Flaring tool

Abstract

A flaring tool includes a motor, a main shaft, a cone, a clutch mechanism, a detection device, and a control device. The main shaft is operably coupled to the motor, and configured to move forward along a first axis while rotating around the first axis when the motor is rotated in a forward direction. The cone is eccentrically supported at a front end portion of the main shaft to be rotatable around a second axis that is different from the first axis. The clutch mechanism is configured to be actuated in response to a forward movement of the main shaft being obstructed due to the cone abutting an end portion of a pipe. The detection device is configured to detect the actuation of the clutch mechanism. The control device is configured to control the rotation of the motor based on a detection result of the detection device.

1 . A flaring tool comprising:
 a motor that is rotatable in a forward direction and a reverse direction;   a main shaft that is (i) operably coupled to the motor, and (ii) configured to move forward along a first axis, which defines a front-rear direction of the flaring tool, while rotating around the first axis when the motor is rotated in the forward direction;   a cone that is (i) eccentrically supported at a front end portion of the main shaft to be rotatable around a second axis that is different from the first axis, and (ii) configured to form a flare in an end portion of a pipe;   a clutch mechanism that is configured to be actuated in response to a forward movement of the main shaft being obstructed due to the cone abutting the end portion of the pipe;   a detection device that is configured to detect actuation of the clutch mechanism; and   a control device that is configured to control rotation of the motor based on a detection result of the detection device.   
     
     
         2 . The flaring tool according to  claim 1 , wherein the control device is configured to stop the rotation of the motor after rotating the motor by a specified rotation amount in the forward direction, in response to the actuation of the clutch mechanism being detected by the detection device. 
     
     
         3 . The flaring tool according to  claim 2 , wherein the specified rotation amount is changeable. 
     
     
         4 . The flaring tool according to  claim 3 , further comprising:
 an operation portion configured to be manually operated by a user, wherein the control device is configured to change the specified rotation amount in response to a manual operation performed on the operation portion by the user.   
     
     
         5 . The flaring tool according to  claim 2 , wherein the control device is configured to move the main shaft rearward by rotating the motor in the reverse direction after stopping the motor. 
     
     
         6 . The flaring tool according to  claim 1 , wherein the motor is a brushless motor. 
     
     
         7 . The flaring tool according to  claim 1 , wherein:
 the clutch mechanism includes a movable clutch member configured to move in response to the forward movement of the main shaft being obstructed, and   the detection device is a Hall sensor configured to detect a magnet attached to the movable clutch member.   
     
     
         8 . The flaring tool according to  claim 7 , wherein the magnet is attached to non-rotating portion of the movable clutch member. 
     
     
         9 . A flaring tool, comprising:
 a motor that is rotatable in a forward direction and a reverse direction;   a main shaft that is (i) operably coupled to the motor, and (ii) configured to move forward along a first axis, which defines a front-rear direction of the flaring tool, while rotating around the first axis when the motor is rotated in the forward direction;   a cone that is (i) eccentrically supported at a front end portion of the main shaft to be rotatable around a second axis that is different from the first axis, and (ii) configured to form a flare in an end portion of a pipe;   a detection device that is configured to detect forming of the flare by the cone; and   a control device that is configured to control rotation of the motor, wherein   the control device controls the rotation of the motor such that the main shaft rotates by a specified rotation amount at substantially the same position in the front-rear direction and stops rotation thereafter, in response to the forming of the flare being detected by the detection device.   
     
     
         10 . The flaring tool according to  claim 9 , wherein the specified rotation amount is changeable. 
     
     
         11 . The flaring tool according to  claim 10 , further comprising:
 an operation portion configured to be manually operated by a user, wherein   the control device is configured to change the specified rotation amount in response to a manual operation performed on the operation portion by the user.   
     
     
         12 . The flaring tool according to  claim 9 , wherein the control device is configured to move the main shaft rearward by rotating the motor in the reverse direction after stopping the motor. 
     
     
         13 . The flaring tool according to  claim 9 , wherein the motor is a brushless motor.