Abstract: A slider assembly includes an axle device having a base with an engaging member for coupling with another engaging member on a slat. The base includes an axle on a top thereof. The axle includes a top portion having a slit, forming two resilient tabs spaced by the slit. The axle further includes a bottom portion having an enlarged section. A slider includes a seat having a plurality of rollers rotatably mounted thereto. The seat includes an axle hole having a lower opening. The axle hole includes a retaining shoulder on an inner periphery thereof. The axle is inserted into the axle hole by resiliency provided by the slit. The enlarged section of the axle is engaged with the retaining shoulder, allowing the axle to rotate about an axis. The axle has a fixed position along the axis.

Abstract: A slat support for a vertical blind includes a gear on a top end thereof. The gear includes a toothed section and a stop section. The toothed section includes a plurality of circumferentially spaced radial gear teeth. A thickness area between upper and lower faces of the stop section is at least partially located within a tooth thickness area of the radial gear teeth of the toothed section. The toothed section meshes with a gear device that can be driven upon rotation of a splined tilt rod. When rotation to the leftmost position or the rightmost position of the gear device is reached, the stop portion is too large to engage with and stopped by the gear device, preventing further movement of the gear device and the gear of the slat support. Gear skipping problem is reliably avoided.

Abstract: A reel device includes a reel rotatably supported in a casing of a blind. A guide is mounted on an end of the reel. The guide includes an abutting point against which a cord of the blind abuts. The guide further includes an extension extending toward the other end of the reel. A line passing the abutting point and an end edge of the guide is at an acute angle with a line orthogonal to a longitudinal axis of the reel. When a section of the cord reaches the abutting point and the end edge of the guide, an acute angle is created, and this acute angle of the section of the cord avoids two forces that act on the cord in opposite direction from acting on the same line. Thus, overlapping of the turns of the cord on the reel is avoided.

Abstract: A reel device includes a reel rotatably supported in a casing of a blind. A guide is mounted on an end of the reel. The guide includes an abutting point against which a cord of the blind abuts. The guide further includes an extension extending toward the other end of the reel. A line passing the abutting point and an end edge of the guide is at an acute angle with a line orthogonal to a longitudinal axis of the reel. When a section of the cord reaches the abutting point and the end edge of the guide, an acute angle is created, and this acute angle of the section of the cord avoids two forces that act on the cord in opposite direction from acting on the same line. Thus, overlapping of the turns of the cord on the reel is avoided.