Reversible ratcheting power tool with synchronized motor and ratchet control

A reversible ratcheting electric power tool comprising:

• a reversible DC electric motor having an output and first and second motor terminals,
• a source of DC electric power having first and second source terminals,
• a reversible ratchet assembly coupled to the output of the motor and adapted to be coupled to an associated driving device,
• a manually operated reversing mechanism coupled to the ratchet assembly for selectively controlling the ratcheting direction thereof,
• an electric control circuit coupled to the motor and including two direction control switches for respectively controlling forward and reverse directions of operation of the motor normally connecting both of the motor terminals to the first source terminal, and
• switch actuator structure carried by the reversing mechanism for actuating a selected one of the switches to connect the motor across the DC source in either (a) a forward condition with the first motor terminal connected to the second source terminal when the ratchet assembly is set for a forward ratcheting direction, or (b) a reverse condition with the second motor terminal connected to the second source terminal when the ratchet assembly is set for a reverse ratcheting direction,
• the electric control circuit including an on-off switch connected in circuit with the direction control switches and adapted to be connected to the source of electric power,
• each of the direction control switches and the on-off switch being actuable independently of the others.

A reversible ratcheting electric power tool comprising:

• a reversible electric motor having an output and two motor terminals
• a reversible ratchet assembly coupled to the output of the motor and adapted to be coupled to an associated driving device,
• a manually operated reversing mechanism coupled to the ratchet assembly for selectively controlling the ratcheting direction thereof,
• an electric control circuit coupled to the motor and including two direction control switches each having a movable contact and two fixed contacts for controlling forward and reverse directions of operation of the motor,
• the movable contacts being connected to the motor and the fixed contacts being connectable to a source of electric power having two source terminals, and
• two switch actuators carried by the reversing mechanism for respectively actuating the direction control switches substantially simultaneously with selection of the ratcheting direction so that the motor direction is compatible with the ratcheting direction,
• each of the direction control switches having a normal deactuated condition in which the direction control switches are disposed for respectively connecting both of the motor terminals to one of the source terminals,
• each of the direction control switches having an actuated condition in which the direction control switch is disposed for connecting an associated motor terminal to the other of the source terminals,
• the electric control circuit including an on-off switch connected in circuit with the direction control switches and adapted to be connected to the source of electric power,
• each of the direction control switches and the on-off switch being actuatable independently of the others.