公开(公告)号：US20240357961A1

公开(公告)日：2024-10-31

申请号：US18630096

申请日：2024-04-09

Applicant: YAMABIKO CORPORATION

Inventor： HIROSHI MOMIYAMA

IPC: A01D34/90 ,  A01D34/84 ,  F16M13/04

CPC classification number: A01D34/902 ,  A01D34/84 ,  F16M13/04

Abstract: A working machine includes: a working device mounted on a front end of an operating rod; a power device mounted on a base end of the operating rod; and the operating rod equipped with a hanging tool for a shoulder belt. The hanging tool includes a stopper. The stopper is configured to allow a pair of fastening portions to approach or be spaced from one another while sandwiching a circumference of the operating rod. The fastening portions include a through hole orthogonal to the longitudinal direction of the operating rod. A base end of an operating lever is pivotably supported around a rotating shaft parallel to the operating rod on the second end side of an operating shaft. The operating lever is rotated such that a front end of the operating lever approaches a side surface of the operating rod to fasten the stopper.

公开(公告)号：US20240341220A1

公开(公告)日：2024-10-17

申请号：US18294542

申请日：2021-08-25

Applicant: YAMABIKO CORPORATION

Inventor： Hidenori HIRAKI ,  Kenji NAKANO ,  Yoichi FUSE ,  Lionel CONVENT

IPC: A01D34/00 ,  A01D34/64 ,  A01D34/74 ,  A01D34/86 ,  A01D75/28

CPC classification number: A01D34/008 ,  A01D34/64 ,  A01D34/74 ,  A01D34/86 ,  A01D75/28

Abstract: Provided is an autonomous lawn mower including: a movable machine body being movable through unmanned driving with moving devices; at least one lawn mowing work unit mounted on the movable machine body; and a machine body cover that covers an upper surface and a peripheral surface of the movable machine body. The at least one lawn mowing work unit includes: a cutting blade; a prime mover configured to drive the cutting blade; at least one ground-contact member, which is located within an area (WB) between the moving devices in a front-and-rear direction, and is configured to prevent contact of the cutting blade with a ground surface; and an adjustment mechanism configured to allow the lawn mowing work unit to be moved upward and downward with respect to the movable machine body. The ground-contact member and the cutting blade are located inside the machine body cover.

公开(公告)号：US20240252009A1

公开(公告)日：2024-08-01

申请号：US18411868

申请日：2024-01-12

Applicant: YAMABIKO CORPORATION

Inventor： Tomohisa UMEKI ,  Kenji Suzuki

IPC: A47L9/32 ,  A47L5/24 ,  A47L9/24 ,  A47L9/28

CPC classification number: A47L9/322 ,  A47L5/24 ,  A47L9/242 ,  A47L9/248 ,  A47L9/2857 ,  A47L9/2884

Abstract: Provided is a handheld electric vacuum capable of improving the operability and workability while reducing the likelihood of the structure becoming more complicated or larger by optimizing the layout configuration around a handle, including a blower fan, a casing, and a battery. The blower fan is inclined forwardly along a bending portion and disposed on the base end side of the bending portion provided at the base end of the pipe. In addition, an opposing portion (vertical side portion) of the handle incorporating the battery, facing the blower fan is inclined (inclined backwardly) oppositely to the blower fan. The upper length (near a grip portion) of a space of the handle formed on the base end side of the blower fan is greater than the lower length thereof.

公开(公告)号：US12036655B2

公开(公告)日：2024-07-16

申请号：US18191155

申请日：2023-03-28

Applicant: YAMABIKO CORPORATION

Inventor： Atsushi Nishimura ,  Satoshi Ueda

IPC: B25F5/00 ,  H02P3/08 ,  H02P27/04 ,  H02P27/06 ,  B27B17/08

CPC classification number: B25F5/001 ,  H02P3/08 ,  H02P27/045 ,  H02P27/06 ,  B25F5/008 ,  B27B17/08

Abstract: According to an aspect of the present invention, an electric working machine is provided. The electric working machine comprises a motor, an operation portion, a working portion, and a controller. The working portion is configured to be driven by the motor and act on a work target. The operation portion is configured to be operated by an operator. The controller is configured to control a maximum power that can be input to the motor to a first power when receiving an operation signal indicating an amount of operation to the operation portion. Further, the controller is configured to perform first switching control to switch the maximum power to a second power that is less than the first power when rotation speed of the motor becomes less than a first threshold due to a load on the working portion.

公开(公告)号：US20240044309A1

公开(公告)日：2024-02-08

申请号：US18554632

申请日：2021-04-26

Applicant: YAMABIKO CORPORATION ,  OPPAMA INDUSTRY CO., LTD.

Inventor： Akira TANABE ,  Tamotsu SAITO ,  Ryosuke IMAI ,  Ryosuke KAJIYAMA

IPC: F02N3/02 ,  F16D43/06

CPC classification number: F02N3/02 ,  F16D43/06

Abstract: Provided is an easy engine starting system including: an engine; a centrifugal clutch configured to transmit a driving force of the engine to a driven device; and a control device configured to adjust output of the engine. When the engine is to be started, the engine is accelerated at start engine output which enables the engine to reach a rotation speed higher than a clutch-in rotation speed. The control device has suppression control of suppressing, at the start engine output, the rotation speed to a rotation speed equal to or lower than the clutch-in rotation speed.

公开(公告)号：US20240026849A1

公开(公告)日：2024-01-25

申请号：US18223060

申请日：2023-07-18

Applicant: YAMABIKO CORPORATION

Inventor： Ayato OIMATSU ,  Taiji MATSUBARA ,  Keigo EGAWA

IPC: F02P5/15 ,  F02D41/04

CPC classification number: F02P5/1504 ,  F02D41/042

Abstract: An ignition resumption control unit (40) is disposed that resumes control of an ignition plug (14) if a first predetermined time has elapsed or if engine rotation number has fallen below a threshold value, after receiving an engine stop signal. The ignition resumption control unit (40) executes the control of the ignition plug (14), based on resumption ignition timings (Tg(R-on)) that are timing deviating from an entire ignition timing range set in a normal working area of an engine body (2).

公开(公告)号：US11754113B2

公开(公告)日：2023-09-12

申请号：US17917050

申请日：2021-04-06

Applicant: YAMABIKO CORPORATION

Inventor： Kunimune Kawamura

IPC: F16C3/22 ,  F02B75/32 ,  F16C3/20

CPC classification number: F16C3/22 ,  F16C3/20 ,  F02B75/32

Abstract: The rotary body according to the present invention is made of resin and attached to a crankshaft. The rotary body has an outside plate element and an inside plate element which are attached to an outside surface and an inside surface of an arm portion of the crankshaft, respectively, and a pair of filler elements disposed between the outside plate element and the inside plate element and on both sides of the arm portion. The outside plate element and the pair of the filler elements are coupled to each other, and the pair of the filler elements and the inside plate element are coupled to each other.

公开(公告)号：US20230265781A1

公开(公告)日：2023-08-24

申请号：US18020269

申请日：2021-05-21

Applicant: YAMABIKO CORPORATION

Inventor： Kuniyoshi ETO ,  Shirou YAMAGUCHI ,  Takuo YOSHIZAKI

IPC: F02B19/12 ,  F02B25/16 ,  F02B33/04

CPC classification number: F02B19/12 ,  F02B25/16 ,  F02B33/04 ,  F02B2710/036

Abstract: A two-stroke engine according to the present invention includes: a separating wall which confines a tip end portion of an ignition device; an ignition promoting chamber which is formed by means of the separating wall, is independent of a combustion chamber, and encloses the tip end portion of the ignition device; and a plurality of communicating holes which are provided in the separating wall, each of which is provided with a first opening that opens in the combustion chamber and a second opening that opens in the ignition promoting chamber, and which provide communication between the combustion chamber and the ignition promoting chamber.

公开(公告)号：US20230226679A1

公开(公告)日：2023-07-20

申请号：US18151511

申请日：2023-01-09

Applicant: YAMABIKO CORPORATION

Inventor： Hisato OSAWA

IPC: B25F5/00 ,  H02K5/20 ,  H02K7/14 ,  H02K9/06 ,  H02K9/26

CPC classification number: B25F5/008 ,  H02K5/207 ,  H02K7/145 ,  H02K9/06 ,  H02K9/26 ,  B27B17/08

Abstract: A power working machine comprises a working portion, a driving portion, a main body portion, and a blowing portion. The working portion is configured to act on a work object. The driving portion is configured to drive the working portion. The main body portion includes a bottom surface portion, an intake port, and an exhaust port, and is configured to form a storage space for storing the driving portion and an airflow path leading from the intake port to the exhaust port through the storage space. The blowing portion is configured to generate an airflow in the airflow path toward the exhaust port. The intake port is configured to open in a direction having a vertical downward component in a first state in which the power working machine is placed with the bottom surface portion facing a horizontal surface.

公开(公告)号：US20230151844A1

公开(公告)日：2023-05-18

申请号：US17917050

申请日：2021-04-06

Applicant: YAMABIKO CORPORATION

Inventor： Kunimune KAWAMURA

IPC: F16C3/22

CPC classification number: F16C3/22

Abstract: The rotary body according to the present invention is made of resin and attached to a crankshaft. The rotary body has an outside plate element and an inside plate element which are attached to an outside surface and an inside surface of an arm portion of the crankshaft, respectively, and a pair of filler elements disposed between the outside plate element and the inside plate element and on both sides of the arm portion. The outside plate element and the pair of the filler elements are coupled to each other, and the pair of the filler elements and the inside plate element are coupled to each other.