DE2818007A1 - END CAP FOR PIPES, IN PARTICULAR FOR PIPES TO RECEIVE SHIPPING OR TRANSPORTED GOODS - Google Patents

Description

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ROLEX PAPER COMPANY LIMITED, Slough ,: England

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The invention "relates to an end closure for tubes, in particular for tubes for receiving goods to be dispatched or transported, like paper rolls etc.> in which the tube wall: is deformable at least at one end of the tube to the latter to close against falling out of the goods and to enter and. Spreading the material. To expose. ;

A known tube of this type, as indicated, for example, in British patent specification 995 778, has the disadvantage that the deformation must initially be made by machine and the tubes are sealed to the customer. stood "handed over" whereby opening the tube for. Bringing the shipping material is not easy and simple to accomplish, so that the user who processes a large number of tubes, significant inconvenience. "." -: ■ ".; - - .."., - ..; -, ". ■■" ---. '.--; ■ - "■ -.-.". "." ^: . ν:; -

The invention aims to create an end closure, which is simple and easy to close and open by hand is without him therefore in handling or storage the filled tube could open by itself.

809843/1

The invention relates to an end closure of the initially mentioned specified type, which is characterized according to a basic concept of the invention that in the wall of a Cardboard, plastic or the like tube near one or each tube end at least one slot or gap across one Part of the tube circumference is formed such that the wall strip between the slot or gap and the end face of the Tube between a first dimensionally stable shape, in which it corresponds essentially to the tube profile, and a second dimensionally stable shape in which it protrudes into the interior of the tube and closes the tube end, is movable.

According to another basic concept of the invention, an end closure of the type specified at the outset is characterized in that that in the wall of a tube apart from one or each tube end a pair of adjacent slots or Gap is formed over part of the tube circumference such that the wall strip between the two slots or splitting the pair between a first dimensionally stable shape in which substantially corresponds to the tubular profile, and a second forastike figure, in which he goes into the interior of the Tube protrudes and closes the tube, is movable. The movable wall strip is close to the one or located at the other end of the tube.

The closures according to the invention have the particular advantage that the first deformation of the wall strip can usually be done by hand; the tubes can be delivered open at one or both ends, that is, the movable wall strips at one or both ends can remain in the tubular shape so that the Users can simply fill the tubes and cap one or both ends by hand. The manufacturer needs thus only to cut the slots or gaps at the tube ends and at most at one end the one or the other

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Wall strips mechanically in the recessed second Deform shape. The tubes should be on both ends are supplied closed, the closure is easier to open than in the previously known constructions, although it is sufficiently strong and reliable to prevent accidental opening during handling, shipping or storage. The special design of the closure is also suitable for solidifying the tube and for supporting the products housed therein, which is particularly useful when the tube contains more massive and heavier objects instead of posters. So can the tube made of cardboard or the like be wound helically. she can have a circular or other round cross-section, and the end closure is suitably about one half an inch from the end of the tube, but it can be several inches further for very large diameter tubes be arranged inward.

With the new type of closure, the tube is always reusable, by pressing the wall strip (s) out of the round into the recessed form, the material introduced, e.g. paper, is retained in the tube while after Resetting the strip or strips, the material can be removed from the tube and new material can be introduced. ·

Preferably each closure comprises a plurality of slots or gaps or pairs of slits or gaps for the formation of inwardly and outwardly movable wall strips. These slots or gaps are preferably distributed symmetrically around the tubes. A particularly preferred embodiment has two immediately opposite slots or gaps or pairs of slits or gaps, the resulting wall strips being movable towards one another by being pressed in and the closure formed in this way has an essentially "8" shape in front view. In this training of the

β09843 / 1040

The moveable strips in the recessed part can be made up of several slits or pairs of slits. second Form either come into contact with its counterstrip or be kept at a distance from one another, or also partly touch and partly not touch.

An end closure according to the invention is preferably provided at each end of the tube.

For the tube, it is preferable to use a material that has a certain degree of flexibility and elasticity so that everyone can movable wall strips can be moved back and forth between the two specified end positions, the transition from one end position to the other takes place with a certain snap action and the strip in the end position a certain Has dimensional rigidity. A suitable material is cardboard or a similar material that is layered or inside and / or outside with sheet material such as paper, plastic or Metal foil can be coated. The closure according to the invention is particularly suitable for shipping tubes or inexpensive Containers that are quick and easy to manufacture and easy to use.

The invention also relates to a method for producing tubes, which in one embodiment thereby is characterized in that in the tube wall near one tube end a slot extending over part of the circumference or gap is formed and the wall strip between the slot or gap and the end face of the tube into the interior of the tube is deformed to form a dimensionally stable indentation which seals the tube end. According to this procedure are preferably, simultaneously or one after the other, several slots or gaps in the circumferential direction at intervals one behind the other formed, and the resulting at the end of the tube

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¥ and sealing strips to the indentations closing the tube end deformed. Terminations of this type can also be produced at both ends of the tubes at the same time.

The invention also provides a tool for implementation of the aforementioned method, which is characterized by a clamping device for the tube, a cutting device for forming at least one slot or gap over part of the tube circumference and a device for deforming of the resulting wall strip to form one that closes the tube Indentation.

The cutting device can have several knives or the like have, which at the same time have several slots or gaps in the circumferential direction be able to form with spacings one behind the other at the end of the tube, and the deformation device can accordingly comprise several members for deforming the resulting wall strips at the end of the tube, to recessed indentations. A such. The deformation member can conveniently perform a rectilinear reciprocating motion, generally radial to the tube and perpendicular to its axis. Two cutting stations, one for each tube end, can also be provided. Provided the deformation takes place during production, a deformation station can at one end or two stations, one at each end, depending on which one closure is on to be formed at one or each end of the tube. In another embodiment, only one cutting station provided and the tube be adjustable by a feed device in front of this cutting station, so that the latter first machined one end and then the other end of the tube; in this case a single deformation station can be used. provided and operated in such a way that it has a closure capable of forming at one or each end of the tube. The cutting station and a deforming device are useful adjustable so that they can be used for a wider range of tube lengths and diameters.

809843/1040

A second embodiment of the method and the Device, namely for the production of closures apart from one tube end or both tube ends from pairs Side by side slots or gaps essentially correspond to the arrangements discussed above, with the difference, of course, that they are set up for the formation of two adjacent slots or columns must be.

In the drawings, four exemplary embodiments of tubes with end closures according to the invention are illustrated.

According to FIG. 1, a cardboard tube 2 has at the visible end two diametrically opposed circumferential slots or gaps 4 in a plane, which extend over part of the Extend the tube circumference, so that between each slot and the end face of the tube a more or less wider Strip of the tube wall remains. The two wall strips 6 are deformable towards the inside of the tube, from one first dimensionally stable shape (shown dotted) in which they are matched in shape and profile of the tube, in a second dimensionally stable shape (shown in solid lines) in which they protrude into the interior of the tube with an indentation and thus effectively close it. In this embodiment have the recessed wall strips 6 of the tube with the non-deformed peripheral area has the shape of a keyhole or the number "8". To open the tube, the End strips 6 can simply be snapped outwardly from the recessed second shape into the first shape the transport or dispatch goods, such as rolled papers, to be introduced into the tube or removed from it. The same termination (not shown) may be provided at the other end of the tube.

809843/1040

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According to Flg. 2 has:... The tube a - ^ tolichen Endyer- conclusion "in which .gleiche.-3iö ^ e; .with ■ demselten-.Bezugszeiohen :: provided ■ In this, embodiment, are: ... .., deformed inwards so that they .berühren terminally-pure ,; "fen 6 of the tube wall in its recessed shape to each other _again; may be a same end closure at the other end of the tube is provided-to be _-..; : ■ -... ... ··. · ■., - .. _% - .., -. ".. .- ... .. [^ ,

According to FIG. 3, in the case of a similar end closure, the two end strips 6 or their deformations are, however, against each other. offset ^ that it is not tangential, but with certain surface areas. 8 touch; r. If necessary, the ;; formed strips eh 6 in the areas, 8 -connected to each other. "" ■ are, for example, by means of a binding agent, which is expedient in the - ^ or-. . _{: is} plotted into it, .. by brackets, etc.:; . · V,

The tubes provided in these three cases are typical Helically wound cardboard tubes of circular cross-section, the inside .or / and outside with different coatings can be provided, such as foil, printed labels or .. "-.-_ other decorative or protective layers. ·. -..--.

According to Fig. 4, in a spiral-wound cardboard tube, for example about 1 1/2 or 2 inches in diameter, there are a pair of parallel slots 4, 6 of the same length, which extend somewhat inwards over part (e.g. / 25/6) of the circumference extending from one end face of the tube, and diametrically opposite and congruent with another pair of identical slots 8, 10. The slots:. '>' 4 and 6 are about 1/2 inch from the face of the tube. Substantially the same pairs of slots, of which only slots 12 and 14 are visible in the drawing, are provided in the same manner at the other end of the tube, and each wall strip 20 between the parallel slots of a pair can be snapped inwardly from a form- ^; rigid tubular shape as at the tube end 22 in a dimensionally stable recessed shape or. Indentation, as it is dash-dotted> -. '..: 809843/1040; : - V

is shown at the tube end 24 to v / effectively close the tube. Once again, the finished closure, viewed from the end face, has an essentially figure-8 shape. On the inner surfaces the wall strips 20 can be coated in advance with a cold adhesive, so that the opposite Areas, if they come into contact during closure by deformation, a permanent or semi-permanent closure form.

The tubes according to the invention can be supplied with open closures and.z.B. at their end sections be provided with instructions as to how and where the closure is to be effected; this information can be attached if the slots are made in the tube wall.

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Claims (12)

Poientamvöllo Dr.-tng. Wilhelm MoM
Dipl-lag. \ i $! m · '} ΙΆύ Po.rkaiicJk> i3 2086 ROLSX PAPER COMPANY LIMITED, Slough, England End closure for pipes, in particular for receiving sand and goods to be transported, box dexa the pipe wall is deformable at least at one end of the pipe in order to close the latter against falling out of the goods and to expose them for bringing in and out the goods,
characterized in that in the tube wall (2) near one or each tube end at least one slot (4) or gap is formed over part of the tube circumference, such; that the wall strip (6) between ¹ , the Schiit ?. (4) or gap and the end face of the tube between a first dimensionally stable shape, in which it corresponds essentially to the tube profile, and a second foraste-like shape, in which it protrudes into the interior of the tube and closes the tube end. 2) End cap for tubes, especially to accommodate Shipping and transport goods in which the tube wall is deformable at least at one tube end in order to counteract the latter To close the falling out of the goods and to expose them for the introduction and removal of the goods, ORIGINAL IHSPi = CTT = D 8 09843/1040 2818ÜU7 characterized in that in the tube wall (2) apart from the tube end two side by side slots (4, 6) or gaps are formed which have a wall strip between them (20) at the distance from the tube end, between a first dimensionally stable shape. In which it is essentially the Tubular profile corresponds, and a second dimensionally stable shape in which it protrudes into the interior of the tube and closes the tube, is movable. 3) termination according to claim 2,
characterized in that the movable vanity strip (2p) is located near one end of the tube. 4) End closure according to claim 1 to 3> characterized in that it is formed by several slots odor columns (4) or pairs of slots (4, 6, 8, 10) or columns, which in the circumferential direction at a distance211 one behind the other in the tube wall are provided _} wob ?! each of the corresponding wall strips (6, 20) can be moved between a first and second dimensionally stable shape. 5) termination according to claim 4,
characterized in that two slots or gaps or two pairs of slots or gaps and the corresponding wall strips are directly opposite one another and the latter can be moved from their first to their second shape to one another, so that an end view "8 ⁿ -shaped closure is formed (Fig. 1). ORIGINAL 809843/1OiO 6) End closure according to claim 4 or 5> characterized in that the movable Waridungsstreifen touch each other in their second dimensionally stable shape. 7) End closure according to claim 1 to 6, characterized in that that slits or gaps are close to form closures are provided at each end of the tube " 8) Method of making a termination on tubes according to claim 1, characterized in that a slot or gap extending over part of the tube circumference is formed in the tube wall near one tube end and the Y / andimgs strip between the slot or gap χταά the end face of the tube is deformed inwardly to form a dimensionally stable indentation closing the tube ends will. 9) Method of making a tube stopper according to claim 2, characterized, that in the tube wall apart from the tube end a pair of extending over part of the tube circumference adjacent slots or gaps is formed and the wall strip between the slots or Columns of the pair is deformed inwardly to form a dimensionally stable indentation which closes the tube. 10) Method according to claim 8 or 9, characterized in that that several slots or gaps or several pairs of adjacent slots or gaps in the circumferential direction with intervals be trained one after the other. ____ P. (> 9 8 L 3 I 10 4 0 -BAD OR | Qijyj _AL ' 2818Q07 11) Procedure according to. Claim 9 or 10,
characterized in that wall strips forming closures are formed at the same time at both ends of the tube. 12) device for performing the method according to one of claims 8 to 11,
gkennzeicb.net through a clamping device for the tube, a cutting device for forming at least one slot or gap over part of the tube circumference and a device for deforming the resulting wall strips to each one closing the tube Indentation. 809843 / 104Q