Title:
建設機械のブーム取付構造
Document Type and Number:
Japanese Patent JP7200771
Kind Code:
B2
Abstract:
There is provided a boom mount device of a construction machine that can easily align a boom with an upper frame of the construction machine when mounting the boom on the upper frame. The upper frame (31) includes a center section (4) including one pair of left-and-right vertical plates (43L and 43R). The vertical plates (43L and 43R) include outside surfaces facing outside and guide parts (431L and 431R) disposed on the outside surfaces and guide holes are formed. An adapter (7) that pivotably connects a base end of the boom and a base end of a boom cylinder is mounted on the base end side of the boom. The adapter includes one pair of left-and-right guide pins (75L and 75R). When the boom is mounted on the upper frame, the one pair of left-and-right guide pins is inserted into the guide holes of the one pair of left-and-right guide parts.
Inventors:
Ichiro Wada
Yukio Miyano
Yukio Miyano
Application Number:
JP2019049110A
Publication Date:
January 10, 2023
Filing Date:
March 15, 2019
Export Citation:
Assignee:
Kobelco Construction Machinery Co., Ltd.
International Classes:
E02F9/00; E02F3/38
Domestic Patent References:
| JP2010059693A | ||||
| JP1028136Y2 |
Attorney, Agent or Firm:
Hiroomi Tateishi
Yoshihiro Izumi
Yoshihiro Izumi
Previous Patent: Electronics
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