Patents by Inventor Tomoyuki Ebihara

Tomoyuki Ebihara 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).

  • Publication number: 20240002028
    Abstract: [Problem] In a reduction and reversing gear unit in which hydraulic oil is supplied to a generator motor or the like as cooling oil by a hydraulic pump driven by an electric motor, which is separate from the generator motor, a problem of a noise generated by fully driving the hydraulic pump and the electric motor at all time is solved by assuming a high hydraulic oil temperature when a maximum load acts on the generator motor.
    Type: Application
    Filed: June 26, 2023
    Publication date: January 4, 2024
    Inventors: Tomoyuki EBIHARA, Shigeaki NAKAGAWA
  • Publication number: 20220289355
    Abstract: In a marine propulsion apparatus that transmits power of at least one of an internal combustion engine (ICE) and a generator motor (GM) mounted on a ship to a propeller via a forward reverse switching mechanism, the marine propulsion apparatus can be downsized as a whole. The marine propulsion apparatus includes a connection switching mechanism capable of selectively connecting the GM to an upstream side and a downstream side of the power transmission from the ICE in the forward reverse switching mechanism. Then, the forward reverse switching mechanism is interposed between the ICE and the connection switching mechanism, and a large torque from the ICE is not directly transmitted to the connection switching mechanism. As a result, it is not necessary to increase the capacity of the connection switching mechanism, and the connection switching mechanism and thus the marine propulsion apparatus can be downsized.
    Type: Application
    Filed: July 20, 2020
    Publication date: September 15, 2022
    Inventors: Koji KIYOOKA, Tomoyuki EBIHARA, Takashi NISHIZAWA, Koga YAMANE, Kengo SASAHARA, Shigeaki NAKAGAWA, Kazuki YASUI, Toshiaki OKANISHI
  • Patent number: 10822069
    Abstract: A reverse gear includes an input shaft, a forward clutch, a reverse clutch, an output shaft, a reduction mechanism, and a relay shaft. The input shaft receives rotational power of a main engine. The forward clutch transmits the rotational power of the input shaft as forward output. The reverse clutch transmits the rotational power of the input shaft as reverse output. The output shaft outputs the rotational power transmitted via the forward clutch and the reverse clutch. The reduction mechanism reduces the rotational power of the output shaft and transmits the reduced rotational power to the propeller shaft. The relay shaft intersects the input shaft and relays the rotational power from the forward clutch and the reverse clutch toward the output shaft. The relay shaft and the output shaft are coupled to each other via a pair of intersecting-shaft gears to be able to transmit power.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 3, 2020
    Assignee: KANZAKI KOKYUKOKI MANUFACTURING CO., LTD.
    Inventor: Tomoyuki Ebihara
  • Patent number: 10604223
    Abstract: A reduction reverse gear according to the invention of the present application includes: an input shaft to which rotational driving force from a main engine is input; a front-reverse housing accommodating forward-backward switching mechanisms with which the rotational driving force from the input shaft is switched among forward, neutral, and backward; an output shaft through which the rotational driving force from the forward-backward switching mechanisms is output; and a reduction housing accommodating a reduction mechanism with which the rotational driving force from the output shaft is reduced to be transmitted to a propeller shaft. The housings are detachably coupled to each other on front and rear sides in an axial direction. The input shaft and the output shaft are arranged on the same plane while facing each other.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: March 31, 2020
    Assignee: KANZAKI KOKYUKOKI MANUFACTURING CO., LTD.
    Inventor: Tomoyuki Ebihara
  • Patent number: 10422389
    Abstract: A transmission includes a gear train, a transmission shaft driven by the gear train, a transmission casing incorporating the gear train and the transmission shaft, an axle driven by the gear train, a power take-off (PTO) unit attached to the transmission casing, and a parking brake. The transmission shaft and the axle are extended parallel to each other. The PTO unit includes a PTO input shaft, a PTO shaft, and a PTO drive train transmitting power from the PTO input shaft to the PTO shaft. The PTO input shaft is connected coaxially to the transmission shaft so as to receive power from the transmission shaft. The parking brake is provided on the transmission shaft or the PTO input shaft.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: September 24, 2019
    Assignee: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventor: Tomoyuki Ebihara
  • Patent number: 10144495
    Abstract: An outboard motor includes an engine having an output portion. A lower gear mechanism drives a propeller disposed below the engine. A transmission includes an input shaft that transmits power from the output portion to the transmission. An output shaft transmits power from the transmission to the lower gear mechanism. A reverse idler shaft is parallel to an intermediate shaft. A forward clutch is disposed on one of the input and intermediate shafts and connects and disconnects power from the input shaft to the intermediate shaft. A reverse clutch is disposed on the intermediate shaft and connects and disconnects power transmission from the input shaft to the intermediate shaft. Power of the input shaft is transmitted to the output shaft via the forward clutch and the intermediate shaft and is transmitted to the output shaft via the reverse idler shaft, the reverse clutch, and the intermediate shaft.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 4, 2018
    Assignee: KANZAKI KOKYUKOKI MANUFACTURING CO., LTD.
    Inventor: Tomoyuki Ebihara
  • Publication number: 20180086428
    Abstract: A reverse gear for watercrafts includes an input shaft that receives rotational power of a main engine. A forward/reverse switching mechanism includes a reduction function and switches the rotational power of the input shaft among forward, neutral, and reverse states. An output shaft outputs the rotational power of the forward/reverse switching mechanism and rotates at a rotational speed that differs from a rotational speed of the input shaft due to the reduction function of the forward/reverse switching mechanism. A reduction mechanism includes a fixed reduction ratio, and reduces the rotational power of the output shaft and transmits the reduced rotational power to a propeller shaft. A forward/reverse housing accommodates the forward/reverse switching mechanism. A reduction housing accommodates the reduction mechanism. The forward/reverse housing and the reduction housing are detachably coupled one behind the other in an axial direction of the output shaft.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventor: Tomoyuki EBIHARA
  • Publication number: 20180079478
    Abstract: A reverse gear includes an input shaft, a forward clutch, a reverse clutch, an output shaft, a reduction mechanism, and a relay shaft. The input shaft receives rotational power of a main engine. The forward clutch transmits the rotational power of the input shaft as forward output. The reverse clutch transmits the rotational power of the input shaft as reverse output. The output shaft outputs the rotational power transmitted via the forward clutch and the reverse clutch. The reduction mechanism reduces the rotational power of the output shaft and transmits the reduced rotational power to the propeller shaft. The relay shaft intersects the input shaft and relays the rotational power from the forward clutch and the reverse clutch toward the output shaft. The relay shaft and the output shaft are coupled to each other via a pair of intersecting-shaft gears to be able to transmit power.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 22, 2018
    Inventor: Tomoyuki EBIHARA
  • Publication number: 20180057134
    Abstract: An outboard motor includes an engine having an output portion. A lower gear mechanism drives a propeller disposed below the engine. A transmission includes an input shaft that transmits power from the output portion to the transmission. An output shaft transmits power from the transmission to the lower gear mechanism. A reverse idler shaft is parallel to an intermediate shaft. A forward clutch is disposed on one of the input and intermediate shafts and connects and disconnects power from the input shaft to the intermediate shaft. A reverse clutch is disposed on the intermediate shaft and connects and disconnects power transmission from the input shaft to the intermediate shaft. Power of the input shaft is transmitted to the output shaft via the forward clutch and the intermediate shaft and is transmitted to the output shaft via the reverse idler shaft, the reverse clutch, and the intermediate shaft.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 1, 2018
    Inventor: Tomoyuki EBIHARA
  • Publication number: 20170321760
    Abstract: A transmission includes a gear train, a transmission shaft driven by the gear train, a transmission casing incorporating the gear train and the transmission shaft, an axle driven by the gear train, a power take-off (PTO) unit attached to the transmission casing, and a parking brake. The transmission shaft and the axle are extended parallel to each other. The PTO unit includes a PTO input shaft, a PTO shaft, and a PTO drive train transmitting power from the PTO input shaft to the PTO shaft. The PTO input shaft is connected coaxially to the transmission shaft so as to receive power from the transmission shaft. The parking brake is provided on the transmission shaft or the PTO input shaft.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 9, 2017
    Inventor: Tomoyuki EBIHARA
  • Patent number: 9797485
    Abstract: A belt type continuously variable transmission device includes an actuator that moves a moveable sheave member of a drive pulley which is a one-side pulley in an axial direction. The actuator includes a moveable feed member, a gear case, and an electric motor. The moveable feed member includes an inner tube section in which a moveable-side feed screw is provided, an outer tube section in which an outer gear is provided, and a lid section. The gear case has a fixed tube section in which a fixed-side feed screw is provided, and an outer cover. The electric motor drives a motor-side gear that intermeshes with the outer gear. The outer cover has an opening into which the outer tube section is inserted and that proximately opposes an outer circumferential surface of the outer tube section.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: October 24, 2017
    Assignee: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventors: Tomoyuki Ebihara, Tatsuya Kamada, Michio Tsukamoto, Koji Iwaki
  • Publication number: 20170284511
    Abstract: A reduction reverse gear according to the invention of the present application includes: an input shaft to which rotational driving force from a main engine is input; a front-reverse housing accommodating forward-backward switching mechanisms with which the rotational driving force from the input shaft is switched among forward, neutral, and backward; an output shaft through which the rotational driving force from the forward-backward switching mechanisms is output; and a reduction housing accommodating a reduction mechanism with which the rotational driving force from the output shaft is reduced to be transmitted to a propeller shaft. The housings are detachably coupled to each other on front and rear sides in an axial direction. The input shaft and the output shaft are arranged on the same plane while facing each other.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 5, 2017
    Inventor: Tomoyuki EBIHARA
  • Patent number: 9475384
    Abstract: A powertrain system for driving a vehicle comprises an engine, a transaxle including a hydraulic motor, a hydraulic pump separated from the hydraulic motor, and a gearbox joined to the hydraulic pump. The engine includes an engine output shaft extended in the lateral direction of the vehicle. The hydraulic pump and the hydraulic motor are fluidly connected to each other so as to constitute a hydrostatic transmission. The gearbox supports a PTO shaft. The gearbox incorporates gears for drivingly connecting the engine output shaft to the hydraulic pump, and for drivingly connecting the engine output shaft to the PTO shaft extended in the fore-and-aft direction of the vehicle.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: October 25, 2016
    Assignee: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventors: Jun Matsuura, Koji Iwaki, Tomoyuki Ebihara
  • Patent number: 9420740
    Abstract: A riding lawnmower includes left and right wheels, at least one caster wheel, a lawnmower blade or reel, and a control section. The left and right wheels are independently driven by electric rotary machines to travel. The lawnmower blade or reel is driven for mowing. The control section, in response to turn instruction input by a turn operator, controls the left and right wheels according to preset standard setting conditions, or according to deceleration setting conditions which differ from the standard setting conditions, under which at least one of a vehicle movement speed and vehicle turning speed is decelerated more than under standard setting conditions. The riding lawnmower includes a section designating either standard setting conditions or deceleration setting conditions. In a riding lawnmower, left and right wheels are caused to turn around a turn center position corresponding to a turn instruction according to designated setting conditions.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: August 23, 2016
    Assignee: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventors: Norihiro Ishii, Kengo Sasahara, Kazunari Koga, Jun Matsuura, Tomoyuki Ebihara, Katsumoto Mizukawa
  • Patent number: 9416859
    Abstract: A hydrostatic stepless transmission (“HST”) includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: August 16, 2016
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Koji Iwaki, Jun Matsuura, Daisuke Murashima, Tomoyuki Ebihara, Minoru Kamada
  • Publication number: 20160186841
    Abstract: A belt type continuously variable transmission device includes an actuator that moves a moveable sheave member of a drive pulley which is a one-side pulley in an axial direction. The actuator includes a moveable feed member, a gear case, and an electric motor. The moveable feed member includes an inner tube section in which a moveable-side feed screw is provided, an outer tube section in which an outer gear is provided, and a lid section. The gear case has a fixed tube section in which a fixed-side feed screw is provided, and an outer cover. The electric motor drives a motor-side gear that intermeshes with the outer gear. The outer cover has an opening into which the outer tube section is inserted and that proximately opposes an outer circumferential surface of the outer tube section.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 30, 2016
    Applicant: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Tomoyuki Ebihara, Tatsuya Kamada, Michio Tsukamoto, Koji Iwaki
  • Patent number: 9313948
    Abstract: A battery car 25 which supplies electrical power to a running motor 16 and a mower motor 15 is included, wheels 34, 38 for facilitating the movement is attached to the battery car 25, and the battery car 25 is connected to a rear portion of a chassis 11 in a freely attachable and detachable manner. Moreover, a bracket 50 for connecting the battery car 25 is included in the rear portion of the chassis 11, and a locking shaft 74 to be connected to the bracket 50 is included in the battery car 25.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: April 19, 2016
    Assignee: YANMAR CO., LTD.
    Inventors: Kazuma Moriguchi, Tomoyuki Ebihara
  • Patent number: 9288942
    Abstract: An electric riding mower efficiently cools a motor driver. The mower includes two running motors 16 independently driving paired rear tires 13; a mower blade mowing grass by being rotated; a mowing motor 15 rotating the mower blade; a battery 25 supplying electric power to the running motors 16 and the mowing motor 15; and a mower-motor driver MD controlling the rotational speed of the mowing motor 15, wherein the mower-motor driver MD is disposed in a driver storage part on a front part of the mower, and a slit 33SL taking in external air is disposed on a front surface of the driver storage part.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: March 22, 2016
    Assignee: YANMAR CO., LTD.
    Inventors: Kazuma Moriguchi, Shinichi Motegi, Keiji Matsumoto, Mitsuhiro Nakagaki, Tomoyuki Ebihara
  • Publication number: 20160040724
    Abstract: A transmission includes a gear train, a transmission shaft driven by the gear train, a transmission casing incorporating the gear train and the transmission shaft, an axle driven by the gear train, a power take-off (PTO) unit attached to the transmission casing, and a parking brake. The transmission shaft and the axle are extended parallel to each other. The PTO unit includes a PTO input shaft, a PTO shaft, and a PTO drive train transmitting power from the PTO input shaft to the PTO shaft. The PTO input shaft is connected coaxially to the transmission shaft so as to receive power from the transmission shaft. The parking brake is provided on the transmission shaft or the PTO input shaft.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 11, 2016
    Inventors: Tomoyuki EBIHARA, Shuji NISHIMOTO
  • Publication number: 20160029555
    Abstract: A control system for an engineless, motor-driven lawnmower vehicle includes electric motors and controllers. At least one of the electric motors is an electric drive motor connected to a drive wheel of the lawnmower vehicle to enable transmission of motive power. At least one other electric motor is a mower-related electric motor connected to a lawnmower rotary tool to enable transmission of motive power. At least one of the controllers is a drive wheel controller which includes a drive wheel driver and which controls operation of the electric drive motor in response to a signal from at least one operator sensor for detecting an operation amount of at least one operator. At least one controller controls to activate or stop the mower-related electric motor. At least one controller is connected to the drive wheel controller and transmits a control signal thereto in response to a signal from the operator sensor.
    Type: Application
    Filed: September 29, 2015
    Publication date: February 4, 2016
    Inventors: Norihiro ISHII, Kengo SASAHARA, Kazunari KOGA, Jun MATSUURA, Tomoyuki EBIHARA, Katsumoto MIZUKAWA, Hongkun WANG