Blind, blind slat, manufacturing method of the same, and...

Details Blind, blind slat, manufacturing method of the same, and... Blind, blind slat, manufacturing method of the same, and...

2005-05-25

2008-12-09

Ross, Dana (Department: 3726)

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

C029S024500, C029S241000

Reexamination Certificate

active

07461440

ABSTRACT:
To provide a blind slat resistant to bending with keeping good rotation of a slat. The slat (16) is formed with a lift cord passing hole (16a) through which a lift cord passes, and when a length of the lift cord passing hole (16a) in a slat width direction is b, a slat width is a, and a slat crown height is e,0.59·ea+0.19≤ba≤-1.41·ea+0.70is satisfied, and the slat (16) is formed with a protrusion (16g), which crosses an extension line (16d) of the lift cord passing hole (16a) and protrudes beyond a general plane (16e) of the slat, the extension line (16d) connecting an edge (16b) of the lift cord passing hole (16a) in the slat width direction and an edge (16c) of the slat (16) in the slat width direction.

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European Search Report dated May 7, 2004.

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