# US 12,108,702 B2 · Gardening tool, particularly a mower > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,108,702 B2 - Document ID: US12108702B2 - Status: Granted - Kind: B2 - Application number: 16/824,858 - Filed: 2020-03-20 - Published: 2020-07-09 - Granted: 2024-10-08 - Earliest claimed: 2012-10-15 - Assignees: Chervon (HK) Limited - Applicants: Chervon (HK) Limited - Inventors: Toshinari Yamaoka; Fangjie Nie; Haishen Xu; Xiandian Shao - Web page: https://patentgrep.com/patent/US12108702B2 ## CPC - A01D 34/824: {Handle arrangements} - A01D 34/67: hand-guided by a walking operator - A01D 34/6806: {Driving mechanisms (for the cutters A01D34/76)} - A01D 34/828: {Safety devices} - A01D 69/02: electric - A01D 69/10: Brakes - A01D 2034/6843: {Control levers on the handle of the mower} - A01D 2101/00: Lawn-mowers - A01D: HARVESTING; MOWING ## Abstract 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. ## Claims ### Claim 1 A lawn mower, comprising: a main body comprising a cutting blade and a motor for driving the cutting blade; a plurality of wheels supporting the main body; a handle connected to the main body; and a connecting assembly for connecting the handle to the main body, wherein the handle comprises: a first handle bar comprising a first end close to the main body and a second end away from the main body; a second handle bar comprising a third end close to the main body and a forth end away from the main body; and a gripping portion for a user to grip, wherein the gripping portion is disposed between the first handle bar and the second handle bar, and the gripping portion connects the second end of the first handle bar and the forth end of the second handle bar, wherein the connecting assembly comprises a rotation shaft for rotatably connecting the handle to the main body, and the rotation shaft connects the first end of the first handle bar and the third end of the second handle bar to the main body, and the rotation shaft comprises a fifth end connected to the first end of the first handle bar and a sixth end connected to the third end of the second handle bar, and the rotation shaft extends from the fifth end to the sixth end, and wherein the lawn mower further comprises a single locking mechanism and a single level changing member used to set a plurality of levels and, the single level changing member cooperates with the single locking mechanism so as to fix and adjust a rotating position of the first handle bar, and wherein the single level changing mechanism comprises a locking plate positioned between the first end of the first handle bar and the third end of the second handle bar; the locking plate comprising a mounting notch which the rotation shaft passes through. ### Claim 2 (depends on 1) The lawn mower according to claim 1, wherein the handle drives the rotation shaft to rotate relative to the main body when the user operates the handle to rotate relative the main body. ### Claim 3 (depends on 2) The lawn mower according to claim 2, wherein the single locking mechanism is mounted to the first handle bar. ### Claim 4 (depends on 1) The lawn mower according to claim 1, wherein the single level changing member is mounted to the rotation shaft. ### Claim 5 (depends on 4) The lawn mower according to claim 4, wherein the mounting notch is provided in a lower portion of the locking plate so that the rotation shaft will not be hindered upon rotating. ### Claim 6 (depends on 1) The lawn mower according to claim 1, further comprising a control device capable of preventing the motor from being controlled by an operation assembly and halting the motor when the handle is out of a secure position. ### Claim 7 (depends on 1) The lawn mower according to claim 1, further comprising: a switch for controlling the motor; and a trigger member provided at a location in an axial direction of the rotation shaft corresponding to the switch. ### Claim 8 (depends on 7) The lawn mower according to claim 7, wherein the trigger member rotates to a designated angle to trigger the switch when the handle rotates to a secure position. ### Claim 9 (depends on 1) The lawn mower according to claim 1, further comprising: a switch for controlling the motor, wherein the switch is mounted at the handle; and a trigger member mounted to the main body, wherein the trigger member triggers the switch when the switch rotates to a designated angle with the handle. ### Claim 10 A lawn mower, comprising: a main body comprising a cutting blade and a motor for driving the cutting blade; a plurality of wheels supporting the main body; a handle connected to the main body; and a connecting assembly for connecting the handle to the main body, wherein the handle comprises: a first handle bar comprising a first end close to the main body and a second end away from the main body; a second handle bar comprising a third end close to the main body and a forth end away from the main body; and a gripping portion for a user to grip, wherein the gripping portion is disposed between the first handle bar and the second handle bar, and the gripping portion connects the second end of the first handle bar and the forth end of the second handle bar, wherein the connecting assembly comprises a rotation shaft for rotatably connecting the handle to the main body, and the rotation shaft connects the first end of the first handle bar and the third end of the second handle bar, and the rotation shaft comprises a fifth end connected to the first end of the first handle bar and a sixth end connected to the third end of the second handle bar, and the rotation shaft extends from the fifth end to the sixth end, and wherein the lawn mower further comprises a single locking mechanism capable of locking a rotating position of the first handle bar, and a single level changing mechanism comprising a locking plate positioned between the first end of the first handle bar and the third end of the second handle bar; the locking plate comprising a mounting notch which the rotation shaft passes through. ### Claim 11 (depends on 10) The lawn mower according to claim 10, wherein the handle drives the rotation shaft to rotate relative to the main body when the user operates the handle to rotate relative the main body. ### Claim 12 (depends on 11) The lawn mower according to claim 11, wherein the single locking mechanism is mounted to the first handle bar. ### Claim 13 (depends on 10) The lawn mower according to claim 10, further comprising a control device capable of preventing the motor from being controlled by an operation assembly and halting the motor when the handle is out of a secure position. ### Claim 14 (depends on 10) The lawn mower according to claim 10, further comprising: a switch for controlling the motor; and a trigger member provided at a location in an axial direction of the rotation shaft corresponding to the switch. ### Claim 15 (depends on 14) The lawn mower according to claim 14, wherein the trigger member rotates to a designated angle to trigger the switch when the handle rotates to a secure position. ### Claim 16 (depends on 10) The lawn mower according to claim 10, further comprising: a switch for controlling the motor, wherein the switch is mounted at the handle; and a trigger member provided at the main body, wherein the trigger member triggers the switch when the switch rotates to a designated angle with the handle. ### Claim 17 A lawn mower, comprising: a main body comprising a cutting blade and a motor for driving the cutting blade; a plurality of wheels supporting the main body; a handle connected to the main body; a connecting assembly for connecting the handle to the main body, wherein the handle comprises: a first handle bar comprising a first end close to the main body and a second end away from the main body; a second handle bar comprising a third end close to the main body and a forth end away from the main body; and a gripping portion for a user to grip, wherein the gripping portion is disposed between the first handle bar and the second handle bar, and the gripping portion connects the second end of the first handle bar and the forth end of the second handle bar, and wherein the connecting assembly comprises a rotation shaft for rotatably connecting the handle to the main body, and the rotation shaft connects the first end of the first handle bar and the third end of the second handle bar, and the rotation shaft comprises a fifth end connected to the first end of the first handle bar and a sixth end connected to the third end of the second handle bar, and the rotation shaft extends from the fifth end to the sixth end; a locking mechanism to set a plurality of levels; the locking mechanism coupled to adjust a rotating position of the first handle bar; and a single actuating member coupled to the locking mechanism for actuating the locking mechanism, and a single level changing mechanism comprising a locking plate positioned between the first end of the first handle bar and the third end of the second handle bar; the locking plate comprising a mounting notch which the rotation shaft passes through. ### Claim 18 (depends on 17) The lawn mower according to claim 17, wherein the handle drives the rotation shaft to rotate relative to the main body when the user operates the handle to rotate relative the main body. ### Claim 19 (depends on 17) The lawn mower according to claim 17, wherein the locking mechanism is capable of locking a rotating position of the first handle bar, wherein the second handle bar is not provided with the locking mechanism. ### Claim 20 (depends on 17) The lawn mower according to claim 17, wherein the rotation shaft is rotatably mounted to the main body.