Hitachi, Ltd.

Fanuc Corporation

Hitachi Elevayor Engineering and Service Co., Ltd.

Hiroshi Kinoshita

Toshiyuki Aso

Tatsuo Iwasaka

Haruki Obara

Takashi Kaneko

Takeo Yuminaka

Hisao Hanmura

Tamotsu Ishibashi

Kenichi Watanabe

Shigeyoshi Kawano

Masayuki Shigeta

Tamotu Shikamori

Toshihiko Nara

Isao Hiyama

Eiji Ikeda

Hiroshi Ohsugi

Hideyuki Tobita

Masanobu Itoh

Jun Sugahara

Yoshiaki Takeda

Takeo Honma

Tastuhiko Takahashi

Katutaro Masuda

Akira Tatsumi

Sizuo Thuruta

Masayoshi Hirayama

Toshikazu Ohonishi

Kenichi Kubo

Yoshio Ohwa

Nobuo Satou

Koichi Goto

Toru Ozawa

Yoshinari Atsumi

Yuki Yamamoto

Hideaki Seki

Kazufumi Ikeda

Nobuyoshi Sato

Shinkei Kakami

Toshiyuki Hori

Tatsuo Iwaska

A passenger transport installation in which a large number of people can be efficiently transported between at least two vertically-spaced places. Stations communicate with a vertical elevator passage or passages along which vehicles can move upward and downward, and the vehicles stop at the stations to allow passagers to get on and off. While passengers get on and off the vehicles at the stations, other vehicles carrying other passengers can move upward and downwardly along the elevator passage or passages.

Passenger transport installation, vehicle for use therein, and method of

In a full-automated washer, a cloth amount sensor detects a quantity of an object being washed which is thrown into a washing drum as a value inclusive of information regarding a degree of bulkiness of the object to be washed. A processing circuit included in the full-automated washer is responsive to a detection output signal from the cloth amount sensor to determine a water supply amount, a cleanser feed amount, a stirring time and a rinsing time. The cloth amount sensor is mounted to a stirring motor. Upon an OFF-state of the motor, the detection output signal is generated by measuring a voltage waveform induced by inertial motion which varies in accordance the degree of bulkiness of the object to be washed.

Full-automated washer

Automatic wire extension method

Apparatus for detecting a failure in automatic wire extension

Automatic wire connecting apparatus for wire cut electric discharge

Wire cut electric discharge machine

Electric discharge machining apparatus of wire-cutting type

Wire-cut electrical discharge machine

A drum type laundry dryer has an outer frame, a drying drum rotatably supported by the outer frame and adapted to receive laundry to be dried, a fan for introducing air into the drying drum, a heater for heating air to be introduced into the drying drum, air outlet ports in the drying drum and a filter device adjacent to the air outlet ports. The filter device is formed by a net and a lint collector disposed in opposite relationship to the net. The lint collector is annular and spaced from the net a distance which is smaller in the inlet section of the lint collector than in an inner section thereof.

Drum type laundry dryer

An electric fan having a rotary grille provided with a plurality of inclined grille plates and a small-sized reversibly rotatable synchronous electric motor adapted to rotatively drive the rotary grille. A plurality of pairs of projections are formed on a peripheral portion of the rotary grille at different distances from the center of the rotary grille and at different angular intervals. A slidable stopper is mounted on the frame of the electric fan. The stopper is adjustably positionable so as to enable engagement with selected one of the pairs of projections or to a position where it does not contact the projections, so that the rotary grille is reciprocatingly rotated within an angular range limited by the projections or rotated continuously in one direction to vary the area or region of application of an air flow.

Electric fan

Apparatus for detecting the number of objects such as persons in which at least one ultrasonic wave signal transmitter-receiver is used to transmit ultrasonic wave signals toward objects the number of which is to be detected, and to process waves reflected therefrom, thus determining the number of such objects existing within a predetermined area. When plural ultrasonic wave transmitter-receivers are used, they are so arranged that their detection regions are partly overlapped, thereby assuring uniform detection sensitivity over the area. A detection time is reduced by simultaneously driving the ultrasonic wave signal transmitter-receivers. The ultrasonic wave transmitter and receiver of each transmitter-receiver may be directed to different points in a target plane within a range permitting the receiver to receive reflected ultrasonic wave signals, thereby equalizing the detection sensitivity in the direction of the difference, thus improving the detection accuracy. Only one ultrasonic wave signal transmitter-receiver may be used for attaining the same effect, which is provided with one transmitter and plural receivers, or with one receiver and plural transmitters, the one transmitter or receiver and the plural receivers or transmitters being directed to respective different points in a target plane within a range permitting the receiver or receivers to receive reflected ultrasonic wave signals.

Apparatus for detecting the number of objects

An elevator control system for controlling a plurality of elevator cars arranged for parallel operation for servicing a plurality of service floor landings of a building, in which means are provided so that, in response to origination of a new hall call in addition to hall calls originated and allotted already, a suitable car for servicing this new hall call can be selected and the new hall call can be allotted to the selected car to be serviced by the selected car. In the system, the change in the service condition of all the cars for the already allotted hall calls due to allotment of this new hall call thereto is taken into account in selecting the suitable car. For example, means are provided for computing for each car the forecast waiting time at each of the already allotted floors to be serviced thereby to detect the change in the forecast waiting time when this new hall call originating floor is serviced. The new hall call is allotted to the car which provides a forecast waiting time less than a predetermined limit, and this car services this specific floor.

Elevator control system

Apparatus for detecting the number of objects such as the number of persons located within a predetermined area. Ultrasonic wave is emitted toward the objects, the number of which is to be determined, and the reflected waves from the objects are received by a receiver. Among the received reflection waves, the waves having an amplitude greater than a predetermined peak value are derived as the useful reflection wave signal having a constant peak value. The number of the objects is determined based on the quantity of the derived reflection wave signals having the constant peak value. By emitting the ultrasonic wave for every unit time, the derived reflection wave signals having the constant peak value may be averaged by means of a smoothing circuit.

An elevator control apparatus is provided with means for detecting a new type of elevator car traffic information consisting of the information indicating, by allotting the passengers in the car to resistered cage calls, how many passengers classified for each of destination floors are in the car, namely, the information indicating the number of in-cage passengers classified for each of destination floors. In an apparatus comprising means for allotting a hall call generated to an optimum one of a plurality of cars and means for detecting the number of prospective passengers waiting on the floors, the number of prospective passengers waiting at the floor the hall call from which is allotted to the car and the number of passengers classified for each of destination floors are added to or subtracted from the number of passengers in the car for each floor involved thereby to forecast the number of in-cage passengers in the leading floors. It is decided whether there is room available or not in the car for accomodating additional passengers at the leading floors, by comparing the forecast number of passengers in the car with a predetermined number limit of the passengers for the car. By the use of the result of this decision, the hall call is prevented from being allotted to a car having no room for accomodating additional passengers.

Elevator control apparatus

Elevator cars for servicing a plurality of floors are under the control of register means provided at elevator halls to registrate the hall calls for the up- and down-directions. Detector means are installed at the elevator halls to detect the number of the passengers awaiting the cars at the halls. Discriminator means are employed to obtain the information concerning the number of the car awaiting passengers classified for each of the directions of their destinations. The information thus obtained is utilized in the elevator control apparatus to operate the elevator system with a high working efficiency. When the hall calls for one direction are registrated, the detected number of the car awaiting passengers is regarded as the number of the awaiting passengers for the hall calls of the above one direction. When the hall calls for the two directions are registrated, the detected number of the car awaiting passengers are divided into two classes, one for one direction and the other class for other direction on the basis of an appropriate dividing ratio, to thereby detect the number of the awaiting passengers for each of the directions of their destinations. This information about the number of the passengers for each of the directions is utilized in the elevator control operation for allotting the registrated hall calls to the cars. Adder devices are provided for adding together the number of the car awaiting passengers relevant to the allotted hall calls and the number of the passengers in the car to estimate the number of the passengers to be transported by the car. The information of the estimated number of the passenger is utilized for predicting the possible occurrence of the car-full condition. The allotment of the hall calls to the car for which the no-vacancy condition is predicted is restricted.

Control apparatus for elevators

Growing community of inventors

Hachioji, Japan

Hiroshi Kinoshita