Title:
油圧ショベル
Document Type and Number:
Japanese Patent JP6886351
Kind Code:
B2
Abstract:
To provide a boom connecting pin capable of reducing work of inserting a boom connecting pin when a boom is connected to a main body portion.SOLUTION: A boom is disposed between boom mounting portions 25a and 25b provided on a main body portion so that the positions of pin holes of the boom and the positions of pin holes 24a and 24b of the boom mounting portions 25a and 25b are made to coincide with each other, the boom connecting pin 30 is inserted into the pin hole to connect the boom and the main body portion and comprises first fitting portions 31a, 31b fitted in a boom foot on both sides in the width direction inside the pin hole of the boom, second fitting portions 32a, 32b fitted in the pin holes 24a, 24b of the boom mounting portions 25a, 25b, and a non-fitting portion 35 located between the first fitting portions 31a, 31b. The diameter of the non-fitting portion 35 is smaller than the diameters of the first and second fitting portions 31a, 31b, 32a, 32b.SELECTED DRAWING: Figure 3
Inventors:
Takenori Nishizawa
Application Number:
JP2017107947A
Publication Date:
June 16, 2021
Filing Date:
May 31, 2017
Export Citation:
Assignee:
Takeuchi Manufacturing Co., Ltd.
International Classes:
E02F9/00; F16C11/04
Domestic Patent References:
| JP2011236944A | ||||
| JP3048117U |
Foreign References:
| US20040228676 |
Attorney, Agent or Firm:
Shunichi Yoshimura