Patents by Inventor Yasuyuki Wagatsuma

Yasuyuki Wagatsuma 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).

  • Patent number: 6491136
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: December 10, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6488124
    Abstract: 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: Grant
    Filed: September 25, 1998
    Date of Patent: December 3, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kunio Yasuda, Yoshiaki Fujita, Kosei Kamimura, Ikuo Asami, Yasuyuki Wagatsuma, Kiyoshi Kobayashi, Tadashi Munakata, Shin Murakami, Yoshinobu Ishikawa, Takeshi Miyata, Mitsuo Hayase
  • Patent number: 6443266
    Abstract: An elevator including a cage configured to move up and down in a shaft along a guide rail, a plurality of car sheaves installed at a bottom of the cage, a cable placed around the car sheaves and configured to suspend the cage, a hoisting machine having a traction sheave configured to drive the cable, a base extending in a width direction of the cage and configured to support the car sheaves, and a first elastic member disposed between the cage and the base so as to attenuate vibration transferred to the cage.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: September 3, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shin Murakami, Yasuyuki Wagatsuma, Tadashi Shudo
  • Patent number: 6390243
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 21, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6382360
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 7, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20020040831
    Abstract: An elevator including a movable unit configured to ascend and descend in an elevator shaft, a guide rail installed on the elevator shaft via a plurality of rail support members and configured to guide the movable unit, a cable configured to hang the movable unit, and a driving unit mounted on the guide rail and configured to move the movable unit up and down by driving the cable. At least two securing members fixes one of the rail support members is fixed to a wall of the shaft by securing members separated from each other by an interval in the vertical direction.
    Type: Application
    Filed: December 19, 2001
    Publication date: April 11, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigeo Nakagaki, Yasuyuki Wagatsuma
  • Publication number: 20020005320
    Abstract: An elevator including a movable unit configured to ascend and descend in an elevator shaft, a guide rail installed on the elevator shaft via a plurality of rail support members and configured to guide the movable unit, a cable configured to hang the movable unit, and a driving unit mounted on the guide rail and configured to move the movable unit up and down by driving the cable. At least two securing members fixes one of the rail support members is fixed to a wall of the shaft by securing members separated from each other by an interval in the vertical direction.
    Type: Application
    Filed: September 10, 1999
    Publication date: January 17, 2002
    Inventors: SHIGEO NAKAGAKI, YASUYUKI WAGATSUMA
  • Publication number: 20010047908
    Abstract: An elevator including a cage configured to move up and down in a shaft along a guide rail, a plurality of car sheaves installed at a bottom of the cage, a cable placed around the car sheaves and configured to suspend the cage, a hoisting machine having a traction sheave configured to drive the cable, a base extending in a width direction of the cage and configured to support the car sheaves, and a first elastic member disposed between the cage and the base so as to attenuate vibration transferred to the cage.
    Type: Application
    Filed: September 1, 1999
    Publication date: December 6, 2001
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: SHIN MURAKAMI, YASUYUKI WAGATSUMA, TADASHI SHUDO
  • Publication number: 20010009211
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009210
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009209
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6247557
    Abstract: An elevator apparatus including an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave and a driving mechanism is positioned between an inner wall of the elevator path and a space occupied by an elevator car rising and falling in the elevator path. One end of a suspension rope is fixed to the elevator car in a position below a ceiling of the elevator car. With the arrangement, the car can move close to the ceiling of the elevator car effectively. Further, it is possible to reduce respective heights of the elevator path and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: June 19, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6234276
    Abstract: An elevator including a cage configured to ascend and descend in an elevator shaft along a cage guide rail, a counterweight configured to ascend and descend in the elevator shaft along a counterweight guide rail, a cable configured to hang and connect the cage and the counterweight, a drive unit configured to drive the cage and the counterweight by providing motive power for the cable, and a cable hitch mounted on the cage guide rail or the counterweight guide rail and configured to secure one end of the cable.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: May 22, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Wagatsuma, Kazuaki Miyakoshi