Lift cord anchor clip for roman shade
A lift cord anchor clip for securement to a shade roller of a roman shade assembly is described. The clip comprises a spring metal band having a partly spherical shape and defining a throat opening which is narrower than the diameter of the spherical shape band. At least one clamping formation is integrally formed with the band and projects inwardly of an inner surface of the band. At least one end flange extends outwardly of the band below the clamping formation and is adapted for engagement by a tool to cause disengagement of the clamping formation. A cord attaching formation is also formed integral with the band for attaching a free end of a lift cord of a roman blind thereto.
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The present invention related to a lift cord anchor clip for securement about an actuation roller of a roman shade assembly whereby to attach the free ends of lift cords of the roman shade thereto to cause the shade to lift in a pleated form and to be lowered.
BACKGROUND ARTThere are several methods to cause roman shades to lift in a pleated manner wherein the panels of the roman shade are lifted in a stacking fashion overlapping one behind the other to place it in an open or partly open position and to then lower the shade to a closed fully extended position. Some of these known systems utilize a pair of pulleys about which each of the lift cords are guided and then the cords are passed through a cord lock which engages the lift cords with the shade at a desired position. It is also known to use aluminum shade rollers wherein a groove is provided along the length of the roller and a plastic button is fitted within the groove whereby to attach the lift cords thereto at a desires position. A clutch is provided at the end of the roller whereby to cause rotation of the roller and to lock it at a desired position. As the clutch mechanism is rotated the roller rotates and the cord rolls around the roller lifting the shade. The system uses an aluminum roller and a plastic locking component.
Another known system is to provide an aluminum roller with holes drilled into the roller with metal screws secured in the holes. The lift cords are attached to the screws.
SUMMARY OF THE INVENTIONIt is a feature of the present invention to provide a lift cord anchor clip for a roman shade and of the type which is securable to a shade roller and which substantially overcomes the above-mentioned disadvantages of the prior art and provides the above-mentioned need.
Another feature of the present invention is to provide a lift cord anchor clip for a shade roller of a roman shade and wherein the clip is symmetrical in construction and adjustable on the shade roller for positioning same at a desired location around the roller and at a desired position along the roller.
A further feature of the present invention is to provide a lift cord anchor clip which is inexpensive to produce, easy to install and remove from a shade roller and versatile and which can be adapted to several types of shade rollers including existing shade rollers which may be provided with different type lift cord connectors.
Another feature of the present invention is to provide a lift cord anchor clip in combination with an elongated shade roller of the type having support pins at opposed ends thereof and a clutch mechanism at an end to impart axial rotation to the shade roller and wherein two or more of the anchor clips are secured about the shade roller at any desired location therealong.
According to the above features, from a broad aspect, the present invention provides a lift cord anchor clip for securement to a roman shade roller. The clip comprises a spring metal band having a partly spherical shape. The band defines a throat opening which is narrower than the diameter of the spherical shape band. At least one clamping means is formed integrally with the band and projects inwardly of an inner surface of the band. Engageable means is spaced in relation to the clamping means and adapted for engagement by a tool to cause disengagement of the clamping means. A cord attachment means is provided for securing a lift cord to the anchor clip.
A preferred embodiment of the present invention will now be described with reference to the accompanying drawings in which:
Referring now to the drawings and more particularly to
Formed on opposed sides of the anchor clip 10 and above the outwardly turned free ends 14 is a clamping means constituted by a punched out formation which forms a clamping tooth 15 as better illustrated in
The engageable means 16 is in the form of a slot 16 punched out of the end flange spring metal band 11 on opposed sides of the anchor clip below the clamping teeth 15. This slot 16 permits the insertion of a screwdriver tip 50 (see
With additional reference to
The clamping teeth 15 may have a slightly different configuration then that illustrated and could be jagged or rounded instead of pointed as long as it can bite within a shade roller.
As shown in
Two lift cord anchor clips 10 and 101 are secured about the shade roller 31 at desired locations offset with respect to an associated one of the lift cords 42 and 421 such that the cords will wind about the roller 31 to a side of the clips 10 and 101, as shown in phantom lines at 42 and 421. It should be noted that the clip 10 is of symmetrical design, and therefore it can be clipped to any side of the roller, either the right side or the left side. Because the clip is symmetrical the user person cannot make a mistake in the installation.
As shown in
Because these shade rollers 31 are provided with different diameters, depending on their application and manufacturers, the lift cord anchor clip 10 of the present invention is also fabricated of different diameter sizes so that these clips may be secured to these different diameter size shade rollers. The spring metal clip 10 has a diameter which is slightly smaller than the diameter of the shade roller 31 and sufficient to permit clamping engagement of the anchor clip 10 about the shade roller 31 with the clamping teeth 15 biased against and biting into the outer surface 311 of the shade roller to prevent rotational displacement of the anchor clips 10 and 101 about the shade roller 31.
As also shown in
It is within the ambit of the present invention to cover any obvious modifications over the preferred embodiments described herein, provided such modifications fall within the scope of the appended claims.
Claims
1. A lift cord anchor clip for securement to a roman shade roller, said clip comprising a spring metal band having a partly spherical shape, said band defining a throat opening which is narrower than the diameter of said spherical shape band, at least one clamping means formed integrally with said band and projecting inwardly of an inner surface of said band, engageable means spaced in relation to said clamping means and adapted for engagement by a tool to cause disengagement of said clamping means, and chord attachment means for securing a lift cord to said anchor clip.
2. A lift cord anchor clip as claimed in claim 1 wherein said clamping means is provided on a respective side of said throat opening, there being two of said engageable means each of which is spaced from an associated one of said clamping means.
3. A lift cord anchor clip as claimed in claim 2 wherein said clamping means is formed by at least one clamping tooth extending inwardly upwards from said opening.
4. A lift cord anchor clip as claimed in claim 3 wherein there are two of said clamping teeth punched inwardly from said spring metal band, each tooth having a pointed end.
5. A lift cord anchor clip as claimed in claim 2 wherein said engageable means is constituted by a slot in an outwardly turned end flange on opposed sides of said throat opening to permit insertion of a screwdriver tip constituting said tool.
6. A lift cord anchor clip as claimed in claim 2 wherein said engageable means is constituted by an outwardly turned end flange formed from said band on opposed sides of said throat opening.
7. A lift cord anchor clip as claimed in claim 2 wherein said cord attachment means is constituted by a cord attaching formation formed integral with said band and positioned between said clamping means.
8. A lift cord anchor clip as claimed in claim 7 wherein said cord attaching formation is constructed by an elevated transverse wall having at least one through bore therein and dimensioned to receive a lift cord therethrough.
9. A lift cord anchor clip as claimed in claim 8 wherein there are two of said through bores, said through bores being formed by cylinder formations shaped and bent to create a pair of spaced apart tunnel-like through bore formations.
10. A lift cord anchor clip as claimed in claim 1 wherein said anchor clip is formed from a single flat rectangular spring metal band.
11. A lift cord anchor clip as claimed in claim 2 in combination with an elongated shade roller having opposed support pins at opposed ends thereof and a clutch mechanism at one of said opposed ends to impart axial rotation to said shade roller to cause same to rotate clockwise and counterclockwise, and wherein two or more of said anchor clips are secured about said shade roller at predetermined locations therealong to provide for attachment of a free end of lift cord of a roman blind thereto.
12. A lift cord anchor clip as claimed in claim 11 wherein said clamping means is formed by at least one clamping tooth extending inwardly of an inner surface of said band and extending upwards from said opening.
13. A lift cord anchor clip as claimed in claim 12 wherein said engageable means is constituted by a slot in an outwardly turned end flange on opposed sides of said throat opening to permit insertion of a screwdriver tip constituting said tool.
14. A lift cord anchor clip as claimed in claim 13 wherein said cord attachment means is constituted by a cord attaching formation formed integral with said band and positioned between said clamping means.
15. A lift cord anchor clip as claimed in claim 14 wherein said cord attaching formation has at least one through bore formation dimensioned to receive a lift cord therethrough.
16. A lift cord anchor clip as claimed in claim 15 wherein there are two of said through bore formations, said through bore formations being formed by cylindrical formations shaped and bent to create a pair of spaced apart tunnel-like through bore formations.
17. A lift cord anchor clip as claimed in claim 16 wherein said free end of each said lift cords is secured to one of said through bore formations by passing said free end through one of said through bore formations with said lift cord taut and forming a knotted end in said free end to prevent said free end from being pulled out of said through bore.
18. A lift cord anchor clip as claimed in claim 13 wherein said diameter of said spring metal band is smaller than the diameter of said shade roller sufficient to permit claming engagement of said anchor clip about shade roller with said clamping teeth biased against an outer surface of said shade roller to prevent rotational displacement of said anchor clip about said shade roller.
19. A lift cord anchor clip as claimed in claim 18 wherein there are two of said clamping teeth punched inwardly from said spring metal band, each tooth having a pointed end and wherein one of said clamping teeth is disengageable from its clamping engagement with said shade roller outer surface by inserting a screwdriver tip in said slot of said end flange associated with said one of said clamping teeth to pull said end flange outwards to cause said spring metal throat opening to widen to disengage said one of said clamping teeth to permit rotation of said anchor clip about said shade roller outer surface in a single direction forwardly of said clamping teeth to permit adjustment of said anchor clip or the removal thereof.
Type: Application
Filed: Aug 29, 2006
Publication Date: Dec 6, 2007
Applicant:
Inventor: Howard Sirkin (St-Laurent)
Application Number: 11/511,444