EP2213810A1 - Dispositif pour ligne de vie - Google Patents

Dispositif pour ligne de vie Download PDF

Info

Publication number
EP2213810A1
EP2213810A1 EP10151838A EP10151838A EP2213810A1 EP 2213810 A1 EP2213810 A1 EP 2213810A1 EP 10151838 A EP10151838 A EP 10151838A EP 10151838 A EP10151838 A EP 10151838A EP 2213810 A1 EP2213810 A1 EP 2213810A1
Authority
EP
European Patent Office
Prior art keywords
main body
secondary body
lifeline
spring
spring system
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.)
Granted
Application number
EP10151838A
Other languages
German (de)
English (en)
Other versions
EP2213810B1 (fr
Inventor
Alberto Gandellini
Luca Magoni
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.)
Gandellini Beniamino Srl
Original Assignee
Gandellini Beniamino Srl
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 Gandellini Beniamino Srl filed Critical Gandellini Beniamino Srl
Publication of EP2213810A1 publication Critical patent/EP2213810A1/fr
Application granted granted Critical
Publication of EP2213810B1 publication Critical patent/EP2213810B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/12—Devices or arrangements allowing walking on the roof or in the gutter
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
    • A62B1/04—Single parts, e.g. fastening devices
    • 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
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • A62B35/0056—Horizontal lifelines
    • 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
    • A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • E04G21/3276—Arrangements on buildings for connecting safety-lines
    • E04G21/329—Arrangements on buildings for connecting safety-lines with measures for dampening the fall

Definitions

  • the present invention relates to a device for lifelines, to the lifeline including this device and to a method for installing this lifeline.
  • lifelines such as those disclosed in document W02008/081375 , designed to be mounted onto structures typically located at a certain height from the ground, such as building roofs, walls or beams, as a safety system for operators working at this height from the ground.
  • These lifelines though not ensuring to prevent the operator from losing balance and from slipping down, do however prevent in this case the operator from colliding with underlying structures or with the ground, or do anyhow limit the violence thereof.
  • Known lifelines generally comprise two supporting stakes designed to be fastened at mutually distanced positions, typically along a sloping ridge of a roof of a building structure, such as e.g. a house, a block of flats, an industrial building or the like.
  • each supporting stake is provided with a base plate having a plurality of fastening holes for engaging corresponding fastening elements.
  • a connecting rope preferably made of steel, is fastened between the supporting stakes, to which rope an operator can be hooked by suitable harnesses and spring catches or similar safety equipment, thus being able to shift between the supporting stakes.
  • the connecting rope also for safety reasons, is tightened to a suitable tension of normal operation, typically of few kN (in the range from about 1 kN to about 3 kN, typically 2 kN).
  • a suitable tension of normal operation typically of few kN (in the range from about 1 kN to about 3 kN, typically 2 kN).
  • a tensioning element made up of a small cylinder having at its ends respective threaded holes into which respective threaded bodies are inserted.
  • the total length of the tensioning element is varied, thus varying the tension of the connecting rope.
  • a second end of the connecting rope opposed to the first one is hooked to the other supporting stake by means of a shock absorbing element, apt to soften the shock which the operator is subjected to when falling down.
  • This shock absorbing element is made up of a main body and a secondary body, hooked in a substantially non-elastic manner to the two supporting stakes, respectively, and a two-spring system placed between the main body and the secondary body.
  • the lifeline further comprises an intermediate retaining element, placed at a distance between the supporting stakes in order to counter any transversal shifts of the connecting rope according to predefined limits.
  • the spring system (typically comprising two or three springs) of the shock absorbing element is sized so that, when subjected to operating tension (about 1 to about 3 kN, e.g. 2 kN), it undergoes an extremely small (typically less than 3 mm) variation of total length with respect to the state of complete release (absence of forces). Therefore, these spring systems do not promote the integration of an indicating system into the shock absorbing system, since the mutual shift between the main body and the secondary body is so small to be negligible or insufficient to provide a sufficiently accurate indication of tension.
  • the aforesaid main body is mechanically completely bound to an additional secondary body arranged on the opposite side with respect to the aforesaid secondary body so as to hook the main body to its respective supporting stake.
  • the aforesaid additional secondary body screwed to the main body by means of a threaded coupling system, it is then welded to the main body, so as to prevent any further mutual rotation, both during installation and during use.
  • the shock absorbing element once assembled, is not designed to vary in a controlled manner its length and thus act as a tension device.
  • shock absorber the separation between the shock absorbing unit (“shock absorber”) in case of fall and the preliminary tensioning unit which absorbs small stresses on the rope, makes the construction and operation of the device quite complex, thus increasing the costs thereof.
  • the technical task underlying the present invention is to propose a device for lifelines, a lifeline comprising this device and an installation method, which overcome one or more of the drawbacks of the prior art as referred to above.
  • One of the aims of the present invention in one or more of its various aspects is to provide a device for lifelines, a lifeline comprising this device and a corresponding installation method, which are able to ensure a high level of safety.
  • One of the aims of the present invention in one or more of its various aspects is to propose a device for lifelines which can act as a shock absorber in case of fall and also as a tension indicator, as well as preferably also as a tensioner.
  • One of the aims of the present invention in one or more of its various aspects is to propose a device for lifelines with a small size, particularly along the direction of main development of the device.
  • One of the aims of the present invention in one or more of its various aspects is to propose a device for lifelines and a lifeline comprising this device, which are simple and cheap to manufacture and/or store and/or install and/or use.
  • One or more of the technical tasks and/or of the aims referred to are basically achieved by a device for lifelines, a lifeline comprising this device and a corresponding installation method, comprising the technical features listed below.
  • the invention relates to a device for a lifeline comprising: a main body having a first portion and a second portion, opposed to the first one, stiffly bound to one another; a first secondary body movably coupled to the main body and intended to be hooked to an element of the lifeline on the side of the first portion; a second secondary body, distinct and separate from the first one, coupled to the main body and intended to be hooked to an additional element of the lifeline on the side of said second portion; a spring system interposed between said main body and said first secondary body.
  • the spring system when subjected to a force of 2 kN, has a total length differing from the total length without forces of at least 3 mm, preferably at least 4 mm, still more preferably at least 5 mm.
  • the spring system has an elastic behavior when subjected to a force up to at least 5 kN, preferably up to at least 6 kN, still more preferably up to at least 7 kN.
  • “Elastic behavior” means that the variation of total length undergone by the spring system (with respect to the length without applied forces) is about directly proportional to the applied force.
  • the minimum force which, applied to the spring system, causes the maximum possible compression of the latter is of 5 kN or above, preferably of 6 kN or above, still more preferably of 7 kN or above.
  • the spring system comprises one and only one spring.
  • the device comprises a display system having a first portion integral with said main body and a second portion integral with said first secondary body, so that the relative position of said first portion with respect to said second portion, this relative position being determined by the force acting upon the spring system only, provides an easily understandable indication of this force acting upon the spring system.
  • the first and/or the second portion of the display system comprises a display graph (e.g. a graduated scale or a series of bands of different appearance, e.g. of different color).
  • a display graph e.g. a graduated scale or a series of bands of different appearance, e.g. of different color.
  • the first portion of the display system comprises a a display graph (e.g. a graduated scale or a series of bands of different appearance, e.g. of different color) placed on an outer surface of the main body, and the second portion of the display system comprises a cursor shifting in correspondence of said display graph and with respect to it.
  • a display graph e.g. a graduated scale or a series of bands of different appearance, e.g. of different color
  • the second portion of the display system comprises a a display graph (e.g. a graduated scale or a series of bands of different appearance, e.g. of different color) placed on an outer surface of the first secondary body, and the first portion comprises a cursor shifting in correspondence of said display graph and with respect to it.
  • a display graph e.g. a graduated scale or a series of bands of different appearance, e.g. of different color
  • the first and the second portion of the display system comprise a first and a second element, respectively, placed so that when the spring system is subjected to a force above 5 kN, preferably of 6 kN or above, the first and the second element enter into mutual contact and cause a permanent change in at least one of the first and the second element.
  • the first element or alternatively the second element coincides with the aforesaid shifting cursor.
  • the first element and/or the second element are made of permanently deformable material, e.g. plastic.
  • the second secondary body is coupled to the main body by means of a threaded coupling system.
  • the main body can rotate with respect to said second secondary body and, as a result of the mutual rotation between said main body and said second secondary body, said threaded coupling system causes a variation of the total length of said device.
  • said main body can rotate with respect to said first secondary body.
  • said main body is substantially shaped as a hollow cylinder with two end walls on the first and second portion, respectively.
  • the spring system is interposed between said first portion of the main body and said first secondary body, so as to be subjected to a compression force when the first and second secondary body are subjected to forces pulling them apart.
  • the first secondary body has a first end portion protruding from an end wall of said first portion of the main body and intended to be hooked to said element of the lifeline, and a second end portion opposed to the first portion with respect to said end wall of the main body, wherein said spring system is interposed between said main body and said second end portion.
  • the first secondary body can further have an elongated intermediate portion, stiffly connecting the first to the second end portion, inserted with clearance into a through hole located on said end wall.
  • the spring system comprises a helical spring into which an intermediate elongated portion of the first secondary body is inserted with clearance.
  • the second end portion of the first secondary body comprises a foil, preferably circular in shape, onto which said spring system abuts.
  • said foil has a degree of rotational freedom with respect to the remaining portions of the first secondary body (including the remaining parts of the second end portion).
  • said foil can have an extension located on the peripheral edge and configured for sliding inside a window obtained on the main body.
  • the aforesaid display graph is located on said window or near it.
  • the second secondary body has a respective first portion protruding from a respective end wall of said second portion of the main body and intended to be hooked to said additional element of the lifeline, and a respective second portion on the opposite side with respect to the first portion, wherein said threaded coupling system is interposed between said main body and said second portion.
  • the second portion of the second secondary body can be threaded externally and inserted into a threaded through hole placed on said respective end wall of said second portion of the main body.
  • the present invention relates to a lifeline comprising at least a first and a second supporting stake intended to be fastened to a structure in a mutually spaced manner, and a connecting line between said first and second stake, wherein said connecting line comprises at least one cable and the device according to any one of the previous aspect, connected one to the other.
  • the present invention relates to a method for installing a lifeline according to the above, comprising the steps of fastening to the structure the first and second supporting stake; rotating said second secondary body with respect to said main body thanks to said threaded coupling system, until the total length of said device reaches a predefined maximum length; hooking said connecting line to the first and second stake; and rotating said main body with respect to said second secondary body so that said threaded coupling system causes a reduction in the total length of the device until a suitable tension of the connecting line is achieved.
  • the numeral 1 globally refers to a lifeline, in particular for roofs, according to an aspect of the present invention.
  • the lifeline 1 comprises at least a first supporting stake 2 and at least a second supporting stake 3, preferably basically identical one to the other, which can be placed one beside the other at a suitable distance.
  • the supporting stakes 2, 3 are fastened with their basis to a building structure (not shown in the figure) such as a roof (preferably on top of it), a wall, a beam or other.
  • a building structure not shown in the figure
  • Each supporting stake 2, 3 is preferably of the type described in document W02008/081375 mentioned above, and for a detailed description thereof reference is made to the description contained therein.
  • the lifeline 1 comprises a connecting line 4 apt to physically and continuously connect the first and the second stake 2, 3.
  • the connecting line 4 comprises at least one cable 5, preferably made of steel, and a device 6 connected one to the other.
  • the cable 5 has a first end 5a (directly) hooked to a hooking ring of the second supporting stake 3, and a second end 5b, opposed to the first end 5a, (indirectly) hooked to a respective hooking ring of the first supporting stake 2 so as to provide an elongated hooking structure for the aforesaid hooking and/or safety equipment, along which it can slide between the supporting stakes 2, 3.
  • the second end 5b of the cable is hooked to the respective supporting stake 2 by placing therebetween at least one device 6.
  • the lifeline can comprise several devices 6 (e.g. at both ends of the cable) and that the device 6 can be installed so as to be rotated of 180° with respect to the Figure 1 .
  • the lifeline 1 can further comprise at least an intermediate retaining element (not shown in the figure) interposed between the supporting stakes 2, 3 for contrasting any transversal shifts of the connecting line 4 according to predefined limits.
  • This intermediate element is preferably of the type described in document W02008/081375 mentioned above, and for a detailed description thereof reference is made to the description contained therein.
  • the device 6 for lifelines comprises a main body 7 having a first portion 8 and a second portion 9, opposed to the first one 8, stiffly bound to one another; a first secondary body 10 movably coupled to the main body 7 and intended to be hooked to an element of the lifeline (in the example the cable 5, but it could also be the stake 2 and/or 3) on the side of the first portion 8; a second secondary body 11, distinct and separate from the first one 10, coupled to the main body 7 and intended to be hooked to an additional element of the lifeline (in the example the stake 2, but it could also be the cable 5) on the side of said second portion 9; and a spring system 12 interposed between said main body 7 and said first secondary body 10.
  • an element of the lifeline in the example the cable 5, but it could also be the stake 2 and/or 3
  • a second secondary body 11 distinct and separate from the first one 10 coupled to the main body 7 and intended to be hooked to an additional element of the lifeline (in the example the stake 2, but it could also be the cable 5) on the side of said second portion
  • the spring system 12 contains one or more springs 13 with parallel arrangement (in cases of serial arrangement, one series of springs is regarded as one spring).
  • the spring system comprises one and only one spring 13, e.g. of torsion type (i.e. a helical spring).
  • torsion type i.e. a helical spring
  • the spring system 12 is interposed between the first portion 8 of the main body 7 and the first secondary body 10 (as shown in Figure 3 ), so as to be subjected to a compressive force when the first 10 and second secondary body 11 are subjected to forces pulling them apart (i.e. in use when the cable 5 is under tension).
  • the spring system 12 may be interposed (not shown) between the second portion 9 of the main body 7 and the first secondary body 10, so as to be subjected to a tensile force when the first 10 and second secondary body 11 are subjected to forces pulling them apart (i.e. in use when the cable 5 is under tension).
  • the ends of the spring system 12 must be fastened to the two abutting bodies, e.g. by welding.
  • the spring system 12 when subjected to a force of 2 kN (approximately 200 kg), has a total length differing from the total length without forces of at least 3 mm, preferably at least 4 mm, still more preferably at least 5 mm (in the example about 5 mm).
  • the movement of the two bodies is sufficient to provide a sufficiently accurate indication of the tension of the cable 5.
  • the force which the spring system is subjected to corresponds approximately to the tension of the connecting line 4.
  • the spring system 12 has an elastic behavior when subjected to a force up to at least 5 kN, preferably up to at least 6 kN, still more preferably up to at least 7 kN.
  • the minimum force which, applied to the spring system 12, allows to reach the minimum possible length of the latter is of 5 kN or above, preferably of 6 kN or above, still more preferably of 7 kN or above.
  • the spring does not behave elastically (and typically also for forces slightly lower than this force).
  • the spring system can no longer act as a shock absorber and stiffly transfers the load applied thereto.
  • the device 1 can also be used as a tension indicator (see further below) in a static test performed with a tension of about 5 kN or above.
  • the spring system 12 can act as a shock absorber with quite high tensions (of 5 kN or above and typically up to 7 or 8 kN), which can occur e.g. in case of fall.
  • Elastic behavior means that the variation of length undergone by the spring system (with respect to the position without applied forces) is about directly proportional to the applied force (Hook's law).
  • a real spring can typically have deviations from the ideal elastic behavior, e.g. - though not only - with applied forces below a threshold value (typically approximately 100 kN).
  • the maximum moving back of the free end of the spring system 12 until it reaches the minimum possible length (turns in mutual contact) is of at least 15 mm, preferably 20 mm.
  • the maximum moving back of the end before reaching the minimum possible length (turns in mutual contact) is of about 32 mm and occurs with a force of about 8.5 kN.
  • the device 1 comprises a display system 14 having a first portion 15 integral with the main body 7 and a second portion 16 integral with the first secondary body 10, so that the relative position of the first 15 portion with respect to the second portion 16, this relative position being determined by the force (tension) acting upon the spring system 12 only, provides the operator with a clear and intelligible indication of this force acting upon the spring system 12.
  • the first portion 15 of the display system 14 comprises a display graph (e.g. a graduated scale, as shown, or a series of bands of different appearance, e.g. of different color) placed on an outer surface 7a of the main body 7.
  • the second portion 16 comprises a cursor 17 (e.g. a plate) shifting in correspondence of the display graph and with respect to it.
  • This plate 17 is integral with a foil or washer 26, being part of the first secondary body 10, onto which the spring 12 abuts (see further below).
  • the first portion 15 of the display system 14 can comprise, further to the display graph, a series of slots or through holes located on the outer surface 7a of the main body 7, configured for enabling to see from outside the position of the first secondary body 10 (e.g. the position of the foil 26 with respect to the display graph).
  • the main body 7 may also be transparent, at least in the portion corresponding to the display graph.
  • the second portion 16 of the display system may comprise (not shown) a display graph (e.g. a graduated scale or a series of bands of different appearance, e.g. of different color) placed on an outer surface of the first secondary body 10 (preferably on the portion thereof located on the end wall 19 of the portion 8 of the main body 7), and the first portion 15 comprises a cursor (preferably the outer face of the aforesaid end wall 19 or, in the example shown in Figure 3 , of the nut 40 associated thereto) shifting in correspondence of the display graph and with respect to it.
  • a display graph e.g. a graduated scale or a series of bands of different appearance, e.g. of different color
  • the display system 14 (e.g. the display graph) is configured for indicating a tension of at least 5 kN.
  • the aforesaid series of bands of different appearance can comprise a red band for positions of the cursor 17 corresponding to tensions significantly below 2 kN (e.g. below 1.8 kN), a green band for tensions approximately of 2 kN (e.g. 1.8 to 2.2 kN), and a red band for tensions significantly above 2 kN (e.g. above 2.2 kN).
  • it may comprise a band of different color (e.g. a yellow band) for tensions of approximately 5 kN (e.g. 4.8 to 5.2 kN).
  • the display system 14 is configured for permanently indicating when a tension above 5 kN is reached (e.g. in case of operator's fall).
  • the first portion of the display system can comprise a first element (not shown) placed (typically on the display graph) so that when the spring system is subjected to a force above 5 kN, preferably of 6 kN or above, the cursor 17 gets in contact with the first element causing a permanent change of the latter.
  • the first element is made of permanently deformable material, e.g. plastic, so that the cursor may deform, break and/or permanently mark it.
  • the second secondary body 11 is integrally bound (e.g. welded or made as one piece) to the main body 7.
  • the second secondary body 11 is coupled to the main body 7 by means of a threaded coupling system.
  • the main body 7 can be rotated in a controlled manner with respect to the second secondary body 11 and, as a result of the mutual rotation between the main body 7 and the second secondary body 11, the threaded coupling system causes a variation of the total length of the device 1.
  • this variation is partially reduced by the variation of length of the spring system 12 due to the tension of the line 4.
  • any other coupling system between main body 7 and second secondary body 11 alternative to the threaded coupling system and performing the aforesaid function of varying in a controlled manner the mutual position of the two bodies and therefore the total length of the device, though keeping the two bodies firmly bounded together, is a technical equivalent of the latter.
  • the main body 7 is basically shaped as a hollow cylinder 18 with two end walls 19, 20 on the first and second portion 8, 9, respectively, fastened (e.g. welded) to the cylinder 18.
  • the main body 7 has on its lateral surface one or more through holes 21 for letting water out, which may otherwise turn into ice and cause an improper function of the device 6
  • the first secondary body 10 has a first end portion 22 protruding from an end wall 19 of the first portion 8 of the main body 7 and intended to be hooked (e.g. by means of an eyebolt 23 first screwed onto the threaded portion 22 and then welded thereto) to the aforesaid element (e.g. the cable 5) of the lifeline 1, and a second end portion 24 opposed to the first portion 22 with respect to the end wall 19 of the main body 7 (and typically located inside the cavity of the latter).
  • the spring system 12 is preferably interposed between the main body 7 (e.g. between its aforesaid end wall 19) and the second end portion 24, inside the cavity of the main body 7.
  • the first secondary body 10 can further have an elongated intermediate portion 25 stiffly connecting the first 22 to the second end portion 24, which gets through with clearance a through hole located on the end wall 19, so that the first secondary body 10 can slide longitudinally within the aforesaid hole.
  • the elongated intermediate portion 25 of the first secondary body 10 is inserted with clearance (e.g. basically not in contact) into the aforesaid torsion spring 13.
  • the first secondary body 10 is a bolt with a head being part of the second end portion 24 and a stem (at least whose end is threaded) being part of the portions 22 and 25. This stem is inserted with clearance into the through hole of the wall 19 so as to slide longitudinally with respect to it.
  • the nut 40 having an inner hole with a larger diameter than the first secondary body 10 (e.g. the portion 24 getting through it), is welded to the main body 7 for helping the rotation thereof with respect to the second secondary body 11 by means of an adjustable wrench.
  • the second end portion 24 of the first secondary body 10 comprises a foil 26, preferably circular in shape, onto which the spring system 12 abuts.
  • This foil 26 can be firmly connected (e.g. welded) to the first secondary body 10 or preferably, as shown in Figure 3 , it may have a degree of rotational freedom (with longitudinal axis, e.g. along the direction of main development of the device 6) with respect to the remaining portions (e.g. 22, 25 but also the rest of the second end portion 24) of the first secondary body 10 (such as e.g. a washer 26).
  • the foil 26 can rotate integrally with the main body 7 (and typically with the spring system 12) creeping against the retaining head (e.g. bolt head) belonging to the second end portion 24, thus advantageously allowing an easier rotation of the main body 7 with respect to the first secondary body 10.
  • the foil 26 enables to obtain the display system 14 disclosed by way of example, since it can rotate integrally with the main body 7, though the first secondary body 10 remains still.
  • the foil 26 may have an extension 27 located on the peripheral edge thereof and configured for sliding longitudinally inside a window 28 obtained on the lateral wall 7a of the main body 7.
  • the aforesaid display graph 15 is located in the immediate nearness of said window 28, so that the cursor 17, integral with the foil 26 since it has a hole engaged by the extension 27, with its position with respect to this graph 15, can indicate the tension of the line 4.
  • the main body 7 can rotate with respect to the first secondary body 10, as shown in the example and in the embodiments described above. If the main body 7 cannot rotate or cannot easily rotate with respect to the second secondary body 10, it is advantageous to apply between the first secondary body 10 and the cable 5 (or anyhow the supporting stake 3) a device apt to enable the rotation of the first secondary body 10 with respect to the supporting stake 3 (e.g. when adjusting tension as described below).
  • the second secondary body 11 has a respective first portion 29 protruding from a respective end wall 20 of the second portion 9 of the main body 7 and intended to be hooked to the aforesaid additional element 2 of the lifeline 1, and a respective second portion 30 on the opposite side with respect to the first portion 29, wherein said threaded coupling system is interposed between the main body 7 and the second portion 30.
  • the second portion 30, threaded internally can surround the main body, threaded externally.
  • the second portion 30 of the second secondary body 11 can be threaded externally and engaged into a threaded through hole placed on the end wall 20 of the main body 7.
  • this threaded hole is obtained by welding a threaded nut 41 to the wall 20, wherein the threaded inner hole of the nut 41 is the aforesaid threaded hole.
  • the nut 42 engaged onto the threading 30 of the second secondary body 11 outside the wall 20, acts by way of example as a counter-nut for fastening the secondary body 11 to the main body 7, once their mutual position has been adjusted.
  • an end stop (not shown) can be provided on the free end of the portion 20 of the second secondary body 11.
  • a preferred method for installing the lifeline 1 comprises the steps of fastening to the structure the first and second supporting stake 2, 3; rotating the second secondary body 11 with respect to the main body 7 thanks to the threaded coupling system, until the total length of the device reaches a predefined maximum length (secondary body 11 taken out as much as possible of the main body 7); then hooking the connecting line 4 (cable 5 plus device 6) to the first and second stake 2, 3; and rotating the main body 7 with respect to the second secondary body 11 so that the threaded coupling system causes a reduction in the total length of the device 6 until a suitable tension of the connecting line 4 (e.g. 2 kN) is achieved.
  • a suitable tension of the connecting line 4 e.g. 2 kN
  • the aforesaid method comprises the execution of a static test, wherein said tension of the connecting line 4 is of at least 5 kN.
  • the device 1 typically the display system 14
  • the device 1 is used as an indicator for this tension.
  • the method comprises the step of rotating the main body 7 with respect to the second secondary body 11, so that the threaded coupling system causes an increase in the total length of the device 6 until an operating tension (e.g. in the range of about 1 kN to about 3 kN, typically 2 kN) of the connecting line 4, below the aforesaid tension of at least 5 kN, is achieved.
  • an operating tension e.g. in the range of about 1 kN to about 3 kN, typically 2 kN

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Springs (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP10151838.9A 2009-01-28 2010-01-27 Dispositif pour ligne de vie Active EP2213810B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBS2009A000011A IT1392639B1 (it) 2009-01-28 2009-01-28 Dispositivo per linee vita

Publications (2)

Publication Number Publication Date
EP2213810A1 true EP2213810A1 (fr) 2010-08-04
EP2213810B1 EP2213810B1 (fr) 2016-03-30

Family

ID=41563195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10151838.9A Active EP2213810B1 (fr) 2009-01-28 2010-01-27 Dispositif pour ligne de vie

Country Status (3)

Country Link
EP (1) EP2213810B1 (fr)
ES (1) ES2577549T3 (fr)
IT (1) IT1392639B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100172A1 (it) * 2010-10-27 2012-04-28 Si Al S R L Metodo per l esecuzione di una prova statica su una linea vita
EP3486031A1 (fr) * 2017-11-20 2019-05-22 Pro Automation GmbH Dispositif protecteur antichute pour machines et charges
EP4349422A1 (fr) * 2022-10-05 2024-04-10 Carrier Corporation Dispositif d'indication de tension et système d'extinction d'incendie comprenant un dispositif d'indication de tension

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5332071A (en) * 1993-03-09 1994-07-26 Sinco Incorporated Shock absorber for safety cable system
US5358068A (en) * 1992-10-30 1994-10-25 Whitmer Gerald T Safety system including cable tensioner and shock absorber
GB2351789B (en) * 1999-07-05 2003-01-22 Hanem Site Safety Equipment Lt Shock absorbing support and fall-arrest system
FR2857270A1 (fr) * 2003-07-10 2005-01-14 Somain Dispositif d'accrochage d'une ligne de vie sous forme d'un cable
DE202005014359U1 (de) * 2005-09-12 2005-11-17 Skylotec Gmbh Vorspannelement für eine Absturzsicherung
WO2008081375A1 (fr) 2006-12-27 2008-07-10 Si.Al. S.R.L. Système d'ancrage notamment destiné à un toit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5358068A (en) * 1992-10-30 1994-10-25 Whitmer Gerald T Safety system including cable tensioner and shock absorber
US5332071A (en) * 1993-03-09 1994-07-26 Sinco Incorporated Shock absorber for safety cable system
GB2351789B (en) * 1999-07-05 2003-01-22 Hanem Site Safety Equipment Lt Shock absorbing support and fall-arrest system
FR2857270A1 (fr) * 2003-07-10 2005-01-14 Somain Dispositif d'accrochage d'une ligne de vie sous forme d'un cable
DE202005014359U1 (de) * 2005-09-12 2005-11-17 Skylotec Gmbh Vorspannelement für eine Absturzsicherung
WO2008081375A1 (fr) 2006-12-27 2008-07-10 Si.Al. S.R.L. Système d'ancrage notamment destiné à un toit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100172A1 (it) * 2010-10-27 2012-04-28 Si Al S R L Metodo per l esecuzione di una prova statica su una linea vita
EP2447445A1 (fr) * 2010-10-27 2012-05-02 Si.Al. S.R.L. Méthode pour effectuer un test static d'une ligne de vie
EP3486031A1 (fr) * 2017-11-20 2019-05-22 Pro Automation GmbH Dispositif protecteur antichute pour machines et charges
EP4349422A1 (fr) * 2022-10-05 2024-04-10 Carrier Corporation Dispositif d'indication de tension et système d'extinction d'incendie comprenant un dispositif d'indication de tension

Also Published As

Publication number Publication date
EP2213810B1 (fr) 2016-03-30
ITBS20090011A1 (it) 2010-07-29
ES2577549T3 (es) 2016-07-15
IT1392639B1 (it) 2012-03-16

Similar Documents

Publication Publication Date Title
US7163083B2 (en) Safety anchoring device comprising a shock absorber
KR102061329B1 (ko) 송전탑 추락방지용 안전장치
AU744587B1 (en) Improvements in roof anchors
AU2016257768B2 (en) An anchor
AU2002223895B2 (en) Supporting bracket assembly for a horizontal lifeline cable
US9421402B2 (en) Fall detection device for lifeline; lifeline installation equipped with said device; associated fall detection method
US8511628B2 (en) Anchor point
NO338669B1 (no) Sikkerhetsanordning for fallsikring
GB2466054A (en) An anchor point for fall arrest device
EP2213810B1 (fr) Dispositif pour ligne de vie
EP2447445B1 (fr) Méthode pour effectuer un test static d'une ligne de vie
CA2417592A1 (fr) Amortisseur pour dispositif de protection contre les chutes
GB2354052A (en) Support device for safety line
UA125603C2 (uk) Демпфірувальний пристрій для безпечного піднімання на висоту
EP2447444B1 (fr) Un dispositif de support de ligne de vie
WO2005044384A1 (fr) Element d'encrage a absorption d'energie pour systemes amortisseurs de chute
CA2664176C (fr) Point d'ancrage
AU2009210368B2 (en) Roof anchor cable system having shock absorbing means
AU2007200819B2 (en) A safety anchor
CN211693372U (zh) 微型可控线性拉紧装置
CN109958054B (zh) 可调索高阻尼组合式防落梁装置
KR102599062B1 (ko) 변압기용 추락방지시스템
JP2011084899A (ja) 柱体昇降用簡易足場
EP2520740A1 (fr) Dispositif d'accrochage d'un dispositif de protection contre les chutes et système de protection contre les chutes correspondant
JPS5837405Y2 (ja) 昇降時墜落防止用ガイド線

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

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

17P Request for examination filed

Effective date: 20110126

17Q First examination report despatched

Effective date: 20110211

17Q First examination report despatched

Effective date: 20140311

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20151002

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

INTG Intention to grant announced

Effective date: 20160120

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 785582

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602010031567

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2577549

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20160715

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160701

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160630

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160330

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 785582

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160730

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160801

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

Ref country code: DE

Ref legal event code: R097

Ref document number: 602010031567

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20170103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170127

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20171220

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170127

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20180125

Year of fee payment: 9

Ref country code: ES

Payment date: 20180202

Year of fee payment: 9

Ref country code: DE

Payment date: 20180109

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100127

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602010031567

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190801

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190131

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190131

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20200310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190128

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20221214

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20221130

Year of fee payment: 14