US2895401A

US2895401A - Air directing louver device

Info

Publication number: US2895401A
Application number: US679223A
Authority: US
Inventors: Albert B Goettl
Original assignee: INTERNAT METAL PRODUCTS COMPAN
Current assignee: INTERNAT METAL PRODUCTS COMPAN; INTERNATIONAL METAL PRODUCTS Co
Priority date: 1957-08-20
Filing date: 1957-08-20
Publication date: 1959-07-21
Anticipated expiration: 1976-07-21

Description

July 21, 1959 A. B. GOE'TTL 2,895,401

- AIRDIRECTING ouvsa DEVICE- Filed Aug. 20, 1957 24 36 .24 I2 36 so -MQ i 'ii' 8 28 ii 34' 32 2 'INVENTOR.

RT B. GOETTL AGENT AIR DIRECTING'LOUVER'DEVICE' Albert B; Goettl, Phoenix, Ariz., assignor to International Metal Products Company, Phoenix, Ariz.

Application August 20, 1957, Serial'No. 679,223

Claims. (Cl. 918-410) 1 The present'invention relates *to an airrdirecting louver deviceand more. particularly to an air directing 1 louver device having intersecting pivoted slats andimeans for holding the pivoted slatsin a'frame and-properly located. withrrespect to each other...

In. the construction of air directing louver devices employing intersecting notched slats various devices have beenemployed for holding the notches of such intersecting slats in mesh or engaged relation with each other during the flow of air between the. slats. Furthermore: it has been a problem to provide simple means for holding.

such slats in various adjustedpositions relative to each other and within a frame which circumscribes the assem: bly. of the intersecting slats.

According to the. present invention a plurality of intersecting louver slats are provided with. meshing.

notch portions having inwardly directed notch extremities wherein arcuate bearings interconnect the slats. The centers of the arcuate bearings .formpivotalaxes. for the. slats and permit them to pivot within the angular limits of. the notches of these slats while the arcuate bearings also provide frictional interengagement of. the. slats to hold them in various angularly adjusted positions relative to each other. In addition, the present inven-. tion includes simple means for retaining an assembly of intersecting louver slats and a framemwhich circunr.

scribes an assembly of the slats.

The present improvements in air directing louver constructionare particularly adaptedto the: use ofplastic materials which may have sufficient resilience to provide for frictional? loading of interengaging arcuateubearings which interconnect the slats at their intersecting notch portions.

Itis an object of'the present invention to provide an air'directing; louver device wherein .arcuate bearings, at theinner. extremities of meshing :notches inintersecting slats, interconnect the intersectingslatsontheir pivotal axes;

Another object of the invention is. to: provide: an

improvednair directing louver construction, particularly for.. use intheyassembly of slats inframes.

Another object of the invention is to provide an assembly of'several intersecting slats whichqrnay readily be retained in a rectangular frame 'bywtwo straight wires which can be longitudinally inserted. in the frame after.

"ice

Fig; 1* is a' fragmentary side elevational view of an? air directing louver device including a'plurality ofmintersecting slats containedina substantially rectangular frame.

Fig. 2 is afragmentary sectional view taken from the! line 22of.lFig-; 1.

Fig. 3 is a fragmentary sectional view taken from the line -3 of Fig. 1" and;

Fig. 4 is a fragmentarytsectiona'l view taken from the line'4--4 -of Fig; 3&-

As-shown-in Fig; l of the drawings the present air directing louver device is; provided'-' with i a frame 10 which is substantially rectangular and'is provided' with; side elements 12 having flange portions 14 adapted-to surroundan opening it in which the-frame 10 maybe inserted. The frame isprovided with a plurality of integral spaced parallel slats 16 having substantially V-shaped' notch portions 18 therein; These V-shaped notch portions are'provided with arcuate concave hearing portions 20*at their inner extremities and these notches diverge outwardly to a commonedge 22 of the slats16;'

A- plurality of slats 24 aredisposed at substantially right angles to the slats 16 andintersect the same. The slats 24 are provided with notch portions 26 having parallel sides which straddle-the slats16 and at the inner extremity of the-notch portions 26 -are arcnatein cross section cylindricalbearing portions 28 which are integral with the slats 24:

The arcuate bearings 28 are-engaged in the arcuate recesses of the slats lo and the 'arcuatebearing'portions 20 extend substantially more than degrees around the arcuatebearing-"portions 283' It will'be-noted that the bearings 28 are tightly fitted in the arcuate recesses 20. The resilience of the plastic materialof the slats 16 at the arcuate bearing portions 20- gripping the bearing portions 28 provides sufficient friction so that the slats 24, when pivoted within the angular notch portions 13, will remain in adjusted position;

Opposite ends of the slats 24 are provided with arcuate bearing ledges 30 which are engagedby wires 32 inserted through thefrarne 10. The wires 32 may be inserted through openings in -theend oftheframe 10 and are supported in-theframe 10by ledges S las shown best in- Fig. 3 of the drawings. The ledges 34-:are formed by offset portions ofthe sides 12' whichextend inwardly and notches-36 extend" through these offset portions; It will be seen that the arcuate bearing ledges 30 as shown in Fig. 4 ofthe drawings bear against the wire 32and'that thepivotal axes ofthe-bearings 28 pass throughthe middle portions of the slats 24 ata distance from the wire'32 equal to half the thickness of the slats 24.

In the sides 12 of the frame 10 arenotch portions 36 through which the'ends of the slats 24; at their ledge-- portions 30, maybe inserted when the arcuate bearing portions28 are-inserted in the arcuate recess bearing portions 20 of the slats 16. It will be noted that the ledge bearingportions 36; when inserted'in the notches 36 are" forced downwardly "belowtheledge 34 at the terminus 'of thenotch portions 36, whereupon the" wires 32 may9beinsertedbetWeenthe'ledge'S l and the arcuate ledge bearing 'portions'30 of the slats"24.

In operation-the slats'24 may be" pivoted relative tothe slats 16"'within the angular limits of" the V-shapecl notches 18" while the arcnate bearing portions" 20 grip" the arcuate bearing portions 28 due to resilience of the plastic material in the slats 16. Thus, the slats 24 may be pivoted to various angular positions at which they will remain during vigorous flow of air through the louver slats thus the slats are prevented from buifeting or moving out of adjusted position while air is being 3 directed through the louver slats to a location in a building room as desired.

The bearing ledge portions 30 of the slats 24 pivot relative to the wires 32 concentric with axes of the arcuate bearing portions 28. The wires 32 hold the slats 24 in the frame and prevent accidental displacement of'the arcuate bearing portions 28 from the bearing portions 20 of the slats 16; It will be noted that the ledge portions 34 which support the wires 32 are opposed to the arcuate bearing portions 20 so that the wires 32 oppose the displacement of the bearing portions 28 from the arcuate concave recess bearing portions 20. Thus, the wires 32 in engagement with the arcuate ledge bearings 30 of the slats 24 hold them securely in a position wherein the arcuate bearing portions 28 cannot be displaced from the concave arcuate bearing recess portions of the slats 16.

It will be noted that the wires 32 being straight and insertable under the ledge 34 of the frame provide a very simple means for securely assembling the movable slats in the stationary slats of the louver device. The bearing portions 28, which are resilient, are snapped into the concave arcuate bearing portions and provide a very simple arrangement for initial assembly of the louver slats in intersecting relationship with each other. The arcuate bearing portions and 28 securely interengage each other and maintain a sufliciently close alignment of the ledge bearing portions 30 relative to the ledges 34 of the frame so that the wires 32 may readily be inserted without difiiculty. Ends 38 of the wires 32 which are foremost when projected into the frame may be sharpened so they readily thread their way by the bearing ledge portions 30 of the slats 24 and the ledge 34 adjacent to the ends of the notches 36 to abridge the same and to prevent displacement of the slat bearing portions 30 therethrough.

Various modifications of the present invention may be resorted to in a manner limited only by a just interpretation of the following claims.

I claim:

1. In a louver slat and frame construction the combination of: a frame having a side member provided with an inwardly offset portion forming a ledge; said inwardly offset portion having notches extending therethrough and disposed to receive the ends of slats when inserted in said frame; slats pivotally disposed in said frame and having arcuate bearing portions at their ends and disposed adjacent said ledge; and a holding member engaging said ledge and bridging said notches, said holding member disposed between said ledge and the bearing portions of said slats to prevent displacement of said bearing portions through said notches and means retaining said slats adjacent to said holding member.

2. In a louver slat and frame construction the combination of: a frame having opposed side members each provided with an inwardly offset portion forming a ledge; each of said inwardly offset portions having notches extending therethrough and disposed to receive the ends of slats when inserted in said frame; first slats pivotally disposed in said frame and having arcuate bearing portions at their ends and disposed adjacent said ledge; and a holding member engaging said ledge and bridging said notches, said holding member disposed between said ledge and the bearing portions of said slats to prevent displacement of said bearing portions through said notches; second slats angularly intersecting said first slats and supported in said frame, said first slats held adjacent said second slats by means of said holding member supported on said ledge and retaining said bearing portions of said slats.

3. In a louver slat and frame construction the combination of: a frame having opposed side members each provided with an inwardly offset portion forming a ledge; each of said inwardly offset portions having notches extending therethrough and disposed to receive the ends of slats when inserted in said frame; first slats pivotally disposed in said frame and having arcuate bearing portions at their ends and disposed adjacent said ledge; and a holding member engaging said ledge and bridging said notches, said holding member disposed between said ledge and the bearing portions of said slats to prevent displacement of said bearing portions through said notches; second slats angularly intersecting said first slats and supported in said frame, said first slats held adjacent said second slats by means of said holding member supported on said ledge' and retaining said hearing portions of said slats, said second slats fixed in said frame and having V-shape'd notches within which said first slats are pivotally disposed.

4. In a louver slat and frame construction the combination of: a frame having opposed side members each provided with an inwardly offset portion forming a ledge; each of said inwardly offset portions having notches extending therethrough and disposed to receive the ends of slats when inserted in said frame; first slats pivotally disposed in said frame and having arcuate bearing portions at their ends and disposed adjacent said ledge; and a holding member engaging said ledge and bridging said notches, said holding member disposed between said ledge and the bearing portions of said slats to prevent displacement of said bearing portions through said notches; second slats angularly intersecting said first slats and supported in said frame, said first slats held adjacent said second slats by means of said holding member supported on said ledge and retaining said bearing portions of said slats, said second slats fixed in said with an inwardly offset portion forming a ledge; said.

inwardly offset portions having notches extending therethrough and disposed to receive the ends of slats when inserted in said frame; slats pivotally disposed in said frame and having arcuate bearing portions at their ends and disposed adjacent said ledge; and a holding member engaging said ledge and bridging said notches, said holding member disposed between said ledge and the bearing portions of said slats to prevent displacement of said hearing portions through said notches, said arcuate bearing portions of said slats having a radius equal to one half the thickness of the slats; and means retaining said slats adjacent to said holding member.

References Cited in the file of this patent UNITED STATES PATENTS 2,034,231 Fox Mar. 17, 1936 2,626,556 Davies Jan. 27, 1953 2,630,053 Kennedy Mar. 3, 1953