Title:
UNDERGROUND STRUCTURE LID WITH OPENING MECHANISM
Document Type and Number:
Japanese Patent JP3706426
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an underground structure lid having high opening force, inexpensive, and hardly broken.
SOLUTION: A first link member 4 fixed to a lid body 2 by a bearing shaft 4b and a second link member 5 fixed to a receiving frame 1 by a bearing shaft 5b are connected through an engaging surface 4c and an engaging shaft 5c to form a toggle joint mechanism which is an assisting mechanism. The force generated by a lever 3 which is ordinarily housed in the inside of the lid body 2 and functions as an input means by being pulled out is transmitted to the first link member 4, the space between the bearing shaft 4b and the bearing shaft 5b is extended by tilting the lever 3 on the receiving frame 1 side, the force for pushing up the lid body 2 from the receiving frame 1 is generated to open the lid body 2.
Inventors:
Shoichi Saito
Application Number:
JP4965296A
Publication Date:
October 12, 2005
Filing Date:
February 14, 1996
Export Citation:
Assignee:
Hinode Water Supply Equipment Co., Ltd.
International Classes:
E02D29/14; (IPC1-7): E02D29/14
Domestic Patent References:
| JP62007447U | ||||
| JP3065746U |
Attorney, Agent or Firm:
Takemichi Fukuda
Kenzo Fukuda
Shinichi Fukuda
Kenzo Fukuda
Shinichi Fukuda