Linkage Rod for a Vertical Window Blind Transmission Seat

Abstract

A linkage rod for a vertical window blind transmission seat comprises a clamping groove used to engage with a notch located at one side of the transmission seat, a blocking head formed at a front end of the linkage rod, an inward concave edge formed at one side of the linkage rod, a flange block formed on a top of the linkage rod, and a stopping block formed on a top of the linkage rod. After the linkage rod is placed on a linkage sheet by utilizing the inward concave edge to pass through the inserted sheet, the flange block is made to force the inserted sheet to elastically deform upwards, so as to be pulled out, thus making the flange block and the stopping block be locked at the front and back ends of the inserted sheet respectively for realizing a fixed connection of the transmission seat with the movable seat.

1 . A linkage rod for a vertical window blind transmission seat comprising:
 a clamping groove used to engage with a notch located at one side of the transmission seat;   a blocking head formed at a front end of the linkage rod;   an inward concave edge formed at one side of the linkage rod and located behind the clamping groove;   a flange block formed on a top of the linkage rod; and   a stopping block formed on the top of the linkage rod;   the flange block and the stopping block are located behind the clamping groove for engaging with an inserted sheet of a movable seat, by such arrangements, after the linkage rod is placed on a linkage sheet by the inward concave edge with the inserted sheet, the flange block is made to force the inserted sheet to elastically deform upwards, so as to be pulled out, thus making the flange block and the stopping block be locked at front and back ends of the inserted sheet respectively to achieve a fixed connection of the transmission seat with the movable seat.   
   
   
       2 . The linkage rod for a vertical window blind transmission seat as claimed in  claim 1 , wherein one side of the linkage rod is extended to form an abutting member to abut against the notch, so as to avoid an occurrence of a gap for securing the linkage rod. 
   
   
       3 . The linkage rod for a vertical window blind transmission seat as claimed in  claim 1 , wherein the notch is protruded an abutting member to abut against the linkage rod, so as to avoid an occurrence of a gap for securing the linkage rod. 
   
   
       4 . The linkage rod for a vertical window blind transmission seat as claimed in  claim 1 , wherein the blocking head is formed a slot for offering an elastic deformation function. 
   
   
       5 . The linkage rod for a vertical window blind transmission seat as claimed in  claim 1 , wherein the linkage rod is disposed with a reinforcing rib.