# US 11,027,867 B2 · Tying machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,867 B2 - Document ID: US11027867B2 - Status: Granted - Kind: B2 - Application number: 16/222,076 - Filed: 2018-12-17 - Published: 2019-06-27 - Granted: 2021-06-08 - Earliest claimed: 2017-12-27 - Assignees: Makita Corporation - Applicants: Makita Corporation - Inventors: Hirokatsu Yamamoto; Kunihisa Shima - Web page: https://patentgrep.com/patent/US11027867B2 ## CPC - B65B 13/22: Means for controlling tension of binding means - B65B 13/187: {Motor means} - B65B 13/285: {Hand tools} - E04G 21/123: {Wire twisting tools (bundling articles by twisting, e.g. wire B65B13/28; bundling rods, sticks, or like elongated objects with, e.g. wire B65B27/10; tying devices for hops, vines or trees with, e.g. wire A01G17/08)} - B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00) - E04G: SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS ## Abstract A tying machine may include a twisting mechanism configured to twist a tying string. The twisting mechanism may include a twisting motor. The tying machine may be configured to obtain torque acting on the twisting motor as a twisting torque value, and stop the twisting motor when a predetermined tying completion condition is satisfied. The tying completion condition may include that an elapsed time since a rise in the twisting torque value was detected reaches a first predetermined time. ## Claims ### Claim 1 A tying machine comprising: a twisting mechanism configured to twist a tying string, wherein the twisting mechanism includes a twisting motor; and a processor that is configured to: obtain torque acting on the twisting motor as a twisting torque value; detect a rise of the twisting torque value; and stop the twisting motor when a predetermined tying completion condition is satisfied, wherein the tying completion condition includes when an elapsed time reaches a first predetermined time after the rise in the twisting torque value was detected, and when a predetermined cancellation condition is satisfied after the rise in the twisting torque value has been detected, the processor is configured to cancel detection of the rise in the twisting torque value and continue twisting of the tying string without stopping the twisting motor. ### Claim 2 (depends on 1) The tying machine according to claim 1, wherein the tying completion condition further includes that the twisting torque value reaches a predetermined torque threshold. ### Claim 3 (depends on 1) The tying machine according to claim 1, wherein the processor is configured not to stop the twisting motor even when the tying completion condition is satisfied, in a case where a number of times the twisting motor rotated since the twisting motor started rotating has not reached a predetermined rotation number threshold, and the processor is configured to stop the twisting motor in a case where the tying completion condition is satisfied and the number of times the twisting motor rotated since the twisting motor started rotating reaches the predetermined rotation number threshold. ### Claim 4 A tying machine comprising: a twisting mechanism configured to twist a tying string, wherein the twisting mechanism includes a twisting motor; and a processor that is configured to: obtain torque acting on the twisting motor as a twisting torque value; calculate a rate limiter value that moderately follows the twisting torque value in a range between a maximum increase value and a maximum decrease value based on the twisting torque value; detect a rise of the twisting torque value; and stop the twisting motor when a predetermined tying completion condition is satisfied, wherein the tying completion condition includes when an elapsed time reaches a first predetermined time after the rise in the twisting torque value was detected, and wherein the detection of the rise in the twisting torque value includes detection of change from a state in which the twisting torque value is equal to the rate limiter value to a state in which the twisting torque value is higher than the rate limiter value. ### Claim 5 (depends on 4) The tying machine according to claim 4, wherein when a predetermined cancellation condition is satisfied after the rise in the twisting torque value has been detected, the processor is configured to cancel detection of the rise in the twisting torque value, and the cancellation condition includes that the rate limiter value becomes equal to the twisting torque value again. ### Claim 6 (depends on 4) The tying machine according to claim 4, wherein in a case where the rise in the twisting torque value is not detected and a fall in the twisting torque value is detected, the processor is configured to stop the twisting motor when an elapsed time since the fall in the twisting torque value was detected reaches a second predetermined time. ### Claim 7 (depends on 6) The tying machine according to claim 6, wherein the detection of the fall in the twisting torque value includes detection of change from a state in which the twisting torque value is equal to the rate limiter value to a state in which the twisting torque value is lower than the rate limiter value. ### Claim 8 (depends on 4) The tying machine according to claim 4, wherein in a case where the rise in the twisting torque value is not detected and a fall in the twisting torque value is detected, the processor is configured to stop the twisting motor when a number of times the twisting motor rotated since the fall in the twisting torque value was detected reaches a second predetermined number of times of rotations. ### Claim 9 (depends on 8) The tying machine according to claim 8, wherein the detection of the fall in the twisting torque value includes detection of change from a state in which the twisting torque value is equal to the rate limiter value to a state in which the twisting torque value is lower than the rate limiter value. ### Claim 10 A tying machine comprising: a twisting mechanism configured to twist a tying string, wherein the twisting mechanism includes a twisting motor; and a processor that is configured to: obtain torque acting on the twisting motor as a twisting torque value, detect a rise of the twisting torque value, and stop the twisting motor when a predetermined tying completion condition is satisfied, and wherein the tying completion condition includes when a number of times of rotation of the twisting motor reaches a first predetermined number of times of rotation after the rise in the twisting torque value was detected, and wherein when a predetermined cancellation condition is satisfied after the rise in the twisting torque value has been detected, the processor is configured to cancel detection of the rise in the twisting torque value and continue twisting of the tying string without stopping the twisting motor. ### Claim 11 (depends on 10) The tying machine according to claim 10, wherein the tying completion condition further includes that the twisting torque value reaches a predetermined torque threshold. ### Claim 12 (depends on 10) The tying machine according to claim 10, wherein the processor is configured not to stop the twisting motor even when the tying completion condition is satisfied, in a case where a number of times the twisting motor rotated since the twisting motor started rotating has not reached a predetermined rotation number threshold, and the processor is configured to stop the twisting motor in a case where the tying completion condition is satisfied and the number of times the twisting motor rotated since the twisting motor started rotating reaches the predetermined rotation number threshold. ### Claim 13 A tying machine comprising: a twisting mechanism configured to twist a tying string, wherein the twisting mechanism includes a twisting motor; and a processor that is configured to: obtain torque acting on the twisting motor as a twisting torque value, calculate a rate limiter value that moderately follows the twisting torque value in a range between a maximum increase value and a maximum decrease value based on the twisting torque value; detect a rise of the twisting torque value, and stop the twisting motor when a predetermined tying completion condition is satisfied, wherein the tying completion condition includes when a number of times of rotation of the twisting motor reaches a first predetermined number of times of rotation after the rise in the twisting torque value was detected, and wherein the detection of the rise in the twisting torque value includes detection of change from a state in which the twisting torque value is equal to the rate limiter value to a state in which the twisting torque value is higher than the rate limiter value. ### Claim 14 (depends on 13) The tying machine according to claim 13, wherein when a predetermined cancellation condition is satisfied after the rise in the twisting torque value has been detected, the processor is configured to cancel detection of the rise in the twisting torque value, and the cancellation condition includes that the rate limiter value becomes equal to the twisting torque value again. ### Claim 15 (depends on 13) The tying machine according to claim 13, wherein in a case where the rise in the twisting torque value is not detected and a fall in the twisting torque value is detected, the processor is configured to stop the twisting motor when an elapsed time since the fall in the twisting torque value was detected reaches a second predetermined time. ### Claim 16 (depends on 15) The tying machine according to claim 15, wherein the detection of the fall in the twisting torque value includes detection of change from a state in which the twisting torque value is equal to the rate limiter value to a state in which the twisting torque value is lower than the rate limiter value. ### Claim 17 (depends on 13) The tying machine according to claim 13, wherein in a case where the rise in the twisting torque value is not detected and a fall in the twisting torque value is detected, the processor is configured to stop the twisting motor when a number of times the twisting motor rotated since the fall in the twisting torque value was detected reaches a second predetermined number of times of rotations. ### Claim 18 (depends on 17) The tying machine according to claim 17, wherein the detection of the fall in the twisting torque value includes detection of change from a state in which the twisting torque value is equal to the rate limiter value to a state in which the twisting torque value is lower than the rate limiter value.