Retractable lead

Abstract

A retractable lead of the present invention includes a brake trigger provided in the vicinity of the front surface of a body casing that contains a reel below a draw-out port. The brake trigger is attached in a state of being able to be pushed in the body casing in the direction opposite to the direction in which the lead is drawn out (backward) and being biased in the direction in which the brake trigger is pushed back. If the brake trigger is pushed in, an engaging claw portion protruding from the brake trigger engages with an engaging tooth portion formed on a flange of the reel, thereby restricting rotation of the reel in the draw-out direction.

1 . A retractable lead in which a reel for winding a lead is contained in a body casing in a state where the reel is rotatable and a rotating force in a winding direction is applied to the reel, the lead wound by the reel being drawn out forward from a draw-out port formed in a front portion of the body casing,
 wherein a brake trigger is provided in the vicinity of a front surface of the body casing below the draw-out port, and the brake trigger is attached to the body casing in a state of being able to be pushed in the body casing in a direction opposite to a direction in which the lead is drawn out and being biased in a direction in which the brake trigger is pushed back, and if the brake trigger is pushed in, the brake trigger engages with the reel, and rotation of the reel in the draw-out direction is restricted.   
     
     
         2 . The retractable lead according to  claim 1 ,
 wherein the brake trigger is axially attached so as to be swingable backward and forward at a position in the vicinity of the draw-out port in the body casing via a support shaft provided parallel to a rotation axis of the reel.   
     
     
         3 . The retractable lead according to  claim 1 ,
 wherein the brake trigger includes an engaging claw portion protruding toward the reel from a rear edge portion of the brake trigger that faces the reel, an engaging tooth portion is formed on an external surface of a flange projecting from either edge of the reel, and rotation of the reel is constrained by the engaging claw portion engaging with the engaging tooth portion of the reel by an operation of pushing in the brake trigger.   
     
     
         4 . The retractable lead according to  claim 1 ,
 wherein a lock lever is provided on an upper surface of the body casing at a rear position relative to the draw-out port, and the lock lever is attached so as to be slidable backward and forward along the upper surface of the body casing, and if the lock lever is caused to slide forward in a state where the brake trigger is pushed in the body casing, the lock lever engages with the brake trigger, and the brake trigger is locked in a state where rotation of the reel is restricted.   
     
     
         5 . The retractable lead according to  claim 4 ,
 wherein the lock lever includes an engaging hook portion protruding toward the brake trigger, a hook receiving portion corresponding to the engaging hook portion is formed at a rear edge portion of the brake trigger, and the brake trigger is constrained in a pushed-in state by the engaging hook portion engaging with the hook receiving portion of the brake trigger by an operation of advancing the lock lever.   
     
     
         6 . A retractable lead in which a reel for winding a lead is contained in a body casing in a state where the reel is rotatable and a rotating force in a winding direction is applied to the reel, the lead wound by the reel being drawn out forward from a draw-out port formed in a front portion of the body casing,
 wherein a handle is provided on a side of the body casing opposite to the draw-out port, a brake trigger is provided at an upper portion of a front surface of the handle with a finger inserting space being formed between the body casing and the handle, and the brake trigger is attached to the handle in a state of being able to be pushed in the handle in a direction opposite to a direction in which the lead is drawn out and being biased in a direction in which the brake trigger is pushed back, and if the brake trigger is pushed in, a brake arm that extends from the brake trigger toward the reel engages with the reel, and rotation of the reel in a draw-out direction is restricted.