Method and apparatus of infinitely sizing a mini blind

• US 5,072,494 A
• Filed: 10/10/1990
• Issued: 12/17/1991
• Est. Priority Date: 08/19/1988
• Status: Expired due to Term

• Current Assignee: Newell Window Furnishings Incorporated (Newell Brands Inc.)
• Original Assignee: Newell Operating Company (Newell Brands Inc.)
• Inventors: Anderson, Roger L., Graves, Delbert B.
• Primary Examiner(s): Eley, Timothy V.
• Assistant Examiner(s): MARTIN, CHARLES
• Application Number:
  US07/595,359
• Time in Patent Office: 433 Days
• Field of Search: 29/24.5, 29/433
• US Class Current: 29/24.5
• CPC Class Codes: B23B 41/00 Boring or drilling machines or devices specially adapted for particular work surgical drilling machines A61B17/16; Accessories specially adapted therefor
• CPC Class Codes: E06B 9/266 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 Class Codes: E06B 9/303 with ladder-tape
• CPC Class Codes: Y10T 29/39 Venetian blind assembling
• CPC Class Codes: Y10T 29/49838 by stringing

Abstract

A method and apparatus for sizing a slat window blind to an exact width at the point of purchasing using the level of operator skill typically found in retail outlet. The invention is particularly adapted for use in connection with a type of blind in which a number of individual, horizontally disposed slats are spaced vertically apart from one another along flexible lines, often referred to as ladder cords, and which have a flat or slightly curved cross-sectional configuration. Often such slats are approximately one inch in width and frequently the term "mini blind" has been applied to this type of article.

Claims

1. A manual method of sizing a mini-blind having a plurality of slat means and a first ladder means at an undisturbed end of said slat means and a second ladder means at a cuttable end of said slat means to an exact, specified width at the time of purchase by an operator, said method including the steps of:

locating the second ladder means at the cuttable end of the mini-blind in a position remote from the final position of the ladder cord,

forming the mini-blind into a rigid structure,

forming an aperture through the rigid structure for a ladder cord for the second ladder means,

sizing the mini-blind to the specified width by separating excess mini-blind material from the balance of the mini-blind by the application of a manually applied lever-assisted force to the rigid mini-blind structure,

positioning several of the ladder links of the second ladder means on each side of the aperture, and

threading a ladder cord through the aperture and securing it in fixed relationship to the lower portion of the slat means.

2. The method of claim 1 further characterized by and including the step of:

sizing a horizontal slat means tiltor bar to the required width.

3. The method of claim 2 further characterized in that:

the horizontal tiltor bar is sized to width prior to separation of the excess mini-blind material from the balance of the mini blind.

4. The method of claim 1 further characterized in that the separated excess of the blind includes head rail means.

5. The method of claim 1 further characterized in that

positioning of the several ladder links of the second ladder means on each side of the aperture is accomplished by

firstly, loosening the rigid structure, and,

secondly, thereafter moving said several ladder links of the second ladder means to the cut end side of the aperture while said slat means are in a loosened condition.

6. A manual method of sizing a mini-blind having a plurality of slat means and a first ladder means at an undisturbed end of said slat means and a second ladder means at a cuttable end of said slat means to an exact, specified width at the time of purchase by an operator, said method including the steps of:

locating the second ladder means at the cuttable end of the mini-blind in a position remote from the final position of the ladder cord,

forming the mini-blind into a rigid structure,

forming an aperture through the rigid structure for a ladder cord for the second ladder means by the application of hand controlled drilling forces to the rigid structure,

sizing the mini-blind to the specified width by separating excess mini-blind material from the balance of the mini-blind by the application of a manually applied lever-assisted force to the rigid mini-blind structure,

positioning several of the ladder links of the second ladder means on each side of the aperture, and

threading a ladder cord through the aperture and securing it in fixed relationship to the lower portion of the slat means.

7. The method of claim 6 further characterized by and including the step of:

sizing a horizontal slat means tiltor bar to the required width.

8. The method of claim 7 further characterized in that:

the horizontal tiltor bar is sized to width prior to separation of the excess mini-blind material from the balance of the mini-blind.

9. The method of claim 6 further characterized in that the separated excess of the blind includes headrail means.

10. Apparatus for sizing a mini-blind having a plurality of slat means to an exact, specified width at the time of purchase by an operator said apparatus including

means for supporting a mini-blind in a position to be cut to specified width,

manually activated lever assisted force applying cutting means for cutting all elements of the mini-blind which have a dimension greater than the specified width, to the specified width,

means for forming a ladder cord aperture in the mini-blind at a location adjacent the cut end of the mini-blind, and

means for placing several of a plurality of ladder links comprise a ladder means on the cut end side of the aperture and for placing several of said plurality of ladder links which comprise said ladder means on the opposite side of the aperture

whereby, when a ladder cord associated with said ladder means is threaded into said aperture and fixed with respect to the lower most portion of the mini-blind, said ladder means is substantially precluded from displacement in either direction from the ladder cord.

11. The apparatus of claim 10 further including clamp means for maintaining the slat means as a rigid body during the cutting of the slat means and the forming of the aperture in said slat means at the cut end portion of the mini-blind.

12. The apparatus of claim 10 further characterized in that

the means for forming a ladder cord aperture in the mini-blind at a location adjacent the cut end of the mini-blind includes at least one drill which is reciprocable along the extended axis of the drill bit in a forward, drilling direction and a rearward, retraction direction,

said drill being manually actuable in the drilling and retraction directions at all times.