Invention Grant
- Patent Title: Hydraulic drive apparatus for industrial vehicle
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Application No.: US16831089Application Date: 2020-03-26
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Publication No.: US11053959B2Publication Date: 2021-07-06
- Inventor: Takanori Kanna
- Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
- Applicant Address: JP Kariya
- Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
- Current Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
- Current Assignee Address: JP Kariya
- Agency: Sughrue Mion, PLLC
- Priority: JPJP2019-071812 20190404
- Main IPC: F15B15/02
- IPC: F15B15/02 ; F15B11/04 ; B66F9/22

Abstract:
A hydraulic drive apparatus for an industrial vehicle includes a cargo-handling device, a hydraulic control device, a cargo-handling-device operating member, and a switching member. When a first operation of the cargo-handling-device operating member is performed, an open-close valve is opened to hydraulic oil flowing in a first direction to cause the hydraulic oil to bypass a throttle. When a second operation of the cargo-handling-device operating member is performed while the switching member is in a first state, the open-close valve is closed against hydraulic oil flowing in a second direction to cause the hydraulic oil to flow through the throttle. The throttle provided in a flow route of the hydraulic oil between a main control valve and the cargo-handling device reduces a flow rate of the hydraulic oil to restrict cargo handling.
Public/Granted literature
- US20200318659A1 HYDRAULIC DRIVE APPARATUS FOR INDUSTRIAL VEHICLE Public/Granted day:2020-10-08
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