US2605648A - Operating handle - Google Patents

Description

Aug. 5, 1952 R. c. SANDERLKN ET AL OPERATING HANDLE Filed July 18, 1949 2 S1 lEETS-SHEET 1 Ralph GSonder/ir;

d M Granf INVENTOR.

Fre

OPERATING HANDLE 2 SHEETSSHEET. 2

Filed July 18, 1949 39 22 Ralph a. San o'er/in F red M Gran? IN V EN TOR.

Patented Aug. 5, 1952 OPERATING Application ams, 1949, Serial .5 claims. (01. 74-52 This invention relates to. new and useful improvements in operating handles and more particularly to handles for operating andlocki'ng jalousies in adjusted positions.

One object of the invention is to provide an improved handle for operating a jalousie or external Venetian blind which is so constructed that the same may be locked in any position to prevent operation of the jalousie.

Another object of the invention is to provide an improved operating. handle having coacting wedge surfaces adapted to be tightly engaged for locking the handle against operation. j

Still another object of the invention is to provide an improved operating handle having a rotatable lever and cam means actuated by the lever for moving conical surfaces into tight engagement so as to lock said lever against rotation. 7

A further object of the invention is to provide an improved operating handle, of the character described, having a cam ring rotatable with its lever and movable transversely thereof, the lever being pivoted in the plane of moveemnt of the cam ring whereby said ring undergoes transverse movement relative to said lever so as to facilitate locking and unlocking of the handle.

A construction designed to carry outthe invention will be hereinafterdescribed together with other features of the invention.

The invention will be more readily understood from a reading of the following specification'and by reference to the accompanying drawings, wherein examples of the invention are shown, and wherein: I I

Fig. 1 is a perspective view of an operating handle, constructed in accordance with the invention, shown mounted on a jalousie,

Fig. '2 is a side elevational view of the handle in a locked position, its unlocked position being shown in dotted lines, r I

Fig. 3 is an exploded perspective view of the handle,

Figs. 4 and 5 are enlarged, transverse, vertical sectional views of the handle in lockedandunlocked positions, respectively, a v

Fig. .6 is an enlarged perspective view of vthe inner end portion of the pivotal, rotatable lever, and r Fig. 7 is a perspective view, partly in section, of a slightly modified form of handle.

In the drawings, the numeral 10 designates a portion of an external Venetian blind or jalousie' mounted upon the frame or jamb H of a windowor other opening. Thejalousie, which forms no part of the present invention, includes,

aplurality of transverse louvers having lateralwings or flanges l3 at their ends pivotally con-- nected to a frame [4 and adapted to be tilted by a flat actuating rod or bar l5. A pair of links [6 and I! are pivotally attached to the bar I5 for connecting an operating handle I8 there.- to whereby rotation of the handle causes tilting of the louvers [2. A shaft l9, preferably polygonal in cross-section, extends through'the' jamb H andconnects the handle [8 to the link 11. The handle includes a base or'escutcheon plate 20, an element or spindle'll rotatably mounted in the plate, an iactuatinglever l'l pivotally connected by a pin' 23 to-the spindle," and a:cam member or ring 24 confined upon said spindle between the lever and plate (Fig. 3).

The plate 20 is substantially flat and rectangular andhas openings 25 in its endsso as to be connected to the jamb-I lby suitable screws '26. A transverseboss 21, which may be stepped externally, is made integral with-the intermediate portion of the plate and acylindrical opening or bore 28 extends through said-plate and its boss. The inner or'major portion. of the'bore 28 istapered or flared outwardly toward the underside of the plate so as to-provide a conical counterbore or'wedge surface 29. .The spindle 2! includes a substantially cylindrical body 30 of a length greater than the length of the bore 28. so as to project beyond the boss 21 when engagedin said bore. A'conical' shank or wedge surface 3|, complementary to the conical surface 29, is formed on the inner endportion of the spindle forcoacting with said conical; surface to lock or wedge said spindle against rotation. Dueto the conical surfaces, outward movement or displacement of the spindle is limited. As shown by the numeral 32, the major portion of the spindle is flattened on opposite sides so as to be substantially rectangular or oval "in cross-section. Between the conical and flattened surfaces 3| and 32,v a circular portion 33 is providedfor coacting with the cylindrical bore 28 in maintaining the spindle in axial alinement with said bore; A-transverse opening 34 is formed in'the outer end of the spindle to receive the pin which connects the lever 22 to said spindle and said outer end is preferably rounded as shown by the numeral 35. The conical shank of the spindle has a polygonal socket 36 formed therein for receiving the shaft I!) (Fig. 5). I

The lever has a curved handle portion 31 with an enlarged head38 at its innerend. A deep, rectangular recess'or socket 39,-having a curved bottom 40 complementary to the rounded outer head opposite the-handle portion Manifestly, rotation may be imparted to the spindle by turning the lever.

by the provision of therecess and the'inner As shown in Fig. 6, a pair of inwardly-directed, opposed cars 43 areformed ends of these ears are curved -or-bevelled 'out-' 7 wardly and longitudinally to providecams or cam faces 44 for coactin with the cam rin 24.

The latter is preferably circular iand 'haswan elongate opening or slot 45 through which the fiattened portion 32 of the spindle extends. Thus f the cam ring is rotatable-withthe spindle upon turnin of the lever and.;non-rotatablerelative to: saidv spindle and lever. Itv is enotedthat; the. slot 4 5-is of a lengthfzgreater than the largest width 'of the spindle, whereby transverse movemerit or sliding of the. ring relative to'the lever and spindle is .iper'mittediv 'Inwardly-bevelled camsTor camfaces dfiare fornied in the outer end surface of the ringparallel' to the longitudinalaxis of-its slotfor coacting withithe-camr faces "44." to draw the conicallocking: surfaces 29 and '31 into: tight engagement; f'By'lo'ngitudinally offsetting the slot 'tdwardt the inner fend -of the lever and'relative to the axis of "the-"ring, the low points of' the cam "faces '46 move past the high points of the cam faces I44 upon inward swinging of the leveritoincrease the lockingaction of said fac'e'sfFig. 4) Outward swinging" of the lever c'ausesregi'stration"ofthe' camfaces and disengagement 6f the "conicalor wedge surfaces, which disengagement maybe slight 'and need not be as exaggeratedas'shown in Fig.-5;

In operation? tlie-' -lever is' swung outwardly to unlock the spindle and permit rotation" thereof by mmm br said i leverf The "cam faces are moved into registration by outward swinging of the leverand then the 6am lfih g' iS' sild'liowa'ld the outer endof "said lever '-(Fi g,l5) ="This"permits: inward rnoveme'ntf'of the spindle "and disengagement; nrftlie release of the tightengagement, of the ConicaL'SurfaceS whereby said spiridle may be fre'elyd'otatedto manipulate er adjust the louvers I25 Wheneverit is desired to "lock" the louvers in an 'ladjns't'ed positiomwhich'rna'y' be closed," full'ybpe'rf-or any positioirth'erebetween, the lever is swun -inwardly. ffDue toth registration of the card faces' fthe slides toward the'in'ner'end-of lever ammo axial le fFig. 4); Continued 7 alinement with thef sp inward swinging 'ofjthe l'ever results in the .cam faces 447' riding slightly past registration with the cam faces AS, so. as} to draw the. spindle outwardly and tightly engagefthelconical surfaces'of the bore and spindle; w Thus, the spindle agai is locked-against rotation,

In Fig. 7 a slightly-=modifiedform of handled? is shown andiinclude's: an: identical base or escutcheon plate48, cam ringf49, lever'5fijand a similarspindle 5i; 'Thel'atter is'identical to the spindle 2:with the exception of the-socket 36. A cylindricalsha'ft52, having a flattened outer end portion 53, is made integralwith ofis otherwise permanently securedtothespindle 5| for connection "with theqli i ill .1 jDu'ejto the; fl nlif larity pf construction ragrniioper ation of the modi-i fled handle, a detailed description thereof is unnecessary.

The foregoing description of the invention is explanatory thereof and various changes in the size, shape and materials, as well as in the details of the illustrated construction may be made, 'within the scope of the appended claims, without departing from the spirit of theJinventiQn.

What we claim and desire to' secure by Letters Patent is:

1. An operating handle including, a base, an element rotatably confined in the base, a lever pivotally connected to the element, said base and element having coacting tapered surfaces adaptas to be engagedifor locking said element against rotation, and a cam member carried by and rotatable With said element and adapted to coact with the lever for urging the coacting tapered surfaces into engagement upon pivotal movement of said lever relative to said element, the cam member beingmovable-transversely of said element upon pivotal movement of said'le'ver to facilitate locking and unlocking of said element.

2. An operating handle including, a basaan element rotatably confined in'thebase ja lever pivotally connected to the element, said base and element having coacting wedge surfaces adapted to be moved into tight engagement for locking said element against rotation; and a cam ring confined upon said element between said base and lever and -rotatable withsaid element and movable transversely thereof for urging" the Wedge surfacesinto engagement upon relative pivotal movement of said lever irrespective of its rotative position.

3. An operating handleincludingan escutcheon plate having a bore, a portion of the bore being conical, a spindle rotatably mounted in said bore and having a complementary conical portion, a lever pivotally connected to the spindle, and a cam ringconfined upon said spindle between the plate and lever so as' to be rotatable with said spindle-,the cam ring being'engaged by said lever and being movable transversely of said spindle upon pivotal movement of said lever for urging the conical surface of said spindle into tight engagement with the'oonical portionof said hole for locking said spindle against rotation.

'4. An operating'handle including, an escutcheon plate having a' bore, a portion of the bore being con'icaLa spindle rotatably mounted in said bore and having a' complementary conical portion adaptedto be tightly engaged with the conical bore portion for locking the spindle against'rotation, a lever pivotally connected to said spindle, and a cam ring confined between the plate and lever upon said spindle so'asto be rotatable therewith, the lever and cam ring having curved faces for coacting with eachother, saidring, being slidable transversely of said spindle upon pivotal movement of said lever so as to'move the curved faces into and out of registration and 'causelongitudinal movement of saidspindle to lock and unlock the same.

5. An operating handleincluding, an escutc'heon plate having a bore, a portionof the bore being conical, a spindle rotatably mounted in said bore and having a complementary conical portion adapted to bev tightly engaged with the conical bore portion for locking the spindleagainst-rotation, a lever pivotally connected to said spindle, and a cam ring confined between the, plate and lever upon said spindlekso to be rotatable therewithlthe lever andcam ,ring having curved faces for 'coactingl fwith each other upon pivotal .5 movement ofsaid lever so as to cause longitudinal movement of said spindle to lock and unlock the same.

6. An operating handle including, a base, an element rotatably confined in the base, a lever pivotally connected to the element, said base and element having coacting tapered surfaces adapted to be engaged for locking said element against rotation, and a cam member carried by and rotatable with said element, the cam member and lever having cam faces coacting with each other to move said element longitudinally for urging the coacting tapered surfaces into engagement upon pivotal movement of said lever relative to said element, said cam member being movable transversely of said element upon pivotal movement of said lever so as to move the cam faces into and out of registration.

RALPH C. SANDERLIN. FRED M. GRANT.

REFERENCES CITED UNITED STATES PATENTS Name Date Wilden May 13, 1950 Number

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