Emergency intercommunication system for elevator

• US 5,086,450 A
• Filed: 08/17/1990
• Issued: 02/04/1992
• Est. Priority Date: 08/23/1989
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Kitagawa, Shigeo, Yamamoto, Tomoichiro, Tachino, Kenzo, Nagata, Yasuhiro, Iwata, Shigemi, Tanino, Junichi, Hirabayashi, Terumi
• Primary Examiner(s): Dwyer, James L.
• Assistant Examiner(s): Chan, Wing F.
• Application Number:
  US07/568,884
• Time in Patent Office: 536 Days
• Field of Search: 379/40, 379/41, 379/45, 379/48-51, 379/103-105, 379/355, 187/130, 187/139, 187/140
• US Class Current: 379/40
• CPC Class Codes: H04M 11/04 with alarm systems, e.g. fire, police or burglar alarm systems

Abstract

An emergency intercommunication system for an elevator has an interphone unit and an intercommunication command switch located in an elevator car. A telephone number input apparatus for inputting the desired telephone number is provided in an elevator hall, in connection with a register apparatus for storing the input telephone number. An intercommunication command detecting section for detecting the actuation of the switch is provided in connection with an emergency call apparatus for automatically dialing the stored telephone number to connect the interphone unit with a telephone having the telephone number when the actuation of the switch is detected by the detecting apparatus. Preferably, an identification number input apparatus is provided in the elevator hall so that the register apparatus stores the telephone number only when it is input together with a predetermined identification number.

Claims

1. An emergency intercommunication system for an elevator comprising:

a telephone number input means provided in an elevator hall for inputting the desired telephone number;

a register means for storing the telephone number input through said telephone number input means;

an interphone unit and an intercommunication command switch both provided in an elevator car;

an intercommunication command detecting means for detecting the actuation of said intercommunication command switch; and

an emergency call means for, upon the detection of the actuation of said intercommunication command switch by said intercommunication command detecting means, automatically dialing the telephone number stored in said register means to connect said interphone unit with a telephone having the telephone number.

2. A system according to claim 1, further comprising an adapter for connecting said interphone unit with said emergency call means.

3. A system according to claim 2, wherein said adapter includes said register means and said intercommunication command detecting means.

4. A system according to claim 1, further comprising an identification number input means provided in said elevator hall for inputting an identification number, said register means storing a telephone number only when said telephone number and said identification number have been input from said telephone number input means and said identification number input means, respectively.

5. A system according to claim 4 wherein said telephone number input means is an apparatus for reading a card storing a telephone number, said register means storing the telephone number when said telephone number input means reads the telephone number from the card.

6. An emergency intercommunication system for an elevator comprising:

means for reading a card containing magnetic information including a telephone number;

a register for storing the telephone number read by said means for reading a card;

an intercommunication command detecting apparatus for detecting the actuation of an intercommunication command switch; and

an emergency call apparatus for dialing the telephone number stored in said register means upon detection of the actuation of the intercommunication command switch by said intercommunication detecting means, thereby connecting said interphone unit with said emergency call means.