FR2835897A1 - Damper for tension jerks in a line such as a rope, cable or chain has portion of line rolled in a spiral inside elastically-deformable sleeve - Google Patents
Damper for tension jerks in a line such as a rope, cable or chain has portion of line rolled in a spiral inside elastically-deformable sleeve Download PDFInfo
- Publication number
- FR2835897A1 FR2835897A1 FR0201664A FR0201664A FR2835897A1 FR 2835897 A1 FR2835897 A1 FR 2835897A1 FR 0201664 A FR0201664 A FR 0201664A FR 0201664 A FR0201664 A FR 0201664A FR 2835897 A1 FR2835897 A1 FR 2835897A1
- Authority
- FR
- France
- Prior art keywords
- line
- link
- deformable material
- elastically deformable
- rope
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/14—Vibration-dampers; Shock-absorbers of cable support type, i.e. frictionally-engaged loop-forming cables
Abstract
Description
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Dispositif d'amortissement des acoups de tension sur un lien La présente invention concerne un dispositif d'amortissement des acoups de tension sur un lien tel qu'une corde, un câble, une chaîne, une sangle et similaire. The present invention relates to a device for damping tension headaches on a link such as a rope, a cable, a chain, a strap and the like.
Dans de nombreux domaines d'activités, on utilise des liens soit pour la fixation, soit pour la suspension, etc, d'objets par rapport à un support ou un autre objet du même type. In many fields of activity, links are used either for fixing or for hanging, etc., of objects in relation to a support or another object of the same type.
Ainsi, par exemple, dans le domaine nautique, les bateaux sont amarrés à un quai ou à un ponton, à l'aide d'un lien tel qu'une corde. On a pu se rendre compte que, lors d'une forte houle ou de marées, la tension exercée sur le lien par le bateau en mouvement provoquait des acoups pouvant être violents et entraînant des dommages. For example, in the nautical field, boats are moored to a quay or a pontoon, using a link such as a rope. We were able to realize that, during a strong swell or tides, the tension exerted on the link by the moving boat caused tinnitus which can be violent and causing damage.
Afin de pallier cet inconvénient, le but de la présente invention est de proposer un dispositif d'amortissement In order to overcome this drawback, the object of the present invention is to provide a damping device
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permettant d'éliminer ou au moins, de réduire les acoups résultant d'une tension dans un lien. allowing to eliminate or at least, to reduce the acoups resulting from a tension in a bond.
Ainsi, la présente invention a pour objet un dispositif d'amortissement des acoups de tension sur un lien tel qu'un câble, une corde, une sangle, une chaîne et similaire, caractérisé en ce qu'il est constitué d'une portion du lien enroulée sous forme d'une hélice, ladite portion étant enrobée par un matériau élastiquement déformable. Thus, the subject of the present invention is a device for damping tension headaches on a link such as a cable, a rope, a strap, a chain and the like, characterized in that it consists of a portion of the link wound in the form of a helix, said portion being coated with an elastically deformable material.
Ainsi, de manière avantageuse, une tension exercée sur un lien pourvu du dispositif selon l'invention entraîne la déformation dudit matériau élastiquement déformable ainsi que la déformation de l'hélice formée par le lien, ce qui permet un amortissement de la tension, évitant ainsi un acoup. Thus, advantageously, a tension exerted on a link provided with the device according to the invention causes the deformation of said elastically deformable material as well as the deformation of the propeller formed by the link, which allows a damping of the tension, thus avoiding an acoup.
De préférence, le matériau élastiquement déformable est du polyuréthane dont les propriétés telles que la dureté et/ou la section, permettent de définir la force du dispositif d'amortissement selon l'invention. Preferably, the elastically deformable material is polyurethane, the properties of which, such as hardness and / or cross-section, make it possible to define the strength of the damping device according to the invention.
Avantageusement, la résistance à la rupture du dispositif d'amortissement selon l'invention fonctionnant en traction est donnée par le lien. En effet, une fois que la portion enroulée du lien est complètement déroulée, on ne peut plus provoquer un allongement du dispositif d'amortissement, ce qui empêche tout risque de rupture dudit dispositif. Advantageously, the breaking strength of the damping device according to the invention operating in traction is given by the link. Indeed, once the wound portion of the link is fully unwound, one can no longer cause an elongation of the damping device, which prevents any risk of rupture of said device.
De ce fait, le dispositif d'amortissement selon l'invention peut être utilisé dans des applications où, auparavant on utilisait un dispositif d'amortissement fonctionnant uniquement en compression, pour des raisons évidentes de sécurité. Therefore, the damping device according to the invention can be used in applications where, previously, a damping device operating only in compression was used, for obvious safety reasons.
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La présente invention a également pour objet un procédé de fabrication du dispositif d'amortissement des acoups de tension sur un lien selon l'invention, caractérisé en ce qu'on enroule en hélice une portion du lien autour d'un noyau de matériau élastiquement déformable, puis on positionne l'ensemble, noyau pourvu du lien enroulé autour, dans un moule et on enrobe cet ensemble par du matériau élastiquement déformable. The present invention also relates to a method of manufacturing the device for damping tension headaches on a link according to the invention, characterized in that a portion of the link is wound helically around a core of elastically deformable material , then the assembly is positioned, core provided with the link wrapped around, in a mold and this assembly is coated with elastically deformable material.
De préférence, le noyau est tubulaire. Preferably, the core is tubular.
On décrira maintenant l'invention plus en détail en référence au dessin en annexe dans lequel la figure unique représente une vue en coupe longitudinale d'un dispositif d'amortissement selon l'invention. The invention will now be described in more detail with reference to the accompanying drawing in which the single figure shows a view in longitudinal section of a damping device according to the invention.
Le dispositif d'amortissement des acoups de tension sur un lien tel qu'une corde 1 selon l'invention est constitué d'une portion A de la corde 1 qui est enroulée sous forme d'hélice. The tension damping device on a link such as a rope 1 according to the invention consists of a portion A of the rope 1 which is wound in the form of a helix.
Les boucles de l'hélice sont enrobées par un matériau élastiquement déformable 2 tel que du polyuréthane. The propeller loops are coated with an elastically deformable material 2 such as polyurethane.
L'enrobage réalisé se présente sous la forme d'un manchon B entourant la portion en hélice de la corde 1. The coating produced is in the form of a sleeve B surrounding the helical portion of the cord 1.
De préférence, le lien 1 est d'abord enroulé en hélice autour d'un noyau, de préférence tubulaire, en matériau élastiquement déformable puis est enrobé au sein du matériau élastiquement déformable par moulage. Preferably, the link 1 is first wound in a helix around a core, preferably tubular, made of elastically deformable material and then is coated within the elastically deformable material by molding.
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Lorsqu'une tension est réalisée sur la corde 1, la portion en hélice A tend à s'allonger tandis que le manchon B de polyuréthane s'allonge également.
When tension is made on the cord 1, the helical portion A tends to elongate while the polyurethane sleeve B also elongates.
L'allongement est lié au rapport entre la longueur enroulée de la corde 1 (portion A) et la longueur nominale de ladite corde 1. The elongation is linked to the ratio between the wound length of the rope 1 (portion A) and the nominal length of said rope 1.
Une fois, la portion A de la corde 1 entièrement déroulée, le dispositif d'amortissement ne peut plus se déformer. Once, the portion A of the cord 1 fully unwound, the damping device can no longer deform.
En fonction des caractéristiques du polyuréthane utilisé telles que la dureté, la section, la densité, on peut obtenir une élongation maximale du polyuréthane. Depending on the characteristics of the polyurethane used such as hardness, section, density, it is possible to obtain a maximum elongation of the polyurethane.
Ainsi, pour 70 SHA, on obtient une élongation de 650%, pour 85 SHA de 600% et pour 90 SHA de 550%.Thus, for 70 SHA, an elongation of 650% is obtained, for 85 SHA of 600% and for 90 SHA of 550%.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0201664A FR2835897A1 (en) | 2002-02-11 | 2002-02-11 | Damper for tension jerks in a line such as a rope, cable or chain has portion of line rolled in a spiral inside elastically-deformable sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0201664A FR2835897A1 (en) | 2002-02-11 | 2002-02-11 | Damper for tension jerks in a line such as a rope, cable or chain has portion of line rolled in a spiral inside elastically-deformable sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2835897A1 true FR2835897A1 (en) | 2003-08-15 |
Family
ID=27620094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0201664A Pending FR2835897A1 (en) | 2002-02-11 | 2002-02-11 | Damper for tension jerks in a line such as a rope, cable or chain has portion of line rolled in a spiral inside elastically-deformable sleeve |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2835897A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007030848B3 (en) * | 2006-09-30 | 2008-02-07 | Martin Lepple | Jerk absorber for mooring e.g. rope, has chain link and/or shackle partially projecting at end of vibration compensator, where vibration compensator is deformable in loaded condition under blending of chain in form of wave and meander |
| WO2014113678A1 (en) * | 2013-01-17 | 2014-07-24 | Hendrickson Usa, L.L.C. | Mechanical stop for axle/suspension systems |
| JP2016095005A (en) * | 2014-11-17 | 2016-05-26 | トヨフレックス株式会社 | Impact absorption device |
-
2002
- 2002-02-11 FR FR0201664A patent/FR2835897A1/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007030848B3 (en) * | 2006-09-30 | 2008-02-07 | Martin Lepple | Jerk absorber for mooring e.g. rope, has chain link and/or shackle partially projecting at end of vibration compensator, where vibration compensator is deformable in loaded condition under blending of chain in form of wave and meander |
| WO2014113678A1 (en) * | 2013-01-17 | 2014-07-24 | Hendrickson Usa, L.L.C. | Mechanical stop for axle/suspension systems |
| US8851492B2 (en) | 2013-01-17 | 2014-10-07 | Hendrickson Usa, L.L.C. | Mechanical stop for axle/suspension systems |
| CN104918803A (en) * | 2013-01-17 | 2015-09-16 | 亨德里克森美国有限责任公司 | Mechanical stop for axle/suspension systems |
| EP2945811A4 (en) * | 2013-01-17 | 2016-08-24 | Hendrickson Usa Llc | Mechanical stop for axle/suspension systems |
| CN104918803B (en) * | 2013-01-17 | 2017-05-17 | 亨德里克森美国有限责任公司 | Mechanical stop for axle/suspension systems |
| JP2016095005A (en) * | 2014-11-17 | 2016-05-26 | トヨフレックス株式会社 | Impact absorption device |
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