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Patent Searching and Data


Title:
DENTAL UNIT
Document Type and Number:
Japanese Patent JPH04189356
Kind Code:
A
Abstract:

PURPOSE: To obtain the appropriate retracting amount of a light or a tray table without using an expensive potentiometer and a controller by providing a sensor for detecting the heat part of a patient on the light, and retracting the light so as not to collide with the heat part of the patient by a signal from the sensor.

CONSTITUTION: An ultrasonic distances sensor 17 is provided on the front end part of a light 13, and when it is detected by this ultrasonic distance sensor 17 that the heat part of a patient approaches, the light 13 is retracted to a position in which it does not collide with the heat part of the patient by a height adjustment actuator provided on a light supporting part 15. Or an ultrasonic distance sensor 18 fro detecting the approach of the upper body of the patient to a tray table 8 is provided on the patient side end of the lower face of the tray table 8, and when it is detected by the ultrasonic distance sensor 18 that the upper body of the patient approaches, the tray table 8 is retracted to a horizontal position in which the upper body of the patient does not collide therewith by an actuator driven by a motor for retracting the tray table 8 provided on the tray supporting part.


Inventors:
WATANABE TATSUO
KIMURA SHIYUUSUKE
NOGUCHI KUNITOSHI
Application Number:
JP32016990A
Publication Date:
July 07, 1992
Filing Date:
November 22, 1990
Export Citation:
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Assignee:
MORITA TOKYO SEISAKUSHIYO KK
International Classes:
A61B19/00; A61C19/00; A61G15/10; (IPC1-7): A61B19/00; A61C19/00; A61G15/10
Attorney, Agent or Firm:
Yukio Murata (1 outside)