Patents by Inventor Ikuo Asami
Ikuo Asami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8172041Abstract: A machineroom-less elevator in which a counterweight is vertically moved behind a cage, with the cage and the counterweight being suspended in a jig back manner through a first and second diverting sheaves. In this machineroom-less elevator, a sufficiently large vertical stroke of the counterweight can be secured, while a durability of a hoist rope is improved. In addition, since no tensile difference is generated in respective parts of the hoist rope, vertical vibrations of the cage are prevented when the cage restarts a vertical movement. A traction sheave is disposed on one of right and left sidewalls of an elevator shaft. A first diverting sheave is disposed below and sufficiently apart from the traction sheave, and a second diverting sheave is disposed on a top of a rear wall of the elevator shaft.Type: GrantFiled: June 1, 2004Date of Patent: May 8, 2012Assignee: Toshiba Elevator Kabushiki KaishaInventors: Kan Kawasaki, Ikuo Asami, Takashi Ishii, Shun Fujimura, Satoshi Takasawa
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Patent number: 7562745Abstract: An elevator in which a driving apparatus, a traction sheave, and a counterweight-side rope hitching portion are arranged above one rail of the right and left cage-side guide rails, while a cage-side rope hitching portion and a speed governor are arranged above the other rail of the right and left cage-side guide rails. Since a control panel is arranged along a rear inner wall surface of the machine room, a large operation space can be secured in a center part of the floor of the machine room. Further, since a machine beam can be extended at full length in the back and forth direction in the machine room, no additional building-side receiving beam is needed.Type: GrantFiled: June 17, 2004Date of Patent: July 21, 2009Assignee: Toshiba Elevator Kabushiki KaishaInventors: Takashi Ishii, Kazuaki Miyakoshi, Shigeru Takaishi, Hiroshi Sano, Kan Kawasaki, Ikuo Asami, Kazuhiro Izumi, Takanori Urata, Shun Fujimura, Masayuki Higashi, Satoshi Takasawa, Masahiro Kuramitsu
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Publication number: 20090008192Abstract: An elevator has a machineroom of a comparatively low height so designed that a sufficiently large working space necessary for inspection and maintenance work is available in the machineroom and a hoist cable can be wound round a traction sheave disposed in the machineroom at a large contact angle. The elevator has a cage provided with front and back cage-side sheaves and suspended for vertical movement in an elevator shaft, and a counterweight that moves vertically in a space behind a vertical plane containing the back wall of the cage in the elevator shaft. The traction sheave and a drive unit for driving the traction sheave are disposed in the machineroom with their axes laterally extended. The back cage-side sheave lies below the traction sheave.Type: ApplicationFiled: February 27, 2006Publication date: January 8, 2009Inventors: Kazuhiro Tanaka, Shigeru Takaishi, Kan Kawasaki, Ikuo Asami, Toshinori Iwai
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Publication number: 20080277207Abstract: A machineroom-less elevator in which a counterweight is vertically moved behind a cage, with the cage and the counterweight being suspended in a jig back manner through a first and second diverting sheaves. In this machineroom-less elevator, a sufficiently large vertical stroke of the counterweight can be secured, while a durability of a hoist rope is improved. In addition, since no tensile difference is generated in respective parts of the hoist rope, vertical vibrations of the cage are prevented when the cage restarts a vertical movement. A traction sheave is disposed on one of right and left sidewalls of an elevator shaft. A first diverting sheave is disposed below and sufficiently apart from the traction sheave, and a second diverting sheave is disposed on a top of a rear wall of the elevator shaft.Type: ApplicationFiled: June 1, 2004Publication date: November 13, 2008Applicant: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventors: Kan Kawasaki, Ikuo Asami, Takashi Ishii, Shun Fujimura, Satoshi Takasawa
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Patent number: 7413055Abstract: In an elevator, a drive device, a traction sheave, and a weight-side stop portion are arranged above one of a pair of left and right cage-side guide rails, and a cage-side stop portion and speed governor are arranged above the other cage-side guide rail. A wide workspace is realized in the middle of the floor of the machinery chamber, since the control panel is arranged along the middle of the inside wall surface of the front face of the machinery chamber. Furthermore, provision of an additional supporting beam mounted in the building is unnecessary, since the machine beam can extend fully in the forwards/rearwards direction in the interior of the machinery chamber.Type: GrantFiled: February 3, 2004Date of Patent: August 19, 2008Assignee: Toshiba Elevator Kabushiki KaishaInventors: Kan Kawasaki, Ikuo Asami, Takashi Ishii, Kazuaki Miyakoshi, Masahiro Kuramitsu, Kazuhiro Izumi, Hiroshi Sano, Shigeru Takaishi, Shun Fujimura, Takanori Urata, Satoshi Takasawa, Masayuki Higashi
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Patent number: 7383924Abstract: Rubber vibration isolators are held between a base frame supporting a driving device and an upper deflecting sheave, and a support connected to car guide rails and a counterweight guide rail. The rubber vibration isolators are held between a horizontal member and vertical members of a support frame supporting lower deflecting sheaves. Transmission of vibrations generated by the driving device, the upper deflecting sheave, and the lower deflecting sheaves to the side walls of an elevator shaft can be intercepted.Type: GrantFiled: July 7, 2004Date of Patent: June 10, 2008Assignee: Toshiba Elevator Kabushiki KaishaInventors: Kazuhiro Izumi, Kan Kawasaki, Ikuo Asami, Takashi Ishii, Takanori Urata, Shun Fujimura, Masayuki Higashi, Masahiro Kuramitsu
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Publication number: 20070175707Abstract: In an elevator according to the present invention, a driving apparatus 42, a traction sheave 41, and a counterweight-side rope hitching portion 46 are arranged above one rail 21L of the right and left cage-side guide rails, while a cage-side rope hitching portion 44 and a speed governor 47 are arranged above the other rail 21R of the right and left cage-side guide rails. Since a control panel 48 is arranged along a rear inner wall surface 34 of the machine room, a large operation space can be secured in a center part of the floor 31 of the machine room 30. Further, since a machine beam 53 can be extended at full length in the back and forth direction in the machine room 30, no additional building-side receiving beam is needed.Type: ApplicationFiled: June 17, 2004Publication date: August 2, 2007Applicant: Toshiba Elevator Kabushiki KaishaInventors: Takashi Ishii, Kazuaki Miyakoshi, Shigeru Takaishi, Hiroshi Sano, Kan Kawasaki, Ikuo Asami, Kazuhiro Izumi, Takanori Urata, Shun Fujimura, Masayuki Higashi, Satoshi Takasawa, Masahiro Kuramitsu
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Publication number: 20070170003Abstract: Rubber vibration isolators are held between a base frame supporting a driving device and an upper deflecting sheave, and a support connected to car guide rails and a counterweight guide rail. The rubber vibration isolators are held between a horizontal member and vertical members of a support frame supporting lower deflecting sheaves. Transmission of vibrations generated by the driving device, the upper deflecting sheave, and the lower deflecting sheaves to the side walls of an elevator shaft can be intercepted.Type: ApplicationFiled: July 7, 2004Publication date: July 26, 2007Applicant: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventors: Kazuhiro Izumi, Kan Kawasaki, Ikuo Asami, Takashi Ishii, Takanori Urata, Shun Fujimura
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Publication number: 20060289245Abstract: A balancing apparatus includes a frame body (1), a first weight (2) and a second weight (3) separated from each other vertically in the frame body (1). The first weight (2) is connected to the frame body (1) through elastic bodies (41, 42). The elastic bodies (41, 42) are always subjected to compression load. The first and second weights (2, 3) are accommodated together in the frame body (1). Since tensional load is not applied to the elastic bodies (41, 42), the durability of the balancing apparatus can be ensured.Type: ApplicationFiled: March 5, 2005Publication date: December 28, 2006Inventors: Ikuo Asami, Masashi Miyawaki
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Publication number: 20060163009Abstract: An elevator system having no machineroom is provided in which a height of a pit in a bottom of an elevator shaft can be reduced, a maintenance operation can be carried out at one on an upper part of the cage, and cage-side sheaves and cage-side guide rails can be disposed symmetrically with respect to the center of gravity of the cage. The elevator system having no machineroom includes a pair of right and left cage-side sheaves 16L and 16R disposed above a cage 10, and a traction sheave 17 disposed behind a cage-side guide rail 11L. The pair of right and left cage-side sheaves 16L and 16R are disposed such that each rotational angle of the pair of right and left cage-side sheaves 16L and 16R is extended parallel to a rotational axis of the traction sheave, or extended at a direction angle close to that of the rotational axis of the traction sheave.Type: ApplicationFiled: September 24, 2003Publication date: July 27, 2006Applicant: TOSHIBA ELEVATOR KABUSHIKI KAISHAInventors: Takashi Ishii, Kan Kawasaki, Ikuo Asami, Satoshi Takasawa, Shun Fujimura
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Publication number: 20050178621Abstract: A drive device (42), a traction sheave (41) and a weight-side stop portion (46) are arranged above one (21L) of a pair of left and right cage-side guide rails and a cage-side stop portion (44) and speed governor (47) are arranged above the other (21R) cage-side guide rail. Also a wide workspace can be guaranteed in the middle of the floor (31) of the machinery chamber (30), since the control panel (48) is arranged along the middle of the inside wall surface (37) of the front face of the machinery chamber (30). Furthermore, provision of an additional supporting beam mounted in the building is unnecessary, since the machine beam (53) can extend fully in the forwards/rearwards direction in the interior of the machinery chamber (30).Type: ApplicationFiled: February 3, 2004Publication date: August 18, 2005Applicant: Toshiba Elevator Kabushiki KaishaInventors: Kan Kawasaki, Ikuo Asami, Takashi Ishii, Kazuaki Miyakoshi, Masahiro Kuramitsu, Kazuhiro Izumi, Hiroshi Sano, Shigeru Takaishi, Shun Fujimura, Takanori Urata, Satoshi Takasawa, Masayuki Higashi
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Patent number: 6786305Abstract: A double-decker elevator includes a winch, an upper car, a lower car, a car support frame supporting the upper and lower car, a car space adjusting device capable of adjusting the space between the upper and lower car, and an emergency operation controller. When the car space adjusting device is unable to operate normally, the emergency operation controller operates the winch to move the car support frame such that the upper and lower car are located sequentially at positions corresponding to adjacent floors, respectively.Type: GrantFiled: May 6, 2002Date of Patent: September 7, 2004Assignee: Toshiba Elevator Kabushiki KaishaInventors: Kosei Kamimura, Ikuo Asami
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Patent number: 6488124Abstract: In an elevator, a driving unit is installed at the top of an elevator shaft above a counterweight. Traction sheaves engage with ropes and are rotated by the driving device. These traction sheaves are positioned close to wall surfaces of the elevator shaft, that are adjacent to its wall surface facing the counterweight. The traction sheaves are also positioned outside the horizontally projected plane of a car.Type: GrantFiled: September 25, 1998Date of Patent: December 3, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kunio Yasuda, Yoshiaki Fujita, Kosei Kamimura, Ikuo Asami, Yasuyuki Wagatsuma, Kiyoshi Kobayashi, Tadashi Munakata, Shin Murakami, Yoshinobu Ishikawa, Takeshi Miyata, Mitsuo Hayase
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Publication number: 20020134623Abstract: A double-deck elevator includes a winch (6), an upper car (2), a lower car (3), a car support frame 1 supporting the upper and the lower car (2, 3), a car space adjusting device (4) capable of adjusting the space between the upper and the lower car (2, 3), and an emergency operation controller (12). When the car space adjusting device (4) is unable to operate normally, the emergency operation controller (12) operates the winch (6) to move the car support frame (1) such that the upper and the lower car (2, 3) are located sequentially at positions corresponding to adjacent floors, respectively.Type: ApplicationFiled: May 6, 2002Publication date: September 26, 2002Inventors: Kosei Kamimura, Ikuo Asami