Abstract: A modular sill assembly includes a top layer, a bottom layer, a first fastener, and a second fastener. The top layer includes a first top plate and a second top plate. The first and second top plates define a door channel therebetween. Each of the first and second top plates includes a top surface, a bottom surface, and a blind bore. The blind bore is defined in the bottom surface and extends towards the top surface. The blind bore is threaded. The bottom layer includes a first base plate that defines a through bore. The first fastener extends through the first base plate and is threadably received in the blind bore of the first top plate to secure the first top plate to the first base plate. The second fastener extends through the first base plate and is threadably received in the blind bore of the second top plate to secure the second top plate to the first base plate.

Abstract: An elevator door panel including a front plate, a thermal insulation member, a fixing member, and a longitudinal reinforcement plate, wherein four bent parts are formed by bending upper and lower ends and both side ends of the front plate into a U shape toward the back surface, the longitudinal reinforcement plate is connected to the bent parts by two brim parts on the back surface of the front plate while forming a space between the back surface and the longitudinal reinforcement plate, and the thermal insulation member is provided in the space formed between the longitudinal reinforcement plate and the back surface and fixed by the fixing member.

Abstract: Disclosed is a fireproof shutter for opening and closing a passage between an upper story and a lower story. The fireproof shutter includes a base panel having an opening corresponding to the passage, a door for opening and closing the opening, and a guide unit for guiding the door between an open position in which the door is opened and a closed position in which the door is closed and having a predetermined inclination such that the door is closed by its own weight.

Abstract: The invention refers to an elevator door leaf comprising a door panel and a support structure having at least one profile. The door leaf comprises a vertically extending expansion member which is fixed to the door leaf only at one vertical level, whereby the expansion member consists of a material having a larger thermal expansion coefficient than the material of the door panel and/or of said profile.

Abstract: A fire-rated sliding elevator glass door is provided. The door includes a face panel, a liner, a fire-rated glass panel, and a retainer that retains the glass panel in the door frame. The elevator door is configured to pass a 90-minute fire rating test. The elevator door can be implemented as a single-speed side open elevator door, a single-speed center open elevator door, a two-speed side opening sliding elevator door, or a two-speed center opening sliding elevator door. A method of constructing the fire-rated elevator door is provided.

Abstract: An elevator door guide (16) includes at least one elevator door guide member (30, 32) having a first channel (18) and a second channel (64) each for at least partially establishing a direction of door movement. The first channel (18) is open in a first direction (24) and the second channel (64) is open in a second direction (66). In one example, the channel (18) at least partially establishes a direction of door movement and a passage (26) extends through the elevator door guide (16) in a direction (28) that is transverse to the direction of door movement.

Abstract: An elevator door panel for closing the opening to an elevator shaft comprising a generally planar steel sheet reinforced on the shaft side by a perimeter framework and intermediate vertical stiffening members. At its lower edge the panel includes a resilient seal member supported on a structural steel construction that is generally symmetrical about a vertical plane at a mid-section of the panel thickness.

Abstract: A roller assembly includes a frame (16) defining a doorway (14). A rail (32), which includes at least one supporting surface along at least one side of the rail, is secured to the frame (16). At least one roller (38), which is adapted to roll along the supporting surface of the rail (32), has a tire material (68) that contacts the rail (32). A thermal barrier (62, 70, 72, 76, 80) is positioned to inhibit heat transfer from the rail (32) to the tire material (68).

Abstract: A sealing device for an elevator door includes a doorway member, doors, a movable member, a push-down mechanism and a sealing mechanism. The doorway member is provided for a gate. The doors open or close along the doorway member. The movable member is set horizontally and provided to be movable in a vertical direction in the doorway member, and it is urged upwards by an urging unit. The push-down mechanism pushes down the movable member against the force of the urging unit just before the doors are closed. The sealing mechanism is kept non-contact with the doors while they are moving, and seals the gap between the doors and the doorway member as it is brought into contact with upper section of the doors when the movable member is pushed down by the push-down mechanism.

Abstract: A door assembly has a door header mounted on a frame defining a doorway, a door movably supported on the frame, and a track including at least one supporting surface along at least one side of the track. The track is secured to the door header. The assembly has at least one roller that is adapted to roll along the track. The roller has a rim portion adjacent a hub portion, and a tire material surrounding the rim portion that contacts the track. The roller is at least partially covered with a thermal barrier between the tire material and at least one of the rim portion and the hub portion to prevent heat transfer to the tire material.

Abstract: A sealing device for an elevator door includes a doorway member, doors, a movable member, a push-down mechanism and a sealing mechanism. The doorway member is provided for a gate. The doors open or close along the doorway member. The movable member is set horizontally and provided to be movable in a vertical direction in the doorway member, and it is urged upwards by an urging unit. The push-down mechanism pushes down the movable member against the force of the urging unit just before the doors are closed. The sealing mechanism is kept non-contact with the doors while they are moving, and seals the gap between the doors and the doorway member as it is brought into contact with upper section of the doors when the movable member is pushed down by the push-down mechanism.

Abstract: An electromagnetic door lock assembly (30) includes a first portion (32) supported relative to hoistway doors (22) and a second portion (34) supported for movement with an elevator car (24). The first and second portions cooperate so that electromagnetic interaction between them unlocks a set of hoistway doors (22) for access to the car (24), for example. In disclosed embodiments, a first portion (32) of the actuator has at least one stationary electromagnetic portion (36A, 36B) and at least one moveable portion (38). The second portion (34) that moves with the car (24) includes at least one stationary electromagnetic portion (44). Magnetic interaction between the first and second portions (32, 34) causes selected movement of the moveable portion (38) for selectively locking or unlocking the doors (22).

Abstract: The bottom guiding device according to the invention for telescoping elevator car and/or landing doors with at least one fast-moving door (3) and one slow-moving door (1) moving parallel to and within a small distance from a threshold plate (5) of a car and/or landing door respectively, is characterized in that it implements a threshold plate (5) on the car and/or landing side, formed with at least one lower edge parallel to the travel path of the doors (1, 3) and forming a bottom guide track (31) for the doors; a bottom plate (11) integral with the slower door (1) and extending with a small clearance below the faster door (3), provided on the threshold side with a guide track (13) parallel to the travel path of the doors (1, 3) and accommodating a guide element (19) integral with the faster door (3) and close to its rear lower end; at least two distant guide elements (25) integral with said bottom plate (11) on the slower door and accommodated on said (31) on the threshold plate so as to slide freely; and at

Abstract: A sealing device for an elevator door includes a doorway member, doors, a movable member, a push-down mechanism and a sealing mechanism. The doorway member is provided for a gate. The doors open or close along the doorway member. The movable member is set horizontally and provided to be movable in a vertical direction in the doorway member, and it is urged upwards by an urging unit. The push-down mechanism pushes down the movable member against the force of the urging unit just before the doors are closed. The sealing mechanism is kept non-contact with the doors while they are moving, and seals the gap between the doors and the doorway member as it is brought into contact with upper section of the doors when the movable member is pushed down by the push-down mechanism.

Abstract: A safety closing system for a shaft door panel of an elevator installation brings the shaft door panel into a closed setting in the absence of an opening force. The safety closing system includes a spring which is stressed in the open setting of the shaft door panel and a drive mass which is subject to gravitational force, the spring and mass being coupled by a flexible tension element with the shaft door panel.

Abstract: A door assembly for an elevator having a cab having a cab entry, the elevator having an elevator shaft having upper and lower shaft entries, the assembly incorporating first, second, and third ladder frames having a plurality of roller carrying rungs and bolt and spacer sleeves spanning between the ladder frames' rungs, each ladder frame having proximal and distal ends, the first ladder frame overlying and extending outwardly from the elevator's cab entry, the second ladder frame overlying and extending inwardly from the elevator's upper entry, and the third ladder frame overlying and extending inwardly from the elevator's lower entry; the door assembly incorporating first, second, and third pluralities of rollable trolleys mounted upon the first, second, and third ladder frames' pluralities of roller carrying rungs; and the door assembly incorporating first, second, and third pluralities of door panels, suspending from the first, second, and third pluralities of rollable trolleys.

Abstract: An active slide (10) for doors of lifts' cabins, comprising a linearly developing blade, vertically oriented, featuring respective ends folded according to the same angle, connected in an articulated manner with a carriage (12) connected to a driving engine by means of a cogged belt (14) and a lever (16) through elastic means (20), said slide cooperating with a balancing hook (18) and an unlock lever (22); the unlock lever (22) is operatively connected to electrically activating means (24) provided with a cam (26) or the like for striking the free end of the lever itself.

Abstract: A door panel position control mechanism for a multiple panel horizontal sliding door assembly of a freight elevator landing. The mechanism comprises a multiple node scissors linkage that is configured to be easily installed and initially adjusted and which has its parts symmetrically balanced about a vertical plane such that excessive eccentric loading on the components is reduced and a long service life is obtained with reduced wear and a reduced need for periodic adjustment.

Abstract: A system and method for installing an elevator door hatchway opening. The system comprises a steel square comprising a top piece, a bottom piece and left and right jambs, a door buck that is bolted to the steel square and at least one exterior hatchway door that is installed on a center portion of the steel square. The steel square is attached by at least one swing lock hinge to at least one elevator shaft way bracket while the steel square is angled outside of an elevator shaft way.

Abstract: An elevator shaft door having a door panel composed of a front wall and rear wall, which walls are connected together by a thermally releasable material, wherein at least a part of the closing edge of the respective door panels consists of a profile member that is formed by the back wall or thermally non-detachably fastened to the back wall. In the case of a fire, the back wall separates from the front wall through release of the thermally releasable material, wherein the front wall curves by heat effect while the back wall with the closing edge retains the original shape.

Abstract: A car door apparatus of an elevator includes a pair of door panels, a door drive device, and a door-opening mechanism. The pair of door panels open and close a doorway of the car of the elevator. The door drive device drives the door panels to open and close the doorway using electric power. When the car is stopped in an emergency in which a power source for driving the elevator is shut off, the door-opening mechanism starts up the door drive device using a secondary battery to move the door panels in the opening direction by a predetermined distance respectively to make a predetermined clearance between the door panels.

Abstract: An elevator door system for an entrance opening to an elevator cab. The system includes a two-part door having an open position and a closed position. The two-part door includes a first door portion for traversing across and covering a portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. The two-part door also includes a second door portion for traversing across and covering another portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. A header track includes a rail with a door track for guiding movement of the first and the second door portions. The door track is held onto the rail of the header track via an S-shaped spring clip.

Abstract: An elevator shaft closure and a method of fulfilling fire protection requirements for the same include a shaft door frame having in the region of the closing edge of the frame with a door leaf of at least two door frame parts attached to a building and connected together with a thermally separable material. Under a predetermined stress, the connection between the door frame parts is released and one of the door frame parts displaces in front of the door leaf while the other door frame part substantially retains its original shape.

Abstract: A device for connecting a car door with a shaft door and for emergency unlocking of a car door consists of an entrainer arranged at the car door, which entrainer detachably connects, together with a roller pair arranged at the shaft door, the car door with the shaft door, and of a first locking mechanism for locking and unlocking the car door and of a second locking mechanism for locking and unlocking the shaft door. When the doors are closed and locked the entrainer is closed and can freely move between the two rollers of the roller pair when the elevator car is traveling between two floors or past a floor not to be served. The first locking mechanism is controlled directly.

Abstract: An elevator door assembly includes a rail and at least one roller that rolls along the rail to move a door between opened and closed positions, for example. A resilient track is provided on the rail that facilitates more efficient roller movement and increases the longevity of the assembly. In one example, the resilient track includes several pieces of flexible material that are snapped in place onto the rail. In another example, the flexible track is supported on the rail using a spray coating technique.

Abstract: The invention provides an elevator door sill assembly for use in elevator systems that have sliding doors. The door sill assembly comprises a sill plate, a support sill located below the sill plate having a rail that presents an inboard sliding surface and an outboard sliding surface. The assembly also comprises a first guiding surface that engages that inboard sliding surface and a second guiding surface that engages the outboard sliding surface. The assembly prevents that bottom of the elevator door from swinging while the door slides opened and closed. The sill assembly and guide system may be used with either hoistway doors or elevator car doors.

Abstract: An elevator door system for an entrance opening to an elevator cab. The system includes a two-part door having an open position and a closed position. The two-part door includes a first door portion for traversing across and covering a portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. The two-part door also includes a second door portion for traversing across and covering another portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. A header track includes a rail with a door track for guiding movement of the first and the second door portions. The door track is held onto the rail of the header track via an S-shaped spring clip.

Abstract: An elevator door system for an entrance opening to an elevator cab. The system includes a two-part door having an open position and a closed position. The two-part door includes a first door portion for traversing across and covering a portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. The two-part door also includes a second door portion for traversing across and covering another portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. A header track includes a rail with a door track for guiding movement of the first and the second door portions. The door track is held onto the rail of the header track via an S-shaped spring clip.

Abstract: A hold block for fastening a structural elevator component, such as a landing door sill, an overhead structure of a landing door opening or a car door sill, to a base. The hold block comprises a fixing element for fixing the hold block to the base and a supporting element, disposed at an angle relative to the fixing element, for attachment of the structural component to the hold block, both of the elements being made of the same continuous plate-like material. In addition, the hold block comprises an adjustment elbow between the fixing element and the supporting element to allow adjustment of the angle between the planes defined by the elements, and a locking element for locking this angle.

Abstract: An elevator door system for an entrance opening to an elevator cab. The system includes a two-part door having an open position and a closed position. The two-part door includes a first door portion for traversing across and covering a portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. The two-part door also includes a second door portion for traversing across and covering another portion of the entrance opening as the two-part door moves between the open position and the closed position of the two-part door. A header track includes a rail with a door track for guiding movement of the first and the second door portions. The door track is held onto the rail of the header track via an S-shaped spring clip.

Abstract: A car cam and locking roller locking structure that opens and closes elevator doors so that the lateral sliding of the car will not affect the opening of the doors.

Abstract: This invention relates to an improved sliding entrance door assembly for an elevator and to the method of installing the assembly. In one embodiment the assembly includes one or more stationary panels affixed to the frame. The stationary panels are comprised of a side panel and a transom panel. The side panel replaces the wall adjacent to the elevator opening. The transom panel is located above the sliding entry door and the side panel. By using the stationary panel, which is thinner than a conventional wall, the sliding entry door assembly uses less of the hallway space. In an alternate embodiment, two sliding entry doors are installed in the frame. They are in separate planes so that one door can slide behind the other. The advantages to the present door assembly is that it may be installed in less time and the assembly requires less space than conventional door assemblies. Also the assembly closes the gap to the shaftway as soon as it is installed.

Abstract: Disclosed is an apparatus for closing hatch doors of an elevator, which is capable of minimizing a generation of noise during an opening and closing the hatch doors of the elevator. The apparatus for closing the hatch doors of the elevator, according to the present invention a frame which is attached to a wall of a landing in an elevator hoistway, for supporting a pair of door hangers to slidably move on the frame, a pair of hatch doors which respectively have the door hangers attached to each upper portion thereof, which are supported by a sill disposed on the landing, and which are slidable opened and closed along the sill and the frame, and a mechanism for closing the hatch doors of the elevator by using a self-weight thereof when the hatch doors are opened. The apparatus for closing the hatch doors of the elevator according to the present invention as constructed above is applied to various types of elevators and minimizes the noise generated during the opening and closing the hatch doors of the elevator.

Abstract: An elevator interlocking mechanism interlocks the elevator cage door and each landing door, and includes a release mechanism for release of the interlocks when the elevator cage is at rest at a landing. The elevator cage interlock comprises an elevator door locking rod which in a locking position engages a lock pin to prevent the elevator cage door from being opened. Each landing interlock includes a corresponding landing door locking rod which in a locking position engages a locking pin, which prevents the landing door from being opened. The locking rods are jointly operated by a single operating device so that the operating device--at a proper landing position--displaces the elevator locking rod from its locking position, and in turn the locking rod displaces a landing door locking rod from its position using a cam.

Abstract: A two door assembly (10) for an elevator car (11) includes a high speed door (12) and a low speed door (14) that move between an open and closed position to close the entrance (16) of the elevator car. The doors (12, 14) are retained slidably between a header (18) disposed along the top of the car entrance and a door guide (20) disposed along the bottom of the car entrance (16). A drive mechanism (22) moves the high speed and low speed doors (12, 14) between the open and closed positions. A drive arm (24) interconnects the doors to move the low speed door (14) at approximately one-half the speed of the high speed door (12) driven by the drive mechanism (22). One end (38) of the drive arm (24) is connected pivotally to the door guide (20) of the elevator car (11). Each door (12, 14) has a pin (32, 34) extending from a bracket (26, 28) connected to each respective door for sliding engagement with a pair of slots (42, 44) that extend longitudinally along the drive arm (24).

Abstract: In an elevator door apparatus, landing fire protection members having engaging portions extending in a direction parallel to an opening and closing direction of landing doors are fixed at door recess portions of an entrance. Further, door side fire prevention plates extending in a direction perpendicular to the opening and closing direction of the landing doors are fixed to side end portions of the landing doors. Insert holes in which the engaging portions are inserted when the doors are closed are provided in the door side fire prevention plates. When a fire occurs, the engaging portions are brought into contact with the side edge portions of the insert holes, which restricts warping of the landing doors.

Abstract: The threshold includes a shaped support plate of steel or the like with a sinuous profile which forms at least one longitudinal, substantially U-shaped loop between two raised portions. A profiled cover element of aluminum or the like is located on the plate and forms at least one guide for guiding the running of a door panel. This guide penetrates into the corresponding loop of the support plate. The threshold further includes fixing devices for anchoring it in the zone connecting the landing and the lift shaft or well.

Abstract: A hoistway door seal structure for limiting the flow of air through a hoistway opening when the door is closed. The hoistway door seal structure includes a hoistway door that covers a hoistway entrance defined by an opening in a hoistway wall structure. An elongated door support member is connected to the wall structure and is positioned in a generally horizontal orientation above the hoistway entrance. A seal structure is supported between the hoistway door and the wall structure. A door support is connected to the hoistway door and is movably connected to the elongated support member to support the door while permitting movement of the door in a lateral direction between an open position permitting access to the hoistway and a closed position wherein the door substantially covers the hoistway entrance with a space between the hoistway door and the wall structure.

Abstract: The invention relates to a multifunction connection and support element for an elevator door structure. The element includes, for each lateral jamb, a connection and support bracket that connects and unites each jamb with an architrave and also to an anchor bracket to be fixed to an elevator shaft wall. The anchor bracket also functions as a guide for sliding carriages of a door motion mechanism. The connection and support bracket performs all functions that in the past were carried out by several distinct connection and support elements.

Abstract: A multiple level building comprising an elevator system in which an elevator car moves between floors within an elevator hoistway which contains a door providing access to the hoistway from a corridor at each floor. Seal structures are provided between the hoistway door and a hoistway wall structure to substantially prevent smoke and gas from passing into or out of the hoistway, and to block water from entering the hoistway. A transverse seal structure has a wall-mounted portion with an angled seal engagement surface relative to the hoistway wall, and a door portion with an angled seal mating surface facing toward the hoistway wall and spaced apart from the seal engaging surface of the wall-mounted portion. A seal is provided between the seal engagement surface and the seal mating surface to seal the transverse space therebetween to prevent smoke and gas to pass therethrough in the event of a fire when the hoistway doors are in the closed position.

Abstract: A finger guard for a door of an elevator comprising a brush carrier, which is arranged for attachment to an architrave adjacent the elevator door of the kind, which, for opening and closing, slides sideways in a vertical plane relative to the architrave, and a brush carried by the carrier and disposed to be directed outward from the architrave and into close adjacency with at least one of the elevator doors so as to be angled across a corner region between the architrave and the elevator door whereby to provide a guard against fingers being trapped between the door on the architrave in the corner region.

Abstract: A door sill arrangement for an elevator has a profiled sill element with upper and lower grooves. First and second door panels of the elevator are provided with first and second sliding guides, respectively. The first and second sliding guides move in the upper and lower grooves of the profiled sill element when the doors are opened. Upper and lower plastic bars are attached to the first and second sliding guides, respectively. The upper and lower plastic bars are pulled by the front sliding guides, when the door panels are opened. The upper and lower plastic bars slide along through the upper and lower grooves and substantially fill or cover the grooves which would otherwise be exposed when the door panels are opened.

Abstract: A safety gate (24) is slidable vertically from an upper position at an elevator cab landing (22) where it obstructs movement of the elevator cab (20) into a hoistway, and a lower position that permits cab travel between a car frame (29) and the landing. An actuator (42) normally urges the gate upwardly; the actuator is moved by a cam assembly (36) on an approaching elevator car frame so as to slide the gate (24) downward, out of the way of cab motion.

Abstract: In the overhead supporting beam of an elevator door, the roller races (4,5) for the rollers of the door panels are formed from one piece with the overhead supporting beam (1). The door operating mechanism (11) with the door operating motor (15) is fitted to form a single unit with the overhead supporting beam (1) of the door.

Abstract: The sliding door assembly for an elevator and a method for replacing an existing swinging elevator door with a sliding elevator door. The swinging door assembly is removed and is replaced in situ with a sliding elevator door assembly. A portion of the wall adjacent to the elevator door is removed, permitting the sliding door to slide into the part of the wall which has been removed. The part of the wall which has been removed and in which the sliding door fits is covered by a stationary panel. In another embodiment, there are two sliding doors that slide behind the side stationary panel. A left sliding entrance door and a right sliding entrance door are in separate planes so that one of the doors can slide behind the other.

Abstract: An apparatus for entraining and unlatching an elevator car door and a shaft door includes an electromagnet having a movable armature attached to a first bellows mounted on a wall of the car. An entraining and unlatching cam is attached to a second bellows which is mounted on the car door. The cam has stiffened cam entry surfaces, cam surfaces and front surface. The bellows are connected by a hose as a closed pneumatic system operating with below atmospheric pressure. When the electromagnet is not actuated, an internal compression spring in the second bellows extends the cam into engagement with rollers mounted on a shaft door to splay the rollers thereby unlatching the shaft door and entraining it with the car door. At the same time, the first bellows retracts the armature to unlatch the car door. When the electromagnet is actuated, the armature latches the car door and the second bellows retracts the cam to permit the rollers to fold toward one another thereby latching the shaft door.

Abstract: An elevator wiper (6) includes a sheet steel (7), installed in a removable fashion on side jams (2), (3) which face the surfaces (4a), (5a) of the elevator doors (4) and (5), and a sponge (8), installed on this sheet steel (7) in contact with the surfaces (4a), (5a) of the aforementioned doors (4), (5) for wiping dirt off.

Abstract: A safety edge assembly is provided for an electronic sensor system in an elevator doorway. A narrow elongated transmitter frame mounts appropriate electronic transmitting components of the system thereon and is fastened vertically on one side of the doorway. A narrow elongated receiver frame mounts appropriate electronic receiver components of the system thereon and is fastened vertically on the opposite side of the doorway. A power supply frame mounts appropriate electronic power components of the system thereon and is fastened in a piggyback fashion on the transmitter frame. Electrical cables are coupled between the electronic components on opposite sides of the doorway, the cables extending across the top of the doorway.