Trigger switch

A trigger switch, comprising:

• a trigger that moves from a release position in a pulling direction in response to a pulling operation;
• a shaft member that supports the trigger on one end side;
• a return spring that urges the trigger in a direction opposite to the pulling direction, wherein the return spring is pressed in the pulling direction by movement of the trigger and increases an urging force in accordance with a force of pressing;
• and
• an adjustment member that adjusts the urging force of the return spring at the release position of the trigger,
• wherein the adjustment member is configured to move in conjunction with the movement of the trigger, comprises an abutting part that abuts the return spring, and is capable of adjusting the urging force by adjusting a position of the abutting part at the release position of the trigger,
• wherein the shaft member comprises a holding part that holds the adjustment member, and moves in conjunction with the movement of the trigger and presses the return spring via the abutting part of the adjustment member being held.