Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D3/00—Portable or mobile lifting or hauling appliances
  • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
  • B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
  • B66D3/10—Applications of braking or detent devices
• • 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
  • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
  • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
• • 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
  • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
  • A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
  • B66D1/28—Other constructional details
  • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D3/00—Portable or mobile lifting or hauling appliances
  • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
  • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
  • B66D5/04—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes actuated by centrifugal force
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
  • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
  • B66D5/16—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes for action on ropes or cables

Definitions

• the present invention relates to an ascending / descending device according to the preamble of claim 1.
• Ascending / descending devices are preferably used to pull people or loads up or down on a rope. Preferred areas of application are rescue services or the mobile use of these devices in general.
• the ascending / descending devices essentially have the function of reducing the restraining force when abseiling in connection with securing against uncontrolled falling of the person or load hanging on the rope.
• the rope stop monitors the running speed of the rope, especially in the direction of the abseiling. If the speed is too high, the rope stop is triggered and the rope is blocked directly.
• An object of the present invention is to reduce the wear of the rope by an up / down rope device.
• Another object of the present invention is to provide a device which makes it possible to adapt an ascending / descending device to a wide variety of requirements in use.
• Devices of this type which achieve at least one of the aforementioned objects are specified in the independent claims.
• the further claims name preferred embodiments of the device according to the invention.
• the invention consists in one aspect of providing an adapter on the ascending / descending device, which essentially corresponds to the state of the art, which is suitable for attaching various accessories, such as a holder with an eyelet for hanging a (carabiner) hook or of different roller assemblies to form a pulley.
• the adapter is preferably designed as a plug-in coupling with an automatic locking device, so that accessories can be attached simply by plugging in.
• the wear of a rope by an up / down rope device can also be reduced by moving the rope stop to the tension side. Because of the lower tension on the rope on the tension side, especially if it slips off the operator, a rope stop is to be preferred here, which has better rope guidance and a smoother and yet as precise as possible, i.e. H. if the specified permissible rope speed is exceeded as little as possible, has a triggering sensor for the rope speed.
• Fig. 1 shows a side view of an up / down rope device with an adapter
• FIG. 3 shows a side view of the ascending / descending device according to FIG. 1;
• Fig. 4 shows a holder with eyelet
• Fig. 5 shows an accessory with a roller
• Fig. 6 shows an accessory with a double roller and triple clutch
• FIG. 7 shows a top view of a preferred embodiment of the adapter
• FIG. 8 shows a section according to VIII - VIII in FIG. 7.
• FIG. 10 shows a partially opened 3D view of a rope stop according to the invention
• 11 shows a section through the rope stop when the limit rope speed is exceeded
• FIG. 12 shows the same section as FIG. 3 in the triggered state of the rope stop
• Fig. 13 shows schematically only the role and the
• Fig. 14 shows a view of the pull side of the up / down rope device from the left without rope stop; and 15 shows a view of the up / down device on the load side.
• the ascending / descending device according to FIGS. 1 to 3 essentially consists of the previously known, large-volume roll 2, which is equipped with a backstop.
• Such up / down roping devices are known, for example from the above-mentioned patent application EP-A-0 480 117, which is hereby incorporated into the description, and therefore need not be discussed further.
• the adapter 3 is provided at the bottom of the descender.
• the side plates 4 have sector-shaped extensions 5, between which a block 6 (FIG. 3) is arranged.
• the block 6 is fastened between the side plates 4 by means of the two fixed bolts 7, 11.
• the block 6 corresponds in its contour to the extensions 5, so that it is covered by them.
• the block 6 and the extensions 5 also have a bore for the locking pin 8 and the movable retaining bolt 9, the bore for the latter being an elongated hole.
• a spring element e.g. Compression springs can be arranged in holes in block 6.
• the locking pin 8, which corresponds in its stability to the retaining bolts 9, 11, can be pulled out after pressing the trigger 12.
• the trigger 12 is sunk in a surrounding collar 13, so that the trigger 12 can only be actuated by explicit finger pressure or the like, but not by hitting a larger object, for example.
• the locking mechanism of the locking pin 12 can against Spring force are opened so that the locking pin 8 can be easily inserted into its bore in the adapter 3 and locks itself again when it is fully inserted until it stops.
• Such locking pins are previously known and a detailed description is therefore omitted.
• the block 6 also has a central groove 14, so that together with the two slots 15 formed between block 6 and the respective side plate 5, there are three fastening points on the adapter 3.
• FIGS. 4 to 6 show preferred additional devices, namely a holder 40 for hanging a hook or the like, a simple rope pulley 50 or a double rope pulley 60, for example for forming a corresponding pulley block.
• the locking pin 8 is first removed. Then, the movable retaining bolt 9 is moved to the other end of the elongated hole 10 against spring force, the respective accessories are inserted obliquely into the adapter 3 and suspended on the fixed retaining pin 11 with one recess 46. Then the accessories 40, 50, 60 are pivoted around the holding pin 11 to the adapter 3 and the movable holding pin 9 is released, after which it is pushed back into the holding position and thereby slides into the other recess 46. After that, the additional device is already securely attached to the ascending / descending device. Now the locking pin 8 is inserted through the adapter 3 and at the same time through the corresponding bores 42, 52 and 62.
• All additional devices preferably have at least two couplings 41, 51 and 61, respectively, since the side plates 4 represent the main supporting elements of the ascending / descending device 1 and a coupling by latching in the lateral slots 15 exerts the force directly from the additional devices 40, 50, 60 transfers the side panels.
• the accessory 60 with two independent rollers 63 which is suitable for forming a multiple pulley for large loads, has a triple coupling, of which the central coupling element 64 is latched into the central slot 14.
• the accessories 50 with a single roller 53 and the simplest version 40 which has only one attachment point 43 for a hook, come out with two couplings 51 and 41 for insertion into the side slots 15.
• the couplings 41 essentially consist of a tongue 45 widening on both sides, whereby two opposing U-shaped recesses 46 or a constriction, which are located essentially at the same height, are formed. In each of these two recesses 46 per coupling, the fixed and the movable retaining bolts 11 and 9 engage. Between the two recesses 46 of a coupling 41 there is in each case the bore 42 for the locking pin 8.
• the U-shaped recesses 46 and also the bores 42 of the couplings of an accessory are arranged in alignment with one another.
• the corners at the free end of the tongues 46 are preferably rounded or beveled. As a result, the movable holding base is pushed as far as necessary into the release position by sliding over these slopes.
• FIGS. 7 and 8 show in detail a preferred embodiment 70 of the adapter.
• the main difference is that the function of the movable retaining bolt 9 is combined with that of the locking pin 8.
• the other design features correspond to those of Figures 1 to 3 and have the same reference numerals.
• the movable bolt 71 consists essentially of a sleeve 72 in which two pins 73 are slidably guided. At their inner end they are each penetrated by a transverse pin 74, which in turn passes through an elongated hole 75 on both sides and is anchored in a sleeve 76 with the ends emerging from the sleeve 72.
• the sleeves 76 are slidably disposed on the sleeve 72.
• the two walls of the central groove have a depression 77 around the elongated holes 10.
• the depth of this depression increases in the direction of the end of the elongated holes 10, which corresponds to the holding position of the movable holding bolt 71.
• An additional recess with a pronounced step 78 is tailored as precisely as possible to the dimensions of the bushes 76, so that they fit into this additional recess with little play and an automatic movement of the holding bolt 71 out of the holding position is prevented.
• a compression spring Arranged between the two pins 73 is a compression spring which, on the one hand, in conjunction with the inclination at the bottom of the depression 77, at least facilitates the sliding back of the movable retaining bolt 71 into the locking position, but in any case presses the sleeves 76 firmly into the additional depressions in the retaining position.
• the collars 79 act as guides on both sides for the sleeve 72. In this embodiment, in contrast to the embodiment according to FIGS. 1 to 3, they are so flat that the pins 73 also pass through a flat one Object can be pushed into it. With increased security requirements, the collar 79 can be made so high that this is no longer possible.
• an object that occurs on one side only triggers the movable retaining bolt on one side, while the bush 76 on the other side still holds the retaining bolt 1 in the locking position. If the object then detaches again, the unlocked bush 76 automatically slides back into the additional recess behind the step 78, after which the retaining bolt 71 is completely locked again.
• the elongated hole 10 can also be designed to rise outwards, so that a pull on an attached accessory additionally pushes the movable holding bolt into the holding position. It is therefore also conceivable to omit the spring elements, which push the movable holding bolt into the holding position, or to make them relatively weak.
• FIG. 9 shows a side view of an up / down rope device 101 with a rope stop 102 according to the invention.
• an adapter 3 is present as described above for FIG. 1.
• the rope 103 first passes through the rope stop 102 on the pull side 105, is then looped twice around the roller 104 and leaves the up / down rope device 101 on the load side 106 in the direction of the load. Only the essential, hidden components of the rope stop 102 are shown. A reliable positioning of the rope 103 on the roller 104 and also the necessary lateral displacement is ensured according to the invention by the guide rollers 136 and 137.
• the rope stop 102 is shown in detail in FIGS. 10 to 12. It consists of a bracket 107 with provisions for attachment to the up / down rope device 1, such as holes for screws, etc. There is a rotatably mounted guide roller 108 or 109 at the rope inlet and outlet. In between the actual rope stop 110, which is also rotatably mounted, is such attached that the rope 103 is applied by the guide rollers 108, 109 to the rimmed friction wheel 110 of the rope stop.
• the friction wheel 110 is mounted on the shaft 111 with roller bearings 125 and continues inside the housing 112 as a hollow shaft 124.
• the housing 112 is rotatably supported on the hollow shaft 124 also by means of roller bearings 126.
• the side of the housing 112 facing away from the friction wheel 110 is tightly closed with a pressed-in plastic disk 129 with respect to the shaft 111.
• the two vanes 113 are located inside the housing 112. They surround the hollow shaft 124 essentially in the manner of a cut ring. At one end they are each rotatably connected to the friction wheel 110 via a pin 114 each. At the other end there is a horn 116 which strikes the driving pins 117 when the cable stop is triggered.
• a thin spiral spring 115 closed in a circle is inserted in a groove around the outside of the wings 113 in order to hold the wings 113 in the freewheel position according to FIG. 12. The vanes 113 then rest on the hollow shaft 124.
• the housing 112 has a braking extension 118 which extends over the friction wheel 110 and is in the freewheel position (FIG. 12) on its side facing away from the cable.
• a return spring 119 lies in a groove 140 around the housing 112 and is fastened on the one hand to the housing 112 and on the other hand to the holder 107 on a stud 120.
• the spring 119 causes the housing to be biased against the direction of travel 127 of the rope 103 when abseiling, i. H. the braking extension 118 rests with its thickened rear end 121 on the stop 122 which is attached to the holder 107.
• the brake extension 118 is designed in such a way that when the housing 112 is pivoted in the direction of use, ie counter to the action of the spring 119, it narrows the space to the lower guide roller 108 in such a way that the cable 103 is clamped in.
• the braking extension has a non-slip, toothed surface 123.
• the basic design of the brake extension is designed as a curved wedge that tapers in the direction of use. This z. B. Ropes in the range of 9 - 13 mm can be used without adjustment.
• 11 is a snapshot of the rope stop in the state that corresponds to the maximum abseiling speed being exceeded: the wings 113 have been swung out and have just come into engagement with the drivers 117, so that the housing 112 is still in the rest position.
• the rope stop has clamped the rope 103 and brought it to a standstill: the braking extension 118 is pivoted around the friction wheel 110 and clamps the rope 103 between it and the lower guide roller 108. Since the friction wheel 110 is no longer in contact with the rope 103, the wings 113 are pivoted back into the starting position. This condition remains as long as the train is in the abseiling direction. The rope stop can be released again by pulling the pull end 128 of the rope 103.
• Conceivable changes to the rope stop according to the invention within the scope of the invention include. a. the use of other than the preferred spring elements, replacement of the rollers 108, 109 by other, possibly rigid guide devices, as well as other bearing techniques of the rotatable parts of the rope stop.
• the rope guide on the roller 104 and an optimized surface thereof have proven to be important in normal operation for the reduced wear of the rope.
• the rope 103 is laid around the roller 104 in two turns. With 2 ⁇ turns, the retention force is easily reduced to approx. 15%, while a retention force of approx. 30% occurs under the same conditions with common 1-J turns.
• This Guide rollers consist of Teflon caps 138 which are rotatably mounted on pins 139.
• the rollers 136, 137 could also be arranged directly under the roller 104, but the position shown, in which they are in the vicinity of the first contact of the outgoing cable ends 132, 133 with the roller, has proven to be particularly effective.
• the guide rollers 136, 137 thus prevent the next turn 134, 135 from coming under the free rope ends 132 and 133, respectively.
• Teflon ® polytetrafluoroethylene
• other materials for the caps 138 are also conceivable, which generally combine low coefficients of friction with high stability. It is also conceivable that the rotatability of the caps and rollers 136, 137 is dispensed with.

Landscapes

• Mechanical Engineering (AREA)
• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Emergency Lowering Means (AREA)
• Load-Engaging Elements For Cranes (AREA)
• Ropes Or Cables (AREA)
• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
• Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
• Manufacture, Treatment Of Glass Fibers (AREA)
• External Artificial Organs (AREA)

Applications Claiming Priority (7)

Publications (2)

Family

ID=25692277

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (13)

Family Cites Families (9)

• 1995
  • 1995-12-04 AU AU39215/95A patent/AU3921595A/en not_active Abandoned
  • 1995-12-04 DE DE59510119T patent/DE59510119D1/de not_active Expired - Lifetime
  • 1995-12-04 US US08/750,251 patent/US5911410A/en not_active Expired - Lifetime
  • 1995-12-04 CA CA002236033A patent/CA2236033C/fr not_active Expired - Lifetime
  • 1995-12-04 WO PCT/CH1995/000287 patent/WO1997017107A1/fr active IP Right Grant
  • 1995-12-04 EP EP95936930A patent/EP0859647B1/fr not_active Expired - Lifetime
  • 1995-12-04 AT AT95936930T patent/ATE214623T1/de active

Non-Patent Citations (1)

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