JPH09142497A - Spout and storage body using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mount an elastic body for preventing stored material from flowing out and to easily insert a suction needle without damage to the needle. SOLUTION: A spout comprises a spout body 11 secured to a storage body and having a liquid passage 16 and an inner space 18, an elastic body 41 which is sealed in the space 18 and in contact with the end of the passage 16 and through which a feed and suction means can pass and which prevents material stored therein from leaking even if the means passes through the body 41 or after the means is removed from the body 41, and a crown body 20 which is put on the body 11 to seal the body 41 in the space 18 of the body 11. Therefore, the crown body 20 includes a means 28a for engagement with the body 11, a press part 22 for pressing the body 41 against the body 11, and an escape hole 22a which is provided in the part 22 to allow the feed and suction means to pass therethrough to insert the means into the passage 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spout and a container using the spout, which are mounted so as to close an opening of a container for liquid, and are used for injecting and sucking out an object contained in the container. Regarding

[0002]

2. Description of the Related Art A spout of this type that has been conventionally used is heat-sealed in an opening of a container made of a relatively flexible material such as a synthetic resin sheet, and is housed in this container. It is used for sucking out, preventing outflow and resealing after sucking. This spout is molded with a synthetic resin or the like, and the inside of its mouth is filled with spherical or cylindrical rubber for preventing the outflow of stored items, and its mouth is made of aluminum sheet or the like. The thin film is adhered, and when actually used, the needle for suction is inserted from above the aluminum sheet adhered to the mouth so as to penetrate through the rubber inside to adsorb the contents.

In order to reliably prevent the outflow of the contents to the outside when the contents are taken out or after the inserted needle is pulled out, the rubber is directed toward the central region of the rubber into which the needle is inserted. It must have a fairly strong pressing force. Because, if this pressing force is weak, a gap will be created between the inserted needle and rubber, or after the needle is pulled out, the trace of the needle will remain as it is and a passage will be created, causing leakage of contents. It is easy to put out.

For this reason, in the conventional spout, in order to prevent the contents from flowing out, a rubber having a diameter larger than the diameter of the mouth portion is enclosed to give a strong pressing force to the rubber itself. However, encapsulating rubber having a diameter larger than the diameter of the mouth is a difficult task, and a special machine must be used. Moreover, in that case, it is necessary to apply a lubricant to the surface of the rubber to improve the sliding property, and a complicated manufacturing process such as cleaning the spout after encapsulating the rubber is required.

To solve this problem, Japanese Patent Application No. 5-3367
A measure is proposed in Japanese Patent No. 47. Fig. 7 is Japanese Patent Application No. 5
It is a partially expanded sectional view of a spout proposed by No. 336747. In the figure, reference numeral 71 is a spout body portion, 72 is a flange portion of the spout body portion 71, 76 is a liquid path of the contained material, 77 is a mouth portion of the spout body portion 71, and 77a is a lock provided on the lower surface of the mouth portion 77. , 78 is an internal space of the mouth 77, 79 is a cylindrical portion of the spout body 71, 80 is a crown, 81 is an elastic body for preventing leakage, 82 is a pressing portion of the crown 80, and 82a is a pressing portion 82.
Thin portion, 88 is a slit provided in the crown 80, 88
Reference symbol a denotes an engaging claw of the crown 80, and reference symbol 88b denotes a slope portion of the engaging claw 88a.

An elastic body 81 is enclosed in an internal space 78 of a mouth 77 of the spout body 71, and a crown 80 is enclosed in the mouth 77.
The pressing portion 82 formed on the elastic member 81 is inserted to apply a pressing force to the elastic body 81. The pressing force generates a pressing force toward the center of the elastic body 81, so that there is no gap between the inserted needle and the elastic body 81, and even after the needle is withdrawn, the center part Due to the pressing force directed toward, the passage opened by the inserted needle is blocked and the outflow of the contents is prevented.

[0007]

However, in this structure, since the needle penetrates not only the elastic body but also the pressing portion to form a passage, a considerably large force is required when the needle penetrates the pressing portion. However, there is a problem in that the tip of the needle is damaged, and when the needle sticks in the pressing portion, the scraps of the pressing portion are clogged with the needle.

An object of the present invention is to close an opening of a container in which an elastic body for preventing the outflow of a container can be easily mounted, a suction needle can be easily inserted, and the needle is not obstructed. To provide a spout.

[0009]

A spout according to the present invention is a spout which is mounted so as to close an opening of a container for liquid, and which is used for injecting / sucking out an object contained in the container. The spout is fixed to the container and has a liquid passage for injecting / sucking the contained substance and a spout main body having an internal space in contact with the liquid passage, and a spout enclosed in the internal space and in contact with a terminal portion of the liquid passage, The spout body is covered with an elastic body capable of penetrating the means for injecting / sucking out the contained matter and preventing leakage of the contained matter even while the means is being penetrated or after being removed, and the spout body. The crown body is configured to be sealed in the internal space of the portion, and the crown body is engaged with the spout body, a pressing portion that presses the elastic body against the spout body, and the crown body is inserted into the liquid passage. Equipped with an escape hole through which the injection / suction means That.

Further, the inner diameter of the escape hole may be equal to or smaller than the inner diameter of the liquid passage.

In the container using the spout of the present invention, the opening is closed by using the spout having the above structure.

The spout and the container using the spout according to the present invention have the elastic body enclosed in the inner space of the spout body and are pressed by the pressing portion of the crown body attached to the spout body. If the outer diameter of the is slightly smaller than the inner diameter of the inner space, the elastic body can be easily inserted into the inner space.

Since the pressing force toward the central portion can be generated inside the elastic body by the subsequent pressing of the pressing portion of the crown body, a gap is created between the inserted injection / suction means and the elastic body. Even after being pulled out, the passage opened by the injection / suction means is closed.

Further, since the pressing portion is provided with an escape hole through which the injection / suction means can pass, the injection / suction means does not penetrate the pressing portion, but penetrates the elastic body through the escape hole to spout the spout. Since it reaches the liquid passage of the main body, it can be easily inserted and is not damaged by penetrating the pressing portion.

By making the inner diameter of the escape hole equal to or smaller than the inner diameter of the liquid passage of the spout body portion, the influence of the escape hole on the pressing force of the elastic body can be substantially prevented.

[0016]

Next, embodiments of the present invention will be described with reference to the drawings. 1A and 1B are an external view and a cross-sectional view of a spout main body portion according to an embodiment of the present invention, FIG. 1A is a top view, FIG. 1B is a front view and a front cross-sectional view taken along the line AA, and FIG. FIG. 2 is a partial outline view of a side of the spout main body shown in FIG. 1 on the side of a take-out portion; FIG. 3 is a front view showing a state in which the spout body is attached to a container made of a synthetic resin sheet, and FIG. 4 is an outline view of an elastic body enclosed in the spout body. )
Is a top view, (b) is a side cross-sectional view of section D-D, and FIG. 5 is an outline view of a crown body attached to the spout body.
(A) is a top view, (b) is a front sectional view of section E-E, and FIG. 6 is a partial front sectional view showing a state in which the crown is attached to the spout body portion.

In the figure, reference numeral 11 is a spout body portion, 12 is a flange portion of the spout body portion 11, 13 is a housing attachment portion of the spout body portion 11, 15 is a tongue portion to be inserted into the housing body, and 16 is a housing body housing. The liquid passage of the object, 17 is the mouth of the spout body 11,
Reference numeral 17a is a locking portion provided on the lower surface of the mouth portion 17, 18 is an internal space of the mouth portion 17, 19 is a cylindrical portion of the spout body portion 11, 20 is a crown, 22 is a pressing portion of the crown 20, and 22a is Evacuation holes 23, 24, 25, 2 provided in the pressing portion 22
6, 27 and 28 are slits and 23 provided in the crown 20.
a, 24a, 25a, 26a, 27a, 28a is the coronal body 2
No. 0 engaging claws, 23b, 24b, 28b are sloped portions of the crown body 20, 30 is a synthetic resin sheet container to which the spout is attached, 31 is a synthetic resin sheet welded portion, 41 is the internal space 18 of the spout body portion 11. Is an elastic body that is inserted into.

The spout comprises the spout body 11 and the crown 2.
0 and elastic body 41. Spout body 1
A collar portion 12 is formed in 1 and one is inserted into the ink or the like accommodated in the synthetic resin sheet container 30 with the collar portion 12 as a partition, and the other is inserted with a needle to accommodate the contents. It is the take-out part. The synthetic resin sheet container 30 is formed in a bag shape by welding the joints of the folded synthetic resin sheets at the synthetic resin sheet welding portion 31. The container mounting portion 13 is integrally formed with the flange 12, and is heat-sealed to the opening of the synthetic resin sheet container 30 as shown in FIG. A pair of tongue pieces 15 for preventing adsorption of the synthetic resin sheet of the container are arranged in the container attachment portion 13 in a state of extending toward the penetrating direction of the needle to be inserted. The contents take-out section includes an annular mouth portion 17 and a mouth portion 1.
7 is formed of a cylindrical internal space 18 and a cylindrical portion 19 that connects the mouth portion 17 to the flange portion 12, and communicates between the pair of tongue pieces 15 and the internal space 18 of the stored-item take-out portion. A liquid passage 16 is bored through the flange 12 and the cylindrical portion 19. On the lower surface of the mouth portion 17 which is connected to the cylindrical portion 19, a locking portion 17a for fastening the crown body 20 is formed.

A cylindrical elastic body 41 as shown in FIG. 4 is enclosed in the internal space 18 of the mouth portion 17. In a normal state, the elastic body 41 has an outer diameter slightly smaller than the inner diameter of the internal space 18 and is formed in a spherical shape which swells in the axial direction as shown in FIG. 4 (b). When pressed from the direction to form a flat surface, it swells in the radial direction as a whole as shown by the chain line in the figure. As described above, in the normal state, the outer diameter is slightly smaller than the inner diameter of the inner space 18, so that the inner space 18 can be easily inserted.

A crown body 20 shown in FIG. 5 is attached to the mouth portion 17 in which the elastic body 41 is inserted into the internal space 18 as described above. The crown body 20 is composed of a cylindrical peripheral portion and a crown top portion having a concave portion in the central portion. A plurality of slits 23 to 28 are formed in the cylindrical peripheral portion at predetermined intervals in the circumferential direction from the crown to the vicinity of the central portion of the peripheral portion. The peripheral notch horizontal portion in contact with the lower end of the slit is horizontally extended inward to form engaging claws 23a to 28a.
The tip of 3 is connected to the lower inner wall of the peripheral portion at slopes 23b to 28b. Also, the left and right side surfaces of the sloped portions 23b to 28b are separated from the peripheral portion by thin slits, and the engaging claw 23a
28a are elastically flexible outside the peripheral portion.

Further, a pressing portion 22 is formed in a concave shape at the center of the crown of the crown body 20, and when the crown body 20 is crowned to the mouth portion 17 of the spout body 11, the pressing portion 22 is pressed. The lower surface of the pressing portion 22 and the engaging claw 23 are arranged so that the lower surface presses the elastic body 41 inserted into the mouth portion 17 and holds it in a horizontal state.
a, the elastic member 41 installation surface of the mouth portion 17, the locking portion 17
The related dimension of the lower surface of a is set. An escape hole 22a is formed in the center of the pressing portion 22 for a needle passing through the elastic body 41 to pass through.

The spout body 11 and the crown 20 described above are made of a synthetic resin such as polypropylene or polyethylene resin, and are integrally injection-molded into a predetermined shape.

Next, the assembly and operation of the above spout will be described.

An elastic body 41 is inserted into the internal space 18 of the mouth 17 of the spout body 11 that is injection molded. In this case, since the elastic body 41 can be easily inserted into the internal space 18 as described above, it is not necessary to use a special machine or apply a lubricant to the elastic body. The crown body 20 is continuously attached to the mouth portion 17 into which the elastic body 41 is inserted. At this time, a plurality of engaging claws 23a to 2a formed in the peripheral portion of the crown body 20.
8a, the slopes 23b to 28b are pushed by the outer peripheral surface of the mouth 17 to bend outward, the slopes 23b to 28b are slid and inserted on the outer peripheral surface of the mouth 17, and the engaging claws 23a to 28a are inserted. When reaching the locking portion 17a of the portion 17, the engaging claws 23a to 28
The a is restored to the original shape and locked to the locking portion, and the crown body 20 is locked to the spout body 11 as shown in FIG.

When the crown body 20 is attached to the spout body 11, the pressing portion 22 of the crown body 20 presses the elastic body 45 into a flat state as shown in FIG. FIG.
As shown in (b), the elastic body 45 is configured to swell in the radial direction as a whole in a pressed state. However, since the bulging in the radial direction is restricted by the inner peripheral wall of the mouth portion 17, A pressing force works against it. In this case, since the crown body 20 is securely locked to the mouth portion 17 by the engaging claws 23a to 28a, the elastic body 41 is always pressed toward the center.

In this state, since the relief hole 22a is provided in the central portion of the pressing portion 22, no pressing force is applied to this portion of the elastic body 41, and a sufficient pressing force is applied inside the elastic body 41. Since it does not take place, there is a concern that the hole through which the needle penetrates may not be fully closed after the needle is removed. However, as a result of the experiment, the inner diameter φa of the clearance hole 22a and the liquid passage 16 of the spout 11 shown in FIG.
It has been found that the through hole can be surely prevented by setting the relationship between the inner diameter φb and φa ≦ φb. Therefore, it is preferable that the inner diameter of the escape hole 22a be less than or equal to the inner diameter of the liquid passage 16.

When the needle is inserted into the spout constructed as described above and the contents stored in the container 30 are sucked out, the needle is inserted into the central portion of the escape hole 22a of the crown body 20. The inserted needle penetrates the elastic body 41 and communicates with the liquid path 16, whereby the contents of the container 30 are taken out. As described above, the pressing portion 22 of the crown body 20 applies a uniform pressing force toward the center to the elastic body 41 into which the needle is inserted. There is no gap between the inserted needle and the elastic body 41.

Even after the needle is pulled out, the elastic body 4
Since a pressing force working toward the center of 1 is applied, the passage opened by the inserted needle is blocked, and the contents do not leak out. For this reason, even if the needle is inserted or pulled out a plurality of times, the contents do not leak out.

As described above, the diameter of the escape hole 22a formed in the pressing portion 22 is set to be equal to or smaller than the diameter of the liquid passage 16 provided in the lower part of the internal space 18 for receiving the elastic body 41, so that the elastic body 41 is A sufficient pressing force can be applied to it.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made, for example, as described below.

The elastic body of the embodiment is formed in a shape that swells in the axial direction. When the elastic body is pressed by the pressing portion of the crown, the elastic body is pushed toward the area into which the needle is inserted. As long as pressure is applied, it does not matter what shape it is. Further, the size of the elastic body may be set so that it can be easily enclosed in the internal space of the mouth portion and a pressing force works when pressed. Furthermore, a partition wall may be formed in the liquid passage shown in the embodiment so that the contained object contained in the container does not contact the elastic body during use. Furthermore, the number of slits formed in the crown, the configuration of the pressing portion, and the like can be changed as necessary.

[0032]

As described above, according to the spout of the present invention, when the crown is attached to the mouth of the spout body,
Since the elastic body sealed in the inner space of the mouth is pressed by the pressing portion of the crown, it is possible to make the elastic body before insertion into a size that can be easily sealed in the inner space, and it is not necessary to use a special machine. And the manufacturing process becomes easier.

Further, since the elastic body is always pressed toward the center by the pressing portion of the crown, even if the needle is inserted to suck out the contents or pull out the needle, the contents flow out. The effect is that it can be reliably prevented.

Furthermore, there is an escape hole in the center of the crown,
The needle can be inserted into the elastic body without damaging the needle.

By penetrating the inner diameter of the escape hole to be equal to or smaller than the inner diameter of the liquid passage, the through hole can be surely prevented.

[Brief description of the drawings]

FIG. 1 is an external view and a sectional view of a spout body according to an embodiment of the present invention. (A) is a top view. (B) is a front view and a front sectional view of section AA.

FIG. 2 is a partial outline view of the spout body portion shown in FIG. 1 on the takeout portion side. (A) is a top view and a top cross-sectional view of a cross section BB. (B) is a front sectional view and a front sectional view of a section C-C.

FIG. 3 is a front view showing a state in which the spout body is attached to a container made of a synthetic resin sheet.

FIG. 4 is an outline view of an elastic body enclosed in the spout body. (A) is a top view. (B) is a side sectional view of section DD.

FIG. 5 is an outline view of a crown body attached to the spout body. (A) is a top view. (B) is a front sectional view of a section EE.

FIG. 6 is a partial front cross-sectional view showing a state in which the crown is crowned on the spout body.

FIG. 7 is a partially enlarged sectional view of a spout proposed in Japanese Patent Application No. 5336747.

[Explanation of symbols]

11, 71 Spout main body portion 12, 72 Collar portion 13 Container mounting portion 15 Tongue portion 16, 76 Liquid path 17, 77 Mouth portion 17a, 77a Locking portion 18, 78 Internal space 19, 79 Cylindrical portion 20, 80 Crown body 22, 82 Pressing part 22a Escape hole 23, 24, 25, 26, 27, 28, 88 Slit 23a, 24a, 25a, 26a, 27a, 28a, 8
8a Engaging claws 23b, 24b, 28b, 88b Sloping surface portion 30 Synthetic resin sheet container 31 Synthetic resin sheet welding portion 41, 81 Elastic body 82a Thin portion

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Seiichiro Karita 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Kiyomi Aono 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Incorporated (72) Inventor Yuuki Tajima 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (3)

[Claims] 1. A spout, which is mounted so as to close an opening of a container for liquid and is used for injecting / sucking out an object contained in the container, wherein the spout is attached to the container. A spout body portion which is fixed and has a liquid passage for injecting / sucking the contained material and an internal space in contact with the liquid passage; and a spout body portion sealed in the internal space and in contact with a terminal portion of the liquid passage, An elastic body capable of penetrating the injecting / sucking-out means and preventing leakage of the contents even while the penetrating / extracting means is being penetrated and after being removed, and the spout body is covered with the elastic body, and the elastic body is attached to the spout. A crown body for enclosing in the internal space of the body portion, the crown body engaging means with the spout body, a pressing portion for pressing the elastic body against the spout body, and the pressing portion. And is inserted into the liquid passage. Spout serial injection and suction means, characterized in that it comprises a relief bore passing through. 2. The spout according to claim 1, wherein an inner diameter of the escape hole is equal to or less than an inner diameter of the liquid passage. 3. An accommodating body using a spout for liquid, wherein the opening is closed using the spout according to claim 1 or 2.