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    • 1. 发明专利
    • SHIELD EXCAVATOR
    • JPH06294284A
    • 1994-10-21
    • JP10502693
    • 1993-04-06
    • TEITO KOSOKUDO KOTSU EIDANMETRO KAIHATSU KKKAWASAKI HEAVY IND LTD
    • INOSE JIROSUKEGAWA TEIWATANABE TAKESHIORIIDE KENICHI
    • E21D9/06
    • PURPOSE:To increase the usefulness of a shield excavator as to coupling strength and the ease with which it is installed and removed by connecting an auxiliary excavator to the side portion of a main shield machine by means of bolts, etc., for excavating portions around the main shield machine, and providing a recessed portion having outwardly tapered opposite surfaces on the circumferential wall portion of the main shield machine, and providing the auxiliary excavator with a projecting portion. CONSTITUTION:A recessed portion 16 and a projecting portion 26 are provided, respectively, on the circumferential wall portion of a main shield machine 10 and on the side portion of an auxiliary excavator 20, and are fitted and connected together by means of bolts. The recessed portion 16 and the projecting portion 26 are therefore acted upon by a force in a specific direction so that no shearing force is applied to the bolts. The recessed portion 16 is formed into tapered opposite surfaces 16a each of which opens outwards and a bottom surface 16b. The projecting portion 26 is formed with tapered opposite surfaces 26a which make close contact with the opposite surfaces 16a and a projecting end surface 26b, both of which are joined to the shield 22 of the auxiliary excavator 20. Thus the need for adjusting the connection of the shield machine 10 and the auxiliary excavator 20 in their crossing direction is eliminated. Sufficient coupling strength can then be provided without using numerous strong bolts.
    • 7. 发明专利
    • SHIELD MACHINE
    • JPH07324589A
    • 1995-12-12
    • JP13972794
    • 1994-05-31
    • TEITO KOSOKUDO KOTSU EIDAN
    • INOSE JIROSUKEGAWA TEINAKAJIMA MAKOTOFUJIKI IKUONUMAZAWA KENJIRO
    • E21D9/06E21D9/08E21D9/087
    • PURPOSE:To drill holes in an obstacle by a shield machine itself for its removal by setting the top end of a slide hood movably in longitudinal direction, oscillating the slide hood in circumferential direction of a cutter head, and cutting and eliminating as it is clamped. CONSTITUTION:A cutter head 1 is attached at the top end of a device main body A. Also a slide hood 2 to the top of which a cutter bit 2a is attached is installed on the upper periphery surface of the device main body A including the cutter head 1. The slide hood 2 is forced out forward by a slide jack 3. A hood longitudinal slide hole 4 and a hood oscillation hole 5 are drilled in the device main body A according to the movement of the slide jack 3. Then, when the cutter head 1 is rotated in forward direction, soil is dug, and encountered with an obstacle, a fixed bit 11 is bitten into an object to be cut and broken. Under this condition, a rotation detector for the cutter head 1 detects a variation in rotating torque, and stops the rotation of the cutter head 1. Lastly a movable bit 10 opposed to the fixed bit 11 bitten into the object to be broken is driven to cut or break the object to be cut and broken.