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 (HITACHI LTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
一野瀬 昌則 (〒34 茨城県ひたちなか市堀口８３２番地２ 株式会社日立製作所 機械研究所内 Ibaraki, 〒3120034, JP)
YASUDA Tomohiko (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
一野瀬 昌則 (〒34 茨城県ひたちなか市堀口８３２番地２ 株式会社日立製作所 機械研究所内 Ibaraki, 〒3120034, JP)
YASUDA Tomohiko (Tsuchiura Works, Intellectual Property Department, 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
Application Number:
JP2010/072133
Publication Date:
June 16, 2011
Filing Date:
December 09, 2010
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY CO., LTD. (5-1 Koraku 2-chome, Bunkyo-ku Tokyo, 63, 〒1128563, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
ICHINOSE Masanori (HITACHI LTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
一野瀬 昌則 (〒34 茨城県ひたちなか市堀口８３２番地２ 株式会社日立製作所 機械研究所内 Ibaraki, 〒3120034, JP)
日立建機株式会社 (〒63 東京都文京区後楽二丁目５番１号 Tokyo, 〒1128563, JP)
ICHINOSE Masanori (HITACHI LTD., 832-2, Horiguchi, Hitachinaka-sh, Ibaraki 34, 〒3120034, JP)
一野瀬 昌則 (〒34 茨城県ひたちなか市堀口８３２番地２ 株式会社日立製作所 機械研究所内 Ibaraki, 〒3120034, JP)
International Classes:
B60P1/04
Attorney, Agent or Firm:
KASUGA Yuzuru (Torii-nihonbashi Bldg, 4-1 Nihonbashi-honcho 3-chome, Chuo-k, Tokyo 23, 〒1030023, JP)