EP0091357A1 - Appareil de traction pour le halage d'un câble, d'une barre ou d'un organe comparable - Google Patents

Appareil de traction pour le halage d'un câble, d'une barre ou d'un organe comparable Download PDF

Info

Publication number
EP0091357A1
EP0091357A1 EP83400643A EP83400643A EP0091357A1 EP 0091357 A1 EP0091357 A1 EP 0091357A1 EP 83400643 A EP83400643 A EP 83400643A EP 83400643 A EP83400643 A EP 83400643A EP 0091357 A1 EP0091357 A1 EP 0091357A1
Authority
EP
European Patent Office
Prior art keywords
jaw
clamping
cable
guide
bar
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Withdrawn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
EP83400643A
Other languages
German (de)
English (en)
French (fr)
Inventor
Michel Cavalieri
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.)
Tractel SAS
Original Assignee
Tractel SAS
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 Tractel SAS filed Critical Tractel SAS
Publication of EP0091357A1 publication Critical patent/EP0091357A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B66D3/02—Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction

Definitions

  • traction devices designed to haul a cable by a system of levers actuating two self-tightening pliers in a back-and-forth movement which drives the two pliers in opposite directions by causing the clamping of the clamp which moves in the direction of hauling and the loosening of the other clamp which moves in the opposite direction.
  • Each of the clamps is formed by two opposite jaws between which the cable can be clamped and which are joined by clamping rods hinged on these two jaws.
  • the movement of the grippers back and forth can be ensured by a rectilinear bar of an appropriate profile on which a jaw of each gripper is guided and at one end of which is articulated the operating lever which actuates two connecting rods hinged to this lever at two symmetrical points with respect to the articulation between the guide bar and the lever, these two connecting rods respectively driving the two clamps.
  • the main object of the invention is to improve the efficiency of a hauling device of the type mentioned above while using a construction as simple as possible.
  • the guide jaw of each clamp which constitutes the part of each clamping mechanism guided by the guide bar is established in the form of a hollow body traversed by the guide bar and serving as a housing and fulcrum at one end of a pre-tightening spring, the other end of which exerts its action on a tightening rod actuating the other jaw of the tightening mechanism.
  • the pre-tightening spring can then be a compression spring, the end opposite to its fulcrum acts on an axis..solidated with a lateral tightening link and sliding in an appropriate opening of the corresponding side face of the guided jaw.
  • the invention also uses the hollow body of each guided jaw for mounting a rolling roller with the front of the jaw in the direction of hauling, this roller rolling on the guide bar which crosses the jaw.
  • the invention provides that a roller can be placed at the free end of the guide bar in order to exert a reaction perpendicular to the axis of the tensioned cable. This arrangement makes it possible to reduce the spacing of the jaws of an open clamp by allowing its immediate reclosing during the next reversal of the back-and-forth movement.
  • a guide bar constituted for example by a metal I-shaped profile whose outline appears completely in FIG. 4.
  • the guide bar is integral with a base 2 on which the operating lever 3 is articulated by an axis 4.
  • the base 2 may include an anchoring lug 5 which may have holes 6 intended for the attachment of the 'apparatus.
  • the operating lever 3 is articulated by axes 7-8 to the two actuating rods 9-10 whose opposite ends are articulated to the flanges 11-12 of the two clamps by pins 13-14.
  • the guided jaws of the two clamps constituting the upper jaws are indicated in FIG. 1 in 15-16 while the lower jaws are indicated in 17-18. Between the upper jaw and the lower jaw of each clamp passes the cable 19 whose part located on the stretched side is indicated at 20.
  • the two clamping rods 25-27 which are articulated on the jaw 15 by the axes 29-31 and on the jaw 17 by the axes 33-35.
  • the two clamping rods 26-28 which in turn are articulated on the jaw 16 by the axes 30-32 and on the jaw 18 by the axes 34 -36.
  • roller carrier 37 consisting of two folded flanges fixed at 38 ( Figure 5) on the bar 1 and supporting the pins 39 of a grooved roller 40 intended to exert a reaction to the pressure of the cable towards the sliding jaw, generated by the force exerted on the operating lever by the operator.
  • FIG. 1 shows the device in the position furthest from the clamps, that is to say for the extreme position, to the right of FIG. 1, of the actuating handle 41 of the lever operation 3, it is understood that the jaw 15 is in its extreme left position like the axis 7 located opposite the handle 41 relative to the pivot axis 4 of the lever 3, while the jaw 16 is its extreme right position.
  • the structure of the guided jaws 15-16 will now be described more completely with reference to FIGS. 3-4 showing the detail of the clamp constituted by the jaws 15-17.
  • the jaw 15 consists essentially of a hollow body 42, the cavity of which is open at the front and at the rear to be traversed by the guide bar 1 anchored in a fixed position during hauling.
  • the external underside of this hollow body 42 has a groove profile 43 for clamping the cable 19 between the two jaws 15-17 of the clamp in the closed position, the upper face of the jaw 17 having a groove profile 44 opposite the profile 43.
  • the internal cavity of the hollow body 42 is closed above the bar 1 towards the front, that is to say towards the actuating lever 3, by a stirrup 45 crossed by the axis 29 and serving as a support to a compression spring 46 constituting a pre-clamping spring.
  • This spring may be a helical spring wound around a movable rod 47 between the stirrup 45 and a head 48 by which the rod 47 pushes on an axis 49 secured to the lateral tightening link 27 and capable of sliding in a suitable recess of the side wall of the hollow body 42 disposed along the link 27.
  • each guided jaw carries a roller 50 which can rotate about its axis 51 to roll on the upper face. of the bar 1, thereby considerably reducing the friction forces capable of resisting the sliding of the guided jaws and consequently considerably reducing the force to be exerted on the actuating lever.
  • the above constitution of the upper jaws thus allows an improved efficiency of the hauling apparatus while being particularly simple and enclosing the pre-tightening spring of each clamp inside the hollow body of its guided jaw in which this spring is is sheltered for long-term operation without deterioration.
  • the roller 40 at the rear end of the guide bar 1 is arranged so that the bottom of its groove protrudes slightly down below the bottom of the longitudinal groove of the neighboring upper jaw 16 so that the cable cannot press against this jaw when the corresponding clamp is in the open position and slides on the cable while the other clamp advances towards the actuating lever by driving the cable.
  • Such plating would indeed have the drawback of opening the movable clamp excessively relative to the cable and of disturbing the reversal of the action of the clamps during the reversal of the movement of the actuating lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)
  • Wire Processing (AREA)
  • Ropes Or Cables (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
EP83400643A 1982-04-01 1983-03-29 Appareil de traction pour le halage d'un câble, d'une barre ou d'un organe comparable Withdrawn EP0091357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8205678 1982-04-01
FR8205678A FR2524454A1 (fr) 1982-04-01 1982-04-01 Appareil de traction pour le halage d'un cable, d'une barre ou d'un organe comparable

Publications (1)

Publication Number Publication Date
EP0091357A1 true EP0091357A1 (fr) 1983-10-12

Family

ID=9272660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400643A Withdrawn EP0091357A1 (fr) 1982-04-01 1983-03-29 Appareil de traction pour le halage d'un câble, d'une barre ou d'un organe comparable

Country Status (4)

Country Link
EP (1) EP0091357A1 (enrdf_load_stackoverflow)
JP (1) JPS591038A (enrdf_load_stackoverflow)
DE (1) DE91357T1 (enrdf_load_stackoverflow)
FR (1) FR2524454A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0693455A1 (fr) * 1994-07-18 1996-01-24 Tractel S.A. Appareil de traction ou de levage à machoires, agissant sur des sangles souples à profil plat

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2547874Y2 (ja) * 1991-07-29 1997-09-17 株式会社石井製作所 砕土機
JP2008306797A (ja) * 2007-06-05 2008-12-18 Tokyo Electric Power Co Inc:The 掴線器及びこの掴線器を有する張線装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR611241A (fr) * 1925-07-30 1926-09-23 Dispositif pour empêcher le mouvement dans un sens des pièces en forme de ruban oude câble
FR687232A (fr) * 1929-12-26 1930-08-06 Appareil de traction et de levage à câble métallique
US2467740A (en) * 1947-03-15 1949-04-19 Haller John Step-by-step feeding device
CH300109A (de) * 1951-01-05 1954-07-15 Anonyme Secalt Societe Greifzange mit Rollkörpern, insbesondere zum Aufbau von Drahtseilzugvorrichtungen mit letztere durchsetzendem Seil.
GB860999A (en) * 1957-05-04 1961-02-15 Brev & Apparels Tirfor Soc D E Improvements in hauling and lifting apparatus employing a metal cable
FR1489029A (fr) * 1966-01-18 1967-07-21 Unitral Pince à auto-serrage pour un appareil de traction et de levage agissant sur un câble qui le traverse
FR2122327A7 (enrdf_load_stackoverflow) * 1971-01-20 1972-09-01 Lebre Charles
BE805580A (fr) * 1973-10-02 1974-02-01 Milbras Pince a auto-serrage pour un treuil a cable libre
FR2306159A1 (fr) * 1975-04-03 1976-10-29 Capgras Rene Treuil a cable libre et a machoires inversees

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR611241A (fr) * 1925-07-30 1926-09-23 Dispositif pour empêcher le mouvement dans un sens des pièces en forme de ruban oude câble
FR687232A (fr) * 1929-12-26 1930-08-06 Appareil de traction et de levage à câble métallique
US2467740A (en) * 1947-03-15 1949-04-19 Haller John Step-by-step feeding device
CH300109A (de) * 1951-01-05 1954-07-15 Anonyme Secalt Societe Greifzange mit Rollkörpern, insbesondere zum Aufbau von Drahtseilzugvorrichtungen mit letztere durchsetzendem Seil.
GB860999A (en) * 1957-05-04 1961-02-15 Brev & Apparels Tirfor Soc D E Improvements in hauling and lifting apparatus employing a metal cable
FR1489029A (fr) * 1966-01-18 1967-07-21 Unitral Pince à auto-serrage pour un appareil de traction et de levage agissant sur un câble qui le traverse
FR2122327A7 (enrdf_load_stackoverflow) * 1971-01-20 1972-09-01 Lebre Charles
BE805580A (fr) * 1973-10-02 1974-02-01 Milbras Pince a auto-serrage pour un treuil a cable libre
FR2306159A1 (fr) * 1975-04-03 1976-10-29 Capgras Rene Treuil a cable libre et a machoires inversees

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0693455A1 (fr) * 1994-07-18 1996-01-24 Tractel S.A. Appareil de traction ou de levage à machoires, agissant sur des sangles souples à profil plat

Also Published As

Publication number Publication date
DE91357T1 (de) 1984-04-26
FR2524454A1 (fr) 1983-10-07
FR2524454B1 (enrdf_load_stackoverflow) 1984-06-29
JPS591038A (ja) 1984-01-06

Similar Documents

Publication Publication Date Title
FR2523637A1 (fr) Guide-fleuret escamotable pour glissiere de foration et de boulonnage
FR2509490A1 (fr) Mecanisme de debrayage pour appareil de traction agissant sur un cable qui le traverse
FR2991669A1 (fr) Verrou a crochet
FR2624905A1 (fr) Verrou plat pour relier deux elements
EP0098218B1 (fr) Dispositif pour le verrouillage automatique d'un panneau d'écoutille en position de fermeture ou d'ouverture
FR2708224A1 (fr) Outil combiné de serrage et de découpe pour colliers de serrage à cliquet.
EP0341155A1 (fr) Dispositif de bridage pour plaques ou profilés l'un contre l'autre
US4483517A (en) Tractive apparatus for hauling a cable, a bar or a similar member
FR2582486A1 (fr) Dispositif de mise sous tension d'un organe souple assurant la liaison entre deux pieces, applicable notamment a la fermeture et au serrage d'une chaussure de ski sur le pied d'un skieur
EP0091357A1 (fr) Appareil de traction pour le halage d'un câble, d'une barre ou d'un organe comparable
FR2524361A1 (fr) Appareil de traction pour le halage d'un cable, d'une barre ou d'un organe comparable
EP0879165B1 (fr) Pince debrayable a ressort a lame
EP0693455A1 (fr) Appareil de traction ou de levage à machoires, agissant sur des sangles souples à profil plat
BE472181A (enrdf_load_stackoverflow)
EP1718827B1 (fr) Barre anti-panique et porte ainsi équipée
EP1375046B1 (fr) Pince à souder portable
FR2672881A1 (fr) Pince pour le levage d'elements plats, tels que des paquets de toles.
EP0028973A1 (fr) Dispositif pour assurer la manoeuvre d'une porte basculante et porte ainsi équipée
FR2620160A1 (fr) Verrou de securite
EP0052062A1 (fr) Dispositif pour la fixation d'un câble électrique aérien à un isolateur
FR2460140A1 (fr) Ecarteur anal
BE1010832A6 (fr) Dispositif de sertissage d'elements sur un fil.
FR2726052A1 (fr) Pince de manutention a geometrie variable pour la prise et le serrage d'une charge
FR2524051A1 (fr) Verrou a pene coulissant pour ridelles, portes battantes et analogues
FR2506528A1 (fr) Dispositif de connexion destine au raccordement d'une extremite d'un fil a un appareil electrique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE GB IT LI SE

ITCL It: translation for ep claims filed

Representative=s name: ING. A. GIAMBROCONO & C. S.R.L.

DET De: translation of patent claims
17P Request for examination filed

Effective date: 19840328

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19851002

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CAVALIERI, MICHEL