JPS58216553A - Liner type self-ventilation spout - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The incorporation of self-venting devices into liquid dispensing spouts has long been recognized as a desirable aid to smooth pouring operations without surges. The type of spout commonly used in industrial size buckets and cans is collapsible with a 5J flexible wall section that allows the spout to be moved from a compact retracted or nested position to a fully extended pouring position. can be raised. These conventional pour spouts incorporate self-venting devices, which eliminate the need for a completely separate and expensive vent at the top of the container. It consists of a tubular section layer with a circumferentially outwardly directed flange at its lower end. / When the IE spout is in the nested or retracted position, the upper part of the tubular vent is in several cases inside the spout Ll, The main part of the ventilator weighs 1-1g l-J
is placed in the container in the axial direction. + '4J deflection 1/1 Hold the spout in its pouring position] - When the spout falls 1. i
The l'+ air member is displaced in the shaft 1 fitting direction, and the ventilation flange is
1-L" adjoins the bottom at a distance, giving a series of air population paths between the two.

Although the prior art structure described above adequately performs its intended ventilation function, it suffers from the following deficiencies, which are solved by the present invention. The most important of these is that the incorporation of conventional tubular ventilation structures requires the overall size of the collapsible or portable puppy to be significantly larger in the 'ill' direction. / Kotoe has been working with bucket manufacturers to finish the head so that it has a lid separate from the bucket body, and to stack the brush bodies in a nested state to reduce transportation costs. ,+[! It is ↓.

It is also normal to put the lid on the bucket, but with the pouring aeration device, the vertical profile of the lid doubles, making it virtually impossible to put the lid back on. In fact, since the conventional self-mounting device f'f becomes quite bulky, it is difficult to fit the swallow itself.
Ru. This conventional structure has further drawbacks, and
) - Place the ventilation member firmly inside 14'l (
＝J has to be calculated. This is usually done by heat sealing, but this not only causes high costs, but also requires a fairly strong heat seal to prevent it from coming off during transportation and handling. be. However, the mechanical splashing effect of the fluid (s
The venting device can easily come loose from the spout due to the loosing action. Even mechanical erosion by the filling fluid can cause significant stress on the heat seal joint between the pourer and the venting device.

FIELD OF THE INVENTION The present invention relates to a flexible tube assembly for dispensing liquid products from containers.

The disadvantages of the above or other conventional self-contained air pumps are that the shape of the BJ flexible wall makes it difficult to use compact containers.
Improved MJ flexible wall note that has become +, iJ movement by reversing it from the F position to the protruding position 1r1 and leaning tightly against the /1 LJ with the ventilation section retracted. Ki L,]
The structure of the present invention provides a difference. this,'
The opening 11 has a closed 111 channel through which the spout is securely attached to the packet opening neck by means of a metal swage link. The overlying vent member has a circumferential lip by which the vent phase is mechanically secured in the sealing channel under the action of a locking ring. The vent member is shaped to allow air to enter from its periphery and to allow liquid to flow through the center when the spout is in its protruding pour position. This controlled liquid flow can be obtained by using a simple self-venting device that closely matches the shape of the nested spout and adds little to the nested vertical profile of the lid assembly. . Furthermore, by using a gold caulking ring to mechanically attach this self-venting device to the container opening, there is no damage to the venting device, and the venting device 6° will not come off during subsequent use. There isn't. The spout also has a manually removable sealing membrane that closes the opening 1'' and a reclosing cap that recloses the opening when the sealing membrane is removed.

SUMMARY OF THE INVENTION It is, therefore, a principal object of the present invention to provide a new and improved pour spout lid incorporating a self-venting device that provides a smooth and controlled pouring action.

Another object of the invention is to provide a simple and compact pouring vent device with a telescoping spout.

Another object of the present invention is to provide an improved tamper-evident telescoping spout that can be prepared for use by hand only.

Other and more detailed objects will become apparent and will be pointed out as the following description progresses in conjunction with the accompanying drawings.

Broadly speaking, the self-contained tL spout assembly according to the present invention includes a telescoping plastic fT spout 1, a metal crimping link 2, a plastic overcap 3, and a tL vent assembly. device i'i4.

More particularly, the spout 1 in the retracted or nested position has at its base a circumferential inverted sealing channel which has a short outer wall 6, a top wall 7 and an elongated It consists of an inner wall 8. A relatively flexible outer wall 9 extends from the top end of the inner channel wall 8 to the top end of a relatively rigid upright neck 10. The pouring lock 10 has a helical external thread 11. Immediately after this outer screw thread, pour ronetsk 10
is closed by a sealing membrane 12 surrounded by a tear zone 13. Immediately on one side of this sealing membrane 12 there is provided horizontally a ring puller 14 which can be gripped with 11 fingers and is connected to the inner edge of the membrane adjacent to the tear zone 13 by means of a connecting neck 15. The vertical gap between the membrane and the ring puller is less than the vertical cross-sectional thickness of the link puller.

The metal ring 2 has a reverse channel-shaped cross section of 4t, and has a long and narrow circumferential wall 16 that wraps inward and terminates at the edge, a top wall 17, and a lowermost inner wrap. and a shortened inner wall 18 terminating in a section.

The locking ring 2 folds over and confines the spout sealing channel therein.

The reclosable overcap 3 has a circumferentially enlarged top wall 19 surrounded by a pair of hinged lifting handles 20, which are attached to the metal links 4 in the initial retracted position. A cylindrical skirt 21 hangs down from the inner edge of the 1° link inner wall 18, and this skirt tl1 link inner wall 1
It engages with the do of the lower edge of the winding 8, and the phase'r multi;i: +Ishi.

I'm here. From the section of the cap, there is an internal thread on the cylindrical side wall 22.
There is also a samurai, Ylki 11 Netsuku 10, Outerneshiyama 1
1 and -C o fu1+ J+, opened downward provided inside 'i' ) Let's do it, ': P72 complete screwing, zo L2 - then the inner closing Jj will be done, 1, 2) - ki 1', link and cathu.

``2i I like myself 1
Sturdy and compact that is effective for chickens 1 and 1: -
units can be obtained.

A generally cup-shaped pour vent device 4 may also be provided as part of this assembly. The vent system includes an annular bottom wall 24 and an upright outer side wall 25 terminating in a circumferential lip 26.
A series of 1" air inlet slots 27 are formed in the annular area of the upper end of the outer wall 25, which includes a 31" air vent.

At the upper end of the side wall 25, a short cylindrical rod 28 is also provided between the lip 26 and the slot 27. Ventilator bottom wall 2
4 is open in the center providing a liquid outlet passageway surrounded by a q inner wall surface 29. A small drain hole 30 is also provided in the bottom wall 24.

To apply the lid assembly described above to a self-venting device, the lid assembly is inserted into the aerator 14 and poured into the annular pocket formed by the aerator outer wall 25 and inner wall 29. It is enough to just tightly confine it to the wall 9. Both the inner and outer walls of the ventilation device 6 are tapered upward to aid assembly. The aerator and the vent 1'' are compressed to phase q-, so that the aerator outer wall 2
A cylindrical band 28 at the upper end of 5 closely surrounds the inner wall 8 of the sealed channel 7+. When the aerator lip 26 contacts the upper surface of the channel top wall 7, there is a tight 17 friction fit between the aerator band 28 and the inner wall 8. Upon completion of the assembly, the uppermost edge of the vent inner wall 29 surrounding the fluid 1'' passageway is immediately below the LL 1'' membrane 12. As can be seen in Figure 1, the completed self-venting sip assembly is a compact unit and does not require costly joint assembly operations. Since the variation in the overall contour of the lid is very small, subsequent handling, packaging and storage are economical and without any draughts.

The method of using the self-venting body can be seen in Figure 3. When the sealing channel is located in the opening part of the cupboard, the aerator lip 26 is in contact with the opening neck 31.
It is tightly compressed between the channel walls 7. As a result, a mechanical interlocking effect is provided, making removal of the vent device virtually impossible. This arrangement has been found to be highly desirable in order to counter the damaging forces normally caused by the splashing action of the contained fluid. Furthermore, the conventional harmful swelling acid effects imparted to synthetic plastic parts by carbon and arsenic loadings do not occur.

To prepare the lid to use this LL Ki 1-1,
Using the large limp holder f=20 on the overcap 3, pull out the flexible wall 9 and reverse the arrangement to the upright pouring position. When the overcamp 3 is removed and the membrane is torn by the easily accessible link puller 14, the container is ready for dispensing. Atmospheric pressure air, which is rapidly discharged following the ventilator central passage 29, moves along the inner surface of the limb Q and is instantaneously displaced by passing through the air entry slot 27. By arranging the membrane 12 at a position L2 as close as possible to the opening part 1-1, leaving only a gap for the link puller 14, the maximum protrusion of the fluid passage wall 29 can be achieved. When the wall 29 reaches at least the horizontal direction of the air intake lower L2γ, sufficient separation of the outflowing liquid and the inflowing air takes place and a satisfactory ventilation effect can be obtained.

In this manner, the self-pressure gutter design of the present invention facilitates rapid and accurate dispensing of pneumatic containers without uncontrollable pulsating surge effects. In addition to the simplicity of construction and the resulting low manufacturing costs, the fact that the entire contour of the spout remains virtually identical even with self-venting means that filling and handling conditions are improved. is kept constant. This low-profile structure r1 is advantageous, especially in view of the common practice of folding the lid.Other changes and modifications and different designs of the firewood 11 assembly of the invention are possible. It will be obvious to this person that this is true, and that there is nothing to be done without departing from the scope of the invention.

. Accordingly, it is to be understood that all matters contained in the foregoing description and shown in the detailed drawings are to be construed as illustrative and not in a limiting sense.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of a pot spout having a ventilation device according to the present invention. Figure 2 shows the Pi-palate and the separately attached spout ((1
FIG. FIG. 3 is a cross-sectional view showing the pressing hole and the blocking body in the protruding pouring position of the ridge crimped into the container wall opening. Figure 3a is an enlarged fragmentary cross-sectional view of the spout wall connection shown in Figure 3; Bar cap, 4... Pour vent device, 10... Pour neck, 12... Sealing membrane, 13... Row mounting area, 14... Link pull. FIG.1

Claims (1)

[Claims] 1. Includes a spout made of plastic integrally formed with the container,
2. an annular sealed channel with various ports disposed circumferentially at one end thereof; a relatively flexible outer wall extending downwardly from the sealed channel; and a relatively rigid outer wall connected to the lowermost end of the outer wall and with the spout concentrically recessed in the retracted position. an inner wall of the spout, the inner wall of the spout terminating at the uppermost free end; a sealing membrane closing the inner wall; an annular metal swage link located above the sealing channel; In a container lid construction having an integrally molded plastic cap mating with a spout, a surge-proof drain spout is located below the exterior wall of said pour 1, and in a nested position above said exterior wall of said pour 1. A container lid structure characterized by having a shape that substantially conforms to the contour. 2. In the container lid structure according to claim 1,
The anti-surge pressure inlet connects the direct q side wall and the bottom wall with flf!
i a thin-walled plastic cup-shaped section, the top of said side wall having a series of circumferentially disposed air vents terminating in seven closing engagement means, and a fluid outlet passageway formed in said bottom wall; The heat structure is characterized by: 3. In the container lid structure according to claim 2,
A container lid structure, characterized in that the surge rainproof liquid port closing engagement means includes a rubbing engagement portion provided on the side wall. 4. In the structureless container according to claim 2 or 3, it is provided that the closing engagement means of the surge cleaning fluid includes a lip extending in the circumferential direction. -1:1 structure for each vessel. 5 Patent, i/I-Claim No. 4 JJ↓ content 2:
9. A container lid structure characterized in that, in the bottom structure, a lip extending in the circumferential direction of the surge liquid ['' is located in contact with the ring tight channel 1.j. 6. A container lid structure according to claims 2 to 5, characterized in that the fluid path before the surge pouring liquid [-] mixes an upright tubular wall. 7. Range of Box Permission Requirements The container lid structure according to item 6, characterized in that the upright fluid passage of the pouring spout described in iiJ extends northward at least to the water/bottom surface of the air inlet hole. Container lid structure. 8 In accordance with the d-instrumental structure described in any one of the claims 1 to 7, the rjII lid is surrounded by an upright neck! The container wall is fitted with an opening 1J, and the metal fastening link fixes the pouring spout to the upright neck. Container lid structure.