Window covering height adjustment apparatus and method using fixed position rotor
AssigneeZipshade Industrial (B.V.I.) Corp.
InventorsLi-Ming Cheng, Lawrence S. Wu
Life of this patent
Estimating the term…
Abstract
A method of controlling the vertical height of a window shade having a top and bottom, which includes providing shade upper support structure at or proximate the shade top; providing at least one substantially vertically elongated shade support line extending downwardly from the upper support structure, and providing shade lower support structure at or proximate the shade bottom; elevating or lowering the shade lower support structure relative to one or more support lines; and securing the shade lower support structure to the line or lines at a selected height position relative to the line length above the lower support structure, whereby the height of the shade bottom can be quickly manually adjusted.
Claims7
The method of controlling the vertical height of a window shade having a top and bottom, and left and right ends, which includes the steps
- a) providing shade upper support structure at or proximate the shade top,
- b) providing at least one elongated shade support line extending downwardly from said upper support structure,
- c) and providing shade lowermost support structure at or proximate the shade bottom, said support line extending downwardly through the shade and to and through said lowermost support structure at a location between said left and right ends of the shade, and being anchored below said lowermost support structure,
- d) elevating or lowering said shade lower support structure relative to at least a portion of said one or more support line or lines,
- e) and effectively securing said shade lower support structure to the line or lines at a selected height position relative to the line length above said lower support structure,
- f) said securing including effecting attachment of the line or lines to a fixed support relative to which the shade lower support structure is raised or lowered,
- g) whereby the height of the shade bottom can be quickly manually adjusted by adjustment of the height of the shade lower support structure.
Apparatus for controlling the vertical height of a window shade having a top and bottom, and left and right ends, which includes
- a) shade upper support structure at or proximate the shade top,
- b) at least one substantially vertically elongated shade support line extending downwardly from said upper support structure,
- c) and shade lower support structure at or proximate the shade bottom, said support line extending downwardly through the shade and to and through said support structure at a location between said left and right ends of the shade,
- d) said apparatus adapted for elevating or lowering said shade lower support structure relative to said one or more support lines,
- e) a securing device for effectively securing said shade lower support structure to the line or lines at a selected height position relative to the line length above said lower support structure, said securing device effecting anchoring of the line below said shade lower support structure at a fixed support relative to which the shade lower support structure is raised or lowered,
- f) whereby the height of the shade bottom can be quickly manually adjusted by adjustment of the height of the shade lower support structure effective securement to said line or lines.
Dependencies are inferred from the claim text.