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71. 发明专利

JP2002195678A METHOD AND DEVICE FOR PERFORMANCE RECOVERY OF ABSORPTION REFRIGERATOR 失效
公开(公告)号：JP2002195678A
公开(公告)日：2002-07-10
申请号：JP2000393813
申请日：2000-12-25
申请人： HITACHI BUILDING SYS CO LTD
发明人： MACHIZAWA KENJI , ITO MASAHIKO
IPC分类号： F25B15/00 , F25B39/02 , F25B43/00
摘要： PROBLEM TO BE SOLVED: To provide a technology for making performance of a lithium-bromide absorption-refrigerator recover, when a spray nozzle is clogged and the performance is degraded. SOLUTION: From the refrigerator, a refrigerant spray pump (not shown) is demounted, which sucks and discharges liquid refrigerant (water) accumulated in the bottom of an evaporator 4 to a spray nozzle 15, and a cleaning liquid circulating tank 17 is temporarily placed. A cleaning liquid circulation pump 19 is connected to the tank 17 to suck and discharge the cleaning liquid of the tank. An inert gas (e.g., nitrogen gas) is injected in a high vacuum space of the refrigerant circulation system to inhibit inflow of air. The cleaning liquid is sent to the nozzle 15 and sprayed, and at the same time, the liquid refrigerant accumulated in the bottom of the evaporator 4 is conducted to the tank 17, and sucked by the pump 19 for circulation.

72. 发明专利

JP2002181792A DAMAGE DETECTION APPARATUS FOR WIRE ROPE 失效
公开(公告)号：JP2002181792A
公开(公告)日：2002-06-26
申请号：JP2000382067
申请日：2000-12-15
申请人： HITACHI BUILDING SYS CO LTD
发明人： TSUZUKIBASHI EIICHIRO , KOZONO ATSUSHI , GOMI MIZUKI , SAHODA NORIYUKI , NAGANUMA KIYOSHI
IPC分类号： G01B7/34 , B66B5/02 , G01B7/00 , G01N27/83
摘要： PROBLEM TO BE SOLVED: To provide a damage detection apparatus for a wire rope, by which the damage detection accuracy of the wire rope can be enhanced, which can be made small, lightweight and low-cost and which can shorten the operating time. SOLUTION: The damage detection apparatus is provided with a damage detector 15 which comprises ferromagnetic plates 19 used to sandwich the wire rope 1, a permanent magnet 20 interposed and installed between the ferromagnetic plates 19, a magnetic-flux detecting element 14 arranged and installed just above a part on the circumference of the wire rope 1 and guide bodies 24 mounted in both end parts. Thereby, by using the detecting element 14 arranged and installed in such a way that the contact position of the wire rope 1 is used as a damage estimation position, the damage of the wire rope 1 magnetized by the permanent magnet 20 can be detected with satisfactory efficiency and precisely.

73. 发明专利

JP2002179360A GOVERNOR DEVICE FOR ELEVATOR 失效
公开(公告)号：JP2002179360A
公开(公告)日：2002-06-26
申请号：JP2000385582
申请日：2000-12-19
申请人： HITACHI BUILDING SYS CO LTD
发明人： ISHIKAWA ZENJI , INAMI MASARU
IPC分类号： B66B5/04 , B66B7/06
摘要： PROBLEM TO BE SOLVED: To provide a governor device for an elevator capable of making a space around a lower pulley to the minimum. SOLUTION: The governor device comprises an upper pulley 1; a lower pulley 2; a support frame 4; a support arm 5; a governor rope 6; and a governor machine 7. A thickness of the lower pulley 2 is thickened and a tension can be imparted to the governor rope 6 by the lower pulley 2 itself. The lower pulley is a usual one and a weight having the same outline (circular) as that of the lower pulley is concentrically disposed.

74. 发明专利

JP2002179352A CRIME PREVENTION DEVICE FOR ELEVATOR 失效
公开(公告)号：JP2002179352A
公开(公告)日：2002-06-26
申请号：JP2000385576
申请日：2000-12-19
申请人： HITACHI BUILDING SYS CO LTD
发明人： HOSOKAWA KIYOBUMI , HASEGAWA TETSUSHI
IPC分类号： B66B1/14 , B66B3/00 , B66B5/00
摘要： PROBLEM TO BE SOLVED: To provide an excellent crime prevention device for an elevator for preventing a case of theft using an elevator. SOLUTION: The crime prevention device for the elevator is provided with timers 14, 16 for setting a time zone when a floor provided with non-stopping floor set circuits 6-9 is not used; an informing means 20 for carrying out an informing processing to a monitor center in at least one of detections 18, 19 of an invalidity of the non-stopping floor set circuits 6-9 and a car calling operation of the floor at the time zone when these timers 14, 16 are set; and car calling register invalidity means 7b1, 9b1, 18b, 19b, 21b, 22b.

75. 发明专利

JP2002173919A SAFETY FENCE 失效
公开(公告)号：JP2002173919A
公开(公告)日：2002-06-21
申请号：JP2000371687
申请日：2000-12-06
申请人： HITACHI BUILDING SYS CO LTD
发明人： FUJITA KENJI
IPC分类号： E01F13/00 , E01F13/04
摘要： PROBLEM TO BE SOLVED: To provide a safety fence capable of reducing the size, and excellent in carrying performance and storage performance. SOLUTION: The purpose is attained by this safety fence composed of a slender box body 2, plural fixing legs 3, 3A, 3B and 3C extended downward from the slender box body 2, vertically extending/contracting legs 4, 4A, 4B and 4C arranged between these vertically extending/contracting legs, and extending and contracting in the vertical direction, an inspection indicating curtain 7 arranged between these vertically extending/contracting legs, left and right freely pulling-out legs 5 and 5A arranged so as to be freely pulled out of the side of the slender box body, and longitudinally extending/contracting legs 6 and 6A extending and contracting in the longitudinal direction of the slender box body from these left and right extending/contracting legs.

76. 发明专利

JP2002173285A SAFETY DEVICE OF ELEVATOR DOORWAY 失效
公开(公告)号：JP2002173285A
公开(公告)日：2002-06-21
申请号：JP2000376049
申请日：2000-12-11
申请人： HITACHI BUILDING SYS CO LTD , HITACHI LTD
发明人： IZUMI SHIRO , OGASAWARA TAKESHI
IPC分类号： B66B13/26
摘要： PROBLEM TO BE SOLVED: To provide a safety device of an elevator doorway capable of improving site workability at the time of replacing a projector. SOLUTION: It is devised to carry out all renewal work of the projector 4 from the landing side by fastening a nut 3c on a car pillar 3a on the side of a car side plate 8, forming a groove type mounting hole 3d on a car pillar 3b on the landing side and constituting the projector 4 held between the car pillars 3a, 3b to fasten and fix it by a screw member 5 having a knurled head part.

77. 发明专利

JP2002173275A HOME ELEVATOR 失效
公开(公告)号：JP2002173275A
公开(公告)日：2002-06-21
申请号：JP2000376006
申请日：2000-12-11
申请人： HITACHI BUILDING SYS CO LTD
发明人： OSADA SHOICHI
IPC分类号： B66B9/00 , B66B3/02
摘要： PROBLEM TO BE SOLVED: To provide a home elevator simple in constitution and convenient to use. SOLUTION: The home elevator at least furnished with an elevator shaft, a car vertically moving in the elevator shaft and a car call button provided on the side of a landing and to call the car is provided with a display means to display that the car stops at the floor of the landing.

78. 发明专利

JP2002160884A CONTROL SYSTEM FOR PASSENGER CONVEYOR 失效
公开(公告)号：JP2002160884A
公开(公告)日：2002-06-04
申请号：JP2000357893
申请日：2000-11-24
申请人： HITACHI BUILDING SYS CO LTD
发明人： CHIBA TADAAKI , ANDO TAKEYOSHI , MATSUZAKI YOSHIO , SAKAI RYOICHI
IPC分类号： B66B31/00 , B66B25/00 , B66B27/00
摘要： PROBLEM TO BE SOLVED: To provide a control system for a passenger conveyor that can easily produce a passenger number without adversely influencing the flow of passengers. SOLUTION: A passenger number computing means 12 computes current a effective value I from a current detection value by a current detector 10, multiplies the current effective value I by a rated voltage value V set and stored in advance to compute power Pm, subtracts an unladen power value Pn from the power Pm to compute a laden power value Pt, computes motor torque τ from the laden power value Pt and the latest running speed ω, and computes and outputs a passenger number N from the torque τ with the use of a characteristic diagram of the passenger number N and torque τ.

79. 发明专利

JP2002156300A WATER PRESSURE MEASURING APPARATUS 失效
公开(公告)号：JP2002156300A
公开(公告)日：2002-05-31
申请号：JP2000352998
申请日：2000-11-20
申请人： HITACHI BUILDING SYS CO LTD
发明人： TAZAKI HIROSHI
IPC分类号： G01L19/00
摘要： PROBLEM TO BE SOLVED: To provide a water pressure measuring apparatus surely measurable of water pressure with a simple structure. SOLUTION: The water pressure measuring apparatus is constituted of a faucet connection pipe 2, a pressure meter 3 connected to one end of the faucet connection pipe 2 to be able to measure the pressure at the faucet connection pipe 2, a flow out pipe 4 connected to the faucet connection pipe 2 and a flow out valve 5 provided to the flow out pipe 4 to open and close the path of the flow out pipe 4.

80. 发明专利

JP2002154771A CAR-INSIDE BLOWER DEVICE FOR ELEVATOR 失效
公开(公告)号：JP2002154771A
公开(公告)日：2002-05-28
申请号：JP2000352994
申请日：2000-11-20
申请人： HITACHI BUILDING SYS CO LTD
发明人： MORIYA HITOSHI
IPC分类号： B66B11/02
摘要： PROBLEM TO BE SOLVED: To provide a car-inside blower device for an elevator capable of preventing the uncomfortableness of passengers inside a car. SOLUTION: The car 1 of the elevator is provided with an automatic speed control device 4 for controlling a fan 3 so that the air flow by the fan 3 has the I/f fluctuation characteristic.

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