FR2868408A1 - Pulley for deviating cables and belts in ship, has body receiving two sets of sheave wheels that are arranged such that they are tangential to circular arc, where wheels rotate around axis - Google Patents

Pulley for deviating cables and belts in ship, has body receiving two sets of sheave wheels that are arranged such that they are tangential to circular arc, where wheels rotate around axis Download PDF

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Publication number
FR2868408A1
FR2868408A1 FR0403407A FR0403407A FR2868408A1 FR 2868408 A1 FR2868408 A1 FR 2868408A1 FR 0403407 A FR0403407 A FR 0403407A FR 0403407 A FR0403407 A FR 0403407A FR 2868408 A1 FR2868408 A1 FR 2868408A1
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FR
France
Prior art keywords
wheels
pulley
belts
cables
sheaves
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
Application number
FR0403407A
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French (fr)
Inventor
Jean Jacques Cocagne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR0403407A priority Critical patent/FR2868408A1/en
Publication of FR2868408A1 publication Critical patent/FR2868408A1/en
Pending legal-status Critical Current

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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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/18—Means for guiding or supporting belts, ropes, or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The pulley (1) has a body receiving two sets of sheave wheels (2) that are arranged, such that they are tangential to a circular arc, where wheels rotate around an axis. The wheels deviate respective cables (3) or belts.

Description

La présente invention concerne des poulies, appareils qui servent à dévierThe present invention relates to pulleys, devices which serve to deflect

des câbles, ou des courroies selon un rayon.  cables, or belts according to a radius.

Les poulies sont composées d'un ou plusieurs réas, élément circulaire tournant autour d'un axe. Le rayon de courbure de la déviation est celui du réa; l'angle de déviation étant déterminé par le secteur angulaire au cours duquel le câble ou la courroie restent en contact avec le réa. Le diamètre du réa influe sur son moment d'inertie et détermine les dimensions de la poulie.  The pulleys consist of one or more sheaves, circular element rotating about an axis. The radius of curvature of the deviation is that of the sheave; the deflection angle being determined by the angular sector in which the cable or belt remains in contact with the sheave. The diameter of the sheave affects its moment of inertia and determines the dimensions of the pulley.

Certains assemblages de poulies nécessitent l'emploi de réa de grand diamètre ce qui présente des inconvénients d'inertie ou d'encombrement.  Some pulley assemblies require the use of large diameter sheaves which has disadvantages of inertia or bulk.

Les poulies selon l'invention permettent de réduire ces inconvénients. La déviation du câble ou de la courroie est effectuée par plusieurs réas, pas nécessairement identiques entre eux, placés de manière à tangenter une courbe, sans inflexion, qui peut être un arc de cercle. Ces réas ne sont installés que sur un secteur angulaire restreint correspondant à celui recherché. La déviation dans les poulies selon l'invention s'effectue de manière progressive, d'un réa à l'autre. Ainsi réalisées, les poulies selon l'invention présentent un moment d'inertie moindre et un encombrement réduit.  The pulleys according to the invention make it possible to reduce these disadvantages. The deflection of the cable or belt is performed by several sheaves, not necessarily identical to each other, placed so as to tangent a curve, without inflection, which may be an arc of a circle. These sheaves are installed only on a restricted angular sector corresponding to that sought. The deflection in the pulleys according to the invention is carried out gradually, from one sheave to the other. Thus produced, the pulleys according to the invention have a lower moment of inertia and reduced size.

La figure 1 représente, en coupe, une poulie selon l'invention.  Figure 1 shows, in section, a pulley according to the invention.

Le corps de la poulie (1) reçoit des réas (2) placés de telle sorte qu'ils tangentent un arc de cercle. La déviation du câble (3) ou de la courroie se fait progressivement 20 au contact des réas.  The body of the pulley (1) receives sheaves (2) placed so that they tangent an arc. The deviation of the cable (3) or the belt is progressively made 20 in contact with the sheaves.

La figure 2 représente une variante de poulie selon l'invention et destinée à dévier deux câbles.  Figure 2 shows a pulley variant according to the invention and intended to deflect two cables.

Le corps de la poulie (1) reçoit une première rangée de réas (2) disposée selon une courbe sans inflexion, qui dévient le premier câble (3). Une deuxième rangée de réas (2) est disposée selon une courbe sans inflexion pour dévier le deuxième câble (4) Selon une forme de réalisation préférentielle, les poulies selon l'invention peu-vent être réalisées en matériaux composites.  The body of the pulley (1) receives a first row of sheaves (2) arranged in a curve without inflection, which deflects the first cable (3). A second row of sheaves (2) is arranged in a curve without inflection to deflect the second cable (4) According to a preferred embodiment, the pulleys according to the invention can be made of composite materials.

A titre d'exemple, pour dévier un câble selon un arc de cercle de diamètre 120 millimètres et 180 degrés, on placera sept réas d'un diamètre unitaire de 20 millimètres 30 de telle sorte que leur périphérie tangente un demi cercle de diamètre 120 millimètres.  By way of example, to deflect a cable along a circular arc of diameter 120 millimeters and 180 degrees, seven sheaves with a unit diameter of 20 millimeters 30 will be placed so that their periphery tangents a half circle of diameter 120 millimeters. .

Les poulies selon l'invention sont particulièrement destinées à la déviation des câbles ou courroies, en particulier sur des navires. -2 -  The pulleys according to the invention are particularly intended for the deflection of cables or belts, in particular on ships. -2 -

Claims (5)

REVENDICATIONS 1) Poulies caractérisées en ce que la déviation est effectuée par plusieurs réas (2) placés de manière à tangenter une courbe sans inflexion.  1) Pulleys characterized in that the deflection is performed by several sheaves (2) placed so as to tangentially curve without inflection. 2) Poulies selon la revendication 1 caractérisées par le fait que la courbe tan- gentant les réas est un arc de cercle et que les réas (2) sont identiques.  2) Pulleys according to claim 1 characterized in that the tangent curve the sheaves is an arc and the sheaves (2) are identical. 3) Poulies selon la revendication 1 caractérisées par le fait que la courbe tan- gentant les réas est un arc de cercle et que les réas (2) sont différents.  3) Pulleys according to claim 1 characterized in that the tangent curve the sheaves is an arc and the sheaves (2) are different. 4) Poulies selon la revendication 1 caractérisées par le fait que la courbe tangentant les réas est sans inflexion et que les réas (2) sont identiques  4) Pulleys according to claim 1 characterized in that the tangent curve the sheaves is without inflection and sheaves (2) are identical 5) Poulies selon la revendication 1 caractérisées par le fait que la courbe tangentant les réas est sans inflexion et que les réas (2) sont différents.5) Pulleys according to claim 1 characterized in that the curve tangent sheaves is without inflection and sheaves (2) are different.
FR0403407A 2004-04-01 2004-04-01 Pulley for deviating cables and belts in ship, has body receiving two sets of sheave wheels that are arranged such that they are tangential to circular arc, where wheels rotate around axis Pending FR2868408A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0403407A FR2868408A1 (en) 2004-04-01 2004-04-01 Pulley for deviating cables and belts in ship, has body receiving two sets of sheave wheels that are arranged such that they are tangential to circular arc, where wheels rotate around axis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0403407A FR2868408A1 (en) 2004-04-01 2004-04-01 Pulley for deviating cables and belts in ship, has body receiving two sets of sheave wheels that are arranged such that they are tangential to circular arc, where wheels rotate around axis

Publications (1)

Publication Number Publication Date
FR2868408A1 true FR2868408A1 (en) 2005-10-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR0403407A Pending FR2868408A1 (en) 2004-04-01 2004-04-01 Pulley for deviating cables and belts in ship, has body receiving two sets of sheave wheels that are arranged such that they are tangential to circular arc, where wheels rotate around axis

Country Status (1)

Country Link
FR (1) FR2868408A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036243C2 (en) * 2008-11-26 2010-05-27 Leonardus Marinus Jacobus Van Den Dobbelsteen TOOL FOR GUIDING AND PROTECTING A FLEXIBLE PIPE.
WO2013095158A1 (en) * 2011-12-23 2013-06-27 Stimline As Drum unit for a well intervention string
US9228395B2 (en) 2011-12-23 2016-01-05 C6 Technologies As Flexible routing device for well intervention
US9482064B2 (en) 2012-05-30 2016-11-01 C6 Technologies As Drum unit with an arch compensator for a well intervention string
JP2016199340A (en) * 2015-04-08 2016-12-01 古河ユニック株式会社 Sheave device for crane and crane including the same
US10071890B2 (en) 2012-11-07 2018-09-11 3Dp Modelling As Orbiting fairlead block

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE883632C (en) * 1951-10-05 1953-07-20 Fritz Heimann Cable guide device
US4417718A (en) * 1979-12-20 1983-11-29 Niskin Shale J Counter balanced sheave assembly with multiple pulleys
US4492363A (en) * 1979-12-20 1985-01-08 Niskin Shale J Multiple pulley sheave assembly with retainer pulleys
US4708321A (en) * 1986-06-05 1987-11-24 Niskin Shale J Multiple sheave assembly with angled rollers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE883632C (en) * 1951-10-05 1953-07-20 Fritz Heimann Cable guide device
US4417718A (en) * 1979-12-20 1983-11-29 Niskin Shale J Counter balanced sheave assembly with multiple pulleys
US4492363A (en) * 1979-12-20 1985-01-08 Niskin Shale J Multiple pulley sheave assembly with retainer pulleys
US4708321A (en) * 1986-06-05 1987-11-24 Niskin Shale J Multiple sheave assembly with angled rollers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036243C2 (en) * 2008-11-26 2010-05-27 Leonardus Marinus Jacobus Van Den Dobbelsteen TOOL FOR GUIDING AND PROTECTING A FLEXIBLE PIPE.
WO2013095158A1 (en) * 2011-12-23 2013-06-27 Stimline As Drum unit for a well intervention string
US9169102B2 (en) 2011-12-23 2015-10-27 C6 Technologies As Drum unit for a well intervention string
US9228395B2 (en) 2011-12-23 2016-01-05 C6 Technologies As Flexible routing device for well intervention
US9482064B2 (en) 2012-05-30 2016-11-01 C6 Technologies As Drum unit with an arch compensator for a well intervention string
US10071890B2 (en) 2012-11-07 2018-09-11 3Dp Modelling As Orbiting fairlead block
JP2016199340A (en) * 2015-04-08 2016-12-01 古河ユニック株式会社 Sheave device for crane and crane including the same

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