Safety device for fixing cords of venetian blind

• US 5,473,797 A
• Filed: 11/18/1994
• Issued: 12/12/1995
• Est. Priority Date: 11/18/1994
• Status: Expired due to Fees

• Current Assignee: Te-Tsun Wu
• Original Assignee: Te-Tsun Wu
• Inventors: Wu, Te-Tsun
• Primary Examiner(s): Sakran, Victor N.
• Application Number:
  US08/343,991
• Time in Patent Office: 389 Days
• Field of Search: 24/115 H, 24/115 K, 24/115 R, 24/115 N, 24/115 F, 24/132 WL, 24/712, 24/712.1, 24/712.3, 160/178.2, 403/208, 403/209, 403/210
• US Class Current: 24/115.00H
• CPC Class Codes: E06B 2009/3265 Emergency release to prevent strangulation or excessive load
• CPC Class Codes: E06B 9/326 Details of cords, e.g. buckles, drawing knobs
• CPC Class Codes: F16G 11/048 by moving a surface into the cable
• CPC Class Codes: Y10T 24/39 Cord and rope holders
• CPC Class Codes: Y10T 24/3987 Loop, adjustable
• CPC Class Codes: Y10T 24/3991 Loop engaging

Abstract

The present disclosure relates to a safety device for retaining the cords of a Venetian blind, comprising two integrally molded upper and lower covers in the shape of trapezoid having a long protruding edge at the longer side of each of the trapezoid-shaped covers and a protruding edge at the top side of each thereof. Inside the upper part of both the upper and lower covers are disposed a long protruding post and a splitted column hollowed inside, whereas the lower part of them are an inverted U-shaped square column attached at its bottom to an elastic stop plate amputated at its bottom with serrated teeth and a pressing block slanting sidewardly. In operation, the cords (either two, three, or four) can be passed through the cord hole of the protruding edge and fixed by the serrated teeth of the elastic stop plate of the inverted U-shaped square member in a space between the elastic stop plate and the fending edge in the assembling of the two upper and lower covers when the long protruding posts are inserted to the hollow space of the splitted columns and the sidewardly slanting pressing blocks are pressed onto the elastic stop plates forcing the elastic stop plates to abut against the fending edges. The safety device is easy to assemble and convenient for the adjustment of the cords into equal length. Besides, it can prevent a child from strangling when the child'"'"'s neck gets caught between the cords.

Claims

1. A safety device for keeping the cords of a Venetain blind, comprising two integrally molded upper and lower covers in the shape of a trapezoid,

a fending edge disposed at the longer side of each of the trapezoid-shaped covers and a protruding edge opened with a U-shaped cord hole at the top side of each thereof,

inside the upper part of both the upper and lower covers being disposed a long protruding post and a splitted column hollowed inside;

and the lower part of both being an inverted U-shaped square member attached at its bottom to an elastic stop plate amputated at its bottom with serrated teeth and a sidewardly slanting pressing block;

in assembling of these two upper and lower covers while the long protruding post being inserted to the hollow space of the splitted column and the pressing block being pressed onto the elastic stop plate of the inverted U-shaped square member, the cords, passing through the cord hole of the protruding edge, can be fixed by said serrated teeth of said elastic stop plate in a space between the elastic stop plate and the fending edge;

whereby the cords can be adjusted easily through the device to avoid the accident of strangling.