Title:
DUMP TRUCK TIP-OVER SAFETY DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/071112
Kind Code:
A1
Abstract:
A tip-over safety device, for a dump truck comprising a bed (3) and hoist cylinders (5), comprises a loaded weight estimation unit (32) that estimates the load weight upon the bed; a chassis moment of rotation computation unit (33) that computes the moment of rotation of the chassis (Mb) that arises from the movement of the load when the load is ejected; a reference moment computation unit (34) that assigns moment of rotation that is less than or equal to the tip-over threshold moment (MI), which is the smallest moment of rotation required to lift the front wheels (1) off the ground, to the reference moment (Ms); a determination unit (35) that determines whether the moment of rotation of the chassis (Mb) exceeds the reference moment (Ms); and a display device (37) that notifies the driver that there is a strong probability of a tip-over, if it is determined that the moment of rotation of the chassis (Mb) has exceeded the reference moment (Ms). It is thus possible to avoid dump trucks tipping over as a result of dumping their loads all at once.
Inventors:
ICHINOSE MASANORI (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
Application Number:
PCT/JP2010/072133
Publication Date:
June 16, 2011
Filing Date:
December 09, 2010
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
ICHINOSE MASANORI (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
ICHINOSE MASANORI (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
International Classes:
B60P1/04
Foreign References:
| JP2002307996A | 2002-10-23 | |||
| JPS59135248U | 1984-09-10 | |||
| JPS6243887B2 | 1987-09-17 | |||
| JPS6248633B2 | 1987-10-14 | |||
| JPS6398235U | 1988-06-25 | |||
| JP2002307996A | 2002-10-23 |
Other References:
See also references of EP 2511131A4
Attorney, Agent or Firm:
KASUGA Yuzuru (JP)
Kasuga 讓 (JP)
Kasuga 讓 (JP)
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