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    • 10. 发明专利
    • Safety device for attachment fastening device of power shovel
    • 用于连接电力手机装置的安全装置
    • JP2007009606A
    • 2007-01-18
    • JP2005194088
    • 2005-07-01
    • Muroto Tekkosho:Kk株式会社室戸鉄工所
    • MORIUCHI TAKASHI
    • E02F3/40E02F9/24
    • E02F3/3618E02F3/3663
    • PROBLEM TO BE SOLVED: To prevent an attachment from dropping from the leading end of the arm of a power shovel even if negligence and erroneous operation occur in combination in a safety device for a device for fastening the attachment such as a bucket to the leading end of the arm of a power shovel.
      SOLUTION: In this safety device for the device for fastening the attachment such as the bucket to the leading end of the arm of the power shovel, mounting pins 12 and 13 provided for the attachment 14 are inserted into a pair of receiving recess portions which are arranged such that their openings face each other or their backs face each other and this inserted condition is maintained by hydraulic power. The fastening device includes: engagement metal fittings 18 and 19 retractably attached in the vicinity of the receiving recess portions and having projections 16 and 17 that are projectable into the openings of the recess portions; and lock members 22 and 23 for engaging the engagement metal fittings, with their projections projecting into the openings. The safety device has sensors 25 and 26 for detecting mounting of the lock members; and inhibiting means 40 for inhibiting the operation of the attachment if the sensors do not detect the lock members.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:即使在用于将诸如铲斗的附件固定的装置的安全装置中组合地发生疏忽和错误的操作来防止附件从铲斗的臂的前端掉落到 动力铲臂的前端。 解决方案:在用于将诸如铲斗的附件固定到铲斗的臂的前端的装置的这种安全装置中,为附件14设置的安装销12和13插入到一对接收凹部 这些部分被布置为使得它们的开口面对彼此或其背面彼此面对,并且该插入状态由液压动力维持。 紧固装置包括:可伸缩地附接在接收凹部的附近的具有能够突出到凹部的开口中的突起16和17的接合金属配件18和19; 以及用于接合接合金属配件的锁定构件22和23,其突起突出到开口中。 安全装置具有用于检测锁定构件的安装的传感器25和26; 以及禁止装置40,用于如果传感器没有检测到锁定构件,则禁止装置的操作。 版权所有(C)2007,JPO&INPIT