JP4525127B2 - 1 piece plug for aseptic filling and packaging - Google Patents

Description

  The present invention relates to a one-piece plug for aseptic filling packaging that is internally provided and protruded at a pouring position of a liquid paper container used for aseptic filling packaging such as food.

  Conventionally, in a liquid paper container used for liquid contents such as food and non-food, in consideration of ease of use at the time of use, for example, as shown in FIG. A cap-shaped liquid paper container (20) in which a two-piece plug (10) consisting of a cap (400) and a plug main body (100) is provided on the inclined plate (22) at the top of the gable roof shape, It was used over a wide range of applications. For example, as shown in FIG. 7, the cap (10) has a cap (400) attached to an outlet tube (120) of the plug body (100) protruding from the plug mounting hole (23) of the container (20). Although it is screwed, normally, in order to ensure complete sealing and virginity at the time of distribution or easy opening at the time of use, a sealing plate ( 130) for sealing and opening in use, an inverted V-shaped annular cut (131) is provided at a predetermined position on the lower surface of the sealing plate, and an annular thin line of weakness (132) And a column (133) having a pull ring (134) at the tip is erected on a predetermined side of the upper surface in the vicinity of the inside of the annular thin line of weakness, and a stopper is used to open the container. When opening the cap, remove the cap and pour out the spout body Pulling upward over the finger tip to pull ring which is housed inside, was opened tore thin annular line of weakness blockade plate. In addition, after using the spout which opened, the cap was screwed and attached to the extraction pipe | tube, and it resealed.

  By the way, recently, in the case of food, aseptic filling packaging in which food is sterilized at high temperature for a short time and then filled in a container sterilized with hydrogen peroxide or the like has been generally performed. A liquid paper container with a cap has also been used as a container. However, there is a shower cooling process to cool the container after high-temperature filling of the contents, and in the conventional cap (400) of the two-piece plug (10) shown in FIG. An inner surface and a plug that form a female screw (421) of the peripheral wall (420) of the cap by allowing cooling water to enter the gap with the plug main body (100) or intrusion of dust or microorganisms during storage. The outer surface forming the external thread (122) of the dispensing cylinder (120) of the main body may be contaminated. Further, in sealing with the contact sealing ring (411) or the inner sealing ring (412), cooling water, Dust, microorganisms, etc., sometimes entered the inside of the dispensing tube and contaminated it. Further, when the inner surface of the container is sterilized with hydrogen peroxide, the inner peripheral surface of the pedestal ring (110) of the plug body is almost vertical, and a corner is formed at the connection position with the outer peripheral lower surface of the sealing plate (130). In some cases, the corners are difficult to sterilize. Further, there is an inverted V-shaped annular cut (131) on the lower surface of the sealing plate, and this cut may be difficult to sterilize. In addition, during the sterilization treatment, it is difficult to eliminate hydrogen peroxide that has entered the gap between the cap and the plug main body, and the amount of remaining hydrogen peroxide sometimes becomes a problem. For this reason, there has been a demand for a plug for a liquid paper container compatible with aseptic filling and packaging with a one-piece plug whose lid is connected to the plug body through a hinge portion so as to be opened and closed.

  The present invention solves the problem of the plug of the liquid paper container in the above-described conventional aseptic filling packaging, is easy to sterilize, has a good sealing property, is difficult to contaminate the inside, and can be attached to the container. Therefore, a one-piece plug for aseptic filling and packaging that is easy to use is provided.

That is, the present invention is a one-piece plug in which a lid part is openably and closably connected to a rear part of a plug body via a belt-wound type hinge part, and the plug body has a flange at the outer peripheral lower end. On the pedestal ring having a downward opening inclination angle of the inner peripheral surface of 75 ° or less, a pouring cylinder provided with an occlusal ring at the upper end of the outer periphery is erected, and a sealing plate is provided and sealed on the inner lower side of the pouring cylinder An annular cut is provided on the upper surface at the planned opening position of the sealing plate to form an annular thin line of weakness on the lower surface, and an arrow-shaped post is erected on the upper surface in the vicinity of the rear side of the annular thin line of weakness. A pull-ring that is connected in a V-shape to the tip of the tube and has an upward pull ring, and a plurality of mounting guides and lid close ribs are provided on the upper surface of the pedestal ring on both the left and right sides of the extraction tube, The lid has an opening / closing knob projecting on the outer periphery of the lower end of the front peripheral wall. And vertically the inner sealing ring on the lower surface, the occlusion ring provided in the circumferential wall lower end circumference, when closing the lid on the spout body, a resulting gap between the joint and the hinge portion In addition, the inner sealing ring of the lid is in intimate contact with the inner peripheral surface of the tip of the spout cylinder of the plug body, the occlusal ring of the lid is engaged with the occlusion ring of the spout cylinder of the plug body, The lower end surface of the peripheral wall of the lid portion is in close contact with the upper end surface of the attachment guide and lid portion close rib of the plug body.

  As shown in FIG. 1, the one-piece plug (10) for aseptic filling packaging according to the present invention has an inclination angle (θ °) of 75 ° on the inner peripheral surface of the base ring (110) of the plug main body (100). The connecting part with the sealing plate (130) can be curved by the downward opening below, the bottom surface of the sealing plate of the plug body is flat without an annular cut (131), and the hinge part (400) is a belt winding system. Since a gap is formed at the joint, sterilization with hydrogen peroxide or the like can be easily performed.

  In addition, as shown in FIG. 1, the one-piece plug (10) for aseptic filling packaging according to the present invention has a lid top (210) when the lid (200) is closed to the plug body (100). The inner sealing ring (221) suspended from the lower surface is in close contact with the inner peripheral surface of the tip of the spout tube (120) of the plug body, and at the same time, the occlusion provided on the inner peripheral surface of the lower end of the peripheral wall (220) Since the ring (221) is firmly engaged with the occlusal ring (121) provided at the outer peripheral upper end of the spout tube of the plug body, the sealing of the plug is good, the cooling water after high temperature filling, Contamination due to intrusion of dust, bacteria, hydrogen peroxide during sterilization treatment, etc. can be prevented. It becomes possible to extend the best-before period in chilled distribution and to apply to normal temperature distribution.

  Further, the one-piece plug (10) for aseptic filling packaging according to the present invention is provided on both the left and right sides of the dispensing tube (120) of the plug body (100) as shown in FIGS. 2 (a) and (b). A plurality of mounting guide / lid close contact ribs (150) are erected on the upper surface of the pedestal ring (110), and the ribs plug the plug (10) as shown in FIG. When projecting into the dispensing mounting hole (23) of the container (20), it serves as a mounting guide, and when the plug is welded to the liquid paper container by the ultrasonic welding method, It also plays the role of centering the plug. As shown in FIG. 1, since the upper end surface of the rib is in close contact with the lower end surface of the peripheral wall (220) of the lid part (200), it plays a role of pressure receiving when the lid is plugged into the plug body. Moreover, it becomes easy to perform sterilization treatment.

In addition, the one-piece plug (10) for aseptic filling packaging according to the present invention has a belt-wrapped hinge part at the rear of the plug body (100) as shown in FIGS. 1, 2 (a) and 2 (b). The lid portion (200) is connected to be openable and closable via (300), and when used, the lid portion is opened by an opening / closing knob (230) protruding from the outer periphery of the lower end of the peripheral wall (220) in front of the lid portion. Is easy to open and close. Moreover, as shown in FIG. 1, the pull ring (134) for opening the sealing plate (130) accommodated in the extraction pipe | tube (120) is a front-end | tip of a support | pillar (133) as shown in FIG. As shown in FIG. 1, it is connected upward in a V-shape and is easy to put a finger on the pull ring, and the column (133) has an annular thin line of weakness (132) as shown in FIG. 5. ) At the position in the vicinity of the inner side of the rear side, the breaking force concentrates on the rear portion of the annular thin line of weakness, which can trigger breakage, and the annular thin line of weakness is easily broken. The plug of the present invention is a plug that is easy to use when used.

  Next, an embodiment of a one-piece plug for aseptic filling packaging according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a sectional view of a one-piece plug for aseptic filling packaging according to the present embodiment, FIG. 2 (a) is a plan view thereof, and FIG. 2 (b) is a side view thereof. FIG. 3 is a cross-sectional view taken along line A-A ′ of FIG. FIG. 4 is a cross-sectional view showing the connection shape of the pull ring connected to the tip of the column, and FIG. 5 is a cross-sectional view taken along the line B-B ′. FIG. 6 is a perspective view of an example of a liquid paper container with a stopper.

  As shown in FIG. 1, the one-piece mouthpiece (10) for aseptic filling packaging according to the present embodiment has a lid portion (200) via a belt-wrapping hinge portion (400) behind the mouthpiece main body (100). Is connected to be openable and closable. For example, the body is protruded by heat fusing with an ultrasonic fusing method into the cap attachment hole of the top inclined plate of a liquid paper container having a square cylindrical shape. Is. This plug is usually made by using a thermoplastic resin such as polypropylene or polyethylene having rigidity suitable for the purpose of use and integrally molding the lid and the plug body by injection molding. .

  As shown in FIG. 1, the structure of the spigot body (100) of the present embodiment is provided with a flange (140) that is thermally fused to the spigot mounting hole (23) of the liquid paper container (20) at the lower end of the outer periphery. A pour cylinder (120) in which an occlusal ring (121) with a lid (200) is provided on the upper end of the outer periphery of a pedestal ring (110) having a downward opening inclination angle (θ °) of 75 ° or less on the inner peripheral surface The sealing pipe (130) is provided on the inner lower side of the pouring cylinder, and the lower face is provided with a V-shaped annular cut (131) on the upper surface at a predetermined opening position of the sealing board. An annular thin line of weakness (132) is formed on the upper side of the annular thin line of weakness, and a column (133) having an arrow-shaped horizontal cross section is provided on the upper surface in the vicinity of the rear side as shown in FIGS. 4 and connected to the tip of the column (133) in a V shape as shown in FIG. As shown in FIGS. 2 (a) and 2 (b), there are six attachments on the upper surface of the pedestal ring (110) on both the left and right sides of the dispensing tube (120). The guide and lid close ribs (150) are erected in correspondence with the left and right three. In addition, if the downward opening inclination angle of the inner peripheral surface of the pedestal ring is set to 75 ° or more, a corner portion having a small curved surface is formed at the connecting portion with the sealing plate, and sterilization becomes difficult. Further, as shown in FIGS. 2 (a) and 2 (b), four pedestal rings (110) are provided at positions above the outer peripheral surface in order to make it easier to attach the plugs to the plug mounting holes of the liquid paper container. The temporary fixing protrusions (111) are provided so as to correspond to the equal intervals.

  As shown in FIG. 1, the lid (200) of the present embodiment has an opening / closing knob (230) projecting from the outer periphery of the lower end of the front peripheral wall (220), and a plug body on the lower surface of the top plate (210). An inner sealing ring (211) for sealing the (100) dispensing cylinder (120) is suspended, and an occlusal ring (221) with a plug body is provided on the inner peripheral surface of the lower end of the peripheral wall. Then, when the lid portion is closed to the plug body, the inner sealing ring (211) of the lid portion is in close contact with the inner peripheral surface of the distal end portion of the dispensing tube (120) of the plug body, and the occlusal ring ( 221) meshes with the occlusal ring (121) of the spout cylinder of the plug body, and the lower end surface of the peripheral wall (220) of the lid portion is on the upper end surface of the mounting guide and lid portion close rib (150) of the plug body. Product design is closely related.

  The one-piece plug for aseptic filling packaging according to this embodiment is easy to sterilize at the time of aseptic filling packaging, has a good sealing property in the distribution process, is less likely to contaminate the inside, and has a plug for a liquid paper container. The wearability was good and the mouthpiece was easy to use when used.

It is sectional drawing of the 1 piece spigot corresponding to aseptic filling packaging of one Embodiment of this invention. (A) is a top view of the stopper of FIG. 1, (b) is a side view. FIG. 2B is a cross-sectional view taken along line A-A ′. It is sectional drawing which shows the connection shape of the pull ring connected to a support | pillar front-end | tip. FIG. 5 is a sectional view taken along line B-B ′ of FIG. 4. It is a perspective view of an example of a liquid paper container with a stopper. It is sectional drawing of the stopper of an example of the conventional liquid paper container with a stopper.

Explanation of symbols

10 ... Plug body 20 ... Container 21 ... Body 22 ... Inclined plate 23 ... Plug attachment hole 100 ... Plug body 110 ... Base ring 111 ... Temporary fixing projection 120 ... Dispensing tube 121, 221 ... Occlusal ring 122 ... Male thread 130 ... Sealing plate 131 ... Annular cut 132 ... Annular thin wall weak wire 133 ... Post 134 ... Pull ring 140 ... Flange 150 ... Rib 200 ... Lid 210 ...... Top plate 211, 412 ... Inner sealing ring 220 ... Peripheral wall 230 ... Opening / closing knob 300 ... Hinge portion 400 ... Cap 410 ... Top plate 411 ... Contact sealing ring 420 ... Peripheral wall 421 …… Female thread θ ° ...... Inclination angle

Claims (1)

A one-piece plug in which a lid part is openably and closably connected via a belt-wrapped hinge part at the rear of the plug body. The plug body is provided with a flange at the lower end of the outer periphery and opens downward on the inner peripheral surface. A pouring cylinder provided with an occlusal ring at the upper end of the outer periphery is erected on a pedestal ring having an inclination angle of 75 ° or less, and a sealing plate is provided on the inner lower side of the pouring cylinder, and the opening of the sealing plate is planned An annular notch is provided on the upper surface to form an annular thin line of weakness on the lower surface, and an arrow-shaped post is erected on the upper surface in the vicinity of the rear side of the annular thin line of weakness. A pull ring that is upwardly connected to the front is provided, and a plurality of mounting guides and lid close ribs are provided on the upper surface of the pedestal ring on both the left and right sides of the dispensing cylinder, and the lid is forward An opening / closing knob is projected on the outer periphery of the lower end of the peripheral wall, and the inner sealing ring is And vertically to the occlusal ring provided in the circumferential wall lower end circumference, when closing the lid on the spout body, with a resulting gap between the joint and the hinge portion, the lid portion The inner sealing ring is closely in contact with the inner peripheral surface of the tip of the spout cylinder of the spigot body, the occlusal ring of the lid part is engaged with the occlusal ring of the spout cylinder of the spout body, and the peripheral wall of the lid part The one-piece mouthpiece for aseptic filling packaging, characterized in that the lower end surface of the portion is in close contact with the upper end surface of the attachment guide / lid portion intimate rib of the mouthpiece main body.

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