KR19980081035A - Weld injection member and cap - Google Patents

Abstract

The weld injecting member and cap for attaching to the container member of the film-like composite material comprise a substantially tubular base portion having at least one welding rib formed on an outer circumferential surface of the base portion close to one of its shaft ends and defining an injecting passage therethrough; Means for mounting the cap on the base portion. A hermetic wall connected across the injection passage and comprising an assembly of fragile lines is provided adjacent the other axial end of the base portion. Vulnerable lines provide portions that are separated under the influence of external forces acting on the closure wall by the cap upon axial transfer of the cap from the first position to the second position to form a passage opening in the closure wall. The other lines of weakness work in the form of film hinges. The removal ring may be provided on the cap to prevent the cap from moving to the second position.

Description

Weld injection member and cap

The present invention relates to a combination of a weld injection member and a cap of a synthetic material for attaching to a container member of a film-like synthetic material in the form of a refill bag for storing liquid or gelled material. weld-pourer member and a cap).

In known weld injection members of the composite, the threaded cap may be screwed onto the neck portion of the weld injection member to seal the injection opening configured in the weld injection member. Another method for sealing the injection opening is to put a cap that engages the latching beads on the neck of the weld injection member having an interlocking collar formed in the outer circumference. In these methods, the sealing of the injection opening during storage or transfer depends entirely on the firm seating of the sealing cap. As a result, it is not always possible to ensure a complete seal at this time and furthermore it is not possible to rule out the possibility of a sealing cap to be dealt with during the inventory process. Furthermore, any heat treatment of the contents of the container for airtight purposes, for example for the purpose of airtight after the container is filled and the sealing cap has been engaged in a suitable position, does not generally require this heat treatment. On the other hand, it is very preferable from the viewpoint of hygiene and price reduction that foodstuffs such as tomato ketchups can be infused into a supplementary bag and then heat treated.

The present invention is simple and user-friendly and convenient to manufacture in the form as described above, while providing effective sealing of the contents of the welded container member after filling the container and during storage and transportation of the container. It is an object of the present invention to provide an assembly of a weld injecting member and a cap which can be easily heat treated as described above.

The weld injecting member and cap for this purpose define a tubular base and a substantially tubular base having at least one welding rib formed on the outer circumferential surface of the base portion close to one of its shaft ends, the cap being on the base and the cap. A sealing wall covering means of the injection passage and comprising an assembly of fragile lines in accordance with the present invention adjacent the other axial end of the base portion, the fragile lines being arranged in a second position at a first position of the cap relative to the base portion. The cap may be separated into at least one portion under the influence of an external force acting on the closure wall by the cap upon axial transfer to the position, thereby providing at least one passage opening in the closure wall. The inner closure of the container by the closure wall allows the heat treatment as described above to the contents of the container before the cap is screwed or hit by the machine. On the other hand, the present invention ensures that there is no problem opening the injection passage without depending on the tools necessary for the consumer to adopt. Embodiments of the present invention that are particularly convenient for the user include a tear-ring, which is formed on the cap to prevent movement of the closure cap to the second position. To open the injection passage, the user only needs to remove the removal ring and rotate the cap to axially feed the cap until it is cut through the sealing wall. Preferably, the assembly of fragile lines includes film-hinge-like first fragile lines and cuttable second fragile lines, the second fragile lines being coupled to each other or separating the second fragile lines. Thereby defining at least one sealing wall portion that is pivotable into the plane of the sealing wall. Therefore, it does not generate waste that can be removed and affect the contents of the container or the environment.

Figure 1 shows the weld injection member according to the invention with the cap removed, the left part of the overall shape, the right part of the longitudinal section, respectively.

FIG. 2 is a partial cross-sectional view of the weld injecting member taken along the line II-II of FIG. 1; FIG.

3 is a plan view of a weld injecting member.

4 is a cross-sectional view of the weld injecting member and cap shown in FIGS. 1-3 in a first pre-use state.

FIG. 5 is a view similar to FIG. 4 of the weld injecting member and cap in a first post-use state. FIG.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to an Example and drawing.

The weld injection member as part of the assembly according to the invention is an intergal piece of rigid synthetic material, such as polyethylene or polypropylene, and is inserted into the slit-like opening of the assembled container member (not shown). It may also be permanently attached to the container member by a bonding process such as an ultrasonic welding process. The container member is preferably made of a film-like composite material that is used as a supplementary bag for storing liquid or gelled materials such as food ingredients, cleaning materials, pesticides, fungicides, etc. in order to reduce the amount of waste material.

As described, the weld injection member comprises a tubular base portion 1 having an appropriate axial length, and the injection passage 3 extends in the axial direction and passes through the tubular base portion. In use, the injection passage 3 provides a fluid connection between the external environment and the interior of the container member that is attached to the sealing member in the manner described above. One or more welding ribs 4 described in the present invention (4) are formed adjacent to one axial end of the tubular base 1, which ribs are axially spaced from one another and located in parallel. Each of the welding ribs 4 may be formed in a manner as described in WO 96/38394 and thus can be referred to as a more detailed description.

The thin wall 5 located in the axial plane of the weld injecting member projects radially outwards from the opposing parts of the base part 1 and extends centrally through the welding ribs 4. The wall 5 forms a support wall between adjacent welding ribs 4 and ribs at their set radius and axial portions relative to the base 1 under the load occurring during the welding process or subsequent use. It is effective to support them. As a result of the stable effect of the wall 5, the thickness of the welding ribs 4 simultaneously provides sufficient support properties for the film-like material to be welded, while its specification can be determined for the proper removal of heat from the welding area. . As indicated by reference numeral 6, the wall 5 may project radially past the outer ends of the welding ribs 4, as in the form of the prow of the ship, and thus on the joining ribs 4. Improves stable movement of film-like material.

The energy supplied during the welding process melts the defined area of the welding ribs 4 and the film-like material adjacent thereto so that the material is permanently attached to the weld injection member in a sealed state.

According to the invention, a sealing wall 7 for connecting and sealing across the injection passage 3 is formed inside the injection passage 3 of the sealed shaft spaced from the adjacent shaft end of the base 1. The closure wall 7 comprises a first weakening line 8 which distinguishes the central rectangular or square part. The first fragile line 8 is preferably in the form of a film hinge. As shown in FIG. 3, a pair of intersecting oblique second or inner weakening lines 9, 9 ′ are formed in the part of the sealing wall 7 which is divided by the first weakening line 8. 2 Vulnerable lines are of such dimensions that they can be cut when a certain amount of force exerts externally on the central portion, whereby the central portion is divided into four triangular pieces 10a, 10b, 10c, 10d, each of which is the outer one. 1 is connected with the sealing wall 7 along the portions of the weak line 8. This allows the pieces 10a, 10b, 10c, 10d to be inward about the regions of the first weak line 8 to form a passage through the sealing wall 7, as explained in FIG. 5. Makes it possible to rotate.

The outer periphery of the base portion 1 is formed with a screw portion 11 so that the cap 12 shown in FIGS. 4 and 5 may be screwed onto the base portion 1. In FIG. 4, the cap 12 is shown in position relative to the base portion 1 of the weld injection member, with spikes or protrusions 13 extending axially from the center portion of the cap 12 being enclosed by a sealing wall. It is kept in contact with (7). For this purpose, an axial extension in the form of a tear-off ring (14) is formed on the outer circumferential wall of the cap through axially extending webs (15) capable of a suitable number of removals.

By means of a removal tab (not shown) formed on the removal ring 14 or the like, the shearable webs 15 can be stripped only when sufficient force acts on the removal ring 14, thereby removing the removal ring 14. ) Can be removed from the cap 12, whereby the cap is screwed further downward in the axial direction on the base part 1. In this movement, the spike 13 comes into contact with the sealing wall 7, so that the second weak lines 9, 9 ′ are finally separated. Thereafter, the triangular pieces 10a, 10b, 10c, 10d of the sealing wall 7 can be rotated to the position shown in FIG. 5 by the spike 13 to form a passage opening in the sealing wall 7. have.

The spike 13 can act as a sealing cone to seal the opening formed due to the penetration of the sealing wall 7. Furthermore, if desired, the spike 13 may have an opening through the spike at the position of the cap 12 shown in FIG. 5 so as to empty the contents of the container.

It is apparent that the embodiments described above can be modified without departing from the spirit of the invention. For example, a pair of parallel first spaced apart instead of a continuous, curved film hinged first or outer weak line 8 and a diagonally extending staggered second or inner weak line 10. Weak lines may be provided, which are connected at their ends by a pair of second weak lines extending vertically and spaced in parallel. In this case, another second line of weakness must be provided along a portion of the closure wall between the first line of weakness. In addition, each fragile line may have a curved shape rather than a straight line.

While the present invention allows for simple and user-friendly manual operation and convenient manufacture in the form described above, it provides an effective sealing of the contents of the welded container member after filling of the container and during storage and transportation of the container.

Claims (6)

A substantially tubular base portion having at least one welding rib formed on an outer circumferential surface of the base portion adjacent to one end of the shaft ends thereof and defining a penetrating injection passage, and means for mounting a cap on the base portion; A hermetic wall extending across and comprising an assembly of fragile lines is provided adjacent the other axial end of the base portion, the second position in a first position of the cap relative to the base portion to form at least one passage opening in the hermetic wall. Weld injection for attachment to the container member of the composite material, in particular the container member of the film-like composite material, which is adapted to be separated into at least one part under the influence of an external force acting on the closure wall by the cap during axial transfer of the furnace Member and cap. The weld injection member and cap of claim 1, wherein the removal ring is formed on the cap to prevent the cap from moving from the first position to the second position. The weld injection member and cap according to claim 1 or 2, wherein a spike-like protrusion is formed on the cap, the spike-like protrusion being engageable with the closure wall while the cap moves from the first position to the second position. 2. The assembly of claim 1, wherein the assembly of fragile lines includes second fragile lines that are separable from the first fragile lines in the form of a film hinge, the fragile lines being at least pivotable into the plane of the closure wall upon separation of the second fragile lines. A weld injection member and cap defining one or more closure wall portions. 5. The weld injecting member and cap as recited in claim 4, wherein the four triangular portions conforming to each other and having apex are defined by the weak lines. 5. The weld injection member and cap as recited in claim 4, wherein the one or more portions are defined by weak lines each having a substantially rectangular shape.