Slats with an improved route hole configuration for use within a covering and related manufacturing methods

Patent metadata

Field	Value
Publication number	US-11208841-B2
Application number	US-201816032788-A
Country	US
Kind code	B2
Filing date	Jul 11, 2018
Priority date	Jul 14, 2017
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

In one aspect, a slat configured for use with a covering for an architectural structure includes a route slot defined at least partially by a route wall that is recessed relative to one or more outer faces of the slat. Additionally, the recessed route wall further defines a through-hole for passing a cord through the route slot between the opposed outer faces of the slat. By configuring the disclosed route slot in this manner, the dimensions of the through-hole can be significantly reduced while still allowing full tilting of the slat to the closed position, thereby increasing light control and privacy for the associated covering.

First claim

What is claimed is:

1. A covering for an architectural structure, said covering comprising:
a headrail;
a bottom rail spaced apart, from said headrail in a vertical direction;
a plurality of slats supported between said headrail and said bottom rail, each slat of said plurality of slats being tiltable between an open position, at which said slat has a horizontal orientation, and a closed position, at which said slat is oriented at a maximum tilt angle relative to the vertical direction; and
a lift cord passing through each of said plurality of slats and extending between said headrail and said bottom rail;
each slat of said plurality of slats comprising:
a slat body including opposed first and second faces extending in a longitudinal direction between first and second lateral ends of said slat body and in a crosswise direction between first and second edges of said slat body; and
a route slot at least partially defined by a route wall that is recessed relative to said first and second faces of said slat body, said route wall at least partially dividing said route slot into a first recess extending between said first face of said slat body and said route wall and a second recess extending between said second face of said slat body and said route wall, with said first recess being at least partially separated from said second recess in a thickness direction of said slat by said route wall, said route wall extending radially from an outer end of said route wall to an inner end of said route wall, said inner end of said route wall defining a through-hole of said route slot;

wherein:
said through-hole connects said first recess to said second recess at a location between said first and second faces of said slat body to allow said lift cord to be passed through said route slot;
a thickness of said route wall defined in said thickness direction tapers at a taper angle as said route wall extends from said outer end of said route wall to said inner end of said route wall; and
said taper angle of said route wall is configured such that, when said slat body is oriented at the maximum tilt angle of said slat, said lift cord at least partially contacts a first sloped surface of said route wall defining a portion of said first recess and at least partially contacts a second sloped surface of said route wall defining a portion of said second recess, said first and second sloped surfaces are configured to allow said lift cord to be substantially vertical and substantially straight as said lift cord contacts a majority of said first and second sloped surfaces at the maximum tilt angle of said slat.

2. The covering of claim 1 , wherein said route wall is formed by a portion of said slat body.

3. The covering of claim 1 , wherein said route wall is formed by a separate insert installed relative to said slat body.

4. The covering of claim 1 , wherein said outer end of said route wall defines an outer perimeter of said route slot.

5. The covering of claim 1 , wherein said thickness of said route wall tapers such that said route wall defines a tapered profile between said outer and inner ends of said route wall.

6. The covering claim 1 , wherein said taper angle is equal to the maximum tilt angle for said slat.

7. The covering of claim 1 , wherein:
said route wall is tapered such that said thickness of said route wall decreases as said route wall extends from said outer end of said route wall to said inner end of said route wall;
said slat body defines a central slat plane that is centered between and extends parallel to said first and second faces of said slat body; and
said inner end of said route wall is recessed relative to said first and second faces of said slat body such that said through-hole is aligned or substantially aligned with the central slat plane of said slat body.

8. The covering of claim 1 , wherein said lift cord is configured to pass freely through said through-hole as said bottom rail is raised and lowered relative said headrail.

9. The covering of claim 1 , wherein said lift cord is maintained in a vertically straight orientation as said lift cord passes through each of said plurality of slats and extends between said headrail and said bottom rail.

10. The covering of claim 5 , wherein said tapered profile is configured such that said thickness of said route wall decreases as said route wall extends from said outer end of said route wall to said inner end of said route wall.

11. A covering for an architectural structure, said covering comprising:
a headrail;
a bottom rail spaced apart from said headrail in a vertical direction;
a plurality of slats supported between said headrail and said bottom rail, each slat of said plurality of slats being tiltable between an open position, at which said slat has a horizontal orientation, and a closed position, at which said slat is oriented at a maximum tilt angle relative to the vertical direction; and
a lift cord passing through each of said plurality of slats and extending between said headrail and said bottom rail;
each slat of said plurality of slats comprising:
a slat body including opposed first and second faces extending in a longitudinal direction of said slat body between first and second lateral ends of said slat body and in a crosswise direction of said slat body between first and second edges of said slat body, said first and second faces being spaced apart from each other in a thickness direction of said slat body; and
a route wall at least partially recessed relative to at least one of said first face or said second face in said thickness direction of said slat body such that said route wall defines at least one recess along said at least one of said first face or said second face of said slat body, said route wall further defining a through-hole between said first and second faces for passing said lift cord through said slat body;

wherein:
said at least one recess is enlarged relative to said through-hole in at least one of said longitudinal direction or said cross-wise direction;
said at least one recess comprises a first recess extending between said first face of said slat body and said route wall and a second recess extending between said second face of said slat body and said route wall;
said lift cord passes freely through said through-hole such that said lift cord moves relative to said slat body as said bottom rail is raised and lowered relative said headrail;
a thickness of said route wall defined in said thickness direction tapers at a taper angle as said route wall extends from an outer end of said route wall to an inner end of said route wall such that, when said slat body is oriented at the maximum tilt angle of said slat, said lift cord extends along and contacts a majority of both a first sloped surface of said route wall defining portion of said first recess and a second sloped surface of said route wall defining a portion of said second recess; and
said first and second sloped surfaces are configured to allow said lift cord to be substantially vertical and substantially straight when said slat body is oriented at the maximum tilt angle.

12. The covering of claim 11 , wherein:
said at least one recess defines an outer perimeter;
said through-hole defines a perimeter along an inner end of said route wall; and
a dimension of said outer perimeter of said at least one recess in said at least one of said longitudinal direction or said cross-wise direction is greater than a corresponding dimension of said perimeter of said through-hole in said at least one said longitudinal direction or said cross-wise direction.

13. The covering of claim 11 , wherein said fi

Assignees

• Hunter Douglas

Inventors

• Anderson Richard N
• Thompson Eugene W

Classifications

• E06B9/303 Primary

  with ladder-tape · CPC title

• E06B9/386

  Details of lamellae · CPC title

• E06B9/266

  Devices or accessories for making or mounting lamellar blinds or parts thereof {(cleaning of lamellar blinds A47L4/00; joining plastics plates for making venetian blinds B29C66/437)} · CPC title

• E06B9/327 Primary

  Guides for raisable lamellar blinds with horizontal lamellae · CPC title

• E06B9/326

  Details of cords, e.g. buckles, drawing knobs · CPC title