Cord separator for blind cord winding mechanism

• US 10,641,039 B2
• Filed: 02/05/2018
• Issued: 05/05/2020
• Est. Priority Date: 08/28/2017
• Status: Active Grant

• Current Assignee: Sheen World Technology Corporation
• Original Assignee: Sheen World Technology Corporation
• Inventors: Chen, Po-Yu
• Primary Examiner(s): Cahn, Daniel P
• Application Number:
  US15/888,686
• Publication Number:
  US 20190063150A1
• Time in Patent Office: 820 Days
• Field of Search: 160170
• CPC Class Codes: E06B 9/322 Details of operating devices, e.g. pulleys, brakes, spring drums, drives operating devices E06B9/68 ; devices of general interest specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material B65H75/34
• CPC Class Codes: E06B 9/382 Details of ladder-tapes or ladder chains, e.g. buckles for local shortening of tapes
• CPC Class Codes: E06B 9/68 Operating devices or mechanisms, e.g. with electric drive

Abstract

A cord separator used in a blind cord winding mechanism is disclosed to include a support portion, two wing portions respectively and outwardly extended from two opposite lateral sides of the support portion and respectively defining therein a cord insertion hole for the passing of one respective transmission cord, and two extension portions respectively perpendicularly extended from the wing portions along the axial direction of the cord insertion holes in parallel manner and respectively terminating in a positioning end portion for hooking on one respective side post of the blind cord winding mechanism so that the cord separator is capable of separating two transmission cords of the blind cord winding mechanism and preventing the two transmission cords from interfering with each other or being tangled during transmission.

Claims

1. A blind cord winding mechanism, comprising:

a casing having a rectangular shape which is provided with a pair of opposite ends, two side posts disposed in parallel at one of the pair of opposite ends, and an end opening defined between said two side posts;

two driving gears being rotatably mounted in said casing and meshed with each other;

a coil spring being connected between said two driving gears and can be extended out upon rotation of said two driving gears;

a cord separator comprising a support portion, two wing portions and two extension portions, said two wing portions being respectively and outwardly extended from two opposite lateral sides of said support portion, each of said two wing portions defining therein a cord insertion hole and having an outer surface facing one of said two driving gears, said two extension portions being respectively perpendicularly extended from said outer surface of said two wing portions and each of said two extension portions being respectively terminating in a positioning end portion, said two extension portions being inserted into said end opening in a direction toward one of said two driving gears and said positioning end portions of said two extension portions being hooked on said two side posts respectively.

2. The blind cord winding mechanism as claimed in claim 1, wherein said support portion is an elongated member;

said two wing portions are respectively extended from said support portion at different elevations and disposed in rotational symmetry along with a long axis of said support portion.

3. The blind cord winding mechanism as claimed in claim 1, wherein said support portion has an arched cross section.

4. The blind cord winding mechanism as claimed in claim 1, wherein said cord insertion hole of each said wing portion is disposed at different elevations.