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61. 发明专利

JPH11124292A SAFETY ROPE SUPPORTING STANCHION FOR CRANE 失效
公开(公告)号：JPH11124292A
公开(公告)日：1999-05-11
申请号：JP30660097
申请日：1997-10-21
申请人： SUMITOMO CONSTR MACH
发明人： NAKAJIMA YOSHIHIRO
IPC分类号： B66C13/00
摘要： PROBLEM TO BE SOLVED: To stretch a safety rope on the locking parts of respective safety rope supporting stanchions, after bridging the safety rope once to another side end from one side end of a latice jib. SOLUTION: Locking parts, composed of a first and second hooking parts 22a and 22b, are formed on the main body head part of a stanchion 21. The tip parts of a first and second hooking parts 22a and 22b are opened respectively to the right side of a figure and the left side which is an opposite side of the hooking part 22a; and a wheel 22d is formed between these hooking parts 22a and 22b seeing from the side part. A nylon rope 16 is bent along the extending directions of the respective hooking parts 22a and 22b to be passed between the roots of the respective hooking parts 22a and 22b. The successive stretching of the nylon rope 16 makes the rope 16 be passed into the portion of the wheel 22d from the opened portions of the respective hooking parts 22a and 22b to be hooked to the locking parts.

62. 发明专利

JPH11106185A ABNORMAL AT-REST POSTURE ALARM DEVICE FOR TOWER CRANE 失效
公开(公告)号：JPH11106185A
公开(公告)日：1999-04-20
申请号：JP27674397
申请日：1997-10-09
申请人： SUMITOMO CONSTR MACH
发明人： KAMIYA TADATOSHI
IPC分类号： B66C23/88
摘要： PROBLEM TO BE SOLVED: To give an alarm to an operator when the at-rest posture is in an abnormal condition by judging whether or not the posture of a tower attachment is normal when the work of a tower crane is stopped. SOLUTION: An angle sensor 18 is provided on a base end part of a tower 11, and an angle sensor 19 is provided on a base end part of a jib 11. A jib catch sensor 20 is provided on a tip part of the tower 11. A controller 25 judges the posture of a tower attachment based on the detected signals ΘT, ΘJ and SC of the sensor, and compares the posture with the predetermined at-rest posture. When the posture of the tower attachment is deviated from the allowable range of the prescribed at-rest posture, the controller 25 judges that the at-rest posture is abnormal, and operates an alarm device 26.

63. 发明专利

JPH1182010A EXHAUST SYSTEM FOR CONSTRUCTION MACHINE 失效
公开(公告)号：JPH1182010A
公开(公告)日：1999-03-26
申请号：JP23802397
申请日：1997-09-03
申请人： SUMITOMO CONSTR MACH
发明人： AOKI YOSHINORI , TATSUMI MASAAKI
IPC分类号： E02F9/00 , B60K13/04 , F01N3/02 , F01N13/20 , F01N7/20
摘要： PROBLEM TO BE SOLVED: To prevent occurrence of a burn on an operator and deterioration of operation environment by discharging exhaust gas from an engine of a construction machine to the rear side thereof, with low temperature and low speed. SOLUTION: A plurality of partition plates 36 are arranged in parallel on an inner wall surface 34a of an exhaust pipe 34 of an exhaust system 28 connected to an engine mounted on a construction machine. A plurality of chambers 37 are formed by the partition plates 36 and the inner wall surface 34a of the exhaust pipe 34. A number of vent holes 36a are bored on the partition plates 36. Exhaust gas from the engine is discharged through the exhaust pipe 34 and a counter weight 29, to the rear side of the counter weight 29. At this time, the exhaust gas is discharged to atmosphere with low speed and temperature, to maintain operation environment and prevent occurrence of danger caused by the exhaust gas.

64. 发明专利

JPH1181310A MAIN BODY SUPPORTING CONSTRUCTION IN LEADER TYPE PILE DRIVER 失效
公开(公告)号：JPH1181310A
公开(公告)日：1999-03-26
申请号：JP23950897
申请日：1997-09-04
申请人： SUMITOMO CONSTR MACH
发明人： KITADA YOSHIHIRO , NAKASHITA KOICHI
IPC分类号： E02D7/16 , E21B19/00 , E21B19/24
摘要： PROBLEM TO BE SOLVED: To facilitate a repair work, and reduce repair cost by attaching a liner made of a material softer than a leader guide to a slide surface of the leader guide of a guide gib provided at excavating equipment. SOLUTION: Excavating equipment 4 has a pair of leader guide gibs 3 which are guided by a leader guide 2 and lift and descends. At a portion where the leader guide 2 slides, a replaceable half moon-shaped liner 5 is attached. The liner 5 is made of a material softer than that of the leader guide 2 and suppresses the wear of the leader guide to a minimum, and only the liner at the side of guide gib 3 is worn. By doing this, even though a slide wear occurs between the leader guide 2 and the guide gib 3, the leader guide 2 can be protected and also for repair, only the liner 5 is removed and replaced thereby making the repairing easier and reducing the repair cost.

65. 发明专利

JPH1160165A REAR POST PENDANT ROPE CONNECTION DEVICE OF CRANE AND REAR POST PENDANT PORE CONNECTION METHOD THEREFOR 失效
公开(公告)号：JPH1160165A
公开(公告)日：1999-03-02
申请号：JP21785497
申请日：1997-08-12
申请人： SUMITOMO CONSTR MACH
发明人： TSUBOI TAKAYUKI
IPC分类号： B66C23/36 , B66C23/26 , B66C23/88
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive connection device which can connect a rear post pendant rope between a tower boom fallen and turned in a horizontal condition and a rear post safely and easily. SOLUTION: A rear post pendant rope is connected to a rear post 12 and a connection bar 30 to lock a winch rope 40 on the connection bar 30. The rear post is pulled up by a winch to wind up winch rope 40 so as to tighten the rear post pendant rope. The winch rope 40 and the rear post pendant rope are arranged substantially in a straight line due to the guide of a guide sheave 25 fixed on right and left mounting lugs 18, 18 of a tower boom 2. When the winch rope 40 is further wound up in this condition, a connection link 35 of the connection bar 30 moves to the mounting lugs 18, and a pin hole of the connection link 35 agrees with pin holes of the mounting lugs 18 so that a connect pin can be easily inserted into both pin holes. After that, the winch rope 40 is loosened and removed from the connection bar 30, thereby ending the connection work of the rear post pendant rope.

66. 发明专利

JPH1135286A CRAWLER CRAIN 失效
公开(公告)号：JPH1135286A
公开(公告)日：1999-02-09
申请号：JP19583797
申请日：1997-07-22
申请人： SUMITOMO CONSTR MACH
发明人： OHASHI HIROSHI
IPC分类号： B66C23/36 , B66C23/82
摘要： PROBLEM TO BE SOLVED: To improve the hanging up property at a low cost, by taking a normal crawler crain as a base. SOLUTION: A bracket 21 is projected at the front part of an upper rotary body 2, and a carriage 22 is installed to the front end of the bracket 21, and at the same time, the second boom 22 is installed to the carriage 22. A main boom 3 is used as a mast boom by inclining to the rear side, a hook rope 10 is locked to the tip of the second boom 23 through a pendant 24, and it operates as a boom elevation rope to the second boom 23.

67. 发明专利

JPH10330085A PIN COUPLING DEVICE FOR CONSTRUCTION MACHINE 失效
公开(公告)号：JPH10330085A
公开(公告)日：1998-12-15
申请号：JP14126297
申请日：1997-05-30
申请人： SUMITOMO CONSTR MACH
发明人： OHASHI HIROSHI , KAHARA AKIRA
IPC分类号： B66C23/36 , B66C23/74
摘要： PROBLEM TO BE SOLVED: To provide a pin coupling device of construction machine with which the size is put within the limit value of vehicle width to enable running on a public road without requiring disassembly of the pin coupling device after separation of a body frame. SOLUTION: A lug 5 on one frame is overlapped on a lug 6 on another frame so that a pin case is fastened. The first detention part 16 and second detention part 26 are furnished on the rib 13 of the pin case. At execution of works, a bracket of a hydraulic cylinder 7 is secured to the first detention part 16, and a rod is elongated so that a coupling pin 8 is allowed to penetrate the two lug holes 5a and 6a, and thereby two lugs are put in pin coupled condition. When machine body is transported, the rod is contracted and the coupling pin 8 is drawn off from lug hole 6a, and after separation of two frames, the rod is elongated so that the pin 8 is allowed to penetrate the lug hole 5a, and an end plate 20 is fastened. In this condition, the bracket of the hydraulic cylinder 7 is set off from the first detention part 16, and the rod is contracted, and the bracket is secured to the second detention part 26.

68. 发明专利

JPH10325157A LIFTING MAGNET 失效
公开(公告)号：JPH10325157A
公开(公告)日：1998-12-08
申请号：JP13552397
申请日：1997-05-26
申请人： SUMITOMO CONSTR MACH , YOSHIKAWA KOGYO KK
发明人： SUZUKI YOSHIKAZU , KAWAMOTO MASAHARU , KOMAI MASAAKI
IPC分类号： E02F3/36 , H01F7/20
摘要： PROBLEM TO BE SOLVED: To change the direction of materials simply and quickly so as to improve workability, when materials such as slab is to be attracted by a lifting magnet and unloaded in sequence into a state of forming a line. SOLUTION: A bracket 14 of a lifting magnet 10 is connected to the extreme end part of an arm 5. A rotation device 16 is provided between a magnet part 15 attracting materials and the bracket 14. In this rotation device 16, a ring gear 18 is carvedly provided on the inner circumference of a ball race 17 fitted to the underside of the bracket 14, the underside of the ring gear 18 is fixedly secured on the upper face side of the magnet part 15, and the pinion gear 20 of a motor 19 fitted to the bracket 14 is engaged with the ring gear 18. By driving the motor 19, the pinion gear 20 rotates, the ring gear 18 rotates along the circumference of the ball race 17, and the magnet part 15 rotates together with the ring gear 18. Consequently, under the condition of fixing the direction of the boom, the direction of the materials attracted to the magnet part 15 can be changed.

69. 发明专利

JPH10310373A CONTROL DEVICE FOR COMMON TO CRANE AND HYDRAULIC SHOVEL 失效
公开(公告)号：JPH10310373A
公开(公告)日：1998-11-24
申请号：JP12046197
申请日：1997-05-12
申请人： SUMITOMO CONSTR MACH
发明人： OIKAWA TATSUMI , KAWAMOTO MASAHARU , SUZUKI YOSHIKAZU
IPC分类号： E02F9/22 , B66C23/36 , B66C23/88 , B66C23/90
摘要： PROBLEM TO BE SOLVED: To dispense with the rod side pressure sensor of a boom cylinder and reduce the cost by forming a measuring means obtaining the weight of a suspended load with an arithmetic means calculating the weight of the suspended load from the detected value of the bottom side oil pressure of the boom cylinder and the measured values of the rotation angles of an arm and a boom. SOLUTION: When a selecting switch is selected to the crane side and a selector switch 13 is turned on, a selector valve 12 is excited, and a bucket directional control valve 13 is locked on the closure side. When an operation lever is operated to the boom ascent side, pressure oil flows from the ascent side port 5a of a boom remote control valve 5, and a boom direction selector valve 4 is switched to the ascent side. Pressure oil is fed to a boom cylinder 10 from a hydraulic pump 2a via the boom directional control valve 4 and a quick drop preventing circuit 8. Detection signals of a pressure sensor 33 detecting the bottom side hydraulic pressure of the boom cylinder 10 and sensors measuring the rotation angles of an arm and a boom are inputted to an arithmetic device, and the weight of a suspended load is calculated from both data.

70. 发明专利

JPH10310365A HYDRAULIC CONTROL CIRCUIT COMMON TO CRANE AND HYDRAULIC SHOVEL 失效
公开(公告)号：JPH10310365A
公开(公告)日：1998-11-24
申请号：JP12046097
申请日：1997-05-12
申请人： SUMITOMO CONSTR MACH
发明人： OIKAWA TATSUMI , KAWAMOTO MASAHARU , SUZUKI YOSHIKAZU
IPC分类号： E02F9/22 , B66C13/12 , B66C13/20 , B66C23/36
摘要： PROBLEM TO BE SOLVED: To secure proper operating characteristics respectively by connecting the descent side output port of a boom remote control valve to a boom quick descent preventing valve via the first cushion valve, and connecting the closure side output port of an arm remote control valve to an arm quick descent preventing valve via the second cushion valve. SOLUTION: When an operation lever is operated to lower a boom, the pressure oil from a pilot hydraulic pump 3 is fed to a branch point 35 from the boom descent side port 14b of a boom remote control valve 14. A part of the pilot pressure oil flows into the pilot port of a boom directional control valve 9 via a cushion valve 38. The remainder is fed to the pilot port of a boom sudden descent preventing valve 12 through a cushion valve 37, and a selector valve 122 is switched to the communication side. When a boom descent action is taken by the shrinking motion of a boom cylinder 11, the boom sudden descent preventing valve 12 is mitigated from being quickly closed or opened, and the boom descent action is smoothly made.

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