WO2005038168A1 - Navette de liaison - Google Patents

Navette de liaison Download PDF

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Publication number
WO2005038168A1
WO2005038168A1 PCT/AU2004/001404 AU2004001404W WO2005038168A1 WO 2005038168 A1 WO2005038168 A1 WO 2005038168A1 AU 2004001404 W AU2004001404 W AU 2004001404W WO 2005038168 A1 WO2005038168 A1 WO 2005038168A1
Authority
WO
WIPO (PCT)
Prior art keywords
shuttle
safety line
safety
closed position
members
Prior art date
Application number
PCT/AU2004/001404
Other languages
English (en)
Inventor
Arvo Poldmaa
Original Assignee
Poldmaa, Kathleen
Poldmaa, Robyn
Poldmaa, Daniel
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
Priority claimed from AU2003905612A external-priority patent/AU2003905612A0/en
Application filed by Poldmaa, Kathleen, Poldmaa, Robyn, Poldmaa, Daniel filed Critical Poldmaa, Kathleen
Publication of WO2005038168A1 publication Critical patent/WO2005038168A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0081—Equipment which can travel along the length of a lifeline, e.g. travelers

Definitions

  • This invention relates to a connecting shuttle for a safety line and more particularly, to a connecting shuttle for securing one or more safety devices to a safety line attached to a structure such as a building by means of suitable safety line anchors.
  • the structure may include a building structure.
  • the building structure may be in the process of being built, or may be the subject of maintenance or renovation activities.
  • the building may be a commercial or domestic structure and the invention is applicable to any type of roof covering, requiring only that it is possible to gain access to structural members to which the anchors and safety line may be affixed.
  • structural members include purlins, structural beams and the like.
  • a safety device may then be attached to the safety line by means of a runner or shuttle so as to allow the safety device to move along the length of the rail or cable.
  • the attached safety device may include a range of devices adapted to secure a worker or an object, particularly against the likelihood of falling, including a simple rope or cable, or a harness, attached to the person.
  • a connecting shuttle for attaching a safety device to a safety line, wherein the shuttle is free to move along the safety line upon being attached thereto, the shuttle having receiving means to attach the safety device, the shuttle comprising a first and a second member slideably interconnected so as to move between a first open and a second closed position, the first or coupling member having means for locating the shuttle on or about a safety line attached to a structure when the respective members of the shuttle are moved relative to each other so as to be in the first open position, and the second or retaining member having means for retaining the shuttle on the safety line once the retaining member is moved relative the first member so that the shuttle is in the second closed position; the shuttle further having securing means to secure the shuttle to the safety line by maintaining it in the closed position so as to prevent the shuttle from being opened and hence removed from the safety line, whilst the shuttle is in use on the safety line.
  • the safety line may be a cable or rail affixed by anchors in known fashion to a structure as described hereinbefore.
  • the safety device may be any rope, cable, tie or harness, or combination thereof, by which a person may be prevented from falling, once attached to the safety line by means of the shuttle.
  • the shuttle members once fitted together during manufacture cannot be separated from each other in the normal course of use. That is to say, there are means to prevent the second retaining member from being moved other than slideably between the first open and second closed position.
  • This may be accomplished in any one of several known ways including providing flanges or the like on one or other of the members at appropriate locations to prevent separation.
  • the means associated with the coupling member for locating the shuttle on or about the safety line is provided by a hook portion formed in the coupling member.
  • the hook portion is so formed as to allow the shuttle to pass smoothly along the cable or rail forming the safety line.
  • the retaining means associated with the second or retaining member is provided by a ramp portion located thereon so that in the first or open position, the ramp portion of the retaining member is separated sufficiently from the hook portion of the coupling member so as to allow the shuttle to be located onto the cable or rail of the safety line, or removed therefrom as the case may be, whilst in the second or closed position the ramp is brought into proximity with the hook of the coupling member so as to prevent removal of the shuttle from the safety line, ie whilst in an in-use situation.
  • the ramp portion may be a simple flange.
  • the ramp and hook may be so designed that a gap remains between the ramp and the leading edge of the hook in the otherwise "closed” position to allow the shuttle to pass by the shaft of an anchor to which the rail or cable is fitted (the cable itself for example passing through a sleeve or tube portion of the anchor as described above).
  • the shuttle can be made to pass the shaft if the gap is wide enough to allow same, but the shuttle will not be able to leave or be removed from the safety line if the gap is less than the diameter or other relevant dimension of the cable or rail, whilst the shuttle is maintained in the closed position.
  • leading edges of the hook portion may also be suitably bevelled or otherwise shaped so as to assist the shuttle to pass by any anchor means attaching the cable to the structure, including any tube or sleeve etc through which the cable passes, whether as part of the anchor itself or used in relation to one or more anchors, for example in corner arrangements to change the direction of the safety line as described in at least one of my co-pending patent applications, the details of which are imported herewith by such reference.
  • the receiving means for attaching the safety device to the shuttle may be any suitable means known in the art, including but not limited to a hole or aperture through which a karabiner or like element may be inserted.
  • a harness, rope or tie etc may then be attached to the karabiner.
  • the advantage of employing a karabiner is so that the rope or tie etc does not need to be untied each time, the karabiner serving the purpose of providing quick and safe attachment of the safety device to the shuttle in known fashion.
  • the securing means for maintaining the shuttle in the closed position whilst it is being used on the safety line is provided by a pair of holes in each of the two members, which are brought into registration when the members are moved relative each other to reach the closed position, and through which a karabiner or other attachment device may be inserted as described above, thereby not only providing the means of attachment for the safety device to the shuttle, but the very means by which it can be prevented from coming open, ie so as to prevent the members being moved relative each other to once again reach the open position. It will be understood that the orientation of such holes must be such that once the members are slid towards the open position the holes will no longer be in registration.
  • the axis of the holes must be oriented at angle to the axis or plane of direction in which the members slide. If it is desired to remove the shuttle from the line, the karabiner must first be removed from where it passes through the then corresponding holes in the members, allowing the members to be slid relative each other to once again reach the open position for removal of the shuttle from the line.
  • the holes for receiving such karabiner or the like are located on corresponding flanges of the members, the flanges being so oriented that the natural travel position of the shuttle is achieved whereby the rope or tie etc attached thereto causes the shuttle to ride on the safety line with the gap facing downwardly to pass easily by a perpendicular shaft of the safety line anchor.
  • a safety line anchor is described in at least another of my co-pending patent applications, the details of which are again are imported hereto by such reference.
  • the hook of the coupling member can be made to extend around the opposite side of the safety line (ie opposite to the direction of load) so that when a sudden load is applied the line is prevented from being forced into the gap, which might otherwise weaken the arrangement.
  • Figure 1 is a side elevation of a shuttle according to one aspect of the invention, the shuttle being in the closed position;
  • Figure 2 is a view of the shuttle of Fig 1 looking in the direction of arrow A;
  • Figure 3 is a side elevation of the shuttle of Fig 1, viewed from the opposite side and oriented so as to be the normal in-use position;
  • Figure 4 is a view of the same shuttle as the previous Figs, corresponding specifically to the view of Fig 3 looking in the direction of arrow C;
  • Figure 5 is a cross sectional view of the shuttle of the previous Figs, in the same orientation as Fig 3;
  • Figure 6 is a view of the same shuttle as the previous Figs, corresponding specifically to the view of Fig 3 looking in the direction of arrow B; and
  • Figure 7 is a side elevation of the shuttle of the previous Figs, corresponding especially to the orientation of Fig 3, but in the open position.
  • a shuttle generally referenced 10, having a coupling member 11 and a retaining member 12 slideably located therein.
  • the retaining member 12 cannot be removed from the other member 11 , for example by means of a flange formed on one of the members (1 1, 12), although this feature is not specifically disclosed.
  • the members 11 , 12 are preferably forged from stainless steel.
  • the coupling member 11 has a hook portion 13 located at one end for placement of the shuttle 10 on or about a cable or rail not shown. At its other end, the coupling member 11 is provided with a flange member 14 through which there passes a hole 15.
  • the retaining member 12 is provided with a ramp portion 16 at one end and a corresponding flange member 17 at the other end through which there passes a second hole 18.
  • the retaining member 12 can be slid into the closed position after the shuttle is placed on a safety line (not shown), the line effectively occupying part of void 19.
  • the ramp 16 cooperates with hook portion 13 to thus enclose the safety line, the diameter of which will necessarily be larger than the gap 20 remaining between the hook 13 and ramp 16 to prevent removal of the shuttle 10, whilst it remains in the closed position.
  • This is simply and effectively achieved by passing a karabiner (not shown) through the holes 15 and 18 which are now in alignment as shown particularly in Figs 1, 3 and 5 .
  • the respective members 11 and 12 cannot be slid to apart to the open position (as shown in Fig 7). Only upon removal of the karabiner can that be accomplished. It will be apparent from Fig 7 that the holes (15, 18) are no longer in alignment in the open position and that position can only be reached by removal of the karabiner.
  • Figures 3 and 5 are particularly useful in understanding the natural travel position of the shuttle 10 on the safety line, where it will be apparent that a rope or the like attached to a karabmer (neither of which are shown) will generally provide a load in the direction of arrow D such that when coupled with the weight of shuttle 10, will cause it generally to adopt the orientation as shown.
  • This is advantageous in that the gap 20 will then naturally be pointing downwards facilitating travel of the shuttle passed an anchor shaft (not shown) which supports the safety line at that point as described above and by reference elsewhere to my co-pending patent applications.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)

Abstract

La présente invention concerne une navette de liaison (10) destinée à attacher un dispositif de sécurité sur un filin de sécurité, ladite navette pouvant se déplacer librement le long du filin de sécurité lorsqu'elle est fixée sur ce dernier. La navette comprend des moyens de réception (15, 18) prévus pour fixer le dispositif de sécurité sur ce dernier. La navette comporte des premier (11) et deuxième (12) éléments qui sont reliés entre eux de manière coulissante afin de se déplacer entre une première position ouverte et une deuxième position fermée. Le premier élément ou élément de couplage comprend un moyen (13) de localisation de la navette sur un filin de sécurité ou au voisinage de ce dernier qui est attaché à une structure lorsque les éléments respectifs de la navette se déplacement relativement l'un par rapport à l'autre de manière à se trouver dans la première position ouverte. Le deuxième élément ou élément de retenue comprend un moyen (16) de maintien de la navette sur le filin de sécurité lorsque l'élément de retenue se déplace par rapport au premier élément, de sorte que la navette se trouve dans la deuxième position fermée. La navette comporte également un moyen de sécurité, destiné à bloquer la navette sur le filin de sécurité, qui la maintient dans la position fermée de manière à empêcher la navette de s'ouvrir et par conséquent de sortir du filin de sécurité, alors que la navette est en utilisation sur le filin de sécurité.
PCT/AU2004/001404 2003-10-14 2004-10-14 Navette de liaison WO2005038168A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2003905612A AU2003905612A0 (en) 2003-10-14 Connecting shuttle
AU2003905612 2003-10-14

Publications (1)

Publication Number Publication Date
WO2005038168A1 true WO2005038168A1 (fr) 2005-04-28

Family

ID=34437869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2004/001404 WO2005038168A1 (fr) 2003-10-14 2004-10-14 Navette de liaison

Country Status (1)

Country Link
WO (1) WO2005038168A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273673B1 (fr) * 1986-12-23 1991-09-18 Barrow Hepburn Sala Limited Organe coulissant pour câble de sécurité et soutien pour un tel câble
EP0608164A1 (fr) * 1993-01-22 1994-07-27 Protecta International (S.A.) Dispositif d'ancrage mobile permettant le déplacement en toute sécurité selon un axe horizontal
DE29811100U1 (de) * 1998-06-20 1998-09-03 Fischer Klaus Personen-Absturzsicherung bei Bauwerken
GB2370312A (en) * 2000-11-29 2002-06-26 Uniline Safety Systems Ltd Attachment device for a safety line
FR2819727A1 (fr) * 2001-01-19 2002-07-26 Odco Dispositif de securite anti-chute

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273673B1 (fr) * 1986-12-23 1991-09-18 Barrow Hepburn Sala Limited Organe coulissant pour câble de sécurité et soutien pour un tel câble
EP0608164A1 (fr) * 1993-01-22 1994-07-27 Protecta International (S.A.) Dispositif d'ancrage mobile permettant le déplacement en toute sécurité selon un axe horizontal
DE29811100U1 (de) * 1998-06-20 1998-09-03 Fischer Klaus Personen-Absturzsicherung bei Bauwerken
GB2370312A (en) * 2000-11-29 2002-06-26 Uniline Safety Systems Ltd Attachment device for a safety line
FR2819727A1 (fr) * 2001-01-19 2002-07-26 Odco Dispositif de securite anti-chute

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