EP1808563A2 - Système de protection en cas de rupture de câble - Google Patents

Système de protection en cas de rupture de câble Download PDF

Info

Publication number
EP1808563A2
EP1808563A2 EP07075032A EP07075032A EP1808563A2 EP 1808563 A2 EP1808563 A2 EP 1808563A2 EP 07075032 A EP07075032 A EP 07075032A EP 07075032 A EP07075032 A EP 07075032A EP 1808563 A2 EP1808563 A2 EP 1808563A2
Authority
EP
European Patent Office
Prior art keywords
cable
protection mechanism
gripper
break protection
cable break
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Withdrawn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
EP07075032A
Other languages
German (de)
English (en)
Other versions
EP1808563A3 (fr
Inventor
Antonius Johannes Peterse
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.)
Flexi Force BV
Original Assignee
Flexi Force BV
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 Flexi Force BV filed Critical Flexi Force BV
Publication of EP1808563A2 publication Critical patent/EP1808563A2/fr
Publication of EP1808563A3 publication Critical patent/EP1808563A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/003—Anti-dropping devices
    • E05D13/006—Anti-dropping devices fixed to the wing, i.e. safety catches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Definitions

  • the invention relates to a cable break protection mechanism for an overhead door according to the preamble of claim 1.
  • Such a cable break protection mechanism is generally known.
  • Overhead doors are generally known and are often used in industrial as well as in residential uses.
  • overhead doors have a door leaf composed of segments that are hingedly interconnected relative to a substantially horizontal axis.
  • the door leaf is provided, on two opposite, upstanding sides, with guide rollers.
  • the guide rollers are included in guide sections extending along and beyond a door opening.
  • the overhead door comprises two hoisting cables that are each coupled to the door leaf adjacent the upstanding sides.
  • the hoisting cables cooperate with a balancing device for compensating the weight of a part of the door leaf suspended from the hoisting cables.
  • the hoisting cables are each connected to the door leaf via a cable break protection mechanism.
  • the cable break protection mechanism comprises a base, mounted, as a rule, on the door leaf, and a gripper, connected to the base.
  • the gripper is movable between a normal position in which, during use, the gripper runs clear along the guide section, and an emergency position in which the gripper impacts the guide section.
  • the gripper is biased towards the emergency position, and, during use, is maintained in the normal position through tensile force of the hoisting cable connected to the cable connection.
  • the gripper is, normally speaking, maintained in the normal position in which it runs clear in the guide section.
  • the gripper moves due to its bias to an emergency position in which the gripper impacts the guide section.
  • the gripper impacting the guide section blocks movement of the door leaf relative to the guide section and fixes the door leaf relative to the guide section.
  • the known cable break protection mechanism is provided with an adjustment mechanism.
  • the adjustment mechanism With the aid of the adjustment mechanism, a possible difference in length of the hoisting cables upon installation can be compensated so that the door leaf can be suspended in the guide in a "straight" manner. In this manner too, the tension in the two cables can be rendered substantially equal.
  • the adjustment mechanism comprises a wire end coupled to the free end of the cable, and included in a guide bush. With the aid of an adjusting nut, the wire end can be adjusted relative to the guide bush.
  • a drawback of the known adjustment mechanism is that it can only be set in one direction, i.e. the door leaf can only be hung somewhat lower via the adjustment mechanism. Further, also, the adjusting nut is difficultly accessible. Another drawback is that in this design, the cable end is complex, and, considering the CE-standards prevailing for such connections, is not easy to make.
  • Patent publication WO 95/24541 describes a cable break protection mechanism whose gripper is adjustable between a normal position and an emergency position.
  • the cable leans against the lever against a spring force and is attached to the door leaf.
  • the cable is not connected via an adjustment mechanism to the gripper.
  • Patent publication WO 03/087506 describes a cable break protection mechanism whose gripper is adjustable between a normal position and an emergency position.
  • the gripper comprises a lever, of which one end is connected to a cable and another end is connected to a sharp wedge. However, the gripper is not connected via an adjustment mechanism to the cable.
  • Patent publication US 2 095 695 also describes a cable break protection mechanism whose sharp wedge cooperates to a chain via a lever but not via an adjustment mechanism.
  • the object of the invention is a cable break protection mechanism of the type mentioned in the preamble, with which, while maintaining the advantages, the drawbacks mentioned can be prevented.
  • the invention provides a cable break protection mechanism according to claim 1.
  • a lever in the adjustment mechanism, via the adjustment mechanism, a sufficiently great force can be exerted for setting the door leaf higher, against gravitational force, without damaging the adjustment mechanism.
  • the distance can be set between gripper and the cable connection.
  • the connection of the cable end to the adjustment mechanism can be simplified.
  • the invention also relates to an overhead door provided with a cable break protection mechanism.
  • hoisting cables are involved, these are understood to include not only hoisting cables but also other types of flexible hoisting means such as, for instance, hoisting chains, ropes or toothed belts.
  • the invention will be further elucidated on the basis of an exemplary embodiment which is represented in the drawing.
  • the exemplary embodiment involves a preferred embodiment of the invention and is given by way of non-limitative illustration of the invention.
  • a cable break protection mechanism 1 is represented for an overhead door 30.
  • the cable break protection mechanism 1 comprises a base 2 for mounting on a door leaf 31 and a gripper 3 connected to the base 2.
  • the gripper 3 is movable between a normal position, shown in the Figures, in which, during use, the gripper 3 runs clear along a guide section 35 of an overhead door 30, and an emergency position (not shown) in which the gripper 3 impacts the guide section 35.
  • the emergency position is achieved by pivoting the gripper 3 clockwise, as shown in Fig. 2, until the gripper 3 impacts the guide section.
  • the gripper 3 is coupled via an adjustment mechanism 4 to a cable connection 5, and is biased towards the emergency position.
  • the gripper 3 is maintained in the normal position through tensile force P of a hoisting cable 6 connected to the cable connection 5.
  • the adjustment mechanism 4 comprises a lever 7.
  • the cable connection 5 can be adjusted both in the direction of the tensile force of the hoisting cable and counter thereto, as will be further elucidated hereinbelow.
  • the door leaf 31 can be adjusted not only in downward direction, but also in upward direction when aligning the door leaf relative to the guide.
  • the distance between the gripper and the cable connection can be set with the lever.
  • the lever 7 has a first end 8 bearing the cable connection 5.
  • the cable connection 5 is designed as a pin 10 provided with a flange head 9, which pin cooperates with a loop 11 at the end of the hoisting cable 6.
  • the loop 11 can be provided with a thimble.
  • the lever 7 cooperates with the gripper 3 adjacent a second end 12.
  • the lever 7 is connected to the base 2 for articulation between the first end 8 and the second end 12 to the base 2.
  • two arm parts 7a, 7b of the lever reach outwards relative to a central hinge pin 13.
  • the gripper 3 comprises a wedge arm 14 hingedly connected to the base 2. On its free end, the wedge arm 14 bears a sharp part, designed here as a chisel blade 15. In this exemplary embodiment, the pivots of the lever 7 and the wedge arm 14 coincide.
  • the second end 12 of the lever 7 is coupled at an adjustable interspace to the free end of the wedge arm 14.
  • the adjustable interspace is realized via an adjustment bolt 16.
  • the adjustable interspace can be used for adjusting the door upward or downward.
  • the adjustment bolt has a head 17 which is freely accessible in the normal position. To that end, the head 17 of the adjustment bolt 16 is received in a plate-shaped upper part 18 of the wedge arm 14. The adjustment bolt 16 reaches with its shaft 19 through an opening in the flat upper plate 18 of the wedge arm 14. Then, the shaft 19 reaches through an opening 20 in the second end 12 of the lever 7. A self-securing nut 21 received on the shaft 19 ensures the coupling between the lever 7 and the wedge arm 14. When loosening the adjustment bolt 16, the nut 21 moves downwards and the second end 12 of the lever 7 will follow under the influence of the tensile force exerted by the hoisting cable 6 on the cable connection on the first end 8 of the lever 7. Here, a further nut for securing the adjustment is not necessary as the nut 21 is secured against rotation in a chamber of the second end 12 of the lever.
  • the adjustment mechanism 4 is represented in the uppermost position. From this position, the door leaf can be set upward relative to the hoisting cable 6 by tightening the adjustment bolt 16. Normally, the adjustment mechanism 4 is supplied in an intermediate adjusting position in which the self-securing nut 21 is situated adjacent the middle of the length of the shaft 19, i.e. farther away from the head 17 than shown in the Figures. In Fig. 2b, the adjustment mechanism 4 is represented in the lowermost position. The adjustability is limited in the lowermost position through contact of a stop on the lever 7 against the base 2 and, in the uppermost position, through contact of the lever 7 with the gripper 3.
  • the base 2 and the gripper 3 are provided with end stops 22, 23 cooperating in the normal position which, during use, define the normal position in that further pivotal movement of the wedge arm 14 under the influence of the tensile force exerted by the hoisting cable 6 on the lever 7 is blocked.
  • the gripper is in the normal position due to spring action.
  • the wedge arm 14 is connected via a pin joint 24 to the base 2 and the spring action is realized with the aid of a torsion spring 26 borne on the hinge pin 13 and acting between the base 2 and the wedge arm 14.
  • the wedge arm 14 is energized clockwise under the action of the spring 26, to thus impact the guide sections 35 when the tensile force P falls away in the event of cable breakage.
  • the base 2 comprises a substantially flat plate 27. In the normal position, the wedge arm 14 is oriented substantially transversely to the flat plate 27.
  • the cable break protection mechanism is further provided with a covering cap 28 covering the mechanism after assembly and operation of the adjustment mechanism 4
  • Fig. 5 shows how the cable break protection mechanism 1 is accommodated in an overhead door 30.
  • Fig. 5 shows an overhead door 30, comprising a door leaf 31 provided on two opposite sides 32, 33 with guide rollers 34.
  • the guide rollers are included in guide sections 35 extending along and beyond a door opening 37.
  • only guide rollers 34 are shown on one opposite side 32 of the overhead door 30.
  • the overhead door 30 further comprises two hoisting cables 6, each connected adjacent one of the opposite sides 32, 33 of the door leaf 31 to the door leaf and which form a connection between the door leaf 31 and a balancing device 39 for compensating the weight of a part of the door leaf 31 suspended from the hoisting cables 6.
  • the ends of the hoisting cables 6 are each connected to a cable connection 5 of a cable break protection mechanism 1 mounted with its base 2 on the door leaf 31 of the overhead door 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
EP07075032A 2006-01-13 2007-01-12 Système de protection en cas de rupture de câble Withdrawn EP1808563A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1030916A NL1030916C2 (nl) 2006-01-13 2006-01-13 Kabelbreukbeveiligingsmechanisme.

Publications (2)

Publication Number Publication Date
EP1808563A2 true EP1808563A2 (fr) 2007-07-18
EP1808563A3 EP1808563A3 (fr) 2007-11-14

Family

ID=37075263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07075032A Withdrawn EP1808563A3 (fr) 2006-01-13 2007-01-12 Système de protection en cas de rupture de câble

Country Status (2)

Country Link
EP (1) EP1808563A3 (fr)
NL (1) NL1030916C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8347824B2 (en) 2010-06-24 2013-01-08 David Christopher Marshall Combination retractable leash assembly and wearable locket for companion pet
EP2514896A3 (fr) * 2011-04-20 2014-12-17 Alpha Deuren International BV Dispositif de sécurisation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095695A (en) * 1936-08-28 1937-10-12 Gen Door Company Guide for safety devices on doors
WO1995024541A1 (fr) * 1994-03-10 1995-09-14 Bernd Lucas Securite anti-chute pour portes ou volets roulants
WO2003087506A1 (fr) * 2002-04-15 2003-10-23 Hörmann KG Brockhagen Porte dotee d'un dispositif de securite

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095695A (en) * 1936-08-28 1937-10-12 Gen Door Company Guide for safety devices on doors
WO1995024541A1 (fr) * 1994-03-10 1995-09-14 Bernd Lucas Securite anti-chute pour portes ou volets roulants
WO2003087506A1 (fr) * 2002-04-15 2003-10-23 Hörmann KG Brockhagen Porte dotee d'un dispositif de securite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8347824B2 (en) 2010-06-24 2013-01-08 David Christopher Marshall Combination retractable leash assembly and wearable locket for companion pet
EP2514896A3 (fr) * 2011-04-20 2014-12-17 Alpha Deuren International BV Dispositif de sécurisation

Also Published As

Publication number Publication date
EP1808563A3 (fr) 2007-11-14
NL1030916C2 (nl) 2007-07-17

Similar Documents

Publication Publication Date Title
US4892508A (en) Safety guide support for pivoting pulley
EP2230370B1 (fr) Charnière doté d'un élément intermédiaire, fenêtre comprenant lesdites charnières et utilisation de ladite charnière
EP1553253A1 (fr) Charnière d'ouverture
CZ296380B6 (cs) Zarízení pro zajistení osob proti pádu
WO1998039542A1 (fr) Mecanisme d'arret de chute pour portes a deplacement vertical
JP6063057B2 (ja) 可撓性カーテン形式のドア板を有するロールゲート
JP2009166956A (ja) エレベータのドア装置
EP0330129A2 (fr) Ferme-portes
EP1808563A2 (fr) Système de protection en cas de rupture de câble
US7484332B2 (en) Door comprising a locking device
CN101223328A (zh) 铰链
WO2006082460A1 (fr) Dispositif de prevention de chute destine a empecher la chute d'un contrepoids d'ascenseur dans le cas ou ses elements de suspension rompent et contrepoids d'ascenseur dote de celui-ci
US20120167474A1 (en) Door comprising a drive system
JP2842513B2 (ja) エレベータドア装置
US10480231B2 (en) Garage door safety device
GB2172041A (en) Door with spring lifting mechanism
CN1977088B (zh) 卷帘门装置
US20200263468A1 (en) Lower door section having a folding roller bracket
CN101200258A (zh) 电梯限速器张紧装置
EP1136723B1 (fr) Dispositif de blocage de corde
EP3073030B1 (fr) Mécanisme de frein pour pylône d'équipement
CN110790115A (zh) 空动组件
PL179532B1 (pl) Urzadzenie zabezpieczajace przed opadaniem PL
EP3239089B1 (fr) Turbine éolienne présentant un système d'ascenseur
JP5246837B2 (ja) オーバーヘッドドア

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: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

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: 20080515