Title:
OPENING AND CLOSING DEVICE
Document Type and Number:
Japanese Patent JP2017106215
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an opening and closing device capable of easily and safely performing opening and closing work for an opening part of a manhole in a short time.SOLUTION: The present invention relates to an opening and closing device 9 for a manhole lid 1 which is mounted detachably at an opening part of a manhole 21, the opening and closing device comprising: pushing-up means 10 provided on a reverse surface of the manhole lid 1, and obtaining reaction force from a receiving frame 24 provided at the opening part of the manhole 21 to push up the manhole lid 1; and moving means 16 provided on the reverse surface of the manhole lid 1, and capable of moving on a ground surface 35 at a periphery of the manhole 21 in contact with the ground surface 35 while enabled to move inside and outside the manhole lid 1.SELECTED DRAWING: Figure 1
Inventors:
KISE SHINICHI
INABE AKITO
MUKAI TOMOAKI
KIRIKAWA KAZUHIRO
INABE AKITO
MUKAI TOMOAKI
KIRIKAWA KAZUHIRO
Application Number:
JP2015240179A
Publication Date:
June 15, 2017
Filing Date:
December 09, 2015
Export Citation:
Assignee:
CHUGOKU ELECTRIC POWER CO INC
International Classes:
E02D29/12
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation
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