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1. 发明专利

JPH09217584A PIPE JOINT FOR PIPE ROOF, WATERTIGHT PACKING OF SHAFT, AND WATER CUTOFF METHOD IN PIPE ROOF CONSTRUCTION METHOD 失效
公开(公告)号：JPH09217584A
公开(公告)日：1997-08-19
申请号：JP32554096
申请日：1996-12-05
申请人： KOMATSU MFG CO LTD
发明人： HORI KENJI , YAMAZAKI TOSHIHIRO
IPC分类号： E21D9/04 , E21D9/06 , E21D11/38
摘要： PROBLEM TO BE SOLVED: To provide a pipe joint and the watertight packing of a shaft which are excellent in the property of cutting off water and easy to manufacture and to surely prevent ground water from flowing out to the shaft. SOLUTION: A joint piece 3 provided longitudinally along the outer peripheral surface of a pipe 1 for a pipe roof includes a meshing part 4 of hook-shaped cross section, having a locking groove 4a inside, and a locking part 5 provided opposite to the meshing part 4. When the meshing part 4 of one joint piece 3 is engaged in the locking groove 4a of the other joint piece 3, the back of the meshing part 4 is locked in the locking part 5 of the other joint piece 3, whereby the pair of joint pieces 3 mesh with each other.

2. 发明专利

JPH09119292A BEDROCK EXCAVATOR 失效
公开(公告)号：JPH09119292A
公开(公告)日：1997-05-06
申请号：JP27930295
申请日：1995-10-26
申请人： KOMATSU MFG CO LTD
发明人： TOMIYAMA YASUSHIGE , YAMAZAKI TOSHIHIRO
IPC分类号： E21D11/00
摘要： PROBLEM TO BE SOLVED: To mount and demount a tail seal easily by installing the tail seal onto the rear end face of a tail plate through a sealing plate detachably mounted on the tail plate. SOLUTION: A mounting plate 2, in which a base end section has approximately the same thickness as a tail plate 1, is fixed onto the rear end face of the tail plate 1 by welding. A sealing plate 4, in which maximum thickness is made approximately the same as the mounting plate 2, is fastened on the front end side of the mounting plate 2 by a bolt 3, and a tail seal 5 is fixed on the internal surface side of the stepped section of the sealing plate 4 by welding so as to be projected towards the rear on the inside. The tail seal 5 can be mounted and demounted easily to and from the tail plate 1 in response to the state of the ground because the tail seal 5 is set up onto the rear end face of the tail plate 1 through the sealing plate 4 detachably fitted to the tail plate 1, not the interior wall surface of the tail plate 1.

3. 发明专利

JPH0932462A CONSTRUCTION METHOD FOR EXCAVATING INCLINED SHAFT 失效
公开(公告)号：JPH0932462A
公开(公告)日：1997-02-04
申请号：JP18041395
申请日：1995-07-17
申请人： KOMATSU MFG CO LTD
发明人： YAMAZAKI TOSHIHIRO
IPC分类号： E21D9/02 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To perform an excavating operation, without excavating a pilot hole, while discharging water that springs out inside a tunnel. SOLUTION: Drain holes 3, 3 leading to a lower tunnel shaft 5 are first formed. Then, as springing water is discharged from the drain holes 3, 3, cutting- down excavation on an entire cross section is performed while sludge is discharged behind a tunnel excavator 10 via a rotary conduit pipe 20, a conduit pipe, a rotary feeder 22, and a railed belt conveyor 26.

4. 发明专利

JPH08291696A TUNNEL EXCAVATOR 失效
公开(公告)号：JPH08291696A
公开(公告)日：1996-11-05
申请号：JP9562395
申请日：1995-04-20
申请人： KOMATSU MFG CO LTD
发明人： TERADA SHINICHI , MINAMI YOSHITO , YAMAZAKI TOSHIHIRO
IPC分类号： E21D9/08
摘要： PURPOSE: To prevent dusts produced at an excavation from penetrating into a body of an excavator by providing a dust shielding plate near the rear of a cutter head. CONSTITUTION: A dust shielding plate is connected by bolts 26 to the outer periphery 23 of a shielding body 22, on a ring-shaped base body 20 of which a plurality of ribs 21 are provided in radial directions, in such a manner that a fan-shaped rubber board 24 is pressed by a large number of rubber pressers 25, and the inner periphery of the body 22 is attached to a fixing part 18 of a cutter head support 6. Next the board 24 is mounted to the body 22 so as to contact a tunnel pit wall 40 so that the board 24 extends in a recess 41 of the wall 40 as shown by an imaginary line and is bent in a projection 42, whereby the board 24 is always in close contact with the wall 40 to shield passage of dusts so that dusts produced by excavation by a cutter head 7 can be prevented from penetrating into a main body of a tunnel excavator.

5. 发明专利

JPH08291690A TUNNEL EXCAVATOR 失效
公开(公告)号：JPH08291690A
公开(公告)日：1996-11-05
申请号：JP9562595
申请日：1995-04-20
申请人： KOMATSU MFG CO LTD
发明人： ISHIDA ZENICHI , TERADA SHINICHI , YAMAZAKI TOSHIHIRO
IPC分类号： E21D9/00 , E21D9/08
摘要： PURPOSE: To reduce labor and cost of a drilling work for a lock bolt hole. CONSTITUTION: A lock bolt hole drilling device 21 is provided, through a bracket 20, under a shielding plate 19 at the rear of a tunnel excavator 1 which has a cutter head 7 before a main body of the excavator. By turning and swinging the device 21, a lock bolt hole is drilled at any position of wall of a reaming pit 3.

6. 发明专利

JPH08291689A ROOF SUPPORT SHOE OF TUNNEL EXCAVATOR 失效
公开(公告)号：JPH08291689A
公开(公告)日：1996-11-05
申请号：JP9562195
申请日：1995-04-20
申请人： KOMATSU MFG CO LTD
发明人： TERADA SHINICHI , MINAMI YOSHITO , YAMAZAKI TOSHIHIRO
IPC分类号： E21D9/00
摘要： PURPOSE: To easily observe a natural ground and ensure safety by adjusting the magnitude of a region of a roof support in contact with the excavation surface of a tunnel. CONSTITUTION: A roof support 1 is constituted of a body part 3 supported by a pair of parallel links 11 and two jacks 12, 12, and two extended parts 4, 4 provided on both sides of the part 3. Next, the part 3 has an arcuate, curved portion 5 as a main body, and a rib 6 is provided along the arcuate rear side of the portion 5 and a reinforcing rib 7 is provided on each side end of the portion 5, while in each of the parts 4, a rib 6a and a reinforcing rib 7a are provided on the rear side of a curved portion 5a in communication with the portion 5 in a similar manner. And a flange 8 and a flange 8a are provided at the end of the part 3 and the part 4, respectively, to connect both the flanges by bolts 10 thereby to connect the part 3 with the parts 4. And when a natural ground is in a good state, the parts 4, 4 are removed to sufficiently observe the ground and when the ground is in a bad state, the parts 4, 4 are attached to ensure safety.

7. 发明专利

JPH08260888A TUNNEL EXCAVATOR 失效
公开(公告)号：JPH08260888A
公开(公告)日：1996-10-08
申请号：JP6311295
申请日：1995-03-22
申请人： KOMATSU MFG CO LTD
发明人： TERADA SHINICHI , MINAMI YOSHITO , YAMAZAKI TOSHIHIRO
IPC分类号： E21D9/00 , E21D9/06 , E21D9/08 , E21D9/087 , E21D9/10
摘要： PURPOSE: To discharge excavated muck to be produced in the increase of the diameter of a pilot pit without stagnation. CONSTITUTION: A nose gripper is mounted at the front end of a main beam extended along each pit wall of a pilot pit 2 and a milling pit 3, in which a diameter is increased. A main frame borne to the main beam in a longitudinal slidable manner is installed on the milling pit 3 side of the nose gripper. A conical cutter head 7 is set up on the front side of the main frame. A chamfering section 15 is fitted on the inner circumferential side of the cutter head 71, and excavated-muck discharging ditches 14, in which depth is deepened towards the inner circumferential side from the outer circumferential side, are formed radially.

8. 发明专利

JPH08135395A SEGMENT ASSEMBLING DEVICE OF SHIELD MACHINE 失效
公开(公告)号：JPH08135395A
公开(公告)日：1996-05-28
申请号：JP29586694
申请日：1994-11-04
申请人： KOMATSU MFG CO LTD
发明人： ICHIMURA YASUO , MIURA KEIJI , YAMAZAKI TOSHIHIRO
IPC分类号： E21D11/40
摘要： PURPOSE: To improve the workability by increasing the effective space at the center of a shield machine having a segment assembling device. CONSTITUTION: An erector device 10 and a segment pressing device 30 are installed to a rotary ring 4 installed to a shield machine main body. The erector device 10 is composed of a boom 13; a boom jack arm 16; an arm jack erector head 20; and a rolling jack 18; and the erector head 20 is made possible to move vertically, to rotate minutely, and to carry out the rolling. The segment pressing device 30 is composed of a link 32 and a jack 36, and a segment 40 is pressed by fluctuating the link 32. Since the segment pressing device 30 is in the rotating part of the erector device 10, the effective space at the center is increased.

9. 发明专利

JPH08135374A ROLLING CORRECTING DEVICE AND ROLLING CORRECTING METHOD OF SHIELD MACHINE 失效
公开(公告)号：JPH08135374A
公开(公告)日：1996-05-28
申请号：JP29586594
申请日：1994-11-04
申请人： KOMATSU MFG CO LTD
发明人： YAMAZAKI TOSHIHIRO , MIURA KEIJI , NIWA MAKOTO
IPC分类号： E21D9/093 , E21D9/06 , E21D9/08
摘要： PURPOSE: To correct a rolling owing to an excavation reaction of a cutter, by holding a shield jack tiltable, and installing a tilting center to a ring garter by a holding means to form the tilting center, and a driving means to tilt. CONSTITUTION: By contracting a rolling correcting jack 13, a shield jack 5 is tilted counterclockwise around the tilting center O. As a result, the reaction F of a thrust of the shield jack 5 received from a segment is to be operated to a ring garter 11b through a holding means 6. In this case, the rolling of the skin plate of a two-circle shield machine is corrected by a component force F1 to generate the rolling correction torque M1 of the above reaction F. On the other hand, by extending the rolling correcting jack 13, the shield jack 5 is tilted clockwase around the tilting center O of the holding means 6. As a result, a rolling correcting torque M2 is generated, so as to correct the rolling of the skin plate of the two-circle shield machine.

10. 发明专利

JPH06257394A FORCE FEED PUMP FOR EARTH AND SAND 失效
公开(公告)号：JPH06257394A
公开(公告)日：1994-09-13
申请号：JP6914293
申请日：1993-03-05
申请人： KOMATSU MFG CO LTD
发明人： MIZUTANI TOSHIYUKI , OSADA SEIJI , YAMAZAKI TOSHIHIRO
IPC分类号： E21D9/12 , F04B43/12
摘要： PURPOSE:To efficiently transport earth and sand without injuring a pump tube even if the earth and sand is mixed with cobble stones and the like. CONSTITUTION:In an earth and sand force-feed pump to forcedly feed earth and sand in a pump tube 14, by pressing the pump tube 14 from the suction side by means of rollers 12 rotated by an endless track chain 7, on the pump tube 14 laid in the transporting direction of the earth and sand, the roller 12 is provided with an elastic body 12b on the circumferential face and formed into a nearly drum shape. The track chain 7 is provided with the rollers of three pieces or more, and a cushioning float-up mechanism 20 to float up the rollers 12 in the case of biting-in of cobble stones and the like is provided on the suction side end part of a transmitting frame 3 supporting the track chain 7. Earth and sand can be efficiently forcedly fed by means of the rollers of above three pieces, and even if cobbles are bitten in, the pump tube 14 can be prevented from being broken by means of the cushioning float-up mechanism 20.

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