Braking device for the boom of a sail boat

Abstract

The invention relates to a braking device ( 4 ) for braking the boom of a sail boat, comprising a body ( 12 ) with fixation means ( 5 ) mainly to the boom or a control rope, and means for braking a main rope ( 6 ) having its ends connected or guided at two points on both sides of the central longitudinal axis of the sail boat, characterised in that the braking means include at least a first passage opening ( 14, 15, 16 ) formed in the body ( 12 ) for a loop ( 20 ) of the main rope ( 6 ), and a second opening ( 18 ) formed in the body ( 12 ), essentially parallel with the first opening ( 14, 15, 16 ) and inside which protrudes a member ( 19 ) for retaining the loop ( 20 ) that passes around it.

1 . A braking device for a boom of a sail boat, comprising a body equipped with means of attachment, and with means of braking a main rope the ends of which are fixed or guided at two points positioned one on each side of a longitudinal central axis of the sail boat, wherein braking means comprise at least one first passage opening for a loop of the main rope, which opening is created in the body, and a second opening created in the body, substantially parallel to the first opening and into which there projects an element intended to retain the loop by passing the loop around it. 
   
   
       2 . The device as claimed in  claim 1 , wherein the projecting element consists of a finger projecting toward an inside of the second opening, on an opposite side to the first opening, a length of the finger being shorter than a length of the second opening along an axis of the projecting element. 
   
   
       3 . The braking device as claimed in  claim 1 , wherein the body comprises at least two passage openings for the loop of the main rope, these being substantially mutually parallel. 
   
   
       4 . The device as claimed in  claim 3 , wherein the body comprises three passage openings for the loop of the main rope. 
   
   
       5 . The device as claimed in  claim 1 , wherein the body is of flat elongate shape, the passage openings for the loop of the main rope being offset from one another along a longitudinal central axis of the body and centered on this axis. 
   
   
       6 . The device as claimed in  claim 5 , wherein the passage opening is of oblong shape, an axis defined by the opening being substantially perpendicular to the longitudinal central axis of the body. 
   
   
       7 . The device as claimed in  claim 5 , wherein the means of attachment are positioned at one end of the body and centered on the longitudinal central axis thereof. 
   
   
       8 . The device as claimed in  claim 7 , wherein the second opening is situated toward an end of the body that comprises the means of attachment. 
   
   
       9 . A method of using the braking device as claimed in  claim 1 , comprising:
 forming a loop with the main rope,   slipping the loop into at least one passage opening of the body,   slipping the loop leading out of the passage opening around the projecting element.   
   
   
       10 . The method as claimed in  claim 9 , wherein, between the second and third steps, the loop leading out of the passage opening is slipped into the second opening and then back into the passage opening.