JACK DEVICE AND WORK MACHINE EQUIPPED WITH JACK DEVICE

Title:

JACK DEVICE AND WORK MACHINE EQUIPPED WITH JACK DEVICE

Document Type and Number:

WIPO Patent Application WO/2022/054581

Kind Code:

A1

Abstract:

Provided is a jack device (20) which can be easily stored in a storage space (S) of a machine body (13) of a work machine. The jack device (20) comprises: an arm (30); a cylinder (40); a float (50); and a pin (61). The arm (30) is rotatably connected to the machine body (13). The cylinder (40) is connected to the arm (30) rotatably about a cylinder rotary axis (40a) so as to have an upright attitude and a leaning attitude. The pin (61) rotatably connects the float (50) to a rod (43) of the cylinder (40). The jack device (20) is stored in a state where the cylinder (40) is contracted and is in the leaning attitude and the bottom surface (51b) of the float (50) is along a part (13s) of the machine body (13) facing the storage space (S).

Inventors:

ARITA RYUICHI
KISHI TAKURO

Application Number:

PCT/JP2021/031186

Publication Date:

March 17, 2022

Filing Date:

August 25, 2021

Export Citation:

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Assignee:

KOBELCO CONSTR MACH CO LTD (JP)

International Classes:

B66C23/78; B60S9/12

Foreign References:

JPH04169364A	1992-06-17
JP2018177432A	2018-11-15
JP2009120297A	2009-06-04
JP2017141075A	2017-08-17
JP2018103758A	2018-07-05
JP2019014573A	2019-01-31
EP1209118A1	2002-05-29
JP2018176907A	2018-11-15
JP2018177432A	2018-11-15

Other References: