Патент USA US2110040код для вставки
l, 1938. M. L. DUSKIN ET AL 2,110,040 , VENETIAN BLIND STRUCTURE Filed Jan'. 6, 1937 24 ¿9.1. 4 L . im / 52.0.. Patented Mar, 1, 1938 ' 2,110,040 l UNITED; STATES _PATENT OFFICE ' Morris L. Duskin and Hâïbert L. Magill, Chicago, Application January 6, 1937, serial No. 119,184 17 Claims. (c1. 150A-17)v 5 ' g 10 lThis invention relates to Venetian blinds. One . connected or hinged together so that they will object of the invention is to provide a blind of fold up when the slats are lifted by supporting this .type adapted to be made of durable moisture- _ means independent of the straps for collapsing proof materials so as to be readily cleanable and the blind in the usual manner. In addition, these to resist deterioration. Another obîect is to pro hinged links may be iitted with removable panels 5 vide a Venetian blind with supporting straps _of colored materiaL-preferably some synthetic adapted to include ornamental color panels which composition,-sc that the straps may serve to add may be changed at will to secure various decora a decorative touch to the blind, which may be tive color schemes. -Other objects will appear as varied by changing the panels of one color for the description proceeds., The invention consists those of another, when desired. ' 10 in various features and elements of construction . In the drawing, Figure- 1 shows a portion of a ' in combination, as hereinshown and described and as indicated by the claims. In the drawing: l5, ’ Figure 1 is a face view elevation of a portion of a Venetian blind constructed in accordance with this invention, the upper supporting struc ture being omitted, and the middle portion of the blind being broken away to condense the- _2o view. Figure 2 is a plan view of one'of the slats. Figure 3 is a detail section taken as indicated at line 3_3 on Figure 1, showing the slats in section and one pair of supporting straps in side 25 Y elelatlon. i , Figure 4 is a detail elevation looking in the di-' rection of arrows, 4_4, on Figure 3. Figure 5 is a view similar _to Figure 4, on a larger scale, and showing connected portions of r 30 the slats in section. - « Y Figure 6 is a detail section taken as indicated at line 3_3 on Figure 5. Venetian blind comprising slats, I, connected by supporting straps each consisting of links, 2 and 3. - v As seen in Figure 2, each slat, I, has its longi tudinal margins formed into tubular beads, 4, 15 which may be interrupted by notches, 5, cutting through the beads, preferably near the ends of Jthe slat to accommodate the supporting straps or chains. The links, 3, of the straps include lat erally projecting pivot studs or pintles, 6, which 20 extend into the tubular beads, 4, for pivotally connecting the slats, I, to the supporting straps. ' In each supporting strap or chain the links, 3, alternate with the links, 2, so that one link of each type constitutes a pair extending between 25 consecutive slats, I, I. Each link, 2, includes side bars, 1, l, and infthe form shown these side bars I are connected permanently by a cross-bar, 8. At their ends the side bars are formed >with termi nals, 9, which are apertured for pivotal connec- 30tion with the adjacent links, -3. Each of the links, 3, includes side bars, ID, I0, Figure 7 is a detail section taken as indicated which. in the form shown, are not connected to 35 at line 'I_'I on Figure 5. each other but are held apart in spaced relation Figure a 1s a datan section taken as indicated by a panel or filler, II, vwhich may be of any 35 at line 8_8 on Figure 5`- _ . I suitable material, and is preferably made of some Figure ,-9 is a side viewof the pair of links shown in Figure 5, and taken partly in section, as indicated at line 9_9 on said Figure 5. Figure l0 is a detail perspective view of a spring catch device. - ' _ The usual construction for Venetian blinds in ` cludes ilat wooden slats and supporting tapes of fabric connected by cross-tapes on which the45 slats are removablylodged, and which serve for tilting them to various degrees of inclination, as controlled by the manipulation of the tapes from the supporting structure above. lThis invention undertakes to supply an improved form of slat 50 which may be constructed of sheet metal, and to supply a more durable and cleanly form of strap which may also be made of metal. To render these straps sui’ilciently flexible to permit'col C lapsing the blind in the usual manner, they are A55 constructed of a series of rigid links pivotally such synthetic material, as Catalin, Pyrolin, Bakelite, Celluloid,A or some similar compound, which may be, molded in the desired shape. The > side bars, III, I0, are formed with terminals, I2, 40 adapted to interlap the terminals, 9, of the links, 2, and said terminals include laterally projecting pivots to engage the apertures of the terminals, 9. At one end of the link, 3, the- pivots, I3, are only long enough to extend into the terminals, 9, of the next link, 2, but at the other end the pivots, 5, are long-enough to extend through they terminals, 9, and into the adjacent ends of the tubular bead, 4, of a slat, I. If the desired proportions of the bead, 4, are such asto render it too large to 50 iit\snugly over the pivots, 6, the end portions of the bead adjacent the notch, 5, may be formed to a smaller diameter, as seen at I4 in Figure 5. In assembling the parts the terminal lugs, 9, 9, of one of the links, 2,wi11be positioned 1n a notch, 55 2 2,110,040 ' 5, of a Slat, I, with> the aperturesof the lugs, 9, aligned with the tubular terminals, I4, of the bead, 4. 'I'hen the twoside bars, I0, I Il, of a link, -3, will be moved into position carrying their piv ment, and to limit them to the angular relation seen in Figures 3 and 9. Thus, when the links are caused to fold by the lifting of the slats, I, the initial angle between links, 2 and 3, will mere ots, 6, through the apertured lugs, 9, and into the l ly be reduced, causing the pivots, I3, to move bearing tubes, I4. At the same time, at the outward-that is, away from the' beaded edges opposite ends of the bars, I0, I0, their pivots, I3, of the slats, I, until the links, 2 and 3, can col will be ñtted into the terminal lugs, 9, of another lapse upon each other inA substantially horizon link, 2. Then the filler block or panel, II, _is ‘ tal position, as seen in Figure 3. The terminals, 9 and I2, at which links, 2 and 3, are joined on 10 inserted between the bars, I0, I0, to hold them _ apart in proper relation to the adjacent links, 2, 2-. the pivots, I3, are oiïset with respect to the side For holding the panel, I I, in position it is provided bars, 1 and I0, so that the >faces of these bars, which will meet in the folded position, lie in with spring detent devices which may be con structed of spring sheet metal formed, as shown planes extending through the axis of the pivot, I3, and will' thus swing into a common plane when 15 in Figure 10, each with a cylindrical body portion, I5, adapted to ñt into a bore, I6, formed in the ' the bars are folded. As indicated in Figure 3, „ edgeof the panelor filler block, I I. A bent spring the straps or chains at opposite sides of the arm, I1, at the end of the cylindrical body, Il,y blinds are arranged to fold oppositely so that the terminates in a rounded boss, I8, which stands , links, 2 and 3, in collapsed position are disposed normally above the edge surface of the block, II, _outside the vertical planes between which the 20 25 but may be sprung inwardly into the recess which slats, I, are included. is a part of the bore, I6. Each block, II„ may be provided with four of these detents, and each ofv ATo insurefapleasing and relatively simple ap pearance inthe ñnished Venetian blind employ the side bars, I0, of the link, 3, is formed with recesses, I9 and 20, respectively, (see Figures 'l ing these features, the curved outlines of the f ' terminall lugs Vor ears, 9 and I2, of the links may be ofthe same diameter as the beads, 4, and will gaged by the bosses, I8, of these detent devices be accurately aligned therewith; and the ñller when the ñller, Il, is inserted between the bars, ` blocks, II, will be formed at their> ends with and 8) near its opposite ends, adapted to be en I0, I0. The ñller block is thus held removably 30 in position and serves to hold the side bars, I6, in place so that their pivots, 6 and I3, shall re main engaged with the terminals, 9, of the ad jacent links, 2, and with the bearing portions, I4, `of the bead, 4. 35 ' The link, 2, may also have a ñller block or panel, _as seen at 2l, but since the side bars, 1,'1, arev shown permanently connected bythe cross-bar, 8, the function of the filler, 2|, is primarily decor ative. It may be secured in place by forming the 40 inner faces of the side bars, 1, with channels of V-shaped cross-section, as seen in Figure 6 at 22, and correspondingly forming the edges of «the panel, 2l, so that it can be slidably inserted'be tween the bars, 1, from the open end of the link 45 before the next link, 3, is assembled therewith. A strap or chain made up of links, 2 and 3, .as` just described, and connected at intervals to the'-v slats, I, takes the place of the usual fabric straps-f or tapes employed in Venetian blind structures-ì for connecting the consecutive slats and Asup porting them in the extended position of the blind. For collapsing the blindv to draw it clear of the window there is included a bottom bar, 23, which may be simply the bottom slats of the series', sus 55 pended by cords or wires, 24, which pass through suitable apertures, 25, 'in each of the slats, and which are preferably positioned so as to register with the connecting straps or chains composed of links, 2 and 3, so as to be concealed from view. 60 Any suitable winding or operating gear, mounted at the top of the window and not shown herein, serves to draw the cords, 24, upward, thus elevat ing the bottom member, which picks up the slats, I, as it rises‘and collects them in a closely piled cylindrically curved portions, 28 and 29, also of the same diameter as the aligned therewith. Thus defined by the beads, 4, of ried across the vertically beads, 4, and axially the horizontal lines the slats, will be car extending straps or chains without substantial interruption, and, if desired, the parts, 4 and II, may be similarly colored s0 as to give the eiïect of continuous hori zontal stripes in the structure. ‘ vIt'may be understood that when the slats, I, are formed of sheet -metal they may be of any desired non-corrosive composition, or may be 40 given a. non-corrosive finish as by electro-plating or by means of a suitable enamel, and that the metallicvlink structures, 2 and 3, may also be of such composition or ñnish as to avoid corrosion or rust. The filler blocks, II and 2|, if made of any of the,materials suggested, will be moisture proof, and practically impervious to dust, so that they ycan be readily cleaned when required.-v Or dinary dusting and occasional treatmentl ,with a damp cloth will thus keep `the blind indefinitely in4 any attractive and cleanly condition.' f ~ The method of construction permits of readily disassembling the parts for substituting ñller blocks, II and 2l, of va different color, if desired, or for changing the slats, I, to those of a different finish, if occasion arises, for altering the color scheme. Asindicated in Figures 2 and 3, `the slats may bereinforced adjacent the notches, 5, if desired,by¿fcrming upwardly projecting ribs, 30, in theirñat surfaces to insure perfect align ment of the end portions of the beads, 4, with the intermediate parts.v 60 While there is shownand described herein cer tain specific structure yembodying the invention, formation, as seen inthe lower portion of the > it will bemanifest to those. skilled in the art that 65 various modifications and re-arrangements of the view in Figure 1, and also in Figure 3. To per mit this close pilingof the slats, I, the links,'2 ~ parts may be madewithout departing from the' and 3, connecting each pair of adjacent slats, I, ` spirit and scope of the-invention, and that the must fold upon each other, as seen in Figure 3. 70 To insure that they will fold automatically and in‘a deñnite direction, the interlapping terminals’f same is not limited tothe particular vforrn herein shown and‘described, except in so far as indi cated-bythe appended claims.~ v , ~_ ' . 9, at the pivots, I3, are formed with ñat surfaces, 26, which abut corresponding flat surfaces, 21, on theside bars, IIJ, so as to prevent the unfold 75 ing of- adjacent links, 2 and3, into strictalign 1. In a Venetian blind structure a series of slats composed of sheet-metal and each having its longitudinal margins' shaped 'toA form tubular 3 2,110,040 beads, each slat having notches cut through said beads, and supporting straps accommodated in said notches, each strap comprising a series of rigid links hingedly connected, end to end, with laterally projecting pivots engaged in the beads of the slats. 2. In a Venetian blind structure as deñned in claim 1, separate straps engaged with the beads at opposite margins respectively of the slats, and 10 each strap being composed of links in pairs with a pair extending between adjacent slats of the blind, the hinge joints of each pair intermediate minals apertured for connection oi' the side bars with intermediate links, each intermediate link consisting of side bars with outwardly projecting pivot studsvat their terminals whereby the filler serves to hold said bars apart with their pivots engaging the apertured terminals of the said alternate links, the pivot studs at one end of each of said intermediate links extending through and laterally beyond the terminals of the connected link for engaging a slat of the blind. ` i 10 ' 10. In a Venetian blind structure, a series of slats composed of sheet metal and each having its longitudinal margins shaped to form tubular beads, each slat having notches cut through saidj 15 topermit their folding or collapse in one direc beads and supporting straps accommodated in tion only, the joints of said separate straps at said notches, each strap-being composed of rigid 15 -opposite edges of the slats being adapted to col- - links hingedly connected end to end, and each lapse in opposite directions. _ alternate -link comprising a pair of side bars 3. In a Venetian blind structure as defined in spaced apart with a ñller removably secured be 20 claim 1, said links including terminal portions» tween them, the other links including apertured of a contour axially aligned with the tubular terminals adapted to lap the ends of said side beads of the slats and of the same shape so as to bars, and the side bars having outwardly pro appear as substantially continuous therewith. jecting pivot studs extending through the aper their connections with the slats including _means *_limiting the relative movement of adjacent links 4. In a Venetian blind structure as deilned in 25 claim 1, the links of said straps each comprising a pair of side bars and an interposed filler, the tures of said terminals and into the tubular beads adjacent the notches of the slats. 11. In the construction deñned in claim 6, ends of said side bars and of said iillers occupying the notches of the slatsl being co-axial with vthe tubular beads of the slats and of the same shape 30 in cross-section. 5. In a Venetian blind structure, a series o_f spring detents disposed for removably securing slats, and supporting straps each com‘posed of a said i'lller blocks in. place between the -side bars of the links. , » \ 12. In the construction defined in claim 6, the 80 opposing faces of the side bars having recesses and the iiller blocks being provided with spring detents adapted to engage said recesses when series of~ rigid open links hingedly connected, means connecting said slats to the straps, and _ the filler blocks are positioned between the side N ornamental ñller panels fitted removably in the bars. openings of the links to produce a decorative 13. In a Venetian blind structure, a series oi’` slats each composed of sheet material with its 6. Astrap for a Venetian blind comprising a longitudinal marginsv shaped to form tubular series of _links hingedly connected end to end, beads, said slats having notches cut through said 40 each link comprising a pair of vside bars spaced beads, supporting straps each composed of a 40 apart `with a filler blocky secured between them, series of rigid links hingedly connected, and said bars having terminal portions formed for pivotal means projecting laterally at alternate l eii'ect. \ p ‘ _ the pivotal inter-connection of adjacentv links with hinge joints of each strap' and directly engaging the terminals of one link disposed between the in the open ends of the tubular bead of a slat 45 terminals of the next link whereby the ñller 'at opposite sides of the notch therein. 45 block of the ñrst mentioned link serves‘to main* 14. In ,a Venetian blind structure, a series of tain the pivotal connection of said terminals. .slats each formed with‘marginal beads notched ’7. A strap for a Venetian bl‘ind comprising a to accommodate lsupporting straps, and straps series of links hingedly connected end to end, each composed of a series of rigid links hingedly ~ ^ each link comprising a pair of side bars spaced connected, together with p'ivot means each co 50 apart with a ñller block secured between them, said bars'having terminal portions lsome of which are apertured and others of which are provided with pivots to engage such apertures, the filler blocks of alternate links serving to maintain such pivotal engagement. 8. _A strap for a Venetian blind comprising a axial wlth a hinge connection of the links and projecting laterally into direct pivotal engage ment`wlth a-longitudinal bead of the slat at oppo-_ , ~ site sides of the notch therein. 15. In a Venetian blind structure, a series of 55 slats each formed with marginal beads notched to accommodate supporting straps, and straps series of links hingedly connected end to end, each composed of a series of , rigid links hingedly each link comprising a pair of side bars spaced l connected, together with pivot means each co apart with a ller removably secured between axial with.a hinge connection of the links'and 60 , them, the side b rs of alternate links being per projecting laterally into direct pivotal engage i manently joined by a cross-bar, and having'ter «v minals apertured for connection with the side bars of intermediate links, each intermediate link ment with a longitudinal bead of the slat at opposite sidesv of the notch therein, each pair of adjacent slats being connected by two links of a strap, and the hinge connecting the two 65 having its side bars -provided with outwardly pro jecting pivot studs at their terminals, whereby links including features which limit the relative ' the filler serves to hold said bars apart with their movement of the links and permit their folding ‘ pivots engaging the apertured terminals of the for collapse in one direction only so as'to carry 65 " ì said alternate links. g 70 9. A strap for a Venetian blind -comprising a - series of links hingedly connected end to end,each link comprising a pair of side bars spaced apart with a rlller removably secured between them, the side bars of alternate links being per 75 manently `joined by a cross-bar. and having ter said links and their connecting hinge outwardly away from the vertical plane of the blind. 70 16. In a Venetian blind structure, a series of slats notched at their edges to accommodate sup- ` porting straps,‘and straps each composed of a series of rigid links hingedly connected, with piv otal means at each alternate hinge` connection m 2,1 10,040 ' 4 of the strap projecting laterally into pivotal en series of rigid links hingedly connected, with gagement with a slat at opposite sides of the pivot means at each alternate hinge connection projecting laterally into the tubular bead of a slat at opposite sides of the notch for directly connecting the slat to the strap. notch therein. ' - 17. In a Venetian blind structure, a series of slats leach composed of sheet material with a longitudinal margin shaped to form a tubular bead, said margin being notched to accommodate a supporting strap, and a strap composed of a MORRIS L. DUSKIN. HERBERT L. MAGILL.