An elevator apparatus including an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave and a driving mechanism is positioned between an inner wall of the elevator path and a space occupied by an elevator car rising and falling in the elevator path. One end of a suspension rope is fixed to the elevator car in a position below a ceiling of the elevator car. With the arrangement, the car can move close to the ceiling of the elevator car effectively. Further, it is possible to reduce respective heights of the elevator path and a building equipped with the elevator apparatus.

Traction type elevator apparatus

A one-touch joint for a flexible tube. A tapered surface is formed on the inner circumference of a fastening ring, and a ring-shaped retainer is positioned between the tapered surface and a seal member. When the flexible tube is inserted into the retainer, projections in the retainer are pushed open elastically by peak sections of a corrugated tube, and when a peak section has passed, the projections engage with a valley section of the corrugated tube. The joint and flexible tube can be coupled in a one-touch operation, simply by inserting the flexible tube. Moreover, excellent sealing properties and detachment prevention properties are obtained between the joint and the flexible tube.

One touch joint for flexible tube

The present invention provides an elevator controller including: a main control unit for controlling running of an elevator, in which the main control unit predictively calculates a continuous temperature state of a predetermined componential equipment of the elevator and performs an operation control of the elevator based on the predicted temperature state such that the componential equipment is not overloaded. Accordingly, a temperature rise in the componential equipment is suppressed, thereby enabling to prevent the elevator from becoming inoperable.

Control device for elevator

An elevator including a cage configured to move up and down in a shaft along a guide rail, a plurality of car sheaves installed at a bottom of the cage, a cable placed around the car sheaves and configured to suspend the cage, a hoisting machine having a traction sheave configured to drive the cable, a base extending in a width direction of the cage and configured to support the car sheaves, and a first elastic member disposed between the cage and the base so as to attenuate vibration transferred to the cage.

Traction type elevator

Controlling operating device for elevator

Operation method on earthquake of elevator

Vibration absorber for elevator

Guide rail device for elevator

PURPOSE:To prevent temperature rising in a noise-proof cover with the minimum facilities by arranging the radiator fan of an oil cooling device in an exhaust- accelerating condition in the vicinity of the exit of an air outlet for ventilation cooling in the noise-proof cover CONSTITUTION:The hydraulic pump 12 of a hydraulic power unit, and the driving motor 13 and the flow control valve 14 of the hydraulic pump 12 are covered with a noise-proof cover 21, and also a cooling pump 19, circulatively supplying oil in an oil tank 10 to a radiator 17 via piping, is installed An inlet port 22 and an air outlet 23A for ventilation cooking are provided on the noise- proof cover 21 The air outlet 23A is provided on a ceiling part near to the other end of the inlet port 22, the exit 23a of the air outlet 23A is opened facing the fan 18 of the radiator 17 via a bent duct, and exhaust from the air outlet 23A is accelerated by the exhausting action of the fan 18 Consequently air in the noise-proof cover 21 can be renewed without providing another exhausting fan to prevent temperature rising in the noise-proof cover 21 with simple constitution

Miyasako Kazunori

Papers

Operation method on earthquake of elevator

Vibration absorber for elevator

Guide rail device for elevator

Power unit for hydraulic elevator

Detector for load for elevator