The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Feb. 22, 2017
Hitachi Construction Machinery Tierra Co., Ltd., Koka, JP;
Yoshifumi Takebayashi, Shiga, JP;
Hajime Yoshida, Shiga, JP;
Kazushige Mori, Shiga, JP;
Natsuki Nakamura, Shiga, JP;
Taihei Maehara, Shiga, JP;
Abstract
To provide a small hydraulic excavator, which even may have an upperstructure formed such that at least its rear end swings within a body width range and having a limited installation space for devices, that allows an accumulator to be disposed and allows the accumulator to be protected from external force generated during work. The present invention relates to a rear small-swing type mini excavator that includes an accumulatoraccommodating and recovering potential energy and hydraulic energy used by at least one of drives of an undercarriage, an upperstructureformed such that its rear end swings within the body width range of the undercarriage, and a working device. In the rear small-swing type mini excavator, the accumulatoris disposed between a valve blockand a front longitudinal boardof a longitudinal board member included in a main framealong the front longitudinal board, and a pipe connected to the accumulatorand the valve blockis disposed closer to the accumulatorand the valve block