Patents by Inventor Noboru Sagawa

Noboru Sagawa 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: 9056548
    Abstract: Systems and methods are disclosed for improving operability of a work vehicle. In accordance with one implementation, a work vehicle is disclosed. The work vehicle includes a first PTO shaft and a second PTO shaft, the first and second PTO shafts being removably mounted to a vehicle body rear structure and fitted to a power receiving unit on an implement side. The work vehicle also includes a PTO drive mechanism comprising a PTO transmission mechanism, the PTO drive mechanism transmitting rotational power from a power source to the first PTO shaft, and a storage unit storing the second PTO shaft. The work vehicle further includes a PTO transmission operation lever allowing a transmission operation to be performed on the PTO transmission mechanism, wherein the PTO transmission operation lever and the storage unit are provided in the vehicle body rear structure.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: June 16, 2015
    Assignee: ISEKI & CO., LTD.
    Inventors: Tomoo Kiyokawa, Noboru Sagawa, Fumiaki Nishikawa, Tatsuzo Murakami
  • Patent number: 9003908
    Abstract: According to one embodiment, a working vehicle includes: a main change speed mechanism configured to transmit a rotating power, generated by a power source; a first auxiliary change speed mechanism configured to transmit the rotating power, transmitted through the main change speed mechanism, to drive wheels; a second auxiliary change speed mechanism configured to transmit the rotating power to the drive wheels; a first lever configured to operate the first auxiliary change speed mechanism to perform a first auxiliary shift operation; and a second lever configured to operate the second auxiliary change speed mechanism to perform a second auxiliary shift operation, wherein: the first auxiliary change speed mechanism is activated when the second auxiliary change speed mechanism in a neutral state; and the second auxiliary change speed mechanism is activated when the first auxiliary change speed mechanism is in the neutral state.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 14, 2015
    Assignee: Iseki & Co., Ltd.
    Inventors: Noboru Sagawa, Takashi Wakino, Fumiaki Nishikawa, Tatsuzo Murakami, Satoru Kinoshita
  • Patent number: 8944193
    Abstract: According to one embodiment, a working vehicle includes: a transmission case including a front transmission case and a rear transmission case, and a power transmission mechanism, arranged in the transmission case, configured to transmit rotating power from an engine to rear wheels or front wheels and transmit the rotating power to an implement mounted to a vehicle body, including: an input shaft; a first switching mechanism configured to switch a rotation corresponding to the rotating power to rotation in advancing direction or reversing direction; a main change speed mechanism; an auxiliary change speed mechanism; a second switching mechanism configured to switch whether to transmit the rotating power to the front wheels or not; and a PTO driving mechanism, wherein a clutch of the first switching mechanism, a clutch of the second switching mechanism and a clutch of the PTO driving mechanism are arranged in the front transmission case.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: February 3, 2015
    Assignee: Iseki & Co., Ltd.
    Inventor: Noboru Sagawa
  • Patent number: 8931586
    Abstract: A working vehicle includes a joy-stick lever which operates a front loader, and a main change lever etc., wherein a right side dashboard is located in the right side of the driver's seat, the forward end step part is located beside the steering wheel, and is provided with the joy-stick lever, a grip part of the main change lever is disposed at a lower position than the steering wheel, a grip part of the position lever is disposed at an outside position of the grip part of the main change lever on a plan view, and a grip part of the joy-stick lever is disposed at a front side position of the grip part of the main change lever on a plan view, and is disposed in a range of a height of the steering wheel on a side view.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: January 13, 2015
    Assignee: Iseki & Co., Ltd.
    Inventors: Takashi Wakino, Tomoo Kiyokawa, Satoru Kinoshita, Noboru Sagawa, Takanori Izutani
  • Publication number: 20140238757
    Abstract: According to one embodiment, a working vehicle includes: a transmission case including a front transmission case and a rear transmission case, and a power transmission mechanism, arranged in the transmission case, configured to transmit rotating power from an engine to rear wheels or front wheels and transmit the rotating power to an implement mounted to a vehicle body, including: an input shaft; a first switching mechanism configured to switch a rotation corresponding to the rotating power to rotation in advancing direction or reversing direction; a main change speed mechanism; an auxiliary change speed mechanism; a second switching mechanism configured to switch whether to transmit the rotating power to the front wheels or not; and a PTO driving mechanism, wherein a clutch of the first switching mechanism, a clutch of the second switching mechanism and a clutch of the PTO driving mechanism are arranged in the front transmission case.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: ISEKI & CO., LTD.
    Inventor: Noboru Sagawa
  • Publication number: 20140076103
    Abstract: According to one embodiment, a working vehicle includes: a main change speed mechanism configured to transmit a rotating power, generated by a power source; a first auxiliary change speed mechanism configured to transmit the rotating power, transmitted through the main change speed mechanism, to drive wheels; a second auxiliary change speed mechanism configured to transmit the rotating power to the drive wheels; a first lever configured to operate the first auxiliary change speed mechanism to perform a first auxiliary shift operation; and a second lever configured to operate the second auxiliary change speed mechanism to perform a second auxiliary shift operation, wherein: the first auxiliary change speed mechanism is activated when the second auxiliary change speed mechanism in a neutral state; and the second auxiliary change speed mechanism is activated when the first auxiliary change speed mechanism is in the neutral state.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 20, 2014
    Applicant: ISEKI & CO., LTD.
    Inventors: Noboru Sagawa, Takashi Wakino, Fumiaki Nishikawa, Tatsuzo Murakami, Satoru Kinoshita
  • Publication number: 20140076073
    Abstract: Systems and methods are disclosed for improving operability of a work vehicle. In accordance with one implementation, a work vehicle is disclosed. The work vehicle includes a first PTO shaft and a second PTO shaft, the first and second PTO shafts being removably mounted to a vehicle body rear structure and fitted to a power receiving unit on an implement side. The work vehicle also includes a PTO drive mechanism comprising a PTO transmission mechanism, the PTO drive mechanism transmitting rotational power from a power source to the first PTO shaft, and a storage unit storing the second PTO shaft. The work vehicle further includes a PTO transmission operation lever allowing a transmission operation to be performed on the PTO transmission mechanism, wherein the PTO transmission operation lever and the storage unit are provided in the vehicle body rear structure.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Inventors: Tomoo Kiyokawa, Noboru Sagawa, Fumiaki Nishikawa, Tatsuzo Murakami
  • Publication number: 20140056676
    Abstract: A working vehicle includes a joy-stick lever which operates a front loader, and a main change lever etc., wherein a right side dashboard is located in the right side of the driver's seat, the forward end step part is located beside the steering wheel, and is provided with the joy-stick lever, a grip part of the main change lever is disposed at a lower position than the steering wheel, a grip part of the position lever is disposed at an outside position of the grip part of the main change lever on a plan view, and a grip part of the joy-stick lever is disposed at a front side position of the grip part of the main change lever on a plan view, and is disposed in a range of a height of the steering wheel on a side view.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 27, 2014
    Applicant: ISEKI & CO., LTD.
    Inventors: Takashi WAKINO, Tomoo KIYOKAWA, Satoru KINOSHITA, Noboru SAGAWA, Takanori IZUTANI
  • Patent number: 8220582
    Abstract: A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: July 17, 2012
    Assignee: Iseki & Co., Ltd.
    Inventors: Mitsuo Toyokawa, Shingo Fujioka, Yusuke Murakami, Tomoaki Watanabe, Masahiko Yoshino, Hiroto Mori, Noboru Sagawa, Kiyofumi Sakurahara
  • Publication number: 20110203868
    Abstract: A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to
    Type: Application
    Filed: May 24, 2010
    Publication date: August 25, 2011
    Applicant: ISEKI & CO., LTD.
    Inventors: Mitsuo TOYOKAWA, Shingo FUJIOKA, Yusuke MURAKAMI, Tomoaki WATANABE, Masahiko YOSHINO, Hiroto MORI, Noboru SAGAWA, Kiyofumi SAKURAHARA
  • Patent number: 4528867
    Abstract: A transmission case for tractors consists of three parts, a front transmission case, a rear transmission case and a spacer transmission case, the spacer transmission case having a mounting flange around its outer periphery. The front and rear transmission cases are securely mounted to the mounting flange of the spacer transmission case so that the spacer transmission case is contained in either or both of the front and rear transmission cases thereby minimizing the entire length of the transmission case. The transmission case is also characterized in that the spacer transmission case has an opening in the ceiling to enable easy access to the gear components installed in the spacer transmission case during assembling work and adjustment.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: July 16, 1985
    Assignee: Iseki & Co., Ltd.
    Inventors: Hideo Semba, Toshio Hori, Noboru Sagawa, Ryota Nagano
  • Patent number: D845182
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: April 9, 2019
    Assignee: ISEKI & CO., LTD.
    Inventors: Noboru Sagawa, Shingo Fujioka