Abstract: An overwinding buffer device and method are employed for a vertical hoisting system including a derrick and a hoisting container. A hydraulic buffer device is disposed on the derrick, the hydraulic buffer device including at least one buffering hydraulic cylinder and buffering pressure rollers disposed corresponding to the buffering hydraulic cylinders; the buffering hydraulic cylinders are disposed on the derrick; piston rods of the buffering hydraulic cylinders are disposed horizontally and outer ends of the piston rods face towards the hoisting container; the buffering pressure rollers are horizontally fixed on an outer side wall of the hoisting container and arced surfaces of the buffering pressure rollers face towards the piston rods of the buffering hydraulic cylinders.

Abstract: Elevator toe guard assemblies are provided. The elevator toe guard assemblies include an elevator car frame, a buffer located within an elevator shaft, and a toe guard mounted to the elevator car frame. The toe guard has a first state being a fully extended state, a second state wherein the toe guard does not contact a pit floor during operation of an elevator car, and a third state wherein at least a portion of the toe guard is moved relative to the elevator car frame during an impact between the buffer and the pit floor.

Abstract: An elevator buffer system includes a buffer (44), a frame (30) spaced above the buffer, a platform (48) spaced above the frame, and a pre-compressed pad device (52) disposed between the frame and the platform and engaged to one of the frame and the platform. The system is constructed to move between a non-strike position, where the pre-compressed pad device is spaced from the other of the frame and the platform; a mid-strike position, where the pre-compressed pad device is in contact with the other of the frame and the platform; and a full-strike position, where the pre-compressed pad device is further compressed against the other of the frame and the platform.

Abstract: A buffer arrangement of an elevator includes at least a buffer of the elevator and a buffer stop, which includes at least a stem part fixed to its base and a stop element with adjustable height position fitted in connection with the stem part. The stop element includes a stopping surface for the buffer of the elevator. An extension part is in connection with the buffer stop for increasing the height position of the stopping surface of the buffer stop.

Abstract: In an oil buffer for an elevator, at least one cylindrical intermediate plunger is inserted into a base cylinder. An upper-stage plunger is inserted into the intermediate plunger. An orifice is provided in a bottom surface portion of the upper-stage plunger. A pin rod is provided upright in the base cylinder. The pin rod is inserted into the orifice in a middle of a stroke of the upper-stage plunger. A return spring causes the intermediate plunger and the upper-stage plunger to return to positions in an unloaded state.

Abstract: In an oil buffer for an elevator, at least one cylindrical intermediate plunger is inserted into a base cylinder. An upper-stage plunger is inserted into the intermediate plunger. An orifice is provided in a bottom surface portion of the upper-stage plunger. A pin rod is provided upright in the base cylinder. The pin rod is inserted into the orifice in a middle of a stroke of the upper-stage plunger. A return spring causes the intermediate plunger and the upper-stage plunger to return to positions in an unloaded state.

Abstract: The invention pertains to an Elevator car with a lower chassis (3) bearing the passenger platform (5) characterized in that said chassis (3) is provided with at least one rigid bottom shock absorbing leg (13) mounted so as to fold away under said chassis before being mounted in its service position.

Abstract: In a buffer device for an elevator, a hydraulic buffer that alleviates shock generated when a traveling body impacts at the bottom of a hoistway is located at the bottom of the hostway. Provided between the traveling body and the bottom of the hoistway is an elastic member that is elastically deformed and that alleviates the shock generated by the impact of the traveling body with the hydraulic buffer. The elastic member is arranged so that, when elastically deformed, almost fall of the elastic member is positioned within a range of a vertical dimension of the hydraulic buffer.

Abstract: A buffer creates at least one zone of protection in an elevator installation including an elevator car and a counterweight movable along respective paths in an elevator shaft. The buffer has a movable portion movable into the path of the elevator car and/or into the path of the counterweight in such a manner that the elevator car or the counterweight can be brought into mechanical contact with the movable portion and each of the elevator car and the counterweight is supported at a predetermined height above a floor of the elevator shaft so that a zone of protection is available below or above the elevator car.

Abstract: A buffer supports an elevator car and/or a counterweight for the elevator car, wherein the elevator car and the counterweight are each movable along a respective path in an elevator shaft. The buffer partly projects into the path of the elevator car and the path of the counterweight to produce a mechanical contact with the elevator car when the elevator car moves below a first spacing with respect to a floor of the shaft. The buffer additionally produces a mechanical contact with the counterweight when the counterweight falls below a second spacing with respect to the floor.

Abstract: A failsafe support for use with a height adjustable passenger loading bridge. A main support member supports the weight of a passenger loading bridge passageway under normal operating conditions. The failsafe support includes a self-arresting mechanism for varying a length of a height-adjusting portion of the failsafe support in order to raise and lower a support portion of the failsafe support. The support portion is positionable adjacent to and spaced apart from a lower surface of the passenger loading bridge passageway, for supporting the weight of the passageway in the event of a failure of the main support member. The self-arresting mechanism prevents the passageway of the passenger loading bridge from descending to a level below the support portion.

Abstract: In the buffer device for an elevator of the present invention, a hydraulic buffer that alleviates shock generated when a traveling body impacts a bottom of a hoistway is arranged at the bottom of the hoistway. Provided between the traveling body and the bottom of the hoistway is an elastic member that is elastically deformed and that alleviates the shock generated by the impact of the traveling body with the hydraulic buffer. The elastic member is arranged so that when elastically deformed, almost the whole thereof is positioned within a range of a vertical dimension of the hydraulic buffer.

Abstract: The present invention concerns an arrangement for a hoist to secure safety zones in case persons should be outside the hoist cage in a hoist shaft, comprising a means of identifying risk situations and mechanical means of limitation that can enter into the path of the hoist cage arranged at a distance from the upper and lower end limits of the hoist cage during normal operation in order to form an upper and a lower safety end limit, mechanically securing the said safety zones.