FR2565656A1 - Pulley with force concentration. - Google Patents

Pulley with force concentration. Download PDF

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Publication number
FR2565656A1
FR2565656A1 FR8320616A FR8320616A FR2565656A1 FR 2565656 A1 FR2565656 A1 FR 2565656A1 FR 8320616 A FR8320616 A FR 8320616A FR 8320616 A FR8320616 A FR 8320616A FR 2565656 A1 FR2565656 A1 FR 2565656A1
Authority
FR
France
Prior art keywords
pulley
forces
rollers
yoke
support
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.)
Withdrawn
Application number
FR8320616A
Other languages
French (fr)
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 FR8320616A priority Critical patent/FR2565656A1/en
Publication of FR2565656A1 publication Critical patent/FR2565656A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/50—Features essential to rope pulleys

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Abstract

The invention relates to a pulley intended to support a cable or a rope and comprising a clevis 3 acting as support to its axis. The pulley of the invention is noteworthy in that the abovementioned clevis 3 is arranged relative to the pulley so as to receive the forces (arrows F and F') carried by the pulley, in the immediate vicinity of the said forces by placing, for example, rollers 2 on the fixed part of the pulley supported by the clevis 3. The free part 1 of the pulley is mounted freely on the rollers 2. Applications: pulleys with force concentration.

Description

Les poulies mcntées, ou non, sur des roulements à billes sont des objets connus. Known pulleys, or not, on ball bearings are known objects.

I1 y a cependant des conditions d'utilisation oU elles ne donnent pas satisfaction (à la mer par exemple), et il est alors fait appel à des constructions complexes et onéreuses. There are however conditions of use where they are not satisfactory (at sea for example), and it is then used complex and expensive constructions.

La figure 1 illustre une réalisation de poulie, on voit la réalisation 1 en appui sur les roulements (2) qui reposent sur l'axe (3) lui-même repris par les éléments de chape (4). Une observation permet de constater que les efforts F et F' sont transmis à l'axe (3) qui les ren voie aux chapes (4), il a semblé que le cheminement en aller-retour des efforts n'était pas intéressant et cette réflexion a conduit à l'invention décrite ci-apres. Figure 1 illustrates an embodiment of a pulley, we see embodiment 1 resting on the bearings (2) which rest on the axis (3) itself taken up by the yoke elements (4). An observation makes it possible to note that the forces F and F 'are transmitted to the axis (3) which returns them to the yokes (4), it seemed that the return journey of the forces was not interesting and this reflection led to the invention described below.

La figure 2 représente une forme de réalisation de poulie. Figure 2 shows an embodiment of pulley.

La réalisation 1 repose sur n galets repris par les éléments de chapes (3). On constate alors que les efforts F et F' sont directement transmis à la chape par les galets sans passer par l'axe.The embodiment 1 is based on n rollers taken up by the yoke elements (3). It is then observed that the forces F and F 'are directly transmitted to the yoke by the rollers without passing through the axis.

Cette solution qui concerne le diamètre du galet compatible avec le cable ou le filin supprime l'axe et diminue la chape. De plus, cette disposition est rationnelle car elle utilise les élément de roulement à l'endroit où l'effort existe.This solution which concerns the diameter of the roller compatible with the cable or the rope removes the axis and reduces the yoke. In addition, this arrangement is rational because it uses the rolling elements at the place where the effort exists.

I1 n'est pas utile d'avoir des éléments de roulement tout autour d'une poulie alors qu'elle est toujours sollicitée sur une faible portion de son diamètre. I1 is not useful to have rolling elements all around a pulley while it is always stressed on a small portion of its diameter.

Une autre forme de réalisation est donnée par la figure 3, dans cette application l'organe de roulement 1, des galets alternés sont sur un cercle, mais la chape se reprend sur la partie fixe de la poulie. Cette disposition permet de diminuer
le coût des éléments de chape et garde une concentration d'effort à l'endroit opportun. Another embodiment is given in FIG. 3, in this application the rolling member 1, alternating rollers are on a circle, but the yoke is resumed on the fixed part of the pulley. This arrangement reduces
the cost of the screed elements and keeps a concentration of effort in the right place.

Claims (3)

REVENDICATIONS 1. Poulie destinée à supporter un cable ou un filin et comportant une chape servant de support à son axe, CARACTERISEE 1. Pulley intended to support a cable or a rope and comprising a yoke serving as support for its axis, CHARACTERIZED PAR LE FAIT QUE la susdite chape est agencée par rapport à la poulie de manière à recevoir les efforts supportés par la poulie, au voisinage immédiat d'émission desdits efforts.BY THE FACT THAT the aforesaid yoke is arranged with respect to the pulley so as to receive the forces supported by the pulley, in the immediate vicinity of emission of said forces. 2. Poulie selon la revendication 1, CARACTERISEE PAR LE 2. Pulley according to claim 1, CHARACTERIZED BY THE FAIT QUE la partie fixe de la poulie supportée par la chape comporte des galets alors que la partie tournante de la poulie est libre.FACT THAT the fixed part of the pulley supported by the yoke has rollers while the rotating part of the pulley is free. 3. Poulie selon les revendications 1 et 2, CARATERISEE 3. Pulley according to claims 1 and 2, CHARACTERIZED PAR LE FAIT QUE la partie fixe et la partie tournante de la poulie sont réunies par des galets alternés. BY THE FACT THAT the fixed part and the rotating part of the pulley are joined by alternating rollers.
FR8320616A 1983-12-19 1983-12-19 Pulley with force concentration. Withdrawn FR2565656A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8320616A FR2565656A1 (en) 1983-12-19 1983-12-19 Pulley with force concentration.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8320616A FR2565656A1 (en) 1983-12-19 1983-12-19 Pulley with force concentration.

Publications (1)

Publication Number Publication Date
FR2565656A1 true FR2565656A1 (en) 1985-12-13

Family

ID=9295461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8320616A Withdrawn FR2565656A1 (en) 1983-12-19 1983-12-19 Pulley with force concentration.

Country Status (1)

Country Link
FR (1) FR2565656A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510432A1 (en) * 1991-04-25 1992-10-28 Harken Inc. Bearing block having high strength to weight ratio
WO2015001028A3 (en) * 2013-07-03 2015-04-09 Ino-Rope Pulley

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190916066A (en) * 1908-08-06 1909-08-19 Deutsche Waffen & Munitionsfab An Improved Ball Bearing.
DE919805C (en) * 1952-06-11 1954-11-04 Ed Breitenbach G M B H Pulley, especially for scraper ropes
US3144784A (en) * 1961-02-03 1964-08-18 Bird Machine Co Centering of rotary members
US3353880A (en) * 1965-09-27 1967-11-21 American Factors Ass Ltd Apparatus for supporting horizontal rotating cylinders
FR2205960A5 (en) * 1972-11-08 1974-05-31 Saret

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190916066A (en) * 1908-08-06 1909-08-19 Deutsche Waffen & Munitionsfab An Improved Ball Bearing.
DE919805C (en) * 1952-06-11 1954-11-04 Ed Breitenbach G M B H Pulley, especially for scraper ropes
US3144784A (en) * 1961-02-03 1964-08-18 Bird Machine Co Centering of rotary members
US3353880A (en) * 1965-09-27 1967-11-21 American Factors Ass Ltd Apparatus for supporting horizontal rotating cylinders
FR2205960A5 (en) * 1972-11-08 1974-05-31 Saret

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510432A1 (en) * 1991-04-25 1992-10-28 Harken Inc. Bearing block having high strength to weight ratio
WO2015001028A3 (en) * 2013-07-03 2015-04-09 Ino-Rope Pulley
KR20160039196A (en) * 2013-07-03 2016-04-08 이노-­로프 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ Pulley
US9975743B2 (en) 2013-07-03 2018-05-22 Ino-Rope Pulley
KR102139400B1 (en) 2013-07-03 2020-07-29 이노-로프 Pulley

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