Title:
CONNECTION STRUCTURE
Document Type and Number:
Japanese Patent JP2019189391
Kind Code:
A
Abstract:
To provide a connection structure that is able to easily connect an undercarriage and a revolving superstructure.SOLUTION: A connection structure according to the present invention, which is a connection structure for an undercarriage and a revolving superstructure of a construction machine, comprises: an insertion wall provided on one of the undercarriage and the revolving superstructure and having a vertically extending engagement hole in the form of a long hole; a pair of receiving walls provided on the other of the undercarriage and the revolving superstructure, defining an empty space in which the insertion wall is inserted, and having a fixing hole in a position corresponding to an upper end of the engagement hole; and a fixing device provided on the other of the undercarriage and the revolving superstructure, having a fixed pin inserted into the engagement hole and the fixing hole, and used for insertion/removal of the fixed pin into/from the engagement hole. The fixing device has: a passive member disposed between an empty space between the pair of receiving walls and pushed there by insertion of the insertion wall; a transmission mechanism that converts a pushed motion of the receiving members into an insertion motion of the fixed pin into the engagement hole; and an urging member that urges the transmission mechanism in a direction in which the fixed pin is pulled from the engagement hole.SELECTED DRAWING: Figure 3
Inventors:
HAMAGUCHI HIROMITSU
Application Number:
JP2018082841A
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
KOBELCO CONTSTRUCTION MACHINERY LTD
International Classes:
B66C23/26; E02F9/08
Attorney, Agent or Firm:
Hajime Amano
Fujimoto Katsune
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kenichi Fujinaka
Matsuura Masako
Fujimoto Katsune
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kenichi Fujinaka
Matsuura Masako