the container for a liquid that dislikes moisture, and the holding part at least two one position of the protrusion is formed relative to the inner peripheral surface of the opening side of the, so to form a collapsible rib axially towards the bottom of the holding portion, not attached to the holding portion Even if the size of the solid desiccant varies, the solid desiccant can be reliably held in the holding portion if the variation is within an allowable tolerance.
[0030]
In particular, the ribs formed in the axial direction on the inner peripheral surface between the bottom of the holding portion and the projections are pressed when the desiccant is pressed into the holding portion when the solid desiccant is minimum within the tolerance range. crush not, if the desiccant is maximum within the tolerance range, in either case is simultaneously collapsed pressed with the desiccant to ensure that the retaining portion of the drying agent having high very practical in terms that can be retained It is.
[0031]
Further, by arranging the other ribs at an angle of about 90 ° with respect to the ribs, the desiccant moves eccentrically in an oblique direction in contact with the two ribs, so that the inner surface of the holding section is twisted. A more secure contact can be achieved with a wide range of contact.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing one embodiment of a liquid container which dislikes moisture according to the present invention.
FIG. 2 is a longitudinal sectional view of a cap showing a state in which a large-diameter desiccant is attached.
FIG. 3 is a sectional view taken along a line II in FIG. 2;
FIG. 4 is a longitudinal sectional view of a cap showing a state in which a desiccant having a small diameter is attached.
FIG. 5 is a cross-sectional view of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Liquid container which dislikes water 2 Container main body 3 Adhesive accommodating part 4 Nozzle part 5 Needle 6 Cap 7 Cap main body 8 Holding part 9 Mounting piece 10 Mounting part 11a, 11b of desiccant Projection 12a, 12b Rib A Desiccant

Claims (3)

Form a bottomed cylindrical holding portion for holding a solid desiccant in at least one of the container body and the cap,
And forming are opposed at least two projections on the inner peripheral surface of the opening side of the holding portion, a protrusion of any one location, the inner circumferential ribs ridges axially towards the bottom of the holding portion A liquid container that dislikes moisture, which is formed on a surface. At least one of the container body and the cap, a bottomed cylindrical holding portion for holding a solid desiccant is formed,
It is opposed to at least two projections on the inner peripheral surface of the opening side of the holding portion formed, a protrusion of any one location, the rib comprising a single ridge in the axial direction towards the bottom of the holder While forming on the inner peripheral surface,
Approximate angle on the inner peripheral position of 90 °, a liquid container that dislikes moisture you characterized in that a rib consisting of a single ridge in the axial direction with respect to the rib. The rib is
The liquid container which dislikes water according to claim 1 or 2, which can be crushed by press-fitting a desiccant.

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