Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C7/00—Component parts, supporting parts, or accessories
  • E06C7/18—Devices for preventing persons from falling
  • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
• • 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
  • 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
• • 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
  • E04G21/3295—Guide tracks for safety lines
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C7/00—Component parts, supporting parts, or accessories
  • E06C7/18—Devices for preventing persons from falling
  • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
  • E06C7/187—Guiding rail
• • 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
  • A62B35/005—Vertical 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
  • A62B35/0043—Lifelines, lanyards, and anchors therefore
  • A62B35/0062—Rail-form lifelines for permanent installation

Definitions

• the invention relates to a rotor for a security system with a guide element.
• Such security systems are integrated, for example, in ladders that are attached to walls of buildings or other towering structures such as high voltage or other masts, and allow the rise of maintenance personnel.
• the security systems should prevent a crash > 0 of the maintenance personnel.
• the guide element of such a security system which may for example be in the form of a guide rail or a rope, runs along the ladder.
• a runner of the security system is movably guided along the guide element. In the event of a crash with the runner over a
• Person wearing harness connected to the runner should prevent a relative movement to the guide element and end the case of the person.
• the stop element on which the person to be secured can secure himself with the snap hook of his harness, integrated in an actuating lever which pivots at a high load in the direction of fall, as this is triggered by the crash of a person, this pivotal movement the brake body is transmitted.
• a wheel is still provided, which rolls permanently on the guide rail and is connected to a centrifugal clutch. When exceeding a critical angular velocity of the wheel, the centrifugal clutch engages and transmits the rotational movement of the wheel via levers on the brake body, which are thereby pivoted to the braking position.
• the invention is based on the idea, in a generic 0 security system, as known for example from DE 20 2009 014 714 U1, to solve the jammed with the guide elements brake body in that the actuating lever is manually loaded opposite to the direction of fall and the brake body thereby be moved out of its braking position.
• a runner according to the invention for a safety system with a guide element (in particular a guide rail and / or a (steel) cable) accordingly comprises a housing forming a guide for the guide element, (at least) a brake body and (at least) an actuating lever connected to the brake body who (at least) one
• stop element such as an eyelet for fixing one with a to be secured
• the brake body can be pressed by the actuating lever against the guide member) from the locking position into the release position can be transferred.
• An inventive security system comprises at least one rotor according to the invention and (at least) one guide element (Guide rail, (steel) rope, etc.).
• the actuating lever for releasing a jammed 5 brake body starting from the second position on the first position in a third position is movable, whereby the brake body, if it is in the braking position, in Direction of the release position is moved.
• this can preferably be pivoted about a pivot axis 0 and asymmetrically with respect to the pivot axis
• an actuating guide is formed with a bolt guided in a slot, the bolt abuts a longitudinal axial end of the slot when the brake body by means of the actuating lever of the release 5 in the Brake position is moved.
• the bolt abuts the other longitudinal axial end of the slot when the brake body is moved by means of the actuating lever from the brake to the release position.
• the operating guide ensures that the brake body by means of the actuating lever is indeed movable in both pivoting directions, but at the same time by the! 0 distance of the two attacks formed by the slot one
• This second actuating mechanism may preferably be on the
• a jammed brake body can be solved by the operating lever by this is moved from the first in the direction of the third position.
• a backup should be provided which prevents the operating lever is moved unintentionally in the third position in which this dissolves a jammed brake body or could prevent movement of the brake body by the centrifugal actuator in the braking position.
• a manually releasable locking element can be provided, which prevents a movement of the actuating lever in the third position in its locking position.
• the locking element is not solvable when the actuating lever is in the first position.
• To release the locking element may thus be required that the actuating element is first moved in the direction and preferably until reaching the second position, whereby, if not already done, the brake body is brought into the braking position.
• a structurally simple and therefore inexpensive embodiment of such a rotor can provide that the actuating lever is supported in the second position on the locking element on the housing. If the blocking element is then to be loosened, this can preferably be released by pivoting in the direction of the actuating lever about an axis arranged transversely to the direction of movement of the actuating element, for which purpose the actuating lever is first brought out of the way, i. must be moved in the direction of the second position.
• a further preferred embodiment of the rotor according to the invention can also provide a spring element which is biased in a movement of the actuating lever from the first to the third position and thereby retracts the actuating lever in the direction of the first position. It can thereby be achieved that the actuating lever, as soon as it is no longer manually loaded against the fall direction, automatically moves back into the first position. In this case, it can then be particularly preferably also provided that the blocking element, as soon as the operating lever reaches the first position, automatically locks again. As a result, the runner can reset automatically after releasing a jammed brake body back to the starting position in which the braking device is fully functional.
• FIG. 1 shows a rotor according to the invention in a perspective view
• FIG. 2 shows a guide rail for the rotor according to FIG. 1 in a cross section
• Fig. 3 the runner with snap hook in a front view
• Fig. 4 the rotor in a section along the plane IV - IV in Fig. 3;
• Fig. 5 the runner without front cover in a perspective view
• FIG. 6 shows the rotor in a plan view with the housing open
• Fig. 7 the rotor in a side view in the correct orientation
• Fig. 8 the rotor in a section along the plane VIII - VIII in Fig. 7;
• Fig. 9 the rotor in a side view in the wrong orientation
• FIG. 10 shows the rotor in a section along the plane X - X in FIG. 9;
• Fig. 11 the rotor in a side view in the correct orientation
• FIG. 12 shows the rotor in a section along the plane XII - XII in FIG. 11;
• Fig. 13 the rotor in a side view in the wrong orientation
• FIG. 14 shows the rotor in a section along the plane XIV-XIV in FIG. 13;
• FIG. 15 parts of the rotor in a perspective view
• FIG. 16 shows the rotor in a section along the plane XVI-XVI in FIG. 3
• FIG. 16 shows the rotor in a section along the plane XVI-XVI in FIG. 3
• bottom and top refer to the corresponding orientation with respect to gravity in the case of a correct, ie. functional orientation of the runner.
• the illustrated rotor 1 comprises a housing 2 with a base body 3 and two side parts 4 connected to the base body 3.
• the side parts 4 each have a guide groove 5, which together form a guide for a guide rail 6 shown in cross-section in FIG.
• the guide rail 6 has in cross-section a U-shaped base portion with a central leg 7 and two arranged at right angles thereto, outer legs 8.
• a lateral section 9 adjoins the outer legs 8 at right angles to the outside (“hat profile”) .
• the free longitudinal edges of the side sections 9 are guided in the guide grooves 5 of the side parts 4 of the housing 2, so that in principle a movement of the Runner 1 in both directions along the guide rail 6 is possible.
• the guide rail 6 can for example be fastened to a building wall, for which purpose through openings are provided in the central leg 7 at regular intervals, through which screw connections can extend.
• the main body 3 forms a receiving space within which functional parts of the rotor 1 are arranged.
• actuating lever 10 which projects through a guide opening in a front plate of the main body 3 and forms an eyelet.
• a snap hook 11 (in Figs. 1, 5 and 6 not shown) attached, in turn, a safety belt of a personal protective equipment of a person can be hooked, secured by means of the trained by the rotor 1 and the guide rail 6 security system shall be.
• the operating lever 10 is rotatably mounted on a first axis 12.
• This axle 12 also rotatably receives two brake bodies 13, which are formed asymmetrically with respect to this axis 12.
• the two brake bodies 13 In an operating section, the two brake bodies 13 have a passage opening through which an actuating bolt 14 extends. 5 This connects the two brake body 13 with each other.
• the actuating bolt 14 also extends through a part-circular slot 15 of the actuating lever 10 and through openings at the lower ends of two actuating rods 16 which are connected at their upper ends via a second axis 17 to the housing 18 of a centrifugal clutch.
• the brake body 13 can be pivoted about the first axis 12 (down) from the release position shown in the drawings in a braking position in which the brake body 13 brought into a frictional engagement with the two side sections 9 of the guide rail 5 are.
• the actuating pin 14 and thus the brake body 13 can be pivoted by means of the actuating lever 10. This occurs in particular when the person secured to the security system crashes and thereby the
• the actuating pin 14 and the brake body 13 can continue to be pivoted by means of a centrifugal actuator.
• a centrifugal actuator This includes, in addition to the actuating rods 16 and the centrifugal clutch two wheels 19, which are arranged laterally next to the centrifugal clutch and roll on the side portions 9 of the guide rail 6.
• the wheels 19 are over a Shaft 20 rotatably connected to a rotor of the centrifugal clutch, which comprises two clutch shoes 21.
• the clutch shoes 21 are pressed by the rotation of the wheels 19 by the centrifugal forces acting on them and to the outside. This springs are stretched, the clutch jaws 21 at
• Actuating pin 14 transmitted, which is pressed together with the brake bodies 13 down, causing the brake body 13 enter the braking engagement with the guide rail 6.
• the brake body 13 can therefore be actuated independently by both the operating lever 10 and the centrifugal actuator, wherein in case of a crash of the secured person usually both actuators commonly act on the actuating pin 14 and thus the brake body 13, since both the actuating lever 10th through the
• the arrangement and configuration of the brake body 13 is such that they act self-reinforcing after a starting engagement with the guide rail 6; the resulting friction forces thus support the pressing of the brake body 3 against the guide rail 6. This can cause the brake body 13 after the activation of the rotor 1 relatively firmly jammed with the guide rail 6 and thus can be solved only with difficulty.
• this movement of the actuating lever 10 is prevented beyond the first position to a third position by a blocking element 22 which is mounted on the housing 2 about a third axis 23, which is perpendicular to the first axis 12 and the second axis 17 is attached.
• the drawings show the blocking element 22 in its locking position, in which it is supported between the upper side of the actuating lever 10 and the upper end of the guide opening 5.
• the actuating lever 10 - if it is in the first position - from this in the direction of the second position, i. to be moved down.
• the resulting space between the top of the actuating lever 10 and the locking element 22 allows this to pivot about 90 ° down.
• the blocking element 22 releases the upper part of the guide opening so that the actuating lever 10 can now be moved upwards beyond the first position in order to release the jammed brake body 13 from the guide rail 6.
• the actuating lever 10 is again moved a little way beyond the first position 5 out towards the second position, thereby allowing the locking member 22 to pivot back into its locking position.
• This movement of the actuating lever 10 is supported by a spring 24 which is biased in the movement of the actuating lever 10 in the direction of the third position. It can likewise be provided that the pivoting of the locking element 22 into its locking position is also spring-assisted.
• the housing 2 of the rotor 1 can be opened to - in addition to the pushing on the upper or lower end of the guide rail 6 - attaching and securing the rotor 1 at any point of the guide rail 6 to enable.
• An opening of the housing 2 is effected by a displacement of one of the side parts 4 transversely to the direction of movement or the longitudinal direction of the guide rail 6.
• This side part 4 is guided on several (in the present case seven) guide pin 25 which is attached to the main body 3 of the housing 2 5 are and extend through corresponding receiving openings of the side part 4 and a laterally attached to the side part 4 handle 26.
• FIG. 6 shows the rotor 1 in a plan view with the housing 2 open.
• This comprises an approximately 90 ° angled push handle 27 which is connected to the upper end of a locking bolt 28 (screwed).
• the locking bolt 28 consists of two parts 29, 30, which are screwed together (see Fig. 14), and is slidably disposed within a through hole 31 of the side part 4.
• 5 passage opening 31 forms in its upper portion a circumferential projection 32.
• the diameter is reduced compared to the other sections of the passage opening 31.
• a portion of the upper part 29 of the locking bolt 28 is movably guided, which has a correspondingly small outer diameter
• This portion of the upper part 29 of the locking bolt 28 ends up in a shoulder which serves as a stop for the movement of the locking bolt 28 down. Furthermore, the upper portion 29 of the lower part 30 of the locking bolt 28 has an outer diameter, the inner diameter of the through hole 31 is substantially complete
• Sections which are characterized by relatively large outer diameter, in grooves 34 with a part-circular cross section, which are formed on three of the guide pins 25 circumferentially.
• the locking pin 28 locks against displacement of the side part 4 along the guide pin 25th If the housing 2, however, be opened, the locking pin 28 is pushed manually by means of the push handle 27 and against the force of the spring 33 a piece up, whereby portions of the locking bolt 28 having a relatively small outer diameter, in addition to the guide pin 8 with Grooves are brought.
• the guide pin no longer engages in the grooves 34, so that then the side part 4 can be moved with the locking pin 28 along the guide pin 25.
• the opened housing 2 can thereby be attached to the guide rail 6 and fastened by closing the housing 2.
• the closing of the housing 2 is effected by pushing together side part 4 and residual housing. In this case, the held as a result of a stop on the guide pin 25 in the open position locking bolt 28 moves when reaching the
• the braking device of the rotor 1 only works in one direction of movement. In order to secure a person against falling, it is therefore necessary to fix the runner 1 in the correct orientation on the guide rail 6. To prevent attachment in the wrong orientation two independently functioning anti-rotation devices are provided.
• a T-shaped securing element 36 is provided in a receiving opening 35 of the non-displaceable side part, which pivotable about a fourth axis 37, which runs perpendicular to the guide plane spanned by the guide.
• the fourth axis in this case runs in the vicinity of the end of a first leg of the securing element 26.
• the securing element 36 is completely within the receiving opening 35 with a correct alignment of the rotor! 0 1 due to gravity. is thus without
• the fuse element 36 pivots due to gravity and thus automatically by 90 °, so that a second of the legs in the guide groove 5 of the side part 4 projects and thereby prevents the correct recording of the associated longitudinal edge of the guide rail 6.
• the securing element 36 prevents not only a closing of the housing 2 in the central attachment of the rotor 1 on the guide rail 6 but also when pushed onto the lower or upper end. In an attempted sliding onto the lower end, the lower end of the associated side section 9 of the guide rail 6 collides with the second leg of the securing element 36 and tries to further pivot it.
• Another security element 38 which is displaceably guided in a receiving opening 39 of the handle 26, acts as a further security against rotation.
• the securing element 38 is located at the correct orientation of the rotor 1 due to gravity in a portion of the receiving opening 39, in which this is without function (see Fig .. 9 and 10). If, however, the rotor 1 is held in the wrong orientation when the housing 2 is open (cf., FIGS. 1 and 12), then the securing element 38 falls by gravity into a section of the receiving opening 39, in which it is arranged in front of the front side of one of the guide pins 25. A collapse of the housing 2 is then not possible due to a collision of this guide pin 25 with the securing element 38.
• a middle part of the main body 3 and the side parts 4 of the housing 2 are made of light metal and in particular aluminum and can be advantageously prepared as die-cast components. As a result, lightweight yet stable components can be created.
• For reinforcement of the base body 3 comprises on both sides of the central part still two reinforcing plates 40 of (stainless) steel, or in which many of the functional parts are attached or stored.
• the handle 26 is preferably made of plastic for cost and weight reasons.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Mechanical Engineering (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Emergency Lowering Means (AREA)
• Braking Arrangements (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=47711029

Family Applications (1)

Country Status (3)

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Citations (1)

Family Cites Families (4)

• 2012
  • 2012-08-31 DE DE202012008377U patent/DE202012008377U1/de not_active Expired - Lifetime
• 2013
  • 2013-06-10 WO PCT/EP2013/001693 patent/WO2014032745A2/fr not_active Ceased
  • 2013-06-10 EP EP13730803.7A patent/EP2890461B1/fr active Active

Patent Citations (1)

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