This invention is concerning a car suspending pulley device including a pair of beams provided parallel to each other on a lower portion of a car and a car suspending pulley arranged between the pair of beams and supported by the pair of beams. A weight suspending pulley is provided on a counterweight. The car and the counterweight are suspended from a main rope wrapped around the car suspending pulley and the weight suspending pulley. A compensating member is suspended between the beams and the counterweight. The compensating member includes a funicular body having a first end portion connected to only one of the pair of beams and a second end portion connected to the counterweight. The first end portion of the funicular body is located in a region of the one beam when viewed in a vertical direction.

The invention relates to a method for managing flow of people and goods within a building under construction, comprising providing one or more elevator control systems for automatically controlling movement of elevator cars; providing a first passenger elevator, the first passenger elevator comprising a first passenger elevator car for transporting people, the first passenger elevator car being vertically movable in an elevator hoistway formed inside the building under construction, vertical movement of the car being automatically controlled by an elevator control system, the first passenger elevator car comprising an interior delimited by floor, walls, ceiling and at least one automatic door; and providing a goods elevator, the goods elevator comprising a goods elevator car for transporting goods, the goods elevator car being vertically movable beside the first passenger elevator car in an elevator hoistway formed inside the building under construction, vertical movement of the goods elevator car being automatically controlled by an elevator control system, the goods elevator car comprising at least a transport platform; using the first passenger elevator to transport passengers between floors of the building under construction; and using the goods elevator to transport goods between floors of the building under construction. The invention also relates to an arrangement for managing flow of people and goods within a building under construction, which arrangement implements the method.

A safety chain device includes a safety chain including a plurality of protective switches connected in series, each of the protective switches is configured to switch from a first state to a second state in the event of abnormal operation of a respective corresponding drive chain; a resistive network encoder having a plurality of encoder output values, each of the encoder output values corresponds to one of combinations of states of the plurality of protective switches; a processor coupled with the resistive network encoder and configured to output a level signal corresponding to the encoder output values; a first controlled current source coupled with the safety chain and configured to output a first current corresponding to a current flowing through the safety chain; and a second controlled current source coupled with the processor and configured to output a second current corresponding to the level signal.

A vertical lift conveyor for lifting materials between different vertical levels. The vertical lift conveyor includes a pair of spaced uprights and a carriage that moves vertically along the spaced uprights. The vertical lift conveyor includes a drive assembly including a drive motor coupled to a drive shaft. Each end of the drive shaft includes a first sprocket and a second sprocket that each engages one of a pair of lift chains. The first and second sprockets each include a plurality of teeth (N). The first and second sprockets are offset from each other 180/N. The offset between the first and sprockets creates sinusoidal velocity profiles for the two chains that are out of phase with each other. A connection block is used to connect the pair of lift chains to each side of the carriage combines the lift chain velocities into a linear vertical velocity for the carriage.

Chain links and a conveyor chain that is highly resilient, in a tensile direction, for a moving walkway, an escalator or a lift. A chain link can include two chain link connector receiving regions arranged at opposing ends for receiving a chain link connector, which mechanically connects two neighboring chain links to one another in such a way that a tensile force can be transmitted therebetween. The chain link can also include a loop closed in a ring shape and surrounding the two chain link connector receiving regions. The loop can be formed with a fiber composite material. The fiber composite material is preferably in the form of a loop-like closed band, in which fibers, such as carbon fibers that can be subjected to high levels of tension, are embedded in an elastomer-matrix material.

The invention relates to chain links (52) and a conveyor chain (50), which can be assembled with same and which is highly resilient in a tensile direction, for a moving walkway, an escalator (1) or a lift (90). A chain link has two chain link connector receiving regions (54) arranged at opposing ends of the chain link (52) for receiving a chain link connector (62), which mechanically connects two neighboring chain links (52) to one another in such a way that a tensile force can be transmitted from one chain link to the neighboring chain link. The chain link (52) also has a loop (56) closed in a ring shape and surrounding the two chain link connector receiving regions (54). The loop (56) is formed with a fiber composite material (57). The fiber composite material (57) is preferably in the form of a loop-like closed band, in which fibers (58), such as carbon fibers that can be subjected to high levels of tension, are embedded in an elastomer-matrix material (60). The chain links (52) are therefore very resistant to tension, however they are flexible in a bending direction (63) perpendicular to same. With a deflecting of the conveyor chain on a conveyor wheel, using support structures that are radially outwardly supporting the loop (56), the shape of the chain links is adapted to that of the conveyor wheel, and in this way, polygon effects and resulting jerking during the conveying of the conveyor chain are avoided.

This invention is concerning a car suspending pulley device including a pair of beams provided parallel to each other on a lower portion of a car and a car suspending pulley arranged between the pair of beams and supported by the pair of beams. A weight suspending pulley is provided on a counterweight. The car and the counterweight are suspended from a main rope wrapped around the car suspending pulley and the weight suspending pulley. A compensating member is suspended between the beams and the counterweight. The compensating member includes a funicular body having a first end portion connected to only one of the pair of beams and a second end portion connected to the counterweight. The first end portion of the funicular body is located in a region of the one beam when viewed in a vertical direction.

A vertical lift conveyor for lifting materials between different vertical levels. The vertical lift conveyor includes a pair of spaced uprights and a carriage that moves vertically along the spaced uprights. The vertical lift conveyor includes a drive assembly including a drive motor coupled to a drive shaft. Each end of the drive shaft includes a first sprocket and a second sprocket that each engages one of a pair of lift chains. The first and second sprockets each include a plurality of teeth (N). The first and second sprockets are offset from each other 180/N. The offset between the first and sprockets creates sinusoidal velocity profiles for the two chains that are out of phase with each other. A connection block is used to connect the pair of lift chains to each side of the carriage combines the lift chain velocities into a linear vertical velocity for the carriage.

A vertical lift conveyor for lifting materials between different vertical levels. The vertical lift conveyor includes a pair of spaced uprights and a carriage that moves vertically along the spaced uprights. The vertical lift conveyor includes a drive assembly including a drive motor coupled to a drive shaft. Each end of the drive shaft includes a first sprocket and a second sprocket that each engages one of a pair of lift chains. The first and second sprockets each include a plurality of teeth (N). The first and second sprockets are offset from each other 180/N. The offset between the first and sprockets creates sinusoidal velocity profiles for the two chains that are out of phase with each other. A connection block is used to connect the pair of lift chains to each side of the carriage combines the lift chain velocities into a linear vertical velocity for the carriage.

A chain drive unit (4, 5, 6) for reducing chain vibrations comprising a chain wheel unit (43) with at least two sprockets (431, 432) that are arranged parallel on a common rotation axle, at least two parallel chains (51, 52) engaging these sprockets (431, 432). At least one damping element (6) connecting two adjoining chains (51, 52). The circumferential orientation of two adjoining sprockets (431, 432) differs by a partial pitch (pP) and the damping element (6) comprises a first fixation (61) on its one free end for the lateral fixation to the first chain (51), a second fixation (62) on its opposite free end for the lateral fixation to the second chain (52) and a force transmission unit (63, 8, 9) arranged between the first and the second fixation transmitting an applied force from the first fixation (61) to the second fixation (62) and vice versa.