DE202011051638U1 - Fall protection for elevator systems - Google Patents

Abstract

Fall protection for elevator installations, in which a rollable material (4) can be rolled up and down by at least one retractor (3), characterized in that the rollable material (4) is deflected by the retractor (3) by means of a deflection device (20) in that, after the deflection, the rollable material (4) points in the vertical direction in the activated state.

Description

The invention relates to a roll-up fall protection for elevators, which is used instead of conventional cabin door aprons in the car door sill area or instead of a railing on the cab roof.

A cabin door apron in elevators is, according to European elevator standards, a vertical part with a length of 750 mm, which is flush with the car door sill, pointing downwards and intended to prevent persons from falling into the elevator shaft in the event of a person being released.

So far, it is common that low shaft pit depths can be realized from about 300 mm. The trend is towards even lower shaft pit depths. The length of the apron required according to elevator standards hinders the realization of the shallow shaft pit depths, as it would inevitably lead to a collision between the skirt and the shaft pit floor.

To solve this problem, various solutions are known. There are both telescopic, swiveling and, if necessary, manually attachable aprons. Also rollable and foldable aprons are known. These inventions are described, for example, in EP 2 042 463 B1 . EP 1 524 234 B1 . EP 1 215 159 B1 . EP 1 118 576 B1 . DE 10 2008 038 409 A1 . DE 10 2008 038 408 A1 . DE 1 052 459 A1 . DE 20 313 911 U1 . EP 2 138 443 A1 ,

A disadvantage of the telescopic apron for a lift car after EP 2 042 463 B1 is that for reasons of stability, complexity, and space requirements, it can be at most four levels. Including underride and buffer stroke results in a minimum shaft pit depth of 400 mm. Telescopic aprons have the further disadvantage that they are automatically moved together when driving into the lowest stop and thereby cause noise, or they are activated only when people are exempted by the elevator attendant. This involves the risk that this crashes even in the elevator shaft, before the apron is extended. Furthermore, there is a risk of crushing during manual extension of the apron.

Swiveling aprons, as in EP 1 524 234 B1 . EP 1 215 159 B1 and EP 1 118 576 B1 described, have the disadvantage that they protrude in the folded (inactive) state in an area below the cabin floor. Below the cabin floor are the support arms of the catch frame and the Aufsetzpuffer. The apron projecting into this area is very cumbersome and not feasible in every case. With several cabin entrances to an elevator car, the inactive aprons collide. Over-corner accesses are therefore not feasible with this solution.

Manually fastened aprons, as in EP 1 118 576 B1 described, must be deposited near the elevator shaft and be available in case of personal exemption. Since it is conceivable to free people at any stop, this is a logistical problem. There is a risk that the apron will not be used, which would create a great danger.

Another problem is that with a skirt height of only 750 mm, there is still a great residual risk of falling into the elevator shaft, namely when the elevator stops at a height at which trapped persons can barely leave the elevator, and at the same time below the extended skirt remains a gap of more than 300 mm. Ideally, the active apron would have to be about as long as the shaft door height. This can not be achieved with the previously named solutions.

The cabin door aprons offer a solution to this problem DE 10 2008 038 409 A1 and DE 10 2008 038 408 A1 , However, these statements also contain significant deficiencies.

To avoid injury, the front of the apron must form an unbroken smooth surface, flush with the car door sill. at DE 10 2008 038 409 A1 a roll-up apron is rolled up directly vertically on a retractor. As a result, a threshold flush unbroken smooth apron surface is not feasible. When the flush-mounted apron is installed flush with the threshold, a larger gap between the skirt and the threshold unfavorably arises when the apron rolls off. The less rollable material is on the retractor, the larger the gap. The larger gap creates a risk of crushing when re-rolling.

If the roll-up apron is installed slightly offset to the rear of the cabin and before a fixed apron attached, it must have a chamfer because of the risk of crushing in the unlocking zone. The rollable material is then no longer flush with the front edge of the threshold.

Another serious disadvantage of this solution mentioned is that no locking device is provided for keeping the roll-up material in a tight position. When a person falls against the retractable cabin door apron, the flexible, Rollable material in the elevator shaft, whereby the risk for this person is to fall through the resulting side openings in the elevator shaft.

Another disadvantage of in DE 10 2008 038 409 A1 described solution is that the rollable apron must always be located below the car door sill. Thus, the height of the inactive apron depends on the diameter of the retractor and the threshold height.

Foldable cabin door aprons are off DE 10 2008 038 408 A1 . DE 10 052 459 A1 . DE 20 313 911 U1 and EP 2 138 443 A1 known. In order to prevent the escape of the rollable material in the direction elevator shaft are at DE 10 052 459 A1 . DE 20 313 911 U1 and EP 2 138 443 A1 Used slat cross profiles, which are guided between extendable supports. These slat cross profiles can not be rolled up as they are attached to the columns. Rather, they are strung in the active state in the vertical direction one after the other. This results in an overall height depending on the thickness and the number of transverse profiles. The inactive apron thus has a minimum space requirement (installation height) below the cabin door apron, which corresponds to this total height. In DE 10 2008 038 408 A1 neither cross profiles nor a locking device are provided for keeping the roll-up material, thereby resulting in the same disadvantages as in DE 10 2008 038 409 A1 result.

In the foldable aprons, the elastic material in the inactive state is stacked one behind the other. This layering inevitably takes place directly below the car door sill. With this arrangement, it can not be ruled out that the individual layers fold in the direction of the shaft door. This is unfavorable because the elastic material stuck in the elevator ride on the shaft doors and can be damaged.

Another disadvantage of all known solutions is that the aprons are activated only when a shaft door is opened with a Entriegelungsdreikant. For manual systems, activation can only be done manually by the lift attendant. In none of the known systems, when the car is unintentionally moved out of the station, the inactive aprons are activated. Inadvertent movement of the car from the stop is a movement of the car with the door open away from the stop, not initiated by the controller within the unlocking zone. With inactive aprons, there is a risk that the remaining apron length is too short and persons who get rid of themselves in this situation can fall into the elevator shaft.

According to European standards, a railing must be installed on the cabin roof if the distance between the shaft wall and the cabin wall is more than 300 mm. The railing must be at least 700 mm long and should prevent fitters from falling into the elevator shaft. The trend is towards ever smaller shaft heights. The required according to elevator standards length of the railing is hindering in the realization of low shaft heights, as it would inevitably come to a collision of the railing with the pit head.

Also to solve this problem are known as in the cabin door aprons telescopic and swivel versions. Activation of these systems is always done manually by the installer. The fitter enters the cabin roof and at the same time must put the railing in the active state. There is a risk that he falls into the elevator shaft.

The object of the invention is to provide a fall protection for elevator systems with small shaft pit depths and / or low shaft head heights, which solves the problems mentioned and thus provides a much greater level of security. The fall protection should reduce the listed risks of falling and injury and manage with a much smaller installation height. At the same time, the scope of fall protection should be as large as possible so that it can be used universally for a wide variety of elevator types. It should be so flexibly designed that it can be used instead of conventional cabin door aprons in the area of the car door sill as well as in place of a railing on the cab roof.

The object is achieved by the features of claim 1. Ausgestaltende features are described in the subclaims 2 to 13.

The fall protection according to the invention for elevator installations, in which a rollable material can be rolled up and down by at least one retractor, is characterized in that the rollable material is deflected by the retractor by means of a deflection device such that the material that can be rolled up after the deflection in the activated state vertical direction shows.

The present invention solves the above problems by realizing a very compact fall protection installed as a replacement for conventional cabin door aprons in the area of the car door sill or in place of a railing on the car door Cab roof. It can even be integrated in the cabin floor or the cabin roof.

In one embodiment, the fall protection consists of a housing in which one or more retractors, a rollable material and a locking device can be integrated. The rollable material is passed through a narrow opening (slot) in the housing to the outside, whereby it is deflected and then continues vertically, down when applied as a car door sill or up when used as a cabin roof railing.

By this arrangement it is achieved that the rollable material is always flush with the car door edge or the cabin roof outer edge. At the free end of the rollable material, a receiving profile is attached. The slot pointing outwards towards the shaft door is made so narrow that it is impossible to reach in. There is no risk of injury. Due to the deflection in the slot whose size remains constantly small.

In another embodiment, the fall protection can be performed in an open design without housing. The deflection of the rollable material by means of a horizontally arranged pulley, which is held on both sides. The retractor can be integrated in the cabin floor or the car roof.

Furthermore, at least one monitoring switch or a monitoring sensor is used, which detects the position of the fall protection (active or inactive). The controller used evaluates this information and prevents the elevator can go into normal operation with extended (active) fall protection. This prevents that the elevator moves the extended and arrested fall protection against the pit floor or against the shaft ceiling. The control may be the elevator control or a separate (self-sufficient) control unit.

The rollable material consists of textiles, plastics, strip or metal mesh or other full-surface or net-like materials that can be easily rolled up and unrolled and at the same time are flame retardant. During normal operation of the elevator the rollable material is rolled up on the retractor and the locking device blocks the rolling of the fall protection in the upper (inactive) position. The elevator can drive unhindered the entire elevator shaft, a collision between fall protection and pit floor or shaft head ceiling is excluded.

The fall protection can be held both electrically and purely mechanically in the inactive state (locked). The electrical variant provides that a magnetic coil, which must be kept under tension during normal operation, is used. As soon as the voltage drops, the fall protection is activated. The mechanical design essentially includes mechanical components, such as one or more unlocking locks, locking rods, locking bolts and compression springs. The unlocking is done by using a triangular key on one of the unlocking locks.

The fall protection can be unlocked (activated) both automatically (electrically) and manually (purely mechanically). During automatic activation, an unlocked door door sends an electrical signal to the controller at the same time. Depending on the locking variant, the controller then either drops the voltage at the solenoid coil or briefly attracts a lifting magnet in the fall protection, and then the fall protection switches to the active state. With manual activation, unlocking takes place with a release triangular on the front of the fall protection. In the event of a person being exempted, the elevator attendant only has to open the shaft door a gap to access a release lock. Since the elevator attendant can not fall through a small gap (less than 200 mm) and since he can not be crushed by the slight down sliding lower receiving profile, there is no danger to the elevator attendant.

Optionally, the fall protection is provided with guide posts which, in combination with the lower receiving profile and the locking device, keep the rollable material taut in both the active and inactive states and prevent the roll-up material from dodging into the elevator shaft. The guide supports are extendable as far as the locking device allows.

The guide supports cause by their own weight lowering the fall protection in the active state after unlocking. They work against the spring force of the retractor. The fall protection can be equipped to support the lowering process with compression springs. This can be advantageous if the force of the retractor is greater than the weight of the guide posts or if the fall protection is used on the cab roof and the guide posts must go up.

In an unintentional movement of the car from the stop moves the Cabin off the landing when the landing door is open. There may be a larger gap between the floor of the floor and the car door sill, which may cause people to fall into the elevator shaft. To close this opening, the fall protection is activated upon detection of unintentional movement. This is triggered by the control, which is able to detect an unintentional movement of the car from the stop and respond to it.

Optionally, the controller monitors and ensures that the fall protection can only be reset (rolled up) to its inactive position in a defined position in the lowest stop. It is thus prevented that the elevator attendant can fall from a dangerous height level in the elevator shaft when rolling up the fall protection. In the lowest station is a crash into a lift shaft with shortened pit pit uncritical. Resetting the fall protection is therefore also not critical in this area. The cabin is driven into this area with return control and active fall protection.

There may be booths in which the extendable guide posts are undesirable (eg in glass elevators) or the guide posts may not be accommodated for space reasons. In these applications, the fall protection without the guide posts can be carried out so that the lower receiving profile is hung in the hoistway door or the shaft door sill. In order to keep the rollable material taut, the retractor is locked in the active and inactive state of fall protection.

It can also be dispensed with the guide posts by the reeling mechanism is supplemented by stretched in the elevator shaft ropes. These run in an area to the left and right of the car doors and are anchored in the shaft head and in the pit. In the lower receiving profile are holes or eyelets through which the ropes are passed. When the fall protection is activated, the lower mounting profile glides down the ropes. Due to the connection between the receiving profile and the ropes, avoidance of the receiving profile and thus of the fall protection in the direction of the elevator shaft is prevented. So that the roll-up material can not bulge in the elevator shaft, the rollable material is held taut by an additional linkage.

As an alternative to the guide posts and to the ropes, the rollable material is held taut by a self-folding and locking linkage when activated.

With the fall protection described is achieved that its length in the extended (active) state can be much longer than is the case with all previously known cabin door aprons, whereby a maximum of security is achieved. This is because the extendable length of the fall protection is not dependent on the shaft pit depth, as in other solutions, but in the variant with guide supports from the cabin door height, as the extendable guide supports drive into the car door pulls. A cabin door is at least 2.00 m high, so the guide supports can also be about 2.0 m long.

In the embodiment with cables tensioned in the elevator shaft, the maximum length of the active retractor is even independent of the car door height, the activated fall protection can be as long in this variant as the elevator shaft is high. This additionally prevents a person from falling into the elevator shaft from a shaft door arranged below the car. In the variant without guide posts and without ropes in the elevator shaft, the length of the active fall protection depends on the length of the linkage.

When the fall arrester is located only below the car door sill, with the retractor and all locking elements in one housing, no space is occupied in the projection of the cabin surface, neither in the rolled up (inactive) nor in the unrolled (active) state. The cabin doors can be arranged independently of the fall protection in this variant, without there being points of contact between several fall protection devices on the cabin.

In principle, a long roll-up material can be rolled up on a relatively small retractor, whereby a very low height is achieved. The fall protection is equipped with one or more retractors. When using a retractor, the overall diameter, including rolled-up material, is greater than when multiple small retractors are used. Two juxtaposed retractors require greater manufacturing effort, but have a smaller installation height, as a single retractor. Depending on the shaft pit depth, one or the other variant is more advantageous.

By deflecting the rollable material, the retractor can be arranged in a freely selectable area either below the car door sill, the feeder or the cabin floor. It can even be embedded in the cabin floor. As a result, an even lower installation height is achieved than in all previously known Solutions. Pit pits with a depth of less than 150 mm can be operated. When using the fall protection as a substitute for a railing on the cab roof, the same effect is achieved. By arranging the retractor in the cab roof, the installation height is also minimal. Low shaft head heights can be operated.

When arranging the retractor in the cabin floor their maintenance can be done by a hatch in the cabin floor. Thus, time during maintenance can be saved. The arrangement of the retractor under or in the cabin floor, however, has the disadvantage that areas in the projection of the cabin surface are occupied, which can come to touch points of several retractors depending on the arrangement of the car doors.

According to elevator standards, the length of the inactive apron must at least correspond to the unlocking zone, ie the area in which the elevator doors are opened in the normal operating state. Otherwise it may come to shearing the toes in the entry area of the cabin door. With small aprons, there can only be a small unlocking zone. Since this is undesirable, the fall protection is depending on the shaft pit depth in the inactive state only rolled up as far as it is possible in the existing pit without it comes to the pit lift during normal elevator ride. It does not, as usual, for each elevator, depending on the shaft pit depth, a separate apron length be made. It is always the same fall protection used, a series production is possible. Only the locking position in the inactive state must be adjusted, d. H. The hole in the guide posts, in which the locking pin engages, must be adapted to the circumstances.

A significant improvement in safety is achieved by activating the fall protection in the event of unintentional movement of the car from the landing. Only with this option is it possible to realize small pits and to maintain the required safety level. The background to this is that the unintentional movement is recognized only after leaving the unlocking zone (after about 200 mm) and the car is then braked. All the components involved have delay times, causing the car to come to a stop very far from the stop. The gap between floor level and inactive fall protection would be so great that people can fall into the elevator shaft. Activating the fall protection closes the gap safely.

A significant increase in safety is achieved by the automatic activation when opening the shaft doors with unlocking triangular. Safety is instantly and automatically produced both in the cabin door sill area and on the cabin roof. Activation can therefore not be forgotten by the elevator attendant.

Despite the very compact design ensures that in any operating condition a fall protection with a smooth surface flush with the car door sill (when installed in this area) is realized. The opening under the car door is always safely covered. The shaft door facing slot through which the rollable material is guided is so narrow that reaching in is impossible. By the locking unit, the rollable material is always taut and a belly in the elevator shaft impossible.

By rolling up the rollable material this is led away from the car door sill. It does not remain in the area of the shaft doors, as with the foldable aprons DE 10 2008 038 408 and DE 10052459 , The rollable material therefore does not come into contact with the shaft doors. By rolling up the rollable material outside the car door sill, z. B. in the cabin floor, the installation height is much lower than the foldable car door sills.

The invention will be explained in more detail below with reference to several exemplary embodiments and the figures listed below.

1 shows a fall protection with housing and guide posts, the retractor, the locking device, monitoring switch and locking magnet are integrated in the housing. The fall protection is in the active state.

2 shows a mechanical locking device with locking pin and compression spring. The unlocking (activation) is effected electrically by means of lifting magnets or mechanically by means of a triangular key on the unlocking lock.

3 shows an embodiment in which the fall protection is electrically held in the inactive state by means of magnetic coil.

4 shows a fall protection in which the lower receiving profile ( 7 ) in a shaft door ( 23 ) is mounted. The fall protection is carried out without guide supports and without cables tensioned in the lift shaft. The fall protection is in the active state.

5 shows a fall protection with tensioned in the elevator shaft ropes and linkage for keeping the roll-up material.

6 shows a cabin floor detail with two small retractors. The fall protection is designed with ropes and rods tensioned in the elevator shaft and is in inactive condition.

7 shows a cab floor detail with arranged in the cabin floor retractor. The fall protection has been designed with ropes and rods tensioned in the elevator shaft and has been activated.

8th shows a cabin floor detail arranged in the cabin floor retractor, in which the rollable material is deflected several times. The fall protection is carried out without ropes tensioned in the elevator shaft and with linkage. He is in active condition.

9 shows a fall protection with a telescopic linkage, the retractor is attached to the lower end of the linkage. The fall protection is in inactive condition.

10 shows a fall protection on the cabin roof ( 23 ) with telescopic guide posts ( 5 ). The fall protection is in the active state.

A first embodiment is in 1 and 2 shown. It discloses a fall protection for elevator systems, with guide posts 5 is executed. The mechanical locking is done by locking bolts 6.3 in the active as well as the inactive position.

The fall protection consists of a below the car door sill 1 attached housing 2 with slot door side slot 11 , In the case 2 sits a retractor 3 on the rollable material 4 a textile tape is rolled up. For a 900 mm wide door, the textile tape is about 950 mm wide, so that the Turöffnungsbreite is adequately covered if necessary. The textile band is at the free end of a lower receiving profile 7 added. On the recording profile 7 There are left and right guide posts 5 in the housing 2 be guided. The guide posts 5 can slide between an upper and a lower position, taking up the rollable material 4 with, this on the roller blind 3 is rolled up and down.

The guide posts 5 be by a locking device 6 locked in the upper and lower position. The locking device 6 consists of at least one unlocking lock 6.1 , For example, a triangular lock cylinder, a locking linkage 6.2 and stop bolts 6.3 with compression springs 6.4 , In addition, a solenoid is 12 installed for automatic unlocking. In the upper and lower position are in the guide posts 5 Holes introduced in such a way that the locking bolts 6.3 can engage. By snapping the guide posts 5 locked. If necessary, a triangular key can be used as unlocking lock 6.1 Serving lock cylinder on the front of the fall protection are manually operated. About the locking linkage 6.2 the movement becomes the locking pin 6.3 led, they are withdrawn and the guide posts 5 unlocked.

By gravity, the guide posts slide 5 in the lower position and take the textile tape with you. This is thereby stretched so that a smooth surface is created pointing to the shaft door. In the lower position, the locking bolts snap 6.3 in the holes provided. The guide posts 5 are interlocked again, the gap between floor level and car door sill 1 is sure hidden.

So that an elevator attendant does not have to activate the fall protection manually in the event of a person being released, an additional contact is installed in the shaft doors, which registers when a shaft door with unlocking trimmer is opened. This contact gives a signal to the controller 10 , which then the additionally integrated in the fall protection solenoid 12 wear. This pulls on the locking linkage 6.2 and the guide posts 5 can slide down to where they will be re-locked.

At the fall protection is a monitoring switch 8th or sensor that controls whether the fall arrester is in the upper (inactive) position. As soon as the lower intake profile 7 moved down a few millimeters, the circuit is interrupted. The control 10 registered that normal driving may no longer be initiated. The elevator can now only be moved to a defined position in the lowest stop with return control. The position of the cab registers the controller 10 via an absolute encoder or via an additional switch in the elevator shaft. The speed of the return control is very low and the control is accessible only to a lift attendant. Thus, the elevator can be moved with activated fall protection only by trained personnel. The above measures will ensure that the extended and arrested fall protection not the pit floor 17 touched, which would damage it.

In the lower (active) position, not only the locking bolts snap 6.3 in the guide posts 5 one, but also at least one locking magnet 9 , This locking magnet 9 prevents the fall protection in one of the upper stops from being able to return to the inactive state. Only in the defined position in the lower stop, the controller gives the locking magnet 9 free. With a Entriegelungsdreikant then a triangular lock cylinder is actuated, the locking pin 6.3 give the guide posts 5 Free and the fall protection can be reset to the inactive position. The textile tape is doing by the retractor 3 automatically rolled up.

3 shows the first embodiment with magnetic coil 13 , The locking in the inactive state takes place electrically.

The second embodiment is in 4 shown. The fall protection is carried out without guide supports and without cables tensioned in the lift shaft. The lower intake profile 7 of the fall protection is in a shaft door 23 hooked. The locking and unlocking is purely mechanical.

The fall protection also consists of a below the car door sill 1 attached housing 2 with slot door side slot 11 , In the case 2 a roller blind sits as a retractor 3 on which as a rollable material 4 a textile tape is rolled up. In a 900 mm wide door, the textile tape is also about 900 mm wide, so that the Turöffnungsbreite is adequately covered if necessary. The textile band is at the free end of a lower receiving profile 7 added.

The roller blind is constantly by a locking device 6 locked. The locking is released by manual operation of a triangular lock cylinder on the front of the housing 2 ,

In the event of a person being released, the elevator attendant opens the shaft door 23 completely. Then he unlocks the fall protection and pulls the lower intake profile 7 with the textile strap to the shaft door 23 and put it in this one. The roller blind is automatically locked again and the person can be exempted. After the person is released, the fall protection is unlocked with the triangular key, the lower receiving profile 7 out of the shaft door and set back to the inactive state.

At the fall protection is a monitoring switch 8th , which registers whether the fall protection is in the upper (inactive) position. As soon as the lower intake profile 7 moved down a few millimeters, the circuit is interrupted. The control 10 registered that no more driving may be initiated. A ride at one in the landing door 23 hinged fall protection would result in its destruction.

The third embodiment is in 5 shown. The illustrated fall protection is with cables tensioned in the elevator shaft 14 and executed without guide posts. The ropes 14 run through holes in the lower intake profile 7 , During normal elevator operation, the cables touch the lower intake profile 7 Not. Only with activated fall protection and if a force on the admission profile 7 acts, touches the lower intake profile 7 the ropes 14 , The ropes 14 prevent evasion of the receiving profile 7 and thus the rollable material 4 in the direction of the elevator shaft. A linkage 18 Holds the lower intake profile 7 in the active state down and thus the rollable material 4 taut. The rollable material 4 can not bury in the elevator shaft. The locking and unlocking of the retractor 3 is executed as in the first embodiment.

6 shows the third embodiment with two small retractors below the car door sill 1 , Their installation height is low.

7 shows the fourth embodiment with an integrated in the cabin floor large retractor. Their diameter is larger than in the retractors in 6 , by the arrangement in the cabin floor 15 However, the installation height is not greater than in 6 ,

The fifth embodiment is in 8th shown. This example discloses a solution that manages without guide posts and without ropes tensioned in the elevator shaft. A linkage 18 , which in the active state of the retractor 3 locked, holds the lower intake profile 7 down and at the same time prevents its escape into the elevator shaft.

The retractor is so in the cabin floor 15 arranged it with a maintenance hatch 19 is accessible from the cabin interior. The rollable material 4 is via an additional pulley 21 led to the desired position.

The sixth embodiment is in 9 shown. It discloses a fall protection with fold-out and telescopic rod 18 in which the retractor 3 at the lower part of the linkage 18 is attached. Telescoping ensures that the fall protection in the inactive state is short so as not to collide with another fall protection. The attached at the bottom retractor 3 supported by its own weight, the extension of the linkage 18 ,

The seventh embodiment is in 10 shown. The fall protection is in the area of the cabin roof 22 arranged. The retractor 3 is in the cabin roof 22 integrated. The triggering and locking take place as in the first embodiment. The extendable guide posts 5 are pushed up when activated by means of gas springs.

LIST OF REFERENCE NUMBERS

1

Car door sill

2

casing

3

retractor

4

Roll-up material

5

guide posts

6

locking device

6.1

Release lock

6.2

locking linkage

6.3

Indexing plungers

6.4

compression spring

7

Up profile

8th

monitoring switch

9

locking magnet

10

control

11

slot

12

solenoid

13

solenoid

14

rope

15

cabin floor

16

shaft ceiling

17

Pit floor

18

linkage

19

Maintenance hatch in the cabin floor

20

deflecting

21

idler pulley

22

canopy

23

shaft door

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2042463 B1 [0004, 0005]
• EP 1524234 B1 [0004, 0006]
• EP 1215159 B1 [0004, 0006]
• EP 1118576 B1 [0004, 0006, 0007]
• DE 102008038409 A1 [0004, 0009, 0010, 0013, 0014]
• DE 102008038408 A1 [0004, 0009, 0014, 0014]
• DE 1052459 A1 [0004]
• DE 20313911 U1 [0004, 0014, 0014]
• EP 2138443 A1 [0004, 0014, 0014]
• DE 10052459 A1 [0014, 0014]
• DE 102008038408 [0047]
• DE 10052459 [0047]

Claims (13)

Fall protection for elevator installations, in which a roll-up material ( 4 ) of at least one retractor ( 3 ) is rolled up and unrolled, characterized in that the rollable material ( 4 ) of the retractor ( 3 ) by means of a deflection device ( 20 ) is deflected so that the rollable material ( 4 ) after the deflection in the activated state in the vertical direction. Fall protection according to claim 1, characterized in that the retractor ( 3 ) in the area of the cabin floor ( 15 ) and the deflection device ( 20 ) below the car door threshold ( 1 ) of the elevator car in the area of the shaft door ( 23 ) pointing edge of the car door threshold ( 1 ) are arranged and the rollable material is directed downward. Crash protection according to claim 1, characterized in that the retractor and the deflection device in the region of the cabin roof ( 22 ) are arranged and the rollable material ( 4 ) is directed upwards. Fall protection according to one of claims 1 to 3, characterized in that the fall protection a housing ( 2 ) and the deflection device ( 20 ) through a slot ( 11 ) is formed in the housing. Fall protection according to one of claims 1 to 4, characterized in that the rollable material ( 4 ) at the free end by a receiving profile ( 7 ) is held. Fall protection according to one of claims 1 to 5, characterized in that at least one locking device ( 6 ) the rollable material ( 4 ) locked in the rolled up (inactive) and / or unrolled (active) state. Fall protection according to one of claims 1 to 6, characterized in that the fall protection with a monitoring switch ( 8th ) or sensor and a controller ( 10 ), which monitor and ensure that the elevator can only travel at nominal speed when the fall arrest guard is in the rolled-up (inactive) state. Fall protection according to one of claims 1 to 7, characterized in that the rollable material ( 4 ) is formed over the entire surface or net-like and consists of textiles, plastics, metal mesh or band plate. Fall protection according to one of claims 1 to 8, characterized in that the rollable material ( 4 ) by extendable guide posts ( 5 ) and held tight in his position. Fall protection according to one of claims 1 to 8, characterized in that the rollable material ( 4 ) by a fold-out linkage ( 18 ) is kept taut in his position. Fall protection according to one of claims 1 to 10, characterized in that the fall protection with a switch or sensor and a controller ( 10 ), which cause the fall protection to be activated when the car leaves the bus stop in the event of an unintended car movement. Fall protection according to one of claims 1 to 11, characterized in that the fall protection with a switch or sensor and a controller ( 10 ), which cause the locking device ( 6 ) the rollable material ( 4 ) only for rolling releases when the elevator car is in a defined area in the lowest station. Fall protection according to one of claims 1 to 12, characterized in that the roll-up material ( 4 ) by ropes tightly tensioned in the elevator shaft ( 14 ) or profiles is performed.

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