Structure of venetian blind

• US 5,052,150 A
• Filed: 09/18/1990
• Issued: 10/01/1991
• Est. Priority Date: 09/18/1990
• Status: Expired due to Fees

• Current Assignee: Chen, Chih-Tsung
• Original Assignee: Chen, Chih-Tsung
• Inventors: Chen, Chih-Tsung
• Primary Examiner(s): Lindsey, Rodney M.
• Assistant Examiner(s): REDMAN, JERRY E
• Application Number:
  US07/584,224
• Time in Patent Office: 378 Days
• Field of Search: 49/74, 49/84, 98/121.2
• US Class Current: 49/82.1
• CPC Class Codes: E06B 7/084 with rotatable lamellae
• CPC Class Codes: E06B 9/367 Lamellae suspensions E06B9/362 takes precedence; Bottom weights; Bottom guides

Abstract

The present invention is concerned with an innovative design of venetian blind providing the functions of sun screening, light regulating, the prevention of burglary and beautiful appearance; in particular, the one which is easy to be assembled by consumers themselves. It is to unite and fix a lot of supporting seats in equal spacing on a fixed guide rail and then connect serially with a regulating shaft which is combined with a regulating wheel; the supporting seats are combined with a slat respectively and the top end of the slat is restricted and positioned by two fixing plates which allows the slat to turn. The regulating shaft is driven to rotate by the regulating wheel and then the supporting seats would drive in turn the slats to turn to adjust the angle of the slats of the venetian blind.

Claims

1. A plurality of equally spaced supporting seats, each seat having a seat body, a shaft lever receiver pivoted with a worm wheel, a gear at the lower end to mesh with a worm gear, the shaft lever receiver having an axial hole, flanges on the two sides of the seat having pairs of penetrating holes corresponding with penetrating holes of an above fixing rail, screws for fastening the seat body on the fixing rail, wherein the rotation of the worm wheel drives the shaft lever receiver;

a regulating shaft connected to the worm gears in series to drive the worm wheel and shaft lever receiver to move synchronously;

a regulating wheel set on one end of the regulating shaft for rotation of the regulating shaft;

slats in same number of the supporting seats, having an identical adapter on either end a shaft lever in the center of the adapter to facilitate the slats to be positioned by the inserting of the shaft lever of the adapter at their respective shaft lever receivers;

a first fixing plate in strip shape with an axial flange which has positioning troughs in equal spacing on the lateral side corresponding with axle holes of the shaft lever receivers allowing the inserting and positioning of the shaft lever on the top end of the slats and having a plurality of generating holes on outside portions of the two sides of the flange;

a second fixing plate in right angular strip shape with a plurality of positioning troughs on a lateral side corresponding with the first fixing plate troughs to form full circular holes along with a plurality of penetrating holes corresponding with the first fixing plate penetrating holes for locking the two fixing plates together;

wherein a venetian blind constituted by the above components if fixed on the lower side of the window frame by means of a fixing rail which fixes the supporting seats in equal spacing, wherein the supporting seats are connected in series by a regulating shaft on which the worm gears are pivoted, wherein the regulating shafts combine with regulating wheels and the shaft lever receivers of the supporting seats combine with slats to insert the other end of the slats into the positioning trough between two fixing plates wherein the assembly is easy and the angle of the slats is adjusted by means of the driving of the regulating wheel.