EP0970913B1 - Lifting band - Google Patents
Lifting band Download PDFInfo
- Publication number
- EP0970913B1 EP0970913B1 EP99113302A EP99113302A EP0970913B1 EP 0970913 B1 EP0970913 B1 EP 0970913B1 EP 99113302 A EP99113302 A EP 99113302A EP 99113302 A EP99113302 A EP 99113302A EP 0970913 B1 EP0970913 B1 EP 0970913B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lifting
- fabric
- band
- strap
- band part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004744 fabric Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 3
- 229920002457 flexible plastic Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 13
- 230000009969 flowable effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/18—Band-type slings
Definitions
- the invention relates to a lifting belt for lifting and transporting loads, about boxes, pipes or the like.
- Bands are often coated with plastic used to protect the tape from cuts, wear, moisture or To protect pollution.
- Both the uncoated and the coated Lifting straps have the disadvantage that they have low inherent rigidity and are therefore difficult to handle in some situations. For example lifting straps often have to be pushed under loads, which difficulties due to their low inherent rigidity
- GB-A-1561193 is a double or hollow product Strap for hoists known, in the connection-free spaces a loose insert made of wires, bundles of fibers, strands or ropes is arranged, which serves to reinforce the strap.
- the object of the invention is to propose a lifting strap that is easier to handle is.
- the lifting strap then comprises a two-layer strap part, which, depending on the type the load to be lifted is designed to be more or less long. Between those an intermediate layer is formed from two layers of the fabric belts forming the belt part arranged flexible plastic material.
- This three-layer structure gives the lifting strap so much inherent rigidity that it can easily be pushed through a load and can be gripped from the other side of the load.
- the fabric tape is so flexible that it is wrapped around a load and with its ends, which are preferably designed as loops, in a crane hook can be hung. Because of their bending stiffness and kink stability the lifting straps can also be easily pushed through openings.
- the three-layer structure also ensures that the lifting straps are relatively wide can cantilever without kinking.
- the band part goes in on both sides of the Loops formed over loops.
- the strap part or the entire lifting strap is ring-shaped.
- the fabric belts are approximately in the form of two concentric, radially spaced from the intermediate layer Rings arranged.
- the intermediate layer is preferably made by pouring a flowable Plastic material between the fabric belts spaced apart in a mold receive.
- Polyurethane is preferably used as the plastic material. This material can be practically in the form of two flowable components Pour room temperature between the fabric belts. The liquid material can easily penetrate into the near-surface layers of the fabric straps. After this Hardening of the polyurethane becomes a firm bond between the intermediate layer and get the fabric straps.
- a lifting strap according to the invention has a band part 1, which is formed by two fabric belts 2, 3.
- the band part is ever of different lengths as required and goes in loops on both sides 4 about.
- the length of the intermediate layer 5 corresponds to the length of the Band member.
- the loops 4 are formed in that one of the two fabric belts, for example, the fabric belt 3 is extended, with its end 6 on the fabric belt 2 rests and is sewn to it.
- an endless, closed ring Fabric belt is used for the production of the fabric tape of FIG.
- Fig. 2 shows a lifting strap
- the strap part 1a has no loops, but that is closed in a ring. It is composed of an outer fabric belt 7 and an inner fabric belt 8. Both belts are spaced radially arranged to each other and with each other via a polyurethane intermediate layer 5a connected.
- An annular lifting strap can e.g. used in tube loading become. With this type of loading, a bundle of tubes is made up of two ring-shaped ones Includes lifting straps. The rings are placed in a crane hook by a stopper hooked. The stop must be on the top of the tube bundle stand, which carries a high risk of accidents. This dangerous activity is not necessary with a lifting strap ring with an elastic intermediate layer.
- the lifting straps Due to the three-layer structure, the lifting straps get one Inherent rigidity, that they protrude in an arc shape over the bundle to be raised so that a crane operator can lift the crane hook without the help of a stopper can be hooked into the lifting sling and later released again. If several bundles lie on top of each other, the lifting strap rings fit the bundle shape therefore do not take up any space and do not cause any damage on the pipes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Belt Conveyors (AREA)
- Moulding By Coating Moulds (AREA)
Description
Die Erfindung betrifft ein Hebeband zum Anheben und Transportieren von Lasten, etwa von Kisten, Rohren od.dgl. Vielfach werden mit Kunststoff beschichtete Bänder eingesetzt, um das Bandgewebe vor Schnitten, Verschleiss, Feuchtigkeit oder Verschmutzung zu schützen. Sowohl die unbeschichteten als auch die beschichteten Hebebänder haben den Nachteil, dass sie eine geringe Eigensteifigkeit aufweisen und dadurch in manchen Situationen nur schwer handhabbar sind. Beispielsweise müssen Hebebänder oft unter Lasten hindurchschoben werden, was aufgrund ihrer geringen Eigensteifigkeit Schwierigkeiten bereitetThe invention relates to a lifting belt for lifting and transporting loads, about boxes, pipes or the like. Bands are often coated with plastic used to protect the tape from cuts, wear, moisture or To protect pollution. Both the uncoated and the coated Lifting straps have the disadvantage that they have low inherent rigidity and are therefore difficult to handle in some situations. For example lifting straps often have to be pushed under loads, which difficulties due to their low inherent rigidity
Aus der GB-A-1561193 ist ein nach Art einer Doppel- oder Hohlware ausgebildeter Tragriemen für Hebezeuge bekannt, bei dem in den verbindungsfreien Zwischenräumen eine lose Einlage aus Drähten, Feserbündeln, Litzen oder Seilen angeordnet ist, die der Verstärkung des Tragriemens dient.GB-A-1561193 is a double or hollow product Strap for hoists known, in the connection-free spaces a loose insert made of wires, bundles of fibers, strands or ropes is arranged, which serves to reinforce the strap.
Aufgabe der Erfindung ist es, ein Hebeband vorzuschlagen, das leichter handhabbar ist.The object of the invention is to propose a lifting strap that is easier to handle is.
Diese Aufgabe wird durch ein Hebeband mit den Merkmalen des Anspruches 1 gelöst. Danach umfasst das Hebeband ein zweilagiges Bandteil, das je nach Art der zu hebenden Last mehr oder weniger lang ausgestaltet ist. Zwischen den die zwei Lagen des Bandteils bildenden Gewebegurten ist eine Zwischenschicht aus flexiblem Kunststoffmaterial angeordnet. Dieser dreischichtige Aufbau verleiht dem Hebeband so viel Eigensteifigkeit, dass es leicht durch eine Last hindurchgeschoben und von der anderen Seite der Last gegriffen werden kann. Gleichzeitig ist das Gewebeband aber so flexibel, dass es um eine Last herumgeschlungen und mit seinem vorzugsweise als Schlaufen ausgebildeten Enden in einem Kranhaken eingehängt werden kann. Aufgrund ihrer Biegesteifigkeit und Knickstabilität können die Hebebänder auch leicht durch Öffnungen hindurchgeschoben werden. Der dreischichtige Aufbau gewährleistet auch, dass die Hebebänder relativ weit auskragen können ohne abzuknicken. This object is achieved by a lifting strap with the features of claim 1 solved. The lifting strap then comprises a two-layer strap part, which, depending on the type the load to be lifted is designed to be more or less long. Between those an intermediate layer is formed from two layers of the fabric belts forming the belt part arranged flexible plastic material. This three-layer structure gives the lifting strap so much inherent rigidity that it can easily be pushed through a load and can be gripped from the other side of the load. simultaneously the fabric tape is so flexible that it is wrapped around a load and with its ends, which are preferably designed as loops, in a crane hook can be hung. Because of their bending stiffness and kink stability the lifting straps can also be easily pushed through openings. The three-layer structure also ensures that the lifting straps are relatively wide can cantilever without kinking.
Bei einer bevorzugten Ausführungsform geht das Bandteil beidseitig in von den Gewebegurten gebildete Schlaufen über. Bei einer weiteren vorteilhaften Ausgestaltung ist das Bandteil bzw. das gesamte Hebeband ringförmig. Die Gewebegurte sind etwa in Form zweier konzentrischer, von der Zwischenschicht radial beabstandeter Ringe angeordnet.In a preferred embodiment, the band part goes in on both sides of the Loops formed over loops. In a further advantageous embodiment the strap part or the entire lifting strap is ring-shaped. The fabric belts are approximately in the form of two concentric, radially spaced from the intermediate layer Rings arranged.
Die Zwischenschicht wird vorzugsweise durch Eingießen eines fließfähigen Kunststoffmaterials zwischen die in eine Form auf Abstand gehaltenen Gewebegurte erhalten. Als Kunststoffmaterial wird vorzugsweise Polyurethan verwendet. Dieses Material läßt sich in Form zweier fließfähiger Komponenten praktisch bei Raumtemperatur zwischen die Gewebegurte gießen. Das flüssige Material kann leicht in die oberflächennahen Schichten der Gewebegurte eindringen. Nach dem Erhärten des Polyurethans wird eine feste Verbindung zwischen der Zwischenschicht und den Gewebegurten erhalten.The intermediate layer is preferably made by pouring a flowable Plastic material between the fabric belts spaced apart in a mold receive. Polyurethane is preferably used as the plastic material. This material can be practically in the form of two flowable components Pour room temperature between the fabric belts. The liquid material can easily penetrate into the near-surface layers of the fabric straps. After this Hardening of the polyurethane becomes a firm bond between the intermediate layer and get the fabric straps.
Die Erfindung wird nun anhand der in den beigefügten Zeichnungen dargestellten Ausführungsbeispiele näher erläutert. Es zeigen:
- Fig. 1
- ein Hebeband mit Schlaufen,
- Fig. 2
- ein ringförmiges Hebeband, und
- Fig. 3
- einen Querschnitt entsprechend der Linie III-III in Fig. 1 und 2.
- Fig. 1
- a lifting strap with loops,
- Fig. 2
- an annular lifting strap, and
- Fig. 3
- a cross-section along the line III-III in Fig. 1 and 2nd
Wie den Zeichnungen zu entnehmen ist, weist ein erfindungsgemäßes Hebeband
ein Bandteil 1 auf, das von zwei Gewebegurten 2,3 gebildet ist. Das Bandteil ist je
nach Bedarf unterschiedlich lang ausgebildet und geht beidseitig in Schlaufen 4
über. Zwischen den beiden Gewebegurten 2,3 ist eine Zwischenschicht 5 aus Polyurethan
angeordnet. Die Länge der Zwischenschicht 5 entspricht der Länge des
Bandteiles. Die Schlaufen 4 sind dadurch gebildet, dass einer der beiden Gewebegurte,
beispielsweise der Gewebegurt 3, verlängert ist, wobei sein Ende 6 auf
dem Gewebegurt 2 aufliegt und mit diesem vernäht ist. Denkbar ist jedoch auch,
dass zur Herstellung des Gewebebands nach Fig. 1 ein endloser, ringförmig geschlossener
Gewebegurt verwendet wird. As can be seen from the drawings, a lifting strap according to the invention has
a band part 1, which is formed by two
Fig. 2 zeigt ein Hebeband, dessen Bandteil 1a keine Schlaufen aufweist, sondern
das ringförmig geschlossen ist. Es setzt sich zusammen aus einem äußeren Gewebegurt
7 und einem inneren Gewebegurt 8. Beide Gurte sind mit Radialabstand
zueinander angeordnet und über eine Polyurethan-Zwischenschicht 5a miteinander
verbunden. Ein ringförmiges Hebeband kann z.B. in der Rohrverladung eingesetzt
werden. Bei dieser Verladeart wird ein Bündel Rohre von zwei ringförmigen
Hebebändem umfasst. Die Ringe werden von einem Anschläger in einen Kranhaken
eingehängt. Der Anschläger muss dabei auf der Oberseite des Rohrbündels
stehen, was eine hohe Unfallgefahr in sich birgt. Diese gefahrenträchtige Tätigkeit
ist mit einem Hebeband-Ring mit einer elastischen Zwischenschicht nicht erforderlich.
Durch den dreischichtigen Aufbau erhalten die Hebebänder eine solche
Eigensteifigkeit, dass sie etwa bogenförmig über das anzuhebende Bündel hinausstehen,
so dass ein Kranführer den Kranhaken auch ohne die Hilfe eines Anschlägers
in das Hebeband einhängen und später auch wieder ausklinken kann.
Liegen mehrere Bündel übereinander, passen sich die Hebeband-Ringe der Bündelform
an, benötigen somit keinen Platz und verursachen auch keine Beschädigungen
an den Rohren. Fig. 2 shows a lifting strap, the strap part 1a has no loops, but
that is closed in a ring. It is composed of an outer fabric belt
7 and an inner fabric belt 8. Both belts are spaced radially
arranged to each other and with each other via a polyurethane
- 11
- Bandteilband part
- 22
- GewebegurtWoven
- 33
- GewebegurtWoven
- 44
- Schlaufeloop
- 55
- Zwischenschichtinterlayer
- 66
- EndeThe End
- 77
- äusserer Gewebegurtouter fabric strap
- 88th
- innerer Gewebegurtinner fabric strap
Claims (5)
- Lifting band with a two-ply band part (1) for wrapping around a load and lifting it, characterized in that an interlayer (5) of flexible plastics material is arranged between the fabric belts (2, 3) forming the two plies of the band part (1) and is connected to these plies of the band part (1).
- Lifting band according to Claim 1, characterized in that the band part goes over on both sides into loops (4) formed by the fabric belts (2, 3).
- Lifting band according to Claim 1, characterized in that the band part (1a) is in the form of a ring.
- Lifting band according to one of Claims 1 to 3, characterized in that the interlayer (5) is obtained by pouring the free-flowing plastics material between the fabric belts (2, 3) kept apart in a mould.
- Lifting band according to one of Claims 1 to 4, characterized in that the plastics material is polyurethane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19830920 | 1998-07-10 | ||
| DE19830920 | 1998-07-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0970913A2 EP0970913A2 (en) | 2000-01-12 |
| EP0970913A3 EP0970913A3 (en) | 2002-04-10 |
| EP0970913B1 true EP0970913B1 (en) | 2004-10-06 |
Family
ID=7873603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99113302A Expired - Lifetime EP0970913B1 (en) | 1998-07-10 | 1999-07-09 | Lifting band |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0970913B1 (en) |
| DE (1) | DE59910699D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3498654A1 (en) | 2017-12-13 | 2019-06-19 | SpanSet secutex Sicherheitstechnik GmbH | Sling |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4200325A (en) * | 1975-11-05 | 1980-04-29 | Buffalo Weaving And Belting Co. | Synthetic organic polymeric plastic sling protected by vulcanized or cured elastomeric laminate at load contacting area thereof |
| DE2635879C2 (en) * | 1976-08-10 | 1978-09-21 | Hanfwolf Wolf & Co, 4800 Bielefeld | Carrying straps for hoists |
| DE3130469C2 (en) * | 1981-07-23 | 1983-05-11 | Heinz 4010 Hilden Franke | Flexible support element in the form of a belt, a rope or the like. |
| DE8304806U1 (en) * | 1983-02-22 | 1983-10-27 | Spanset Inter AG, 4002 Basel | ROUND SLING |
| US4850629A (en) * | 1988-02-04 | 1989-07-25 | St Germain Dennis | Multiple path sling construction |
-
1999
- 1999-07-09 EP EP99113302A patent/EP0970913B1/en not_active Expired - Lifetime
- 1999-07-09 DE DE59910699T patent/DE59910699D1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3498654A1 (en) | 2017-12-13 | 2019-06-19 | SpanSet secutex Sicherheitstechnik GmbH | Sling |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59910699D1 (en) | 2004-11-11 |
| EP0970913A2 (en) | 2000-01-12 |
| EP0970913A3 (en) | 2002-04-10 |
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