Cord winding device for large-size sunshade

Abstract

Cord winding device for large-size sunshade, including a seat body, a tube body and a cord winder. The seat body is tightly fitted around the tube body. The cord winder is passed through two sides of the seat body and tube body. The cord winder is composed of a locating seat and a crank movably connected with the locating seat. The locating seat is connected with the seat body. An outer circumference of the locating seat is formed with multiple oblique recesses which are serially connected to form an annular face. A locating block outward projects from upper side of the crank. A front end of a bent insertion pin is passed through a through hole of the locating block and fitted with a resilient member. A locking member is disposed on the crank for cooperatively for winding a cord.

What is claimed is:  
     
         1 . Cord winding device for large-size sunshade, comprising a seat body, a tube body and a cord winder, the seat body being tightly fitted around the tube body, the cord winder being passed through two sides of the seat body and tube body, said cord winding device being characterized in that: 
 the seat body is formed with a vertical hollow section in which the tube body is tightly fitted, two sides of the seat body and tube body being respectively formed with through holes through which the cord winder is passed; and    the cord winder is composed of a locating seat and a crank movably connected with the locating seat, the locating seat being formed with a central through hole, an outer circumference of the locating seat being formed with multiple oblique recesses which are serially connected into an annular face, the locating seat being connected with the seat body, a handle being disposed on one side of lower end of the crank, an upper end of the crank having a profile corresponding to the locating seat, a locating block outward projecting from upper side of the crank, a lower side of the locating block being formed with a tapered slope arch face, a rear end of the slope arch face being immediately adjacent to a stop face, the locating block being formed with a socket corresponding to the oblique recess of the locating seat, one side of socket being formed with a through hole, a front end of a bent insertion pin being passed through the through hole and the socket and fitted with a resilient member, the crank cooperating with a locking member for winding the cord.    
     
     
         2 . Cord winding device for large-size sunshade as claimed in  claim 1 , wherein two cavities are respectively formed on two sides of the seat body, a through hole with smaller diameter inward extending from each of the cavities in which the cord winder is mounted.  
     
     
         3 . Cord winding device for large-size sunshade as claimed in  claim 1 , wherein a flange is formed on the outer circumference of the locating seat and the locating seat is inlaid in the cavity of one side of the seat body, the locating seat being formed with multiple thread holes, screws being screwed into the thread holes to lock the locating seat on the seat body.  
     
     
         4 . Cord winding device for large-size sunshade as claimed in  claim 1 , wherein the resilient member fitted with the front end of the bent insertion pin is a spring, the front end of the insertion pin being formed with a notch for connecting with a fastening ring, whereby the insertion pin is retractable and extensible.  
     
     
         5 . Cord winding device for large-size sunshade as claimed in  claim 1 , wherein the upper end of the crank is formed with a rectangular perforation and a rear end of the locking member is formed with a rectangular engaging block fitted in the rectangular perforation for winding the cord.  
     
     
         6 . Cord winding device for large-size sunshade as claimed in  claim 1  or  5 , wherein the locking member is a pin shaft which is sequentially passed through the crank, the locating seat, the seat body and the tube body and inserted into a cap member having a flange and inlaid in the cavity of the other side of the seat body, a front end of the pin shaft being formed with a thread section on which nuts are screwed, a center of the pin shaft being formed with a through hole for the cord to pass therethrough.  
     
     
         7 . Cord winding device for large-size sunshade as claimed in  claim 5 , wherein the perforation of the crank is polygonal and the engaging block of the locking member is also polygonal corresponding to the perforation of the crank for winding the cord.