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:
Jun. 18, 2024
Filed:
Sep. 28, 2018
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Koji Hyodo, Kasumigaura, JP;
Masaki Yoshikawa, Kasama, JP;
Tetsuji Tanaka, Abiko, JP;
Masaki Nukii, Ushiku, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
Provided is a loading work vehicle capable of improving work efficiency even when working on a slippery road surface. An HST-traveling-drive wheel loadercomprises a step-on amount detection sensor, a discharge pressure detection sensor, a mode switch device, and a controller. The controlleris configured to: determine whether a limit mode is selected by the mode switch device; specify an operation state of the wheel loaderwhen determining that the limit mode is selected; limit maximum traction force to a first set value which is set based on a static friction coefficient μ and vehicle weight when specifying that a bucketis pushed into a natural ground; and increase the maximum traction force from the first set value when specifying that excavation of the natural groundis started.