DK146090B

DK146090B - PROCEDURE AND TOOL SET FOR BAGS, SPECIAL PAPER BAGS

Info

Publication number: DK146090B
Application number: DK024180AA
Authority: DK
Inventors: Leif Gahlin
Original assignee: Stroemsnaes Bruk Ab
Priority date: 1979-02-05
Filing date: 1980-01-21
Publication date: 1983-06-27
Also published as: GB2045067B; BE880689A; NO151887C; FI65048C; NL7909305A; GB2045067A; DK146090C; CH645312A5; FI65048B; FR2447873A1; FR2447873B1; NO151887B; FI800083A; SE7900983L; DK24180A; NO800273L; DE2950282A1

Description

i 146090in 146090

Opfindelsen angår en fremgangsmåde til løftning af sække, særligt papirsække, ved hvilken den fyldte sæks åbningsende udstrækkes og sammenrulles, hvorefter den fyldte sæk anbringes i og løftes ved hjælp af et bæreredskab, som har 5 et opadrettet spor, hvori sækkens åbningsende indføres. Opfindelsen angår endvidere et redskabssæt til udøvelse af fremgangsmåden.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method of lifting sacks, particularly paper bags, in which the opening end of the filled bag is extended and rolled, after which the filled bag is inserted and lifted by means of a carrier having an upwardly groove into which the opening end of the bag is inserted. The invention further relates to a tool set for carrying out the method.

Fra fransk patentskrift nr. 1.528.071 er det kendt at ombøje en poses åbningsende og indføre den ombøjede ende i et 10 spor i et bæreredskab, således at posens åbningsende sidder let i spænd. Dette redskab er dog kun velegnet til små poser uden større belastninger og vil være helt uanvendeligt til storsække med en vægt på flere hundrede kilo, endog op til ca. 1,5 ton, idet åbningsenden vil glide ud af sporet, 15 hvor den kun sidder i et ganske løst spænd.From French Patent Specification No. 1,528,071, it is known to bend the opening end of a bag and insert the bent end into a groove in a carrier so that the opening end of the bag sits slightly in tension. However, this tool is only suitable for small bags without major loads and will be completely useless for large bags weighing several hundred kilos, even up to approx. 1.5 tons, the opening end will slide out of the groove, 15 where it sits only in a quite loose span.

Formålet med opfindelsen er at anvise en enkel fremgangsmåde og enkle redskaber til håndtering af storsække, især store, tunge papirsække, således at disse kan løftes og transporteres på pålidelig måde uden risiko for, at sæk-20 kens åbningsende glider ud af bæreredskabet, eller at sækkematerialet brister samtidigt med, at sækkenes fulde styrke bedre kan udnyttes.The object of the invention is to provide a simple method and simple tools for handling large sacks, especially large, heavy paper bags, so that they can be lifted and transported reliably without risk of the bag's opening end slipping out of the carrier or the sacking material bursts at the same time as the full strength of the bags can be better utilized.

Fremgangsmåden ifølge opfindelsen er ejendommelig ved, at den fyldte sæks udstrakte åbningsende, før den anbringes i 25 redskabet, bringes til at strække sig mindst 1,5 omgange rundt cm en scm hjælperedskab tjenestegørende afstivningsstrimmel, der har en længde, der omtrent er lig med bredden af den fyldte sæk, og at afstivningsstrimmelen og den rundt omkring afstivningsstrimmelen sammenrullede åbningsende af 30 sækken giyes en sådan tykkelse, at det opadrettede spor i bæreredskabet ved nedtrædning eller nedstopning af den omkring afstivningsstrimmelen sammenrullede åbningsende i hovedsagen udfyldes. Derved opstår en sådan spænding ·" 146090 2 mellem bæreredskabets spor og den sammenrullede åbningsende, at trækket fra den fyldte sæk ikke kan rykke åbningsenden ud af bæreredskabets spor samtidigt med, at påvirkningerne på sækkematerialet bliver fordelt over en større bredde af 5 sækkematerialet.The method according to the invention is characterized in that the extended opening end of the filled bag, before being placed in the tool, is caused to extend at least 1.5 revolutions around a scm auxiliary serving stripping strip having a length approximately equal to the width. of the filled bag, and that the stiffening strip and the opening end of the bag, rolled around the stiffening strip, are provided to such a thickness that the upwardly groove in the carrier tool is filled up when the downstroke strip is pulled down or stuffed down. Thereby, such a tension arises between the carrier's groove and the rolled-up opening end that the pull from the filled bag cannot push the opening end out of the carrier's groove at the same time that the impacts on the sack material are distributed over a greater width of the sack material.

Ifølge opfindelsen bør bæreredskabet, når det udformes som en U-profil, være omtrent lige så langt som afstivningsstrimmelen, således at det U-formede bæreredskab og afstivningsstrimmelen samvirker omtrent i hele den fyldte sæks 10 bredde.According to the invention, when carried as a U-profile, the carrying tool should be approximately as long as the stiffening strip, so that the U-shaped carrying tool and the stiffening strip interact approximately throughout the width of the filled bag 10.

Det er endvidere fordelagtigt, at afstivningsstrimmelen udformes noget bredere end dybden af det i bæreredskabet udformede spor, således at nedstopningen af den sammenrullede åbningsende lettes.Further, it is advantageous for the stiffening strip to be formed somewhat wider than the depth of the groove formed in the carrier, so that the cushioning of the rolled-up opening end is facilitated.

15 Et redskabssæt til udøvelse af fremgangsmåden og af den i krav 4's indledning angivne art er ejendommelig ved det krav 4's kendetegnende del angivne. Herved opnås et redskabssæt, der er velegnet til udøvelse af fremgangsmåden ifølge krav 1, 2 eller 3, eftersom udformningen af redskabssættet sikrer, 2Ό at sækkens åbningsende kan fastholdes i bæreredskabets spor.A tool set for carrying out the method and of the nature specified in the preamble of claim 4 is peculiar to the characterizing part of claim 4. Hereby is obtained a tool set suitable for carrying out the method according to claim 1, 2 or 3, since the design of the tool set ensures that the opening end of the bag can be retained in the groove of the carrier.

Opfindelsen skal i det følgende beskrives nærmere under henvisning til tegningen, hvor fig. 1 viser en fyldt sæk, hvor sækkens åbning er strakt ud set i perspektiv, 25 fig. 2 den udstrakte og omkring en afstivningsstrimmel rullede åbningsende på en sæk set fra enden, fig. 3 den oprullede åbningsende set i perspektiv, 146090 3 fig. 4 den øverste del af en sæk, efter at den forseglede åbningsende er bøjet ned langs sækkens sider, fig. 5 et bæreredskab set i perspektiv, fig. 6 et løfteorgan sammenkoblet med den fyldte sæk og 5 fig. 7 et snit langs linien VII-VII i fig. 6.The invention will now be described in more detail with reference to the drawing, in which: FIG. 1 is a perspective view of a filled bag in which the opening of the bag is stretched; FIG. 2 shows the opening and rolled open ends of a sack on a sack from the end, FIG. 3 is a perspective view of the rolled open end, FIG. 4 shows the upper part of a bag after the sealed opening end is bent down along the sides of the bag; FIG. 5 is a perspective view of a carrier, FIG. 6 is a lifting member coupled to the filled bag; and FIG. 7 is a section along line VII-VII of FIG. 6th

Således som det fremgår af fig. 1, skal man efter fyldningen af sækken, som i dette tilfælde er en papirsæk, strække den fyldte sæks 10 åbningsende 11 ud og lægge en afstivningsstrimmel 12 mod åbningsenden. Afstivningsstrimmelen 12 kan være 10 en strimmel f.eks. af en fiberplade. Efter udstrækningen rulles åbningsenden 11 mindst 1 1/2 omdrejning rundt om afstivningsstrimmelen 12, således som det er vist i fig. 2. I fig. 3 ses, at åbningsenden 11, der er rullet rundt om afstivningsstrimmelen 12, fastgøres i sammenrullet tilstand P5 ved hjælp af hæfteklemmer 13. Ved det viste udførelseseksempel er disse hæfteklemmer anbragt uden for afstivningsstrimmelen, men de kunne ligeledes anbringes tværs igennem denne.As shown in FIG. 1, after filling the bag, which in this case is a paper bag, one has to extend the opening end 11 of the filled bag 10 and place a stiffening strip 12 against the opening end. The stiffening strip 12 may be a strip e.g. of a fiberboard. After the extension, the opening end 11 is rolled at least 1 1/2 turns around the stiffening strip 12, as shown in FIG. 2. In FIG. 3 it can be seen that the opening end 11, which is rolled around the stiffening strip 12, is fastened in rolled state P5 by staples 13. In the illustrated embodiment, these staples are arranged outside the stiffening strip, but they could also be placed across it.

Afstivningsstrimmelen 12 har,således som det fremgår af 20 fig. 1, omtrent samme længde som den fyldte sæks bredde. Årsagen til dette er, at man ved lagring og transport af den fyldte sæk skal have mulighed for at bøje åbningsendens yderender ned langs den fyldte sæks sider til fiksering imod disse, f.eks. ved hjælp af et klisterbånd 14, således som 25 vist i fig. 4.The stiffening strip 12, as shown in FIG. 1, about the same length as the width of the filled bag. The reason for this is that when storing and transporting the filled bag, it must be possible to bend the outer ends of the opening end down along the sides of the filled bag for fixation against them, e.g. by means of an adhesive tape 14, such as 25 shown in FIG. 4th

I fig. 5 ses et bæreredskab 15. Dette bæreredskab har ved det viste udførelseseksempel form som en U-profil 16 med et opadrettet spor 17. På U-profilens ene ben er fastgjort en bærebøjle 18. Sporet 17 har fortrinsvis en noget mindre dybde end 30 bredden af afstivningsstrimmelen 12. Herved kan afstivningsstrimmelen og den der omkring rullede åbningsende 11 på sæk-In FIG. 5 shows a carrier 15. In the illustrated embodiment, this carrier is in the form of a U-profile 16 with an upwardly directed groove 17. On one leg of the U-profile is mounted a carrier 18. The groove 17 preferably has a somewhat less depth than 30 width of the stiffening strip 12. Hereby, the stiffening strip and the roll-around opening end 11 of the bag can be

Claims

146090 can be effectively pressed down into the groove 17 and locked in this position when the carrier tool 15 as shown in FIG. 6 and FIG. 7 is used to carry the bag. When the bag is to be lifted by the carrier, the opening end 11 of the stiffening strip 12 is rolled down into the upwardly directed groove 17, thereby effectively pulling the opening end down into the groove and retaining in this groove during the lifting process. To enable effective interlocking, the groove 17 preferably has only a slightly greater width than the thickness of the stiffening strip 12 and the rolled opening end 11 of the bag 10. Carriers of the kind described in the introduction have heretofore been used only successfully for light bags. eg shopping bags with a load of a few kilos. By lifting heavy 15 sacks of paper, it was found, with the method and the tools, that according to the invention it is possible to lift 600 kg with a heavy sack, which was normally only used up to approx. 200 kg. The carrying tools are very cheap to manufacture, easy to handle and have a small height, since they do not really need to be much higher than the U-profile. The stiffening strips utilized are also inexpensive, as they may consist of ordinary plate-shaped fiber material in wood or plastic. Patent claims.

A method of lifting sacks, in particular paper sacks, in which the opening end (11) of the filled bag is extended and rolled, after which the filled bag (10) is placed in and lifted by means of a carrying tool (15) having an upward direction. groove (17), in which the opening end (11) of the bag is inserted, 30. characterized in that the extended opening end (11) of the filled bag (10) before being placed in the implement (15) is caused to extend at least 1.5 laps around a stiffening strip (12) serving as an auxiliary tool having a length approximately equal to the width of the filled bag, and the stiffening strip and the opening end (11) of the bag rolled around the stiffening strip being given such a thickness, that the upward groove (17) of the carrier tool (15) is completed by stepping down or stuffing the opening end (11) rolled around the stiffening strip in the main case.

Method according to claim 1, in which the carrier tool (15) is formed as a U-profile (16), characterized in that the U-profile (16) is formed approximately as long as the stiffening strip (12).

Method according to claim 1 or 2, characterized in that the stiffening strip (12) is formed somewhat wider than the depth of the groove (17) formed in the carrier (15).

An implement kit for carrying out the method according to claim 1, 2 or 3, comprising an auxiliary tool (12) for application to the bag (10) and a carrier tool (15) for the bag, the carrier tool (15) having an upwardly directed groove (17) , wherein the extended and coiled opening end of the bag is adapted to be pulled or stopped by the bag's lifting means, characterized in that the auxiliary tool consists of a stiffening strip (12) which is intended to roll up at least 1.5 circumferences of the extended opening end (11) of the filled bag, and that the length of the stiffening strip is approximately equal to the width of the filled bag, and that its thickness along with the thickness of the bag wound wound around the support strip is substantially equal to the width of the upwardly extending groove of the carrier ( 17).

Tool set according to claim 4, in which the carrier tool (15) has the shape of a U-profile (16), characterized in that the U-profile (16) has approximately the same length as the stiffening strip (12).