Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SIGNAL TRANSMISSION SYSTEM FOR ELEVATOR
Document Type and Number:
Japanese Patent JPH0840655
Kind Code:
A
Abstract:

PURPOSE: To obtain a high shielding effect even a shielding structure having an opening part by providing a U-shaped cover made of metal for shielding antennas and housing the antennas installed in a tower and car in a recessed part inside the U-shaped cover.

CONSTITUTION: In a inclined elevator formed so that a car 8 travels on main rails 10 and 10a through roller guides 11 and 11a, a coupler 3 is installed on the car 8 through a mounting bracket 3a, and a U-shaped cover 1 formed so that it covers the coupler 3 is fixed to a in-tower floor surface 5 through a bracket 4. Also a cable antenna 2 is arranged in the cover 1 so that it is opposed to the coupler 3, and radio signals for digital data, sound and video, etc., are transmitted ad received from and onto one surface of the opposed antenna. By arranging the cable antenna 2 and coupler 3 this in the U-shaped cover, noise can be shielded effectively.


Inventors:
ONISHI TOMOJI
ANDO TAKEYOSHI
INABA HIROMI
MEGURO TOSHIO
YAHIRO SEINOSUKE
YOSHIOKA TSUTOMU
TAKAHASHI KENJI
Application Number:
JP17511194A
Publication Date:
February 13, 1996
Filing Date:
July 27, 1994
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI LTD
HITACHI BUILDING SYST ENG
International Classes:
B66B3/00; B66B7/00; H01Q17/00; H05K9/00; (IPC1-7): B66B3/00; B66B7/00; H01Q17/00; H05K9/00
Attorney, Agent or Firm:
Ogawa Katsuo