Patents Assigned to Chervon (HK) Limited
-
Patent number: 11913184Abstract: A snow thrower includes a motor, an auger driven by the motor to rotate, a handle device for a user to operate, an auger housing for containing the auger and a frame for connecting the handle device and the auger housing. The auger housing is made of at least two different materials.Type: GrantFiled: April 27, 2021Date of Patent: February 27, 2024Assignee: Chervon (HK) LimitedInventors: Xiangqing Fu, Feng Yuan, Keqiong Zhong, Qian Liu, Li Li, Toshinari Yamaoka, Fangjie Nie, Liang Chen
-
Patent number: 11818979Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.Type: GrantFiled: September 20, 2019Date of Patent: November 21, 2023Assignees: Nanjing Chervon Industry Co., Ltd., Chervon (HK) LimitedInventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
-
Patent number: 11606900Abstract: 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: GrantFiled: October 31, 2019Date of Patent: March 21, 2023Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Fangjie Nie, Haishen Xu, Xiandian Shao
-
Patent number: 11419262Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding element, the spool is used to wind a trimming line, and the line holding element is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding element to make the spool and the line holding element rotate relatively so that the trimming line is wound on the spool automatically.Type: GrantFiled: October 2, 2020Date of Patent: August 23, 2022Assignees: Nanjing Chervon Industry Co., Ltd., Chervon (HK) LimitedInventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
-
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
-
Patent number: 11248626Abstract: A handheld blower includes a fan for generating an air flow, a motor for driving the fan to rotate about a central axis, a battery pack for supplying power to the motor, an air duct portion including an air duct, the air duct extending long the central axis, a coupling portion for coupling with the battery pack, and a connection portion for connecting the air duct portion with the coupling portion. The fan is received in the air duct. The air duct includes an air duct inlet and an air duct outlet which are respectively located at the two ends of the air duct. The air duct inlet is located between the air duct outlet and the coupling portion. The connection portion is provided with an air intake space located between the air duct inlet and the coupling portion. The air intake space is opened in a radial direction of the central axis.Type: GrantFiled: November 25, 2019Date of Patent: February 15, 2022Assignee: Chervon (HK) LimitedInventors: Xiandian Shao, Toshinari Yamaoka, Fangjie Nie, Jianpeng Guo
-
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
-
Patent number: 11219159Abstract: A grass trimmer includes a cutting head for mounting a cutting member, a drive head having a output shaft for driving the cutting head to rotate, and an anti-winding member for preventing the output shaft from being wound to by grass. The drive head includes a drive device to drive the output shaft and a head housing for accommodating the drive device. The output shaft connects to the cutting head and passes through the anti-winding member and the anti-winding member is mounted to the cutting head so as to rotate with the cutting head and is disposed between the cutting head and the head housing so as to fill the space between the cutting head and the head housing.Type: GrantFiled: November 25, 2019Date of Patent: January 11, 2022Assignee: Chervon (HK) LimitedInventors: Feng Yuan, Ming Peng, Jianpeng Guo, Zichun Tang
-
Patent number: 11089724Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.Type: GrantFiled: October 2, 2019Date of Patent: August 17, 2021Assignees: Nanjing Chervon Industry Co., LTD., Chervon (HK) LimitedInventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
-
Patent number: 11015313Abstract: A snow thrower includes a motor, an auger driven by the motor to rotate, a handle device for a user to operate, an auger housing for containing the auger and a frame for connecting the handle device and the auger housing. The auger housing is made of at least two different materials.Type: GrantFiled: June 26, 2020Date of Patent: May 25, 2021Assignee: Chervon (HK) LimitedInventors: Xiangqing Fu, Feng Yuan, Keqiong Zhong, Qian Liu, Li Li, Toshinari Yamaoka, Fangjie Nie, Liang Chen
-
Patent number: 10964990Abstract: An electrical combination includes a battery pack and a power tool. The battery pack includes two battery pack connectors which are connected with the same electrode of a battery of the battery pack. A circuit of one battery pack connector has a resistance greater than that in another circuit of another battery pack connector. The power tool includes corresponding tool connectors. When the battery pack is connected with the power tool, the power tool is supplied with a small current by the battery pack firstly, and then is supplied with a large current, so the electric spark is eliminated when the terminals of the battery pack contact with the terminals of the power tool.Type: GrantFiled: September 6, 2019Date of Patent: March 30, 2021Assignee: Chervon (HK) LimitedInventors: Dezhong Yang, Jifeng Feng
-
Patent number: 10961676Abstract: A snow thrower includes a motor, an auger driven by the motor to rotate, a handle device for a user to operate, an auger housing for containing the auger and a frame for connecting the handle device and the auger housing. The auger housing is made of at least two different materials.Type: GrantFiled: August 28, 2020Date of Patent: March 30, 2021Assignee: Chervon (HK) LimitedInventors: Xiangqing Fu, Feng Yuan, Keqiong Zhong, Qian Liu, Li Li, Toshinari Yamaoka, Fangjie Nie, Liang Chen
-
Patent number: 10903730Abstract: A power tool includes a motor, a first power source access circuit, a first drive circuit, a second power source access circuit and a second drive circuit. The motor includes a rotor, a stator, a plurality of first-type windings and a plurality of second-type windings. The rotor is configured to rotate about a central axis. The stator includes a ring-shaped yoke portion, and a plurality of teeth. The plurality of first-type windings are configured to be wound around part of the plurality of teeth and the plurality of second-type windings are configured to be wound around other part of the plurality of teeth. The first power source access circuit is configured to access a first power source with a first voltage. The first drive circuit includes a plurality of first-type electronic switches connected between the plurality of first-type windings and the first power source access circuit. The second power source access circuit is configured to access a second power source with a second voltage.Type: GrantFiled: January 18, 2019Date of Patent: January 26, 2021Assignees: Nanjing Chervon Industry Co., Ltd., Chervon (HK) LimitedInventors: Qian Xu, Shibo Chen
-
Patent number: 10849268Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation, and an operating device for use in controlling the driving device. The trimming head includes a spool and a line holding element formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding element to make the spool and the line holding element rotate relatively so that a trimming line is wound on the spool automatically.Type: GrantFiled: March 25, 2019Date of Patent: December 1, 2020Assignees: Nanjing Chervon Industry Co., Ltd., CHERVON (HK) LIMITEDInventors: Jianpeng Guo, Maohui Li, Fangjie Nie, Toshinari Yamaoka
-
Patent number: 10774487Abstract: A handheld blower includes a housing, the housing including an air inlet and a duct assembly, the duct assembly including a duct, a motor and a fan mounted in the duct, a battery, a handle, and a blowpipe which defines a central axis. Along the direction of the central axis, the area of the flowing cross-section of an air passage at the rear end of the fan adjacent to the air inlet is larger than that of the flowing cross-section of an air outlet of the blowpipe, and the rate between the area of the flow cross-section of the air outlet of the blowpipe and the area of the flow cross-section of the flow-through area at the position of the fan is greater than or equal to 0.8.Type: GrantFiled: September 13, 2017Date of Patent: September 15, 2020Assignee: Chervon (HK) LimitedInventors: Toshinari Yamaoka, Jianpeng Guo, Fangjie Nie, Xiandian Shao
-
Patent number: 10760230Abstract: A snow thrower includes a motor, an auger driven by the motor to rotate, a handle device for a user to operate, an auger housing for containing the auger and a frame for connecting the handle device and the auger housing. The auger housing is made of at least two different materials.Type: GrantFiled: September 3, 2019Date of Patent: September 1, 2020Assignee: Chervon (HK) LimitedInventors: Xiangqing Fu, Feng Yuan, Keqiong Zhong, Qian Liu, Li Li, Toshinari Yamaoka, Fangjie Nie, Liang Chen
-
Patent number: 10753364Abstract: An assembly including a wearable blower having a fan, a motor, an air duct having a duct housing thereof, a handle attached to the duct housing, and a hanger disposed on the duct housing. The hanger has an attachment part attached to the duct housing and adjacent to the handle and a hanger part connected to the attachment part for holding an accessory attached to the blower. The hanger part rotates with respect to the duct housing at a first hanging position whereat the hanger part is unfolded with an opening mouth for holding the accessory of the blower and the hanger part rotates with respect to the duct housing at a second folded position. Thus, the arrangement of the hanger can help the user to hold the accessory of the blower at the work states.Type: GrantFiled: June 22, 2017Date of Patent: August 25, 2020Assignee: CHERVON (HK) LIMITEDInventors: Toshinari Yamaoka, Xiandian Shao
-
Patent number: 10724926Abstract: A power tool system has a power tool including an electrical device, a power device for powering the electrical device, a position or target detection system for detecting a position of the power tool and/or the power device, a source-based transceiver for at least transmitting data corresponding to the position detected by the position detection system, and a data retrieval and/or process equipment for selectively receiving data from the source-based transceiver at a position around the power tool and/or a position remotely removed away from the power tool.Type: GrantFiled: March 21, 2017Date of Patent: July 28, 2020Assignee: CHERVON (HK) LIMITEDInventors: Wu Chen, Guigong Ni, Tianshi Yuan, Toshinari Yamaoka
-
Patent number: 10639781Abstract: A power tool includes an output shaft for outputting torque, a motor for driving the output shaft to rotate about a first axis, a transmission mechanism for transmitting an output of the motor to the output shaft, a gear box for containing the transmission mechanism, a sleeve for a user to operate so as to adjust a maximum output torque transmitted from the motor to the output shaft, a locating element for limiting an axial position of the sleeve, fastening elements for fixing the locating element to the gear box, and a bearing for supporting the output shaft. The locating element is formed with a containing groove for containing the bearing and locating holes formed on a bottom of the containing groove. The fastening elements are at least partially embedded in the locating holes.Type: GrantFiled: May 23, 2017Date of Patent: May 5, 2020Assignee: Chervon (HK) LimitedInventor: Guoxing Mao
-
Publication number: 20200029497Abstract: A grass trimmer includes a trimming head, a driving device for driving the trimming head to rotate so as to cut vegetation and an operating device for a user to operate so as to control the driving device. The trimming head includes a spool and a line holding member, the spool is used to wind a cutting line, and the line holding member is formed with a line holding structure. The driving device includes a motor. The grass trimmer has an auto-winding mode. In the auto-winding mode, the motor drives at least one of the spool and the line holding member to make the spool and the line holding member rotate relatively so that the cutting line is wound on the spool automatically.Type: ApplicationFiled: October 2, 2019Publication date: January 30, 2020Applicants: Nanjing Chervon Industry Co., Ltd., Chervon (HK) LimitedInventors: Jianpeng GUO, Maohui LI, Fangjie NIE, Toshinari YAMAOKA