Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
  • B66B13/02—Door or gate operation
  • B66B13/12—Arrangements for effecting simultaneous opening or closing of cage and landing doors

Definitions

• the invention relates to a device for actuating and locking elevator doors with driver skids, which are mounted on a car door and which are intended to actuate shaft door drive rollers for actuating shaft doors, an actuating device being provided to change the distance between the driver skids, the has an actuating lever connected to a door drive, the actuating lever being operatively connected to a first pivoting lever on which the driving runners are articulated, and wherein a locking device is designed to lock the cabin door.
• the doors of elevators are generally operated in such a way that a door drive is provided on the elevator car, which executes the opening and closing movement of the car door.
• the landing doors which are located at each stopping point of the elevator, usually do not have their own door drive, but are taken from the car door by means of driver devices.
• the driver device also has the task of unlocking the shaft doors.
• Shaft door drive rollers are usually attached to the shaft doors and are at a certain distance in the horizontal direction.
• the driver device which is fastened to the door of the elevator car, has driver skids which are oriented in the vertical direction and whose distance from one another can be changed. Releasing the release of the Shaft doors take place in that the driver skids exert a force on the shaft door drive rollers. Basically, this force can compress the shaft door drive rollers or push them apart. In practice, 5 such systems are called locking couplers or expansion couplers.
• Locking devices have become known from EP 0 426 057 A, EP 0 709 334 A or EP 0 164 581 A, in which the locking is actuated by levers which are connected to a scanning roller and wherein the scanning roller in
• EP 0 634 353 A and the generic EP 0 332 841 A.
• a feeler element is attached to each driver skid (rocker 3 in EP 0 634 353 A or run-up curve 5 in 0 EP 0 332 841 A). This probe element is preloaded in such a way that it is at a distance from the driver skid. If the driver skid presses against the shaft door drive roller on one floor, the feeler element is pressed towards the driver skid and this movement is used to unlock the cabinet door.
• the movement is transmitted via a cable, in EP 0 332 841 A via a control cam 24 which presses against a control roller 14.
• the object of the present invention is to develop the solutions described above in such a way that, on the one hand, fixed ramps for actuating the cabin door lock can be avoided and, on the other hand, a mechanically
• the actuating lever and the first pivoting lever can be pivoted relative to one another by a predetermined angle and that the locking devices
• L5 direction is connected to a pulling element which is articulated on the one hand on a driving skid and on the other hand on the actuating lever.
• actuating lever and the first pivot lever are provided so that the actuating lever and the first pivot lever can be pivoted relative to one another by a predetermined angle. If the driver skids now press against the shaft door drive rollers, there is a relative movement between the actuators
• the present invention is suitable in the same way for locking couplers as for expansion couplers and is easily adaptable to the different types of locking devices.
• the tension element can be used as
• 35 pull rope can be formed, but it can also be used as a drawstring are shown, as a material besides steel also suitable plastics or the like. can be chosen.
• the tension element is firmly connected to a driver skid and deflected around a deflection roller attached to the actuating lever.
• a structurally particularly advantageous construction of the device is characterized in that a second pivot lever is provided, which forms a parallelogram guide with the first pivot lever and the driver skids.
• FIG. 1 shows a general view of a device according to the invention in the installed position
• FIG. 2 shows the device of FIG. 1 on an enlarged scale in a position in which the door drive keeps the cabin door closed
• FIG. 3 shows a representation corresponding to FIG. 2 in a position of the device when the door drive fails between floors with the cabin door still locked
• FIG. 4 shows a representation in which the locking in the floor area is released in order to open the cabin door.
• FIG. 1 shows the device 100 according to the invention in its installation situation.
• a door bracket 101 in the form of a carrier is provided above the entrance opening of an elevator car, which is not shown in detail.
• Guide rails 102 are fastened to the door holder 101, on which rollers 103 run, on which cabin doors 104a, 104b are suspended are.
• the cabin doors 104a, 104b are actuated by an electric motor 105 which is fastened to the door holder 101 and drives a drive belt 106.
• the drive belt 106 is connected to an actuating lever 1 of the device 100. Since the device 100 is directly connected to the first car door 104a, the first car door 104a is carried by the drive belt 106.
• the first cabin door 104a is also connected to a circumferential rope 107, which is arranged essentially horizontally and is deflected by deflection rollers 108.
• the second car door 104b is also connected to the peripheral cable 107, so that the opening and closing movement of the car doors 104a, 104b takes place simultaneously and in opposite directions.
• shaft door drive rollers 109, 110 are shown in FIG. 1 between the driver runners 14, 15 of the device 100, which are connected to a shaft door 111 indicated here by broken lines.
• the driver skids 14, 15 of the device 100 are removed from the shaft door drive rollers 109, 110, so that the cabin can be moved without influencing these shaft door drive rollers 109, 110.
• the opening movement of the doors 104, 104b; 111 is initiated by the fact that the electric motor 105 is actuated and drives the drive belt 106.
• the movement of the drive belt 106 first actuates the actuating lever 1 in the device 100, which has the consequence that the driver skids 14, 15 are moved toward one another.
• the driver runners exert a compressive force on the shaft door drive rollers 109, 110, which releases a not shown locking of the shaft doors 111. This position is shown in FIGS. 1 and 4.
• the entire device 100 is driven by the drive belt 106 according to FIG. 1 pulled to the left, thereby initiating the opening movement of the first car door 104a.
• the second car door 104b is moved in the opposite direction via the cable 107.
• the shaft doors 111 are taken along and also opened via the shaft door drive rollers 109, 110.
• the actuating lever 1 for the device 100 is connected to the drive belt 106 at an articulation point 2.
• the actuating lever 1 is pivotably mounted about an axis 3 which is fixedly connected to the cabin door 104a.
• the drive belt 106 pulls the actuating lever 1 in the direction of the arrow 4, so that one end of the actuating lever 1 abuts a stop 5 which is fixedly connected to the cabin door 104a.
• the cabin door 104a is simultaneously held in the closed position by the tensile force of the drive belt 106.
• a compression spring 6 exerts a pulling force on a pull rod 7 and thus biases the actuating lever 1 via a pivot point 8 in a direction which corresponds to a pivoting movement in the counterclockwise direction.
• a driver bar 9 is also provided, which couples the pivoting movement of the driver lever 1 with a certain amount of play with the pivoting movement of a first pivot lever 10.
• the first pivot lever 10 forms, with a second pivot lever 11 of the same design and the two driving runners 14, 15, which are connected to the pivot levers 10, 11 at articulation points 12, a joint parallelogram.
• the first pivot lever 10 is pivotable about the same axis 3 as the actuating lever 1.
• the second pivot lever 11 is pivotable about an axis 13 arranged below the axis 3.
• the actuating lever 1 is connected via a first and a second limiting lever 16, 17 connected to a fixed axis 18, which limit levers 16, 17 are here in the position shown in a bent position.
• a traction cable 20 is fastened as a traction element to the second entraining skid 15 at point 19, which is deflected around a deflection roller 21 which is attached to the actuating lever 1.
• the pull rope 20 is firmly connected at point 23 to a bolt 24 which is pivotally mounted about an axis 25.
• the traction cable 20 is deflected around a further deflecting roller 22 which is firmly connected to the bolt 24.
• a compression spring 26 biases the latch 24 counterclockwise.
• the bolt 24 has a bolt pin 28 which, in the positions shown in FIGS. 2 and 3, engages in a fixed bolt catch 29 and thus mechanically locks the cabin door 104a.
• the bolt 24 also acts on a switch contact 27, which is designed to be able to detect and check the locking of the car doors 104a, 104b. This makes it possible to comply with an existing safety regulation which prescribes that unlocking the cabin door 104a, 104b causes the cabin travel to be stopped immediately.
• FIG. 3 shows a situation in which the door drive has failed or tries to open the cabin doors 104a, 104b outside of an intended holding zone by an error.
• the actuating lever 1 is pivoted here in the maximum possible position in the counterclockwise direction, which position is defined by the extended position of the limiting levers 16, 17. If the door drive fails, this position is achieved by the force of the compression spring 6, which prestresses the actuating lever 1 in the position shown.
• the pivot levers 10, 11 are also pivoted to the maximum in the counterclockwise direction and cause the driver skids 14, 15 to assume a position of maximum approach in which their - - was di.
• the driver bar 9 exerts a compressive force on the first pivot lever 10, the play between the driver bar 9 and the pivot lever 10 being utilized. Since in the position shown in FIG. 4 the movement of the driving runners 14, 15 towards the inside is limited, the distance between the articulation point 19 and the first deflection roller 21 increases, so that a tensile force is exerted on the traction cable 20, which causes a movement of the latch 24 in the clockwise direction. As a result of this movement, the locking pin 28 is disengaged from the locking catch 29 and the cabin door 104a is released. Furthermore, the switch contact 27 is also opened, thus interrupting the locking signal.
• FIG. 4 is achieved both in the operationally intended manner by actuating the door drive from the position of FIG. 2 in the holding zone. 3, but also in an emergency from the position shown in FIG. 3, for example when the cabin is lowered mechanically into the holding zone in the event of a power failure.
• the driver skids 14, 15 are pressed apart by the shaft door drive rollers 109, 110, which causes the cabin doors 104a, 104b to be unlocked in order to free any persons trapped in the cabin.
• the present invention makes it possible to implement a safe car door lock for elevators with a minimum number of individual components and corresponding to the given regulations.

Landscapes

• Elevator Door Apparatuses (AREA)
• Ladders (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=29220193

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (26)

Family Cites Families (9)

• 2002
  • 2002-04-22 AT AT0061902A patent/AT412339B/de not_active IP Right Cessation
• 2003
  • 2003-04-17 WO PCT/EP2003/050116 patent/WO2003089356A1/fr active IP Right Grant
  • 2003-04-17 AT AT03730187T patent/ATE349396T1/de not_active IP Right Cessation
  • 2003-04-17 ES ES03730187T patent/ES2276067T3/es not_active Expired - Lifetime
  • 2003-04-17 AU AU2003240773A patent/AU2003240773A1/en not_active Abandoned
  • 2003-04-17 US US10/512,396 patent/US7252179B2/en not_active Expired - Lifetime
  • 2003-04-17 EP EP03730187A patent/EP1497217B1/fr not_active Expired - Lifetime
  • 2003-04-17 DE DE50306108T patent/DE50306108D1/de not_active Expired - Lifetime

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events