Title:
POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2018068699
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To safely supply power from a pit to a wagon retained at a pit.SOLUTION: A power supply device is provided between a movable wagon and a pit where the wagon can be retained at a predetermined retaining position. The power supply device includes: a power supply case having a window provided on the pit; a power supply terminal provided inside the power supply case; a power receiving terminal provided on the wagon and that enters into the window at the retaining position and connects to the power supply terminal; detection means that detects the entry of the power receiving terminal into the window; and switching means which connects the power supply terminal to a power source only when the detection means detects the entry of the power receiving terminal into the window.SELECTED DRAWING: Figure 7
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Inventors:
SAKAI NOBUTAKA
FUJINAMI TOMOJI
YAMAMOTO SHINYA
FUJINAMI TOMOJI
YAMAMOTO SHINYA
Application Number:
JP2016212654A
Publication Date:
May 10, 2018
Filing Date:
October 31, 2016
Export Citation:
Assignee:
KOKUYO KK
SHOWA SEIKI KK
SHOWA SEIKI KK
International Classes:
A47B31/00; A47B97/00; A61G12/00
Attorney, Agent or Firm:
Kazuhiro Akazawa