Hydraulische Steuerungsvorrichtung eines Gabelstaplers

Details

Veröffentlichungs-Nr.

EP3078624

Aktenzeichen

EP16163797

Anmeldetag

5. April 2016

Veröffentlichung

29. August 2018

Erteilung

29. August 2018

Rechtsraum

EP

IPC

B66F9/22F15B11/16

Abstract

A hydraulic control device of a forklift truck includes a first hydraulic cylinder [14], a first instructing member [22], a second hydraulic cylinder [19], a second instructing member [23], a hydraulic pump [30], an electric motor [31], a first oil passage [K1], a lowering control valve [32], a second oil passage [K2] that is branched from the first oil passage [K1] at a junction [Q], a flow control valve [37], a first pilot passage [51] through which pressure in the first oil passage [K1] at a position between the first hydraulic cylinder [14] and the lowering control valve [32] is applied to a first accommodating chamber (43) of the flow control valve [37] as the pressure [P1] upstream of the lowering control valve [32], and a second pilot passage [52] through which pressure in the first oil passage [K1] at a position between the lowering control valve [32] and the hydraulic pump [30] is applied to a second accommodating chamber (46) of the flow control valve [37] as the pressure downstream [P2] of the lowering control valve [32].

Anmelder

Firma

KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Land

🇯🇵 Japan

Fachgebiete