Patents by Inventor Haishen Xu
Haishen Xu 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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Publication number: 20230037664Abstract: A rear-moving, self-propelled working machine includes a main machine and a handle device. The main machine includes a moving assembly and a motor for driving the moving assembly. The handle device is connected to the main machine and includes an operation member, a connecting rod assembly, a housing, a sensing device, and a trigger assembly. The operation member includes a grip for a user to hold. The connecting rod assembly includes a first connecting rod connected to the main machine. The sensing device is used for sensing a thrust applied to the handle device to drive the rear-moving, self-propelled working machine. The trigger assembly is capable of applying a force to the sensing device when the grip receives the thrust. The trigger assembly is connected to the connecting rod assembly, and the sensing device is connected to the operation member.Type: ApplicationFiled: October 24, 2022Publication date: February 9, 2023Inventors: Ronggen Zhu, Yufei Ren, Dezhong Yang, Yang Li, Haishen Xu, Rui Zhang
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Publication number: 20220361401Abstract: A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.Type: ApplicationFiled: July 21, 2022Publication date: November 17, 2022Inventors: Yufei Ren, Yang Li, Ronggen Zhu, Haishen Xu, Rui Zhang
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Publication number: 20220346310Abstract: A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.Type: ApplicationFiled: July 12, 2022Publication date: November 3, 2022Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
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Publication number: 20220330480Abstract: A mower includes a main body having an electric motor configured to drive a mowing member, a pair of front wheels, and a pair of rear wheels. A supporting portion is associated with the main body and a handle is connected to the main body and rotatable between a first position and a second position. The handle comprises an operation assembly operable by a user to control the electric motor. A controller prevents the electric motor from being activated by a user operation of the operation assembly when the mower is in a first state in which the supporting portion and the pair of rear wheels are used to support the main body on a supporting surface with the handle in the first position.Type: ApplicationFiled: June 30, 2022Publication date: October 20, 2022Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
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Publication number: 20220279715Abstract: A lawn mower includes a blade assembly configured to perform a cutting function. The blade assembly includes an upper blade mounted about a blade rotation axis and an upper blade proximal portion being substantially flat and including a first cutting edge. A lower blade is mounted in overlap with the upper blade about the blade rotation axis. The lower blade includes a lower blade proximal portion positioned outward from the lower blade mounting portion in a radial direction, a lower blade end portion positioned outward from the lower blade proximal portion and below the lower blade proximal portion, and a second cutting edge. A lower blade falling portion transitions from the lower blade proximal portion to the lower blade end portion.Type: ApplicationFiled: May 26, 2022Publication date: September 8, 2022Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
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Publication number: 20220183227Abstract: A cutting blade is capable of being driven to rotate around a first axis. The cutting blade includes cutting portions comprising cutting edges for cutting and extension portions closer to the first axis relative to the cutting portions. Each of the extension portions comprises an upper surface and a lower surface, at least part of the upper surface is a part of a side surface of a first cone with the first axis as an axis, and at least part of the lower surface is a part of a side surface of a second cone with the first axis as an axis.Type: ApplicationFiled: November 24, 2021Publication date: June 16, 2022Inventor: Haishen Xu
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Publication number: 20220132732Abstract: A walk-behind self-propelled working machine includes a main body, an operation switch, and a handle device. The main body includes a moving assembly and a drive motor. The operation switch is connected to the drive motor. The handle device is connected to the main body and includes an operation member, a connecting rod, and a sensing device. The operation member includes a gripping portion for a user to hold. The connecting rod is connected to the main body. The sensing device is configured to sense a thrust that is applied to the handle device to drive the walk-behind self-propelled working machine and further includes a pressure sensor and a pressing member. When the gripping portion receives the thrust, the pressing member applies a force along a preset straight line to the pressure sensor to drive the pressure sensor to deform.Type: ApplicationFiled: January 14, 2022Publication date: May 5, 2022Inventors: Yufei Ren, Yang Li, Ronggen Zhu, Haishen Xu, Rui Zhang
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Publication number: 20220124982Abstract: A gardening tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.Type: ApplicationFiled: January 6, 2022Publication date: April 28, 2022Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
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Publication number: 20220124976Abstract: A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion configured to cut grass and a second cutting portion configured to cut grass. In the direction parallel to the rotation axis, the second cutting portion is located below the first cutting portion. The battery pack includes a battery pack housing and battery cells provided in the battery pack housing.Type: ApplicationFiled: January 11, 2022Publication date: April 28, 2022Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
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Publication number: 20220124977Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.Type: ApplicationFiled: January 6, 2022Publication date: April 28, 2022Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
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Patent number: 11252867Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.Type: GrantFiled: December 20, 2019Date of Patent: February 22, 2022Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
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Patent number: 11246262Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.Type: GrantFiled: March 23, 2021Date of Patent: February 15, 2022Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
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Patent number: 11246260Abstract: A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion configured to cut grass and a second cutting portion configured to cut grass. In the direction parallel to the rotation axis, the second cutting portion is located below the first cutting portion. The battery pack includes a battery pack housing and battery cells provided in the battery pack housing.Type: GrantFiled: April 21, 2021Date of Patent: February 15, 2022Assignee: Nanjing Chervon Industry Co., Ltd.Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
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Patent number: 11122737Abstract: A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion configured to cut grass and a second cutting portion configured to cut grass. In the direction parallel to the rotation axis, the second cutting portion is located below the first cutting portion. The battery pack includes a battery pack housing and battery cells provided in the battery pack housing.Type: GrantFiled: February 1, 2021Date of Patent: September 21, 2021Assignee: Nanjing Chervon Industry Co., Ltd.Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
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Publication number: 20210235620Abstract: A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion configured to cut grass and a second cutting portion configured to cut grass. In the direction parallel to the rotation axis, the second cutting portion is located below the first cutting portion. The battery pack includes a battery pack housing and battery cells provided in the battery pack housing.Type: ApplicationFiled: April 21, 2021Publication date: August 5, 2021Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
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Publication number: 20210204477Abstract: A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.Type: ApplicationFiled: March 23, 2021Publication date: July 8, 2021Inventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
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Publication number: 20210168999Abstract: A robotic lawn mower includes a mowing system, a housing, a working assembly and an energy source device. The mowing system includes a cutting assembly, a driving mechanism, and a height adjusting mechanism. The cutting assembly includes a mowing member for cutting the grass and a mounting shaft for mounting the mowing member. The mounting shaft is capable of rotating about a first axis relative to the housing. The driving mechanism includes a driving shaft for driving the cutting assembly to rotate. The height adjusting mechanism is used to adjust the movement of the cutting assembly along the first axis to achieve different cutting heights of the mowing member. When the height adjusting mechanism adjusts the cutting assembly to move along the first axis, the mounting shaft moves relative to the driving shaft along the first axis.Type: ApplicationFiled: December 7, 2020Publication date: June 10, 2021Inventor: Haishen Xu
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Publication number: 20210153432Abstract: A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion configured to cut grass and a second cutting portion configured to cut grass. In the direction parallel to the rotation axis, the second cutting portion is located below the first cutting portion. The battery pack includes a battery pack housing and battery cells provided in the battery pack housing.Type: ApplicationFiled: February 1, 2021Publication date: May 27, 2021Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang
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Publication number: 20210112711Abstract: A hand push lawn mower includes a body including a cutting blade and an operating device for a user to operate and connected to the body. The body includes a deck, a motor, a height adjustment assembly and a grass baffle. The motor is configured to drive the cutting blade to rotate. The height adjustment assembly is used to adjust the deck to move up and down. The grass baffle is configured to prevent grass clippings from splashing towards the back of the hand push lawn mower. When the height adjustment assembly adjusts the height of the deck, a displacement of the grass baffle in a vertical direction is less than a displacement of the deck in the vertical direction.Type: ApplicationFiled: December 28, 2020Publication date: April 22, 2021Inventors: Fangjie Nie, Toshinari Yamaoka, Haishen Xu, Qingsong Sun, Dezhong Yang, Chao Xian
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Publication number: 20200404840Abstract: A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion configured to cut grass and a second cutting portion configured to cut grass. In the direction parallel to the rotation axis, the second cutting portion is located under the first cutting portion. The battery pack includes a battery pack housing and battery cells provided in the battery pack housing.Type: ApplicationFiled: June 26, 2020Publication date: December 31, 2020Inventors: Haishen Xu, Toshinari Yamaoka, Jian Yang