US1788021A - Roller blind and fittings therefor - Google Patents

Description

41111136, 1931. w. J. HADDEN ROLLER BLIND AND FITTINGS THEREFOR Filed July 2, 1927 0 0 *0 I v wa x A M H| hnHn uuH huu|nib/nu l 1.4 m 5 .o\ u m u m" m mm m 1 2 1. a .n M n. 5 u m m a z. .n 0 r l l l nu .H H H h l l hl h H H .H U l l l l l l l HIIUIIIIIII'IMHIIIIIIW; 4/ Y M w a m a Patented Jan. 6,1931

Rotten B mini) am) iLGTURING-"COMBANY' LIMITED, or -omseow, soon-mam mmmsimmos Application filed my 2,1927 seriai'n'o. 203,145; enamored ni -an JaneQm, 1927.

- This invention relates a roller blinds-of the type ,inclnding means. (such, for instance,

I as a ratchet wheel) held to the blind roller fthe blind preferably that the cord operated is retracted at thev end by friction for permitting the blind to be; lowered to and l-ield in di-iierent positions while said means is held stationary, and refersaIso-to the fittings for said roller blinds; :The object of the presentinventiontls" to provide a roller blind, (particularly adapted for" rail carsand-carriages and, private and public road vehicles) which is capable othe ingoperated from eitherend at will by two gurpose, the roller cords provided for this eing, so arranged ofs each" operation, so asto occupy a fixed position", irrespective ofthe-position of the," blind, whereby, in thevehicles aforesaid, the" V blind cords" and their 'ta'ssels will not, freely means is held stationary. 1

To retract the cord operated, the raising"- swing about, the tassels normally being held up against-the roller or its fitting.

'Acc'ording-to the present invention, the

roller blind is provided at both ends ofthe roller with means "for raisingthe blind,

.IPIIIG'QZIIS for-"normally holding" said raising meansstationary and; means for, holding said raising means to the roller by friction for permitting the blind to be lowered to and held in.- different positions while the raising means is arranged so that 'i'tcan be rotated in one 'directioni independently of the roller,

means being provided for; automatically "returning said raising means and its cordto Fig; 3 1st sectional view on line III-III. in Fig. 2 looking in the direction oftheif Fig. 4-

a sectional View on line IVIV in Figs 2 ookingin'the directionbf the I Fig; 5 is a longitudinal sectional View of} one of the endfitti ngs removed and drawn to an enlarged scale. o

Fig. 6 is a section on line VIV-I in Fig. 5. In the practical embodiment'shown in'the drawings the roller '1 and blind 2 maybe of" any usual form; The end members'arescom structed as'separatefittings each oztwhich comprisesa circular flanged discfi engaging and fixed by screws 4 to theproximate end of the roller and an axially extending jour nal 3 which is for'med with a shoulder 6 bewasher 11 located between the shoulder 6 on the journaLat the" outer side of the ratchet provided with two oppositely extend'ing cylindrical flanges I6, 17 within which there is fitted disc rings 18, 19, the one- 19 at the outer end being" removable. Between the drum and the inner disc ring 18 there is mounted a number of, say three, pawls 20' rockable' on rivets 21. extending between the said drumtween it'send' and the disc and fiss'c'rewed'at its end-7. Onthisijournal thereis a loosely mounted' ratchet wheel 13 which is friction allyfclutched to the journal" by' a spring and a disc'w'asher 12in contact with the ratchet Wheel 13. A cord drum is located Wheel, in contactjwith-theside thereof, this drum being rotatably mounted on a sleeve" nu't l 5 screwed upon {the journal and being e winmm fJAMEsnADnEN', on GLASGOW, scornnnn, enssxonon; ro nonunso mad" flange and disc ri'ng',vand adapted toengage with theratchet' wheel} Within the outer Y flanged part 17' and rotatably mounted on thesleeve-nut 15 is a sleeve 22 between which spring 23 an'chored to t is two (parts; One end 24' of the springj23 is passe 25in theflangedf part 17 and the other end 26 is passed through a slot 27 in ,the sleeve 22. This 'en'd ifitting "'is. also enclosed in a two. part- cover 30, 31, one part having and 1 the said flanged, art is located a coil through slots projections 32 which engage in slots 38 in- (the sleeve and" having a' bearingspindle 34 cord. 35 which is adaptedto wind around-the part between the'drum' flanges, is secured at one'end bypassing it through a hole 37in onefiange andknotting this end of the cord. The other'endof the cordpasses through a hole-38 in the cover part 30 and is preferably which'projects within the sleeve nut 15. The

provided with a tassel 39 or other similar device.

The two part covers 30, 31 are made to fit detachably together so that the end fitting can be inspected and parts thereof adjusted, removed, changed and; replaced. These'r covers are provided withiapertured lugs 40 by which they can be fixed to the window frame 41.

The sleeve nut canbe moved by screwing it more or les's on to the journal and by" this means the tension of the spring washers can be adjusted. A, grub screw '47 is "pro vided in the sleevemut, which when screwed against the joi'irnal'ser'ves to loch the sleeve The two end members are of identical con- 4 struction exceptthat, the journal, sleeve nut and ,grub screw'at' the righthand end are} 80 provided with left hand threads and-the same "parts at the left hand end, are provided with right hand threads to prevent these parts i from unscrewing by the operation'jfofjther blind.

.85 Assuming the parts constituting the roller blind have been assembled and fixed in place 1 and assuming that the blind-is up'andthat eachucord has been wound around its drum;

so that only the tassel 39, extends beyond the 10 ,end casing, then inoperation, when the blind is pulled downthe roller is rotated, the ratchet f wheels being retained by their; pawls so: that theratchet wheels are, stationary, the roller rotatingagainst the friction set up by. the

'45 spring washers. The blind will stay in any h 'i'position to which it is moved. To raise the .7 tionary whereby the blind can be raised-by pulling the cord at either end of the roller,

blindeither of the tassel's' 39 is pulled causing the cord t-o rotate the drum and through a I, the pawls thereon rotating the ratchet wheel which, in turn, rotates the roller, thefriction the other end is being operated.

set up between the parts by the spring washer 11 preventing relative movement of the parts. In this rising movement the ratchet wheel of j blind is adapted to be wound, normally inac- Ltive actuating means at each end of the roller for rotating theroller in a direction. to wind the opposite end fittin to that-whose cord ,is operated runs free. oreover, in this ris- "ing movementthe coil spring 23 of the cord drum which is rotated will be tightened by the rotation of the drum relative to the sleeve; -When, therefore,the blind has been moved up "to the required position and the tasselreleased videdwith two-guideropes 50 adapted to The blind is providedfm'ith' a:

39-will cooperate with the cover part 30 nor mally to hold the cord drum stationary.

In this way the blind can be raised from either end, when and to the extent required and the cord will be rewound or retracted to itsjinitial position irrespective of the position It will be understood that it is not essential that the cord be, as assumed, entirely rewound or retracted, the importantpoint being that .lthe cord is rewound-hr retracted to its original positionso that a minimum and constant amount of cord is 'hanging irrespective of the position of the I'claim 1.- A {roller blind'having at each end-of said roller a fitting comprising, a journal l ndhaving a screwed end,v a ratchet wheel rotatably mounted on each journal, means for,

'frictionially holding said: ratchet wheel to the ournal to allow theblind to be, lowered and held indifferent positions while the ratchg et ,wheel is stationary, a sleeve nut screwing id j u n an e g i g e ra c t: wheeland serving t -varythe friction holding said ratchet wheelto the ournal, a screw for,

locking said sleeve nut initsadjusted position, 1' a cord drum rotatably mounted on said'sleeve;

nut, a cord on said drum adaptedtoj-rotate it wheel, adapted when the drum isrotated by, the cord to rotate the-roller but to allow; the drum to rotate in the opposite direction in-ff Y dependently o fsaid roller, supporting means"? pawls on said drum engagingsaid ratchet adaptedto be fixed to Window'frarne and engaging in the sleeve :nut,a;'c oil spring fixed 1 at one end to said cord drum and'adapted automatically to return thecord drum toits r initialposition aitertheblind has been'moved to a'required position bya pullon-said cord whereby the cord jis. :retra cted, anchoring means on saidsleeve nut foritheother end 5 of said coilspring, means-on said supporting r means toen'gage detachably with and 'holdfl' for normal'ly holding said cord drum sta- =said anchoring means-stationary and means;

checkedat one end while raisingme fns at 2. A roller blind operating mechanism embodying a roller upon and from whichthei:

the blind thereupon, said roller being 'rotatable independently of both of said actuatiing'means as theblind is unwound, means individual to the said actuating means 'for selecdownward movement when the other of the the drum will be rotated by the'coilspringciv y r ring h m active for operating,

so as to return the drum to itsfinitial position relative to the casing, automatically rewind-Q ing thecord onto the. drum and thereby re-:

65 tractingit to its original position. The tasself i the roller from either end to Wind the blind upon the roller, each of said blind raising 'means operating to maintainlthe blind-against dependent of said actuating means for maintaining the blind in any desired position. V 3. A roller blind'operating mechanism embodying a rollerv upon and from which the blind is adapted to be wound, normally inactive actuating means at each end of the roller for rotating the roller in adirection to wind the blind thereupon, said roller be-' ing rotatable independently ofboth of said actuating means as the blind is unwound, means individual to the said actuating means for selectively rendering them active for operating the roller from either end to wind the blind upon the roller, each of the last said means'embodying a drum, apull cord wound thereupon and adapted to be unwound therefromto rotate the drum, each of said blind raising means operating to maintain the blind against downward movement when the other of the blind raising means is actuated, and means individual to the drums and rendered active by the unwinding action of said pull cords, for rotating the respective drums in the opposite direction independent of said roller to rewind the respective pull cords upon the respective drums.

4. A roller blind having in combination, a

roller,'a blind thereon, two devices one at each end of the roller, each device comprising unidirectional clutching means, both clutching means being adapted to act on the roller in the same rotative sense, and means in connection with each said'device for raising the blind, both of the said devices cooperating with the roller to hold the blind in.

position when lowered but one of the de vices operating and the-other remaining 1nactive when the blind is raised by one of the blind raising means.

5. A roller blind hav ng in combmation, a roller, a bl nd thereon, two devices one at each end of the roller, each device comprising unition with each" said device for raising the blind, both of the said devices co-operating with the roller to hold the blind in position when lowered, and both devices operating to raise the blind when the blind is being raised by both blind raising means.

6. A roller blind having in combination, a roller, a blind thereon, two devices one at each end of the roller, each device comprising unidirectional clutching means, spring means and frictional contact means, both clutching means being adapted to act on the roller in the same rotative sense, and means in connect-ion with each said device for raising the blind, both of the said devices cooperating with the roller to hold the blind blind rai'sing fmeans, onefof the spring means acting to retract the: b'lindraising means. after the blindhas been raised {71A roller blindthaving in' combination, Fit-i roller, 'a blind thereon, two devices, conic gat' each end of the roller, each device-comprising unidirectional clutching means,1spring means and frictional Contact means, :both clutching" means being adapted to act on. the roller in the same rotative sense,and :means in connection with each saiddevicefor raising the blind, both'of the saiddevices co-operating. with the'roiler to hold the blind in position when lowered, andlboth devicescoperating to raise the blind when the blind is being raised by both blind raising means, both of the springmeans acting to retract the blind raising means after the blind has been raised.

7 8.v A roller blind having in combination, a roller, a blind thereon, two devices one at each end of the roller, each device comprising unidirectional clutching means, spring means and frictional contact means, both clutching means being adapted to act on the roller in operating and the other remaining inactive when the blind ,i-s raised by one of the cords.

9. For a roller blind, the combination of a roller, roller turning means at each end of said roller adapted to turn said roller in the blind raising sense, unidirectional clutching means between each, end of the roller and the corresponding roller turning means, friction clutching means between each" end of the roller and the corresponding unidirectional clutching means and resilient means at each end ofsaid roller and adapted to be stressed by blind'raising movement of the corresponding roller turning means, either of the're-' silient means acting to return the corresponding roller turning means to its normal position aftertheblind has been raised thereby and the unidirectional clutching means at the other end of the roller simultaneously coacting to prevent turning of the roller in the blind lowering sense. 7 w

10. A roller blind having in combination, a roller, a blind thereon, two devices one at each end of the roller, each device comprising unidirectional clutching means, both clutching meansbeing adapted to, act on the roller in the same rotative sense, and means in connection with each said device for raising the blind, the two said devices co-operating, one to retract the blind raising means after the blind has been raised and the other simultaneously to prevent such retraction causing movement of the roller in the blind lowering sense. y

11. A roller blind having in combination, a roller, a blind thereon, two devices one at each end of the roller, each device comprising unidirectional clutching means, spring means and frictional contact means, both clutching means being adapted to act on the rollerin 5 the same rotative sense, and means'in con-V nection with each saiddevice for raising the blind, the two 'said devicesco-operating, one to retract therblind raising means afterthe blind has'been raised and the other simultane- 10 ously to prevent such retraction causing movement of the r ller in the blind lowering sense e .5 i v j 1 In testimony whereof I afiix my signature.

' 'WILLIAM JAMES HADDEN.

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