Title:
ELEVATOR
Document Type and Number:
Japanese Patent JP3319635
Kind Code:
B2
Abstract:
PURPOSE: To prevent a door from being closed while a baggage is carried in and secure safety by providing load detecting devices in a car and at a landing, and making the door open period longer as the load of the landing becomes larger.
CONSTITUTION: A door closure detecting relay contact 3 and a travel relay contact 7a are closed while a car is traveled in response to a landing call, and capacitors 5, 8 are set to the charged state. When the car is stopped in response to the landing call and a door is opened, the door closure detecting relay contact 3 and the travel relay contact 7a are opened. When the load of the landing is large and a load detecting device contact 1 is closed, a load detecting relay 2 is excited to close its contact 2a. A timing relay 4 is de-excited by the discharge of the capacitors 5, 8 after a period elapses which is longer than that when the load detecting relay 2 is not excited, and the period until a door control relay 12 is excited is extended.
Inventors:
Yasukazu Otsuki
Application Number:
JP27669993A
Publication Date:
September 03, 2002
Filing Date:
November 05, 1993
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01G19/52; B66B3/00; B66B13/14; (IPC1-7): B66B13/14
Domestic Patent References:
| JP54132947A | ||||
| JP52131336A | ||||
| JP4101989A | ||||
| JP63167478U |
Attorney, Agent or Firm:
Kenji Yoshida (2 outside)