An illustrative example embodiment of an elevator system includes a cab configured to accommodate at least one passenger or item inside the cab. A motorized module includes a base, a connector supported on the base and at least one drive member supported on the base. The connector is configured to selectively establish a releasable connection between the motorized module and the cab. The drive member is configured to engage a vertical surface, climb along the vertical surface to selectively cause vertical movement of the base, and selectively prevent movement of the base when the drive member remains in a selected position relative to the vertical surface. At least one motor is associated with the drive member to selectively cause the drive member to climb along the vertical surface. The motorized module is vertically movable independent of the cab when the motorized module is released from the cab.

In an elevator hoisting machine mounting device, an elastic support device includes a supporting elastic body that deforms elastically upon reception of a load from a hoisting machine unit. A buckling suppression device disposed at a remove from the elastic support device in a horizontal direction includes first and second buckling suppression elastic bodies that sandwich, from above and below, a buckling suppression attachment portion provided on a lower portion of the hoisting machine unit, and a holding tool that holds the first and second buckling suppression elastic bodies on a machine base. The buckling suppression device suppresses, by an elastic restoring force of the first and second buckling suppression elastic bodies, buckling of the hoisting machine unit relative to the machine base due to the elastic deformation of the supporting elastic body.

A belt for suspending and/or driving an elevator car includes a plurality of tension elements extending longitudinally along a length of the belt, and a jacket at least partially encapsulating the plurality of tension elements. The jacket defines a traction surface of the belt configured to be interactive with a drive sheave and a back surface opposite the traction surface. The jacket is formed from a first material. One or more material strips are located at one or more of the traction surface or the back surface to improve one or more operational characteristics of the belt. The one or more material strips formed from a second material different from the first material.

An elevator includes a car and a counterweight suspended on hoisting ropes which are driven by a drive machine. The counterweight has a first side facing the elevator car path and a second side opposite to the car path. The counterweight includes at least one connecting passage between the first and second side of the counterweight. With this solution, air pressure built between the car and the counterweight when passing in the elevator shaft is reduced and the travel comfort is improved.

An elevator pit having a waterproof cement floor and method for installing the same. The elevator pit includes a jack casing and a drainage pit installed within the elevator pit. A trench is formed in exposed ground surface and defines a channel having a first end positioned at an area that is susceptible to water accumulation within the elevator pit and a second end terminating at the drainage pit. A perforated conduit extends within the channel with an end terminating at the drainage pit. A layer of gravel is disposed over the exposed ground surface and trench at a predetermined height to cover the perforated conduit. A layer of waterproof cement is provided over the ground surface at a predetermined height to cover the gravel, channel and perforated conduit to form the waterproof cement floor which extends across an entire periphery of the elevator pit.

An attic lift system is provided, comprising a loading platform attached to a lifting frame having a plurality of vertical frame members, wherein the lifting frame includes a closure member positioned below the loading platform. The closure member includes a plurality of telescopic guide members, wherein the support frame is positioned on an attic floor above an opening in the attic floor. A plurality of support rods extend from the closure member and are threadably engaged with the vertical frame members of the lifting frame. A drive assembly is positioned on the support frame and connected to the lifting frame for raising and lowering the loading platform relative to the opening. Limit switches are present to detect when the drive assembly should be stopped based on the position of the lift platform.

An elevator system comprising multiple elevator cabs operating independently in an elevator shaft. Each cab comprises a pair of underslung suspension cables, equally spaced apart from the center of the cab; a lift motor at a top surface of the shaft having an axle with a traction sheave at each end of the axle; each set of suspension cables connected at a first end to a hook at the top surface, engaging a pulley connected to a counterweight, engaging a first traction sheave, engaging a cab pulley, slung under the cab, engaging a second cab pulley and terminating at a second end connected to the top surface. Each set of four cab pulleys of each elevator cab is progressively and symmetrically located closer to the center of each cab, so that suspension cables, counterweights, pulleys, hooks, lift motors, axles, and traction sheaves will not horizontally or vertically conflict with each other.

A battery powered elevator system in which the battery and power electronics needed to connect the battery to the machine driving the elevator system are mounted in close proximity within the hoistway of the elevator system to minimize power transmission losses.

An elevator system has a car assembly including a first elevator car, a second elevator car, a counterweight, and a drive machine unit having a traction sheave and a traction device guided over the traction sheave. The traction device is connected to the car assembly and the counterweight on opposite sides of the traction sheave. An adjustment mechanism enables the second elevator car to be adjusted in relation to the first elevator car within the car assembly. The adjustment mechanism has an adjustment device, a first adjustment traction device and a second adjustment traction device. The first adjustment traction device and the second adjustment traction device are guided over the adjustment device. The first adjustment traction device and the second adjustment traction device are connected to the second elevator car on one side of the adjustment device and to the counterweight on the other side.

The invention relates to an elevator arrangement with multiple elevator cars in the same elevator shaft, the arrangement at least an uppermost elevator with its operating system, hoisting machinery and elevator car, and a lowermost elevator with its operating system, hoisting machinery and elevator car, which elevator cars are arranged to run in the same elevator shaft along the same guide rails. The types of the two elevators in the same elevator shaft are mutually different from each other.