Hydraulic shovel concurrently used for crane operations

Details Hydraulic shovel concurrently used for crane operations Hydraulic shovel concurrently used for crane operations

2005-10-11

2005-10-11

Nguyen, Tai T. (Department: 2632)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S665000, C340S684000, C340S870030, C340S691100, C340S691400, C340S691600

Reexamination Certificate

active

06954150

ABSTRACT:
It is a subject of the present invention to provide a hydraulic shovel concurrently used for crane operations in which an operator may immediately be ascertained of conditions during crane operations as well as dangerous conditions occurring on the implement or the vehicle body so that operations may be performed in a stable and rapid manner, this being achieved by a hydraulic shovel concurrently used for crane operations which comprises an implement including a boom, an arm, a bucket and a hook for enabling crane operations, which further comprises a monitor device including a monitor screen, wherein a parameter display portion for displaying parameters related to load factors of safe-working load, an engine condition display portion for displaying engine conditions and an alarm information display portion for displaying alarm information are provided on the monitor screen during crane operations, wherein a plurality of display items of the alarm information display portion may be sequentially switched and displayed, and wherein the parameter display portion is turned into an alarm color when the load factor for safe-working load is within a dangerous area.

REFERENCES:
patent: 4368824 (1983-01-01), Thomasson
patent: 4532595 (1985-07-01), Wilhelm
patent: 4660729 (1987-04-01), Carbert
patent: 4833615 (1989-05-01), Bitner et al.
patent: 5081838 (1992-01-01), Miyaoka et al.
patent: 5824965 (1998-10-01), Fujii et al.
patent: 6334085 (2001-12-01), Kawamura et al.
patent: 6492901 (2002-12-01), Ridolfo

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