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
  • 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
• • 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

Definitions

• the invention relates to a rotor for a security system with a guide element.
• Such security systems are integrated, for example, in ladders attached to walls of buildings or other towering structures, e.g. High-voltage or other masts, are fixed and allow a secured rise of maintenance personnel.
• the security systems are intended to prevent a crash of the maintenance personnel.
• the guide element of such a security system which may be formed for example 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.
• the runner In the case of a crash of the person connected to the runner via a harness, the runner should prevent a relative movement to the guide element and end the case of the person or at least slow it down.
• There are various possibilities for the design of such runners become known by the relative movement between the guide element and runner allows in the normal case, in the event of a crash, however, is prevented.
• a generic safety system in which the blocking effect for preventing the relative movement is achieved by two brake bodies arranged on a common axis, which are mounted pivotably in a housing of the rotor and asymmetrical with respect to the pivot axis , In a release position of the brake body, these do not touch a guide rail, so that a movement of the rotor relative to the guide rail in both directions is possible. In contrast, in a braking position, in each case a portion of the brake body is pressed against the guide rail, whereby the relative movement between the rotor and the guide rail is frictionally prevented or decelerated.
• the stop element On which the person to be secured can secure himself with the carrying harness, is integrated into an actuating lever, which pivots at a high load in the direction of fall, as caused by a crash of the person, said pivoting movement on the brake body is transmitted.
• a wheel is still provided, which rolls permanently on the guide rail and is connected to a centrifugal clutch.
• 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 actuation of the brake body by means of the centrifugal clutch takes place independently of the actuating lever. This is thus stored in the housing so that it can move the brake body while in the locked position, at the same time, however, initiated by the centrifugal clutch pivoting the brake body is not transmitted to the operating lever.
• a generic securing system in which the housing can be pushed apart transversely to the longitudinal direction of the guide rail, whereby it can be fastened to a guide rail at any desired location and not on the lower or upper side End must be pushed onto the guide rail.
• the anti-rotation device comprises, on the one hand, a blocking element which, in the case of a wrong orientation of the rotor, falls into a recess of a guide bolt and thereby prevents the housing from closing.
• the double anti-twist device of the security system known from EP 1 488 828 B1 is structurally complex.
• the invention therefore an object of the invention to provide a structurally simple rotation for a generic security system.
• a brake body wherein the brake body by means of an actuating mechanism of a release position in which the rotor is movable along the guide element, in a braking position in which the brake body by a (non-positive and / or positive) contact with the guide element Prevents relative movement between the rotor and the guide element in a reverse direction or decelerates, is movable, - (At least) a stop element for fixing a fuse element connected to a person to be secured and
• a securing element is used, which is movable between a release position and a securing position, which prevents in the securing position by a collision with the guide element attaching the rotor to the guide element.
• a safety system comprises, in addition to (at least) one runner according to the invention (at least) one guide element (in particular in the form of a guide rail and / or a (steel) cable).
• the embodiment according to the invention can advantageously make it possible, with only one securing element, to prevent all possibilities of securing the rotor to the guide rail in the wrong orientation.
• By the projecting into the leadership of the housing fuse element not only a collision of the rotor can be achieved when pushed in the wrong orientation on one of the two ends of the guide member, but also a collision in the attempt collapsing an open housing, as basically from EP 1 488 828 B1 is known.
• the fuse element is moved by gravity due to a wrong orientation of the rotor in the securing position.
• a structurally simple and handling-safe configuration of the securing device can be achieved.
• the securing element has at least two mutually (preferably by 90 °) angled leg, wherein in the securing position, one of the legs protrudes into the guide of the housing.
• the housing of the rotor is open to allow placement of the rotor at any point of the guide element.
• the housing may comprise a base body and (at least) a side part partially encompassing the guide element, which is displaceable relative to the base body transversely to the longitudinal direction of the guide, in order to allow the housing to be placed on the guide element in an open position.
• the (or another) side part is slidably guided on (at least) one guide pin, wherein (at least) a further securing element is provided which, in the case of a wrong orientation of the rotor, is located in a gap in the open space Position of the housing between the guide pin and the side part or a part so firmly connected is formed, is arranged, thereby preventing pushing together of side part and body.
• a redundancy of the rotation can be achieved, which can further increase the handling security.
• a locking device may be provided which prevents the displaceability of the side part to the base body, in particular from the closed position, in a locking position.
• the locking device may preferably comprise a locking pin mounted in the side part, which engages in the locking position in a recess of the guide pin.
• the locking device is acted upon by means of a spring element in the locking position.
• 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;
• 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.
• These include an 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 1 1 (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, by means of the formed by the rotor 1 and the guide rail 6 security system to be secured.
• the actuating 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 have a passage opening through which an actuating bolt 14 extends. 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 are brought into a frictional engagement with the two side sections 9 of the guide rail 6 ,
• the actuating pin 14 and thus the brake body 13 can be pivoted by means of the actuating lever 10. This is done in particular when the person secured to the security system crashes and thus the operating lever, starting from the first position shown in the drawings, the starting position, loaded with a significant force (component) down.
• the actuating pin 14 In the first position of the actuating lever 10 and in the release position of the brake body 13, the actuating pin 14 abuts against the upper end of the elongated hole 15. A movement of the actuating lever 10 down is thus transmitted directly to the actuating pin 14 and thus the brake body 13, so that they are pivoted in the direction of their braking position.
• the present when reaching the braking position position of the actuating lever 10 is referred to as its second position.
• 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 rotatably connected via a shaft 20 with a rotor of the centrifugal clutch, which comprises two clutch shoes 21.
• the clutch shoes 21 are pressed outwards due to the rotation of the wheels 19 by the centrifugal forces acting on them. This springs are stretched, the clutch jaws 21 at decreasing Retract angular velocity again. With increasing angular velocity, the clutch shoes 21 are then pressed with increasing pressure against the inside of the clutch housing 18.
• the clutch housing 18 is rotated by the wheels 19 a piece far from a defined critical angular velocity. This rotation is transmitted via the actuating rods 16 connected to the clutch housing 18 on the actuating pin 14, which is pressed together with the brake bodies 13 down, whereby the brake body 3 in the braking engagement with the guide rail 6 arrive.
• the brake body 13 can therefore be actuated independently of each other by both the actuating lever 10 and the centrifugal actuator, in the event of a crash of the secured person usually both actuators together acting on the actuating pin 14 and thus the brake body 13, since both the actuating lever 10th is pulled down by the incipient case of the secured person, as well as an incipient acceleration of the rotor 1 will lead to an activation of the centrifugal brake.
• the arrangement and design of the brake body 13 is such that they act self-reinforcing after an incipient engagement with the guide rail 6, the resulting friction forces thus support the pressing of the brake body 3 to 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.
• the actuating lever 10 is provided to be able to pivot the actuating lever 10 upwards starting from the second position beyond the first position. If the brake bodies 13 are in the braking position, the actuating lever 10 can be moved as a result of the leadership of the actuating bolt 14 in the slot 15 between the second and the first position without this entrains the actuating pin 14. Only when reaching the first position of the actuating pin 14 abuts against the lower end of the slot 15. A further movement of the actuating lever 10 upwards then causes the actuating pin 14 and thus the brake body 13 upwards pivoted and thus can be brought out of the braking engagement with the guide rail 6.
• FIG. 1 In the normal state, this movement of the operating lever 10 is prevented beyond the first position to a third position by a blocking element 22 which is fixed to the housing 2 about a third axis 23 which is perpendicular to the first axis 12 and second axis 17 ,
• the drawings show the locking element 22 in its locking position in which it is supported between the top of the actuating lever 10 and the upper end of the guide opening.
• 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 in the direction of 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 also be provided that the pivoting of the locking element 22 is spring-assisted in its locking position.
• the housing 2 of the rotor 1 can be opened to - in addition to the sliding on the upper or lower end of the guide rail 6 - to allow attachment and securing of the rotor 1 at an arbitrary position of the guide rail 6.
• 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 a total of seven guide pins 25 which are fixed to the main body 3 of the housing 2 and by appropriate Receiving openings of the side part 4 as well a laterally attached to the side part 4 handle 26 extend.
• FIG. 6 shows the rotor 1 in a plan view with the housing 2 open.
• a locking device In order to open the housing 2, a locking device must first be manually released. 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.
• the passage opening 31 forms in its upper portion a circumferential projection 32. Within this projection 32, the diameter is reduced compared to the other sections of the passage opening 31. Within the projection 32, a portion of the upper part 29 of the locking bolt 28 is movably guided, which has a correspondingly small outer diameter for this purpose.
• 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 which substantially completely fills the inner diameter of the passage opening 31. In conjunction with the upper part 29 of the locking bolt 28 thus another paragraph is formed. Between this shoulder and the underside of the projection 32, a spring 33 is held under (pressure) bias, which thereby holds the locking pin 28 in its locking position. in the locking position of the locking bolt 28 this engages with portions 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. As a result, the locking pin 28 locks against displacement of the side part 4 along the guide pin 25th
• 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. The held as a result of a stop on the guide pin 25 in the open position locking pin 28 moves when it reaches the fully closed position of the housing 2 due to the application of the spring 33 back into its locking position.
• the braking device of the rotor 1 only works in one direction of movement. To secure a person against falling, it is therefore necessary to fix the rotor 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 is pivotable about a fourth axis 37, which runs perpendicular to the guide plane spanned by the guide.
• the fourth axis 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 orientation of the rotor 1 due to gravity, is thus without function.
• the securing element 36 pivots due to gravity and thus automatically by 90 °, so that a second of the legs far into the guide groove 5 of the side part 4 protrudes 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 latter 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 attempts to further pivot it.
• the securing element 38 which is slidably guided in a receiving opening 39 of the handle 26.
• 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 runner 1 is held in the wrong orientation when the housing 2 is open (compare FIGS. 11 and 12), then the securing element 38 falls by gravity into a section of the receiving opening
• 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.

Landscapes

• 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)
• Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=47711030

Family Applications (1)

Country Status (4)

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Family Cites Families (8)

• 2012
  • 2012-08-31 DE DE201220008378 patent/DE202012008378U1/de not_active Expired - Lifetime
• 2013
  • 2013-06-10 DK DK13729260.3T patent/DK2890464T3/en active
  • 2013-06-10 WO PCT/EP2013/001694 patent/WO2014032746A2/fr not_active Ceased
  • 2013-06-10 EP EP13729260.3A patent/EP2890464B1/fr active Active

Non-Patent Citations (1)

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