Title:
UNATTENDED CARRIAGE SYSTEM
Document Type and Number:
Japanese Patent JPS62222309
Kind Code:
A
Abstract:
PURPOSE:To improve work environments and to secure a sufficient safety by stopping an alarm tone when an unattended carriage is run normally and emitting the alarm tone when an obstacle is detected ahead of the carriage. CONSTITUTION:A unattended carriage 13 is provided with a running controller 1, a running motor 2, a decelerator 3, running wheels 4, etc., and its safety device consists of a rotation detector 5 of the running motor 2, a running detector 6, an obstacle detector 7, and an alarm device 8 which outputs an alarm tone signal to a speaker 9. This alarm device 8 outputs an alarm only when both of a running detection signal and an obstacle detection signal are generated. The running controller 1 reduces the rotation number of the running motor 2 to reduce the speed of the unattended carriage 13. Since the alarm tone is emitted and the speed is reduced only in case of danger, the noise is minimized.
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Inventors:
MURATA HITOSHI
Application Number:
JP6628786A
Publication Date:
September 30, 1987
Filing Date:
March 25, 1986
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
B60R21/00; B60W30/00; G01S15/93; G01S17/88; G01S17/93; G05D1/02; B60Q5/00; G05D1/12; (IPC1-7): B60Q5/00; B60R21/00; G01S15/93; G01S17/88; G05D1/12
Attorney, Agent or Firm:
Takehiko Suzue
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