Патент USA US2104907код для вставки
Jan. 11, 1938. D_ NEUMANN ‘ 2,104,907 VENETIAN BLIND ‘ Filed July 6, 1936 5 Sheets-Sheet l ’ Egg/5 Zara‘ _ aw W477i] %% A Jan. 11, 1938. » ‘ D. NEUMANN 2,104,907 VENETIAN BLIND Filed July 6, 1936 \ 1' ' ‘1:’ 5 Sheets-Sheet 2 ME 70 .1 Zen/a’ ?zz/27742777 I _ Jan. 11, 1938. D. NEUMANN VENETIAN BLIND Filed July 6, 1936 2,104,907 Patented Jan. 11, 1938 2,104,907 A‘U'NIVTED STATES PATENT‘ OFFICE ' - mam... ' " - David Neumann, mileage, Ill. BCIaims. (Cl. 156-17) The present} ‘invention relates to Venetian provide a Venetian blind so that all parts of it blinds.- ' ‘ in which'the blind or blinds may be installed. mounted at the top of a window or other frame. in the component parts are of sheet metal and The construction of} Venetian blinds as carried ‘10 out at. the present time constitutes fire hazards _ harmonize with a decorative scheme of a room 5 ' A still further object of the present invention is to provide a Venetian blind construction where adapted- to the usual type of suspension, and which at the same time eliminates the blind as a . 10 and also require constant cleaning, and at the ?re hazard and also permits suitable decoration same time do not lend themselves very readily to decorations of such character as to harmonize thereof to suit the user's taste. with surrounding decorative matterrof the room ‘ The above,_other and further objects of the ' present invention will be apparent from the fol lowing description and accompanying drawings. 15 15 or rooms in which installed. An'object of the present invention is to pro The accompanying drawings illustrate an em vide a'Venetian blind construction, wherein the bodiment of the present invention, and the views slats are of thin sheet metal suitably reinforced so as not to bend under ordinary conditions of 20 use, together with reinforced tilting bar and bot tom bar, and in addition, the utilization of a spring roller for collapsing or closing the blind. ' Another object of the present invention is to , provide a Venetian blind construction wherein the ' 25 tilting and bottom bars are of metallic construc I tion, suitably reinforced, and each of which bars carries certain parts of the operating mechanism of the blind. ' A further object of the present invention is to - 30 provide sheet metal slats suitably reinforced. Another object of the present invention is 'to provide, in a Venetian blind constructic .‘l, a spring roller for raising or closing the blind. ' may be suitably decorated, as by painting or by plating, such as nickel or chromium plating, to Ordinarily, Venetian blinds are constructed with a'series of slats of wood connected together and supported by ladder‘ tapes of woven or like fabric. The slats are suspended by the tapes from a suitable supporting bar 'or header bar suitably A yet further object of the present invention 35 is the provision of, a bottom bar provided with means for latching the bar in any desired ad 'justed‘ position, against the tension imposed on the bar by the spring roller. thereof are as follows: 7 _ Figure 1 is a broken away elevati?'lal view of a Venetian blind,-constructed in accordance with the principles of the present invention,‘ shown opened in a window frame. ' Figure 2 is a view partially in section and 'partiallyvin end elevation, looking at the right hand of Figure 1, wherein the window frame parts 25 are shown in section and the blind parts in end elevation. - Figure 3 is a fragmental enlarged view of one of the guides for the bottom bar, showing a plurality of lugs struck out from the guide and 30 serving as stops for engagement by'cooperating members on the bottom bar, and showing in sec tion one of the cooperating parts in engagement with one of the lugs to hold the blind in desired open position. ' ' 35 Figure 4 is a fragmental top elevational view of the header- of the present invention, showing the spring roller partially in plan and partially Still another object of the present invention‘ in section, which illustrates details of construc 40 is to provide a bottom bar with protruding, end‘ tion. wise movable members which cooperate with stop a ' Figure 5 is a planvview of the underside of on members formed \in the guides for the bottom , of the metallic slats of the present invention Figure 6 is an enlarged end view looking at the any desired vertical position. ' left hand end of the header of Figure 1, and show bar, whereby the bottom bar may be latched in 45 - ‘. The present invention contemplates as an ad— bracket and in turn the manner of connecting the spring roller and wherein the tilting bar, bot Figure 7 is a view partially in section and par tially in elevation, taken substantially in the plane tom bar and intervening slats are all so associ _ 50 ated with the header that the blind as a unit may be applied to or removed from'a frame. Another and still further object of the present ‘invention is’ to employ ?at metallic strips as the lifting elements for the blind. . ing the manner of supporting the header in its 4,5v ditional'object the provision of a Venetian blind construction wherein a. header- bar carries the A further feature of the present , x - to tiItingbartotheheader.--' ' ‘ . indicated by the 'line VII-VII of Figure 1, show- 50 ' ing in full lines the positions occupied by the tilting bar, bottom bar and slats when the blind ' is extended or opened and the slats are in hori zontal position, and showing in dotted lines the slats tilted in one direction to illustrate the man- 55 2,104,907 2 a ner in which the blind may be moved so that the slats overlap one another to prevent openings Within the header B, a spring roller G is sup ported for rotative movement in both directions. through the blind. In the roller, axially thereof, 1.? a rod 8 which at - Figure 8 is an elevational. view of one of the one end of the roller, the right hand end as viewed two-part links utilized'for connecting together in Figure 4, projects beyond the end of the roller the slats of the blind. and enters a circular opening 9 in a bracket Ill \ Figure 9 is an end elevation, looking at the which is suitably fastened to the bottom 8 of right hand end of the arrangement of Figure 1, the header. A nut H or other fastening means showing the header and its supporting bracket - is employed to ?x the relative position of the rod 8 and the roller G. The other end of the roller 10 10 and showing a wheel which is attached to the tilt ing bar for tilting it to change the angularity G is provided with a cap“ which is centrally of the slatsof the blind and showing one form apertured to receive the hub I3 of a member extending through the aperture outwardly of the of tiltingthe bar or oscillating the wheel. Figure 10 is a fragmental elevational view of cap. I At the inner end of the hub I3 is a head It to rest ‘against the interior of the cap l2 and to 15 the joint‘ between the two members of the con necting links showing the arrangement of the serve as 'an abutment for one end of a coiled spring l5, which spring is wound about the rod stops to limit the hinging movement of the mem 8 and, somewhere within the length of the roller bers of the links in such direction as would pre - vent inward hinging action of the links when . 20 the blind is moved to closed position. Figure 11 is a fragmental front elevation show ing the manner in which the header is supported in its bracket and in turn the mannerin which ' the tilting bar is supported by the header.‘ Figure 12 is a- central view through the tilting 25 bar .of the present invention, showing one-half of the tilting bar and illustrating certain details of construction ‘so and arrangement. _ ' > Figure 13 is a view of one-half of the bottom bar, showing in section a longitudinally extend ing guide tube wherein operate the latch members of the present invention. _ ~ . ' Figure 14 is an enlarged vertical sectional view taken substantially in the plane indicated by the 35 line XIV--XIVv of Figure 13. . Figure 15 is a fragmentalvertical sectional view ~ G is fastened to the roller. The head 14 and hub l3 are bored to receive‘ the extremity of the 20 rod 8 projecting beyond the roller G at this end, where the projection is ?attened to provide a rectangular end l6 which enters a slot I'I formed in a plate I8 suitably secured to the bottom I of. the header B adjacent the left hand end of the roller G.‘ The engagement of the ?attened end l6 of the rod 8 prevents rotative movement of - the rod, so that whenever the roller G is rotated about the rod, in operation, the spring I5 is tight ened or loosened depending on the direction of rotation. The spring I5 is so coiled as to cause rotation of the roller G in a direction, normally, to raise the screen to closed position. ' Wound about the roller G, in axially spaced relation, are two‘?at metallic straps l9 and 20, 35 the inner ends of which are suitably fastened to the roller G, and the outer ends of which pass through-suitably. disposed apertures 2| and 22, of the lugs of a guideway for latching, the blind _ . respectivkely,'of the slats E. The lower ends of through one end of the bottom bar showing one of its latching members inengagement with one in open position. . _ Figure 16 is an enlarged fragmentalvertical sectional view showing the preferred manner of attaching one of the lifting tapes of metal to the bottom bar. 45 » The drawings will now be explained. - The tilting bar C is illustrated as fashioned from two halves 24 and 25, one of which, 25, ap pears in plan in Figure 12. These members 24 and 25 are preferably semi-elliptic in end ele-, 45 vation, and along their margins are provided with mounted a'Venetian blind constructed in accord hinges for receiving connecting hinge pins 21 and 28 for joining together the halves. 24 and 25. . ance with the principlesof the present invention. header designated generally as B, a tilting bar designated generally as C, a'bottom bar desig nated generally asD, and a plurality of slats des ignated generally as E. . Referring to Figure 4, it will be observed that the header B is constructed in the form of an ' open box having a bottom I, a rear side wall 2 and a front side wall 3. The ends are open. For re ,movably mounting the header B in a frame A, 60 brackets F are utilized. The brackets F are made as right hand and left hand for application, re spectively, to the right hand and left hand stiles of the frame adjacent the top of the frame. Fig ure- 11 illustrates a left hand bracket which is 65 fashioned of sheet metal suitably formed to pro vide a rear attaching plate I which is secured by means of screws passing through holes 5. Extending forwardly fromthe plate I is an end plate 6 from which a horizontally projecting shelf 70 manner to be later explained. _ Referring to Figure l, A indicates a window frame of conventional construction in which is 50 The blind of the present invention comprises a 55 the straps are secured to the bottom bar D in a 40 1 is fashioned. ' Referring to Figure 9, the left hand bracket F there appearing shows the plate 6 and the leg 1‘. The right hand bracket is of similar construction except, of course, with the angular relationship of the parts 5 and 'i reversed. eyes 28 which are axially spaced to serve as It is to be understood that the hinges 26 of the 50 half 24 will inter?t between ‘the hinges 26 of the half 25. i. _ In order to a?ord intermediate transverse re- . inforcements for the tilting bar C, plates 29 and 38 are inserted in axially spaced relationship, and 65 each plate is apertured at 3| to provide openings through which the metallic straps I9 and 28 may pass. These plates are suitably secured in posi tion against endwise movement. Suitably fas tened to the plates 29 and 311 is a centrally dis 60 posed pipe, rodor similar reinforcement member 32 which thus maintains these plates in ?xed position relatively to each other. Referring to Figure 12, extending to the left from the plate 29 is a similar reinforcement member 33 which 65 stops short of the extremity of the tilting bar. In like manner, extending to the right from the plate 30 is a similar reinforcing member 34, , which likewise stops short of this end of the bar. For closing the ends of the bar C, after the plates 29 and 38 and the reinforcing members 32, 33 and 34 have been inserted, blocks 35 and 36 suitably shaped to enter the ends of the tilting bar C are inserted, the inner faces of each of said blocks being bored as at 31 and 38 to re- 75 3 2,104,907 ceive the ends of the reinforcing members 33 and 34,’ respectively. It will thus be observed that the tilting bar C is provided with transverse as bar 85 which rests at its ends against end pieces 88 and 61 which close the ends of the bar, and which are fastened in position in any suitable Well as longitudinal reinforcements. manner; Projecting from the outer face of the block 35 and in axial alignment with the reinforcements 32, 33 and 34, is a stud 39 having a part 40, a re duced intermediate part 4| and an end part 42. Preferably, the diameters of the parts 40 and 42 10 are the same, while the diameter of the part 4| is less than the diameters of the parts 42 and 40. ’ Axially movable within the pipe 65 and adja cent its ends, are plungers 68 and plunger carries a collar 70 pinned to collars abut the end closures 86 and bar. Inturned lugs ‘II are formed in 69. Each it, which 61 of the the pipe, inwardly of the ends thereof, against which 10 washers 1'2 rest. Springs 13 are interposed be ' Projecting outwardly from the outer face of the tween the collars ‘l8 and washers ‘l2 and func tion to urge the plungers outwardly of the ends of the bar, with the collars 10 against the end pieces 66 and 61. outwardly of the end pieces 15 66 and 61, the plungers are provided with rollers ‘I4 and 15 which travel in channel guides 16 and 17, respectively, secured along the stiles of the frame A. The plungers project beyond the roll ers, a?ording ends 18 which, when the plungers 20 block 36 is a stub shaft 43 which has attached to it, by means of a key 44, a wheel 45. The wheel 15 45 is provided with a hub 46 which surrounds a portion of the stub shaft 43, as may be readily observed in Figure 12. ‘The periphery of the wheel is grooved at 41 to receive av bight of a cord or cable 48 about a portion of the periphery of 20 the wheel, which cable is secured to the wheel by means of a screw 49, as may be observed in are projected, are adapted to engage underneath Figures 9 and 12, to prevent slippage of the cable with respect to the wheel. The wheel is pro vided for the purpose‘ of tilting the bar C, and the cable 48 is provided for oscillating the wheel, the lugs 19 which are struck inwardly from the bottoms of the guides 18 and 11, to thus latch the bottom bar in adjusted position. For retracting the plungers out of engagement 25 depending on which of the ends of the cable is with the lugs, pull cords 88 are attached to the inner ends of the plungers and, at midlength of the bottom bar D, pass over rollers 8| and out wardly through apertures 82' formed in the pipe 65 and the halves 6| and 82 of the bar, where the 30 pulled by the operator. Referring to Figure 11, a bracket H, which in 'front elevation is right angular, has its horizon tal leg 58 attached 'to the leg -1 of the bracket F and also extends beyond the leg ‘I to underlie cords are knotted as at 83 leaving a. handle por a portion of the header 13. Its vertical leg 5| de tion 84 which may be grasped to retract the pends and is provided with a horizontal slot 52 plungers and thus enable closing of the blind or extending inwardly from the front edge of the , movement of the bottom bar upwardly to engage 35 plate 5|. This slot 52 receives the reduced por another set of lugs in the guides. tion 4| of the stud 39 to support the adjacent The upper half Bl of the bottom bar D is pro-' end of the tilting bar C in operative position. vided with elongated slots in register with the In order to latch the tilting bar in the plate 5|, slots 3| in the plates 29 and 38 of the tilting bar, a hook |8| is provided which is pivoted on a whereby the metallic straps l9 and 28 may enter 40 stud 53 and has spacedijaws 54 to define a recess the bottom bar and be secured about the pipe - which ?ts over a part of the reduced diameter 65, as is shown in Figures 7 and 16. The straps portion of the stud, when the tilting bar is in are brought around the pipe 85 and the free end place. The jaws ?t against the end portion 42 secured to its strap by means of a bolt 85 or like of the stud to lock the tilting bar against end attaching means. wise movement. This arrangement may be The halves 24 and 25 of the tilting bar C are readily observed in Figures 6 and 11.. provided with transversely extending elongated slots 88 and 81, through which the straps |9 and A similar bracket is secured to the bracket F at the opposite end ‘of the frame, which bracket has a depending portion 55 with an aperture 58 in it to receive the stub shaft 4‘; of the tilting bar C, as may be observed in Figure 12. After _ ~ metal. In order to rigidify the slats, the side margins thereof are underturned and crimped, as illustrated at 88 'in Figure 5, and along the ends of the slats are reinforcing pieces 89 secured as by welding or in any other suitable manner. 65 This construction therefore rigidi?es the slats to such an- extent as to prevent the slats from bending or becoming distorted under normal tilting bar is locked in ‘position by the hook |ll| as just described, the wheel 45 is applied to the stub shaft. The plate 55 is providedwith a plu~ rality of indentations 51 (Figure 9) with any one of which a spring pressed detent 58 cooper ates to retain the tilting bar C in any- position conditions of use. to which it'is tilted by actuation of the cable 48. In order to permit the metallic straps l9 and 60 . ‘The detent 58 is carried in a recess in the wheel 20 passing through the several slats, apertures 45, as maybe observed in Figure 12, and is urged ’ into engagement with any one of sions 51 by means of a spring 59 tained in the recess. A cover plate over the wheel, as shown in Figure 2| and 22 are formed in the slats in proper spaced relation, with the metal cut away by the forma tion of the apertures being bent back, as at 95 the depres suitably re 68 is applied 12, to cover in Figure 5, to afford rounded surfaces for con tact with the metal straps and thus prevent abra 65 it, which plate is removed from the arrangement sion‘ of the straps. of Figure 9. < Metallic links K are utilized to connect the I , Q ’ ' ‘ The bottom bar Dis likewise formed of two slats E, the tilting bar C and the ‘bottom bar ‘D 70 halves GI and 62, the lower half 82 being shown in'proper relationship. ,The marginal portions in Figure 13. The margins of these halves are provided with hinges 63 for receiving hinge pins 64’ for connecting 'the ‘twohalves together in operative relation. Extending longitudinally 88 of the slats, in being rolle'd'back provideifor receiving hinge pins to connect‘ the various links _ 45 The slats E are fashioned from ?at sheet 50 ture 58 and the stud 39 at the other end of the a‘ 40 28 pass, to enable tilting of the bar about its axis, as shown in Figure 7. the stub shaft 43 is inserted through the aper in- 35 . KtotheseveralslatsE. ‘ I 70 - Every link consists of two members ‘9| and 92 . 75 1 and interiorly of the bottom bar D is a pipe or ' (Figure 8). which are fashioned from strips of 76 - 2,104,907 thin ?at metal. members 9| and 92 are thesame, so that‘ the description of one will suf ?ce for both. The link member 9| is, at its against the tilting bar. When it is desired to open the blind, fully or partially, the handle 84 of the cord is grasped and pulled downwardly,v upper end, formed‘ with three projections 93_ which‘ action pulls the bottom bar downwardly ~ which are separted by slots lengthwise of the and lowers the slats. If the blind is fully extended, the operator puts projections, with shoulders 94 formed near the his hand on the bottom bar, or if the blind is bases'of the slots. At the other end, the mem- ' partly lowered, on the uppermost of‘ the collapsed ber_9| is formed with projections 95, two in num ber, which are separated from each other by a slats which are against the bottom bar, and're-v leases the pull on the handle 84, whereupon the 10 slot having, shoulders 96 adjacent the base of the slot. outwardly of each of the projections 95, the plungers 68 and 69 ‘are projected into position to metal is cut away, with shoulders 91 outwardly of underlie adjacent lugs 19 in the guideways, thus the projections 95. The projections 93 and 95 are latching the bottom bar in desired position. The then curled to provide eyes for receiving hinge bottom bar is held against the lugs because of the. fact that the metal straps‘ l9 and 20 are al 15 pins. The two members 9| and 92 of ‘a link are connected together by assembling the members ways under tension. When it is desired to close the with the rolled over projections 95 entering the bases of the slots between the projections 93 of die 84 is graspedand pulled, thus retracting the plungers to, disengage from underneath the re an adjacent member with a spindle pin 98 pass spective lugs ‘I9, whereupon, still ‘maintaining a ing through the eyes of the rolled over projec ' 10 15 b1ind,'the ham, 20 tions, thus forming a hinge. , I The uppermost slat E is connected to the tilt ing barv C by a par of these hinged links K. The by rotation of the roller G in the proper direction . as in?uenced by its spring l5. It will be observed that the Venetian blind construction of the present invention utilizes a spring roller for automatically raising or clos ing the blind when the bottom bar is unlatched from its retaining means in the frame. This ac upper'eyes of the upper member 9| receive a hinge pin 28 which at the same time connects together the halves 24 and 25 of the tilting bar. The lower eyes, fashioned as heretofore de scribed, of the member 92 are connected by a‘ so. hinge pin ‘Hill which extends through the rolled over margins 98 of the uppermost slat E. tion eliminates the usual raising ‘cord employed 30 in Venetian .blinds and, in fact, makes the op In-like manner, the several slats are connected eration of the blind as simple as that of lowering or raising of a shade of the type now in general together in parallel relationship. The bottom bar D is connected to the lowermost ‘slat E in the same manner. 35 ~ use. ' The utilization of metallic straps for raising the blind structure enables decoration of these straps in any desired manner. The fact that the entire blind structure ismade of metal enables ' quantity production at nominal costs. .A blind constructed in accordance‘with the present in 40 vention is e?icient protection against ?re, as any By the formation of the shoulders 94, 96 and 91 heretofore mentioned,'hinging movement of the members 9| and 92 of any link is limited to - substantially the position shown in full lines in Figure 7. That is to say, these links cannot hinge to ‘such ‘a point as to collapse outwardly of the margins of the slats when the blind is closed. Figure 10 illustrates in a larger scale the hinged joint heretofore described between a member 9| in?ammablematter dropped on the blind will not burn it. The blind of the present invention also lends itself to redecorative purposes at mini and a member 92 of a link K, and showing the 45 vshoulders out of abutting relationship. mum cost. bar C. The invention is claimed as follows: 1. In a Venetian blind construction, a tilting bar comprising two concavo-convex sheet members 55 ers in the bottom bar are removed from 'the guides, thereby permitting~ unitary removal of 55 the Venetian blind from the frame in which it removably secured together along their margins . The blind of the present invention is installed in any frame A, ?rst, by fastening in position the brackets F and the guides 16 and 11, where 60 upon the blind structure as a unit is applied by 45 ment and proportion of parts, and equivalents 50 may be substituted, without departing from the spirit arid scope of the invention. The reason for this is that the header may be slipped outwardly from its supporting bracket F, and the rollers 14 and 15 of the plung is installed. > The invention has been described herein more or less precisely as'to details, yet it is to beun derstood that the invention is not to be limited thereby, as changes may be made in the- arange_ The side guides 16 and ‘I1 extend substantially the full height of the stiles in the frame 'A, stop ping short, however, of the lower portions of the bracket members 5| which support the tilting 50' 20 pulling pressure on the handle, the upper bar is allowed to raise, which raising is accomplished and with theconvex surfaces outermost,‘ ?at re inforcing plates within said bar extending cross wise and lengthwise thereof in'lengthwise spaced 9 , relation, plugs closing the ends of said bar, a sup 60 inserting the rollers 14 and ‘I5 in the guides 16 and‘ ‘II, respectively, and then sliding the header’ B inwardly on the ledges ‘I of the brackets F. The blind is then ready for use. In so applying 65 the blind, the tilting bar C has previously been porting pivot projecting from one of said plugs and adapted to engage a- supporting bracket, a pivot projecting from the other of said plugs and carrying a wheel keyed to it, a plate supporting thev hub ‘of .said‘ wheel as a journal, lengthwise 65 extending reinforcing means connected between is’ latched in position in the' brackets, by means . said plug- and plate to provide longitudinal ri attached to the brackets for supporting it and of the hook |0|. \ ' As thus installed, the cables or cords 49 extend » ' 70 forwardly and may at their extremities be pro vided with handles for easy gripping-and for tilting purposes. By reason of the tension placed on the straps l9 and 20 through the medium of the spring I5, the blind is normally maintained 75 in closed position, with all of the slats resting ‘gidity, said sheets and plates being apertured for passing raising straps therethrough, and‘the apertures in said sheets being longer widthwise 70 of the bar than the apertures in the plates to en able oscillation of said bar about its pivotal sup . port without bending said straps. 2. In a Venetian blind construction, a tilting , bar comprising two concave-convex sheet mem 15' e r gins and with the convex surfaces outermost, re inforcing means within said bar, closure means for the ends of the bar, and means projecting outwardly from said closure means serving as centering means for said bar as it tilts. 3. In a Venetian blind construction, a tilting bar comprising'two concavo-convex sheet mem bers arranged with convex surfaces outermost 10 and connected together alongv their margins by eye and pintle pin joints, closure means for the ends of said bar, and means extending outwardly of said closure means and lying in the longitudi nal axis of said bar for engaging cooperating means to therewith serve as the axis of tilt of said bar. ' ' - 4. In a Venetian blind construction, a tilting - bar comprising two concavo-convex sheet mem bers arranged with the convex surfaces‘ outermost 20 ‘and connected together along their margins'by eye and pin joints. and closure means for the ends of‘ the bar. a 5 2,104,907 bers removably secured together along their mar ' ‘ ‘ 5. In a Venetian blind’construction, aplurality of elongated metallic slats each having its longi tudinal margin rolled back to provide pin-re ceiving sockets with portions of the rolled back margin cut away to de?ne a recess to receive the end of a. hinge link, and metallic hinge links con necting spaced opposed slats to maintain them in connected and parallel relation‘ to each other, said links each having an end entered between rolled back portions of the longitudinal margin 10 of a slat and hinged to said slat. - 6. In a Venetian blind construction including a plurality of elongated slats and hinge links hinged to the longitudinal margins of the slats to maintain the slats in superimposed parallel 15 relation to each other, an elongated metallic slat having its longitudinal margin rolled back to de?ne pin-receiving sockets with portions of the rolled back margin‘cut away to receive the end of a hinge link. 20 . DAVID NEUMANN.