Apparatus and method for trimming a venetian blind assembly

Details Apparatus and method for trimming a venetian blind assembly Apparatus and method for trimming a venetian blind assembly

1987-05-13

1989-04-11

Schran, Donald R.

Cutting

Processes

Plural cutting steps

83 13, 83516, 83527, 83701, 83648, 83925R, 29 245, E06B 9266

Patent

active

048195308

ABSTRACT:
An automatic or semiautomatic apparatus cuts off the ends of preassembled standard venetian blinds to provide custom-size blinds for windows that are not modern standard sizes. An automated process is used to cut preassembled blinds to provide custom-size blinds for such windows. The apparatus preferably includes twin cutters arranged to trim both ends of a slat simultaneously, and is shaped, sized and configured to do so while the slat remains preassembled in a blind. The apparatus also preferably includes a vertical bed for suspending a blind in an opened and generally taut condition--and a mechanism for moving the cutter vertically along the bed to cut each slat in turn. Preferably the apparatus automatically registers the cutter with each slat and interrupts the cutting sequence after the last slat is cut. Optical sensing is preferably used to obtain the automatic registration. A motion-redirecting stage in the cutter mechanism allows a single driving cylinder or solenoid to both advance the cutter into cutting position and then actuate the cutter blade(s) to shear a slat. Symmetrical adjustment of the cutters relative to the long dimension of the slats enables the apparatus to make any of a great variety of custom blind sizes.

REFERENCES:
patent: 2827686 (1958-03-01), Adelman
patent: 3766815 (1973-10-01), Edixhoven
patent: 4639987 (1987-02-01), Georgopoulous

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