CA1244752A - Track mechanism, for the orientation and displacement of the strips of a vertical strip blind - Google Patents
Track mechanism, for the orientation and displacement of the strips of a vertical strip blindInfo
- Publication number
- CA1244752A CA1244752A CA000451088A CA451088A CA1244752A CA 1244752 A CA1244752 A CA 1244752A CA 000451088 A CA000451088 A CA 000451088A CA 451088 A CA451088 A CA 451088A CA 1244752 A CA1244752 A CA 1244752A
- Authority
- CA
- Canada
- Prior art keywords
- spindle
- toothed
- box
- mechanism according
- blind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
- E06B9/362—Travellers; Lamellae suspension stems
- E06B9/364—Operating mechanisms therein
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The mechanism comprises a first spindle supported in a prismatic box-like body, having at one end thereof a toothed wheel. Fitted to the spindle with the interposition of resilient biasing means, is a hollow cylindrical element having a circum-ferential ring of projecting teeth. The toothed wheel of the spindle engages a cooperating toothed wheel carried at an end of a second spindle which also has a support hook for one of the strips of a vertical strip blind. The body is housed, with the spindle disposed on one side thereof, in a sliding track provided with opposite guides for the passage of a flexible control mem-ber, this latter being engagable with the toothed circumferential projection formed on the hollow cylindrical element which sur-rounds the first spindle.
The mechanism comprises a first spindle supported in a prismatic box-like body, having at one end thereof a toothed wheel. Fitted to the spindle with the interposition of resilient biasing means, is a hollow cylindrical element having a circum-ferential ring of projecting teeth. The toothed wheel of the spindle engages a cooperating toothed wheel carried at an end of a second spindle which also has a support hook for one of the strips of a vertical strip blind. The body is housed, with the spindle disposed on one side thereof, in a sliding track provided with opposite guides for the passage of a flexible control mem-ber, this latter being engagable with the toothed circumferential projection formed on the hollow cylindrical element which sur-rounds the first spindle.
Description
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The present Inventlon relates to a track mechanlsm, for the orientatlon and dlsplacement of the strlps of a vertlcal strlp blInd. As Is currently known, vertlcal strlp blInds are largely utlllzed for the coverlng and decoratlon of wlndows In general, such blInds belng constltuted by ad~acent strlps of sultably relnforced fabrlc. Such strlps are suspended from con-venlently formed members slldable along a hollow track support whlch members are capable of causlng orlentatlon of the strlps by maklng them turn through a glven angle about thelr parallel ver-tlcal axes.
It Is llkewlse known that the movement of such blIndscan be obtalned by means of a slngle control or a double control.
In the latter case a flrst cord effects the dlsplacement of the strlps (drawlng together or apart) and a second cord causes rota-tlon thereof. In the former case a slngle control cord Is used to perform the sald two operatlons In sequence.
However, assemblles whlch are commerclalIy avallable at present for obtalnlng, wlth a slngle control, the dlsplacement and orlentatlon of the strlps, have a slgnlflcant structural com-plexlty and are therefore rather expenslve. Thls structural com-plexlty, moreover, can detrImentally affect, at least In general, the correct operatlon of the product, or at least requlre fre-Z5 quent ad~ustments and/or replacement of parts.
Llkewlse, the conventlonal type of dlsplacement andorlentatlon members for the strlps usually have a not Inslgnlfl-cant llnear bulk, whlch only allows them to be used on rectllln-ear sectlons.
Moreover, wlth the currently avallable dlsplacementmembers, whenever It Is deslred to provlde a blInd wlth a central aperture, It Is necessary to use a double track for the slldlng ~5 of the sllde guldes or dlsplacement members.
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The present Inventlon ellmlnates the prevlously descrlbed dlsadvantages by provl~lng a mechanlcal devlce for the manlpulatlon of vertlcal strlp bllnds whlch are structurally slmple and therefore of low cost.
In partlcular the present Inventlon provldes a mechanl-cal devlce for operatlng vert~cal strlp blInds; whlch has a sub-stantlally llmlted bulk so as to be used even on curved proflles.
The present Inventlon agaln provldes a mechanlcal devlce for operatlng vertlcal strlp bllnds whlch wlll allow bllnds havlng a central openlng to be formed uslng only a slngle slldlng track of sultable shape.
The present Inventlon stlll further provldes a mechanl-cal devlce for operatlng vertlcal strlp bllnds whlch Is made from a llmlted number o~ component parts cooperatlng together In such a way as to provlde an extremely secure and rellable product for the user.
Accordlng to the present inventlon there Is provlded a mechanlsm for the operatlon of a vertlcal strlp blInd whlch com-prIses a flrst splndle supported by a prlsmatlc box-lIke body at one end of whlch splndle Is a toothed wheel and on whlch Is fIt-ted, wlth the Interposltlon of reslllent blaslng means, a hollow - cyllndrlcal element provlded wlth a clrcumferentlal proJectlon havlng teeth. The toothed wheel of the sald flrst splndle engages a shaped end of a second splndle havlng a vertlcal axls, whlch shaped end has teeth over a part of Its perlphery. The second splndle carrles a sultably shaped hook for supportlng one of the strlps of the vertIcal strlp b!Ind. The sald prIsmatlc box-shape body Is housed wlth the fIrst splndle dlsposed on one slde In a slldlng trac~ havlng mlrror Image symmetry across the vertlcal plane passlng through Its longltudlnal axls and Is pro-3~ vlded wlth opposed guldes for the passage of a flexIble controlmember whlch Is adapted to engage the clrcumferentlal toothed ~2~7SZ
pro~ectlon formed on ~he hollow cyllndrlcal element whlch sur rounds the flrst splndle.
Preferably the sald fIrst splndle Is dlsposed oblIquely
The present Inventlon relates to a track mechanlsm, for the orientatlon and dlsplacement of the strlps of a vertlcal strlp blInd. As Is currently known, vertlcal strlp blInds are largely utlllzed for the coverlng and decoratlon of wlndows In general, such blInds belng constltuted by ad~acent strlps of sultably relnforced fabrlc. Such strlps are suspended from con-venlently formed members slldable along a hollow track support whlch members are capable of causlng orlentatlon of the strlps by maklng them turn through a glven angle about thelr parallel ver-tlcal axes.
It Is llkewlse known that the movement of such blIndscan be obtalned by means of a slngle control or a double control.
In the latter case a flrst cord effects the dlsplacement of the strlps (drawlng together or apart) and a second cord causes rota-tlon thereof. In the former case a slngle control cord Is used to perform the sald two operatlons In sequence.
However, assemblles whlch are commerclalIy avallable at present for obtalnlng, wlth a slngle control, the dlsplacement and orlentatlon of the strlps, have a slgnlflcant structural com-plexlty and are therefore rather expenslve. Thls structural com-plexlty, moreover, can detrImentally affect, at least In general, the correct operatlon of the product, or at least requlre fre-Z5 quent ad~ustments and/or replacement of parts.
Llkewlse, the conventlonal type of dlsplacement andorlentatlon members for the strlps usually have a not Inslgnlfl-cant llnear bulk, whlch only allows them to be used on rectllln-ear sectlons.
Moreover, wlth the currently avallable dlsplacementmembers, whenever It Is deslred to provlde a blInd wlth a central aperture, It Is necessary to use a double track for the slldlng ~5 of the sllde guldes or dlsplacement members.
~ 2~75~
The present Inventlon ellmlnates the prevlously descrlbed dlsadvantages by provl~lng a mechanlcal devlce for the manlpulatlon of vertlcal strlp bllnds whlch are structurally slmple and therefore of low cost.
In partlcular the present Inventlon provldes a mechanl-cal devlce for operatlng vert~cal strlp blInds; whlch has a sub-stantlally llmlted bulk so as to be used even on curved proflles.
The present Inventlon agaln provldes a mechanlcal devlce for operatlng vertlcal strlp bllnds whlch wlll allow bllnds havlng a central openlng to be formed uslng only a slngle slldlng track of sultable shape.
The present Inventlon stlll further provldes a mechanl-cal devlce for operatlng vertlcal strlp bllnds whlch Is made from a llmlted number o~ component parts cooperatlng together In such a way as to provlde an extremely secure and rellable product for the user.
Accordlng to the present inventlon there Is provlded a mechanlsm for the operatlon of a vertlcal strlp blInd whlch com-prIses a flrst splndle supported by a prlsmatlc box-lIke body at one end of whlch splndle Is a toothed wheel and on whlch Is fIt-ted, wlth the Interposltlon of reslllent blaslng means, a hollow - cyllndrlcal element provlded wlth a clrcumferentlal proJectlon havlng teeth. The toothed wheel of the sald flrst splndle engages a shaped end of a second splndle havlng a vertlcal axls, whlch shaped end has teeth over a part of Its perlphery. The second splndle carrles a sultably shaped hook for supportlng one of the strlps of the vertIcal strlp b!Ind. The sald prIsmatlc box-shape body Is housed wlth the fIrst splndle dlsposed on one slde In a slldlng trac~ havlng mlrror Image symmetry across the vertlcal plane passlng through Its longltudlnal axls and Is pro-3~ vlded wlth opposed guldes for the passage of a flexIble controlmember whlch Is adapted to engage the clrcumferentlal toothed ~2~7SZ
pro~ectlon formed on ~he hollow cyllndrlcal element whlch sur rounds the flrst splndle.
Preferably the sald fIrst splndle Is dlsposed oblIquely
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with respect to the second spindle; in -this case, obviously, the corresponding toothed and partially toothed wheels formed at tneir facing ends and n~utually engaging one another are of conical type, namely bevel wheels.
Preferred embodiments of a mechanism for operating vertical strip blinds, of the present invention, will be further illustrated by way of the accompanying drawinss, in which:
Figure 1 is a vertical section illustrating the device according to one embodiment of the present invention in an 10 associa-ted sliding track;
Figure 2 is a schematic perspec-tive of a vertical strip blind the support and sliding track of which is equipped with a plurality of -the devices of Figure 1;
Figure 3 is a cross-section similar to Figure 1 illustrating a device according to a second embodiment oF the present invention in which a first and second spindle are parallel to one another; and Figure 4 is a view from above of the second spindle.
With particular reference to the accompanying 20 drawings, the operating mechanism for a vertical strip blind comprises a suitably shaped prismatic box-like body 1 having a substantially trapezoidal shape, with a projecting portion 1' in which are mountings for housing and supporting a spindle 2 disposed wlth Its axls preferably Incllned or else vertlcal.
At Its base portlon the splndle has a perlmetral toothed wheel 3 slmllar to a toothed rlng, above whlch Is located a fIxed collar 4. Upwardly from the toothed wheel 3 the splndle has a fIrst cyllndrlcal portlon 2' and above thls a second cylln-drlcal portlon 2" of smaller dlameter.
On the flrst cyllndrlcal portlon there Is fltted, wlth the Interposltlon of reslllent blaslng means ~, a hollow cylln-drlcal element 6 carrylng a coaxlal rlng 7, the perlmeter of whlch has a set of teeth In the form of a rlng ge~r.
The sald reslllent blaslng means ~ may be a coll sprIng or a length of rubber tube, or be other functlonally equlvalent members sultably dlmensloned and placed In compresslon by the presslng actlon of a reslllent washer 19 to act as a frlctlon clutch between the hollow cyllndrlcal element 6 and the collar 4.
The lower toothed wheel 3 of the splndle 2 Is engaged by the UPper end 20 of a second splndle 8 whlch has a conlcal head and teeth around part oF Its perlphery. Thls latter Is housed such that It can turn In a sultable seat 9 In the base of the box-lIke body 1 adJacent Its pro~ectlng portlon 1'.
The portlon of the box-lIke body 1 constltutlng the sal&i seat 9 further defInes outer guldes 10 for retalnlng and slldlng along the flanges 11 of a C-shape sectlon 12.
Thls section, havlng a vertlcal plane of symmetry, has, In partlcular, on the Inner faces of the two lateral walls respectlv~ open channels 13 of sultable sectlon whlch can house a slldable member 14 whlch causes rotatlon of or drawlng along (In one of two dlrectlons) of the toothed rlng 7.
The slldable member 14 may, as requlred or preferred, ~Z'~9~7S2 be a cord or a chaln carrylng balls or other sultable proJectlng elements, or be a perforated band or the llke adapted to engage the teeth of the toothed rlng. In partlcular, the proJectlng members of the said slldable operatlng member should extend from the channels 13.
The toothed rlng 7, the rotatlon of whlch Is essen-tlally reslsted by the actlon of the reslllent means 5, starts, at flrst, to turn puttlng the partlally toothed upper end 20 of the splndle 8 Into rotatlon through the toothed rlng 3. The lower end of the splndle 8 carrles a sultably shaped support hook 15 for one of the strlps 16 of the blInd.
The rotatlon of thls splndle Is obvlously llmlted In amplItude by the clrcumferentlal extent o~ the teeth on Its upper end 20. I n fact, when the toothed rlng 3 engages the contlnuous portlon of the sald upper end of the splndle 8 the rotatlon of the splndle and the correspondlng toothed rlng ceases slnce any posslble further tractlon exerted on the teeth of the rlng 7 20 cause solely a rotatlon of thls latter agalnst the reslstance of the reslllent frlctlon means ~.
In practlce, after thls rotatlonal movement, further tractlon on the sald toothed rlng 7 causes translatlon of the 25 box-lIke body 1 in one dlrectlonal sense or the other causlng the - varlous strlps of the blInd to approach or become spaced from one another. The normal posltlon of these strlps Is determlned, obvlously, by the length of the cable or chaln whlch Jolns the box-llke bodles together, whlch can vary wlth the speclflc requlrements of use for the user. Moreover, the sald frlctlon clUtch can be fltted, Instead of on the flrst splndle 2, to the second splndle 8 wlth the necessary varlatlon of provldlng the head of thls latter also wlth a complete toothed wheel and by arranglng a tooth for the necessary arrest of rotatlon thereof.
Moreover, In the case of an Incllned splndle ~FIgure 1) 12~4'7S2 there Is provided, at the top of the prlsmatlc body 1, a reslllent tongue 17 whlch, by abuttlng agalnst a proJectlon 18 formed In the middle of the proflle 12, Improves the retentlon of the box~ e body Itself wlthln thls latter. In partlcular, thls tongue Is able to guarantee perfect stablllty of the box-lIke body agalnst the Inevltable stresses transmltted by the movement of the dlsplacement member.
The per~ect mlrror Image symmetry of the sectlon con-stltutlng the slldlng track allows the box-llke bodles to be Introduced wlth the proJectlng portlon 1' faclng elther the rlght (wl~h reference to Flgures 1 and 3) or towards the left that Is to say wlth the box-lIke 1;Z:4~5;~
body itself rotated through 180 with respect to its vertical axis. In this way box-like bodies with the toothed ring c~rranged ~or right hand movement of the slidable operating bodies 14 can be fitted on the right hand section of a track whilst bodies arranged with the teeth on the le~t can be fitted to the left hand section of the same track for sliding movement in the opposite sense from that of the right hand section.
Consequently, by arranging the said box-like bodies within the section constituting the track with some of them facing the right and some ~acing the le~t it is possible easily to provide a blind having c~ central opening. The presence of the said friction clutch likewise prevents`breakage or wear phenomena on the slidable operating member 14 or the toothed ring 7 or sliding of the blind even in the case of prolonged and repeated adjustment.
From what has been explained above and from observation of the various Figures of the drawings attached the great functionality and practicality in use which characterise the operating mechanism for vertical strip blinds and constituting the subject of the present invention will be apparent.
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with respect to the second spindle; in -this case, obviously, the corresponding toothed and partially toothed wheels formed at tneir facing ends and n~utually engaging one another are of conical type, namely bevel wheels.
Preferred embodiments of a mechanism for operating vertical strip blinds, of the present invention, will be further illustrated by way of the accompanying drawinss, in which:
Figure 1 is a vertical section illustrating the device according to one embodiment of the present invention in an 10 associa-ted sliding track;
Figure 2 is a schematic perspec-tive of a vertical strip blind the support and sliding track of which is equipped with a plurality of -the devices of Figure 1;
Figure 3 is a cross-section similar to Figure 1 illustrating a device according to a second embodiment oF the present invention in which a first and second spindle are parallel to one another; and Figure 4 is a view from above of the second spindle.
With particular reference to the accompanying 20 drawings, the operating mechanism for a vertical strip blind comprises a suitably shaped prismatic box-like body 1 having a substantially trapezoidal shape, with a projecting portion 1' in which are mountings for housing and supporting a spindle 2 disposed wlth Its axls preferably Incllned or else vertlcal.
At Its base portlon the splndle has a perlmetral toothed wheel 3 slmllar to a toothed rlng, above whlch Is located a fIxed collar 4. Upwardly from the toothed wheel 3 the splndle has a fIrst cyllndrlcal portlon 2' and above thls a second cylln-drlcal portlon 2" of smaller dlameter.
On the flrst cyllndrlcal portlon there Is fltted, wlth the Interposltlon of reslllent blaslng means ~, a hollow cylln-drlcal element 6 carrylng a coaxlal rlng 7, the perlmeter of whlch has a set of teeth In the form of a rlng ge~r.
The sald reslllent blaslng means ~ may be a coll sprIng or a length of rubber tube, or be other functlonally equlvalent members sultably dlmensloned and placed In compresslon by the presslng actlon of a reslllent washer 19 to act as a frlctlon clutch between the hollow cyllndrlcal element 6 and the collar 4.
The lower toothed wheel 3 of the splndle 2 Is engaged by the UPper end 20 of a second splndle 8 whlch has a conlcal head and teeth around part oF Its perlphery. Thls latter Is housed such that It can turn In a sultable seat 9 In the base of the box-lIke body 1 adJacent Its pro~ectlng portlon 1'.
The portlon of the box-lIke body 1 constltutlng the sal&i seat 9 further defInes outer guldes 10 for retalnlng and slldlng along the flanges 11 of a C-shape sectlon 12.
Thls section, havlng a vertlcal plane of symmetry, has, In partlcular, on the Inner faces of the two lateral walls respectlv~ open channels 13 of sultable sectlon whlch can house a slldable member 14 whlch causes rotatlon of or drawlng along (In one of two dlrectlons) of the toothed rlng 7.
The slldable member 14 may, as requlred or preferred, ~Z'~9~7S2 be a cord or a chaln carrylng balls or other sultable proJectlng elements, or be a perforated band or the llke adapted to engage the teeth of the toothed rlng. In partlcular, the proJectlng members of the said slldable operatlng member should extend from the channels 13.
The toothed rlng 7, the rotatlon of whlch Is essen-tlally reslsted by the actlon of the reslllent means 5, starts, at flrst, to turn puttlng the partlally toothed upper end 20 of the splndle 8 Into rotatlon through the toothed rlng 3. The lower end of the splndle 8 carrles a sultably shaped support hook 15 for one of the strlps 16 of the blInd.
The rotatlon of thls splndle Is obvlously llmlted In amplItude by the clrcumferentlal extent o~ the teeth on Its upper end 20. I n fact, when the toothed rlng 3 engages the contlnuous portlon of the sald upper end of the splndle 8 the rotatlon of the splndle and the correspondlng toothed rlng ceases slnce any posslble further tractlon exerted on the teeth of the rlng 7 20 cause solely a rotatlon of thls latter agalnst the reslstance of the reslllent frlctlon means ~.
In practlce, after thls rotatlonal movement, further tractlon on the sald toothed rlng 7 causes translatlon of the 25 box-lIke body 1 in one dlrectlonal sense or the other causlng the - varlous strlps of the blInd to approach or become spaced from one another. The normal posltlon of these strlps Is determlned, obvlously, by the length of the cable or chaln whlch Jolns the box-llke bodles together, whlch can vary wlth the speclflc requlrements of use for the user. Moreover, the sald frlctlon clUtch can be fltted, Instead of on the flrst splndle 2, to the second splndle 8 wlth the necessary varlatlon of provldlng the head of thls latter also wlth a complete toothed wheel and by arranglng a tooth for the necessary arrest of rotatlon thereof.
Moreover, In the case of an Incllned splndle ~FIgure 1) 12~4'7S2 there Is provided, at the top of the prlsmatlc body 1, a reslllent tongue 17 whlch, by abuttlng agalnst a proJectlon 18 formed In the middle of the proflle 12, Improves the retentlon of the box~ e body Itself wlthln thls latter. In partlcular, thls tongue Is able to guarantee perfect stablllty of the box-lIke body agalnst the Inevltable stresses transmltted by the movement of the dlsplacement member.
The per~ect mlrror Image symmetry of the sectlon con-stltutlng the slldlng track allows the box-llke bodles to be Introduced wlth the proJectlng portlon 1' faclng elther the rlght (wl~h reference to Flgures 1 and 3) or towards the left that Is to say wlth the box-lIke 1;Z:4~5;~
body itself rotated through 180 with respect to its vertical axis. In this way box-like bodies with the toothed ring c~rranged ~or right hand movement of the slidable operating bodies 14 can be fitted on the right hand section of a track whilst bodies arranged with the teeth on the le~t can be fitted to the left hand section of the same track for sliding movement in the opposite sense from that of the right hand section.
Consequently, by arranging the said box-like bodies within the section constituting the track with some of them facing the right and some ~acing the le~t it is possible easily to provide a blind having c~ central opening. The presence of the said friction clutch likewise prevents`breakage or wear phenomena on the slidable operating member 14 or the toothed ring 7 or sliding of the blind even in the case of prolonged and repeated adjustment.
From what has been explained above and from observation of the various Figures of the drawings attached the great functionality and practicality in use which characterise the operating mechanism for vertical strip blinds and constituting the subject of the present invention will be apparent.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A mechanism for operating a vertical strip blind which includes a first spindle supported in a prismatic box-like body at one end of which spindle there is a toothed wheel and on which is fitted with the interposition of resilient biasing means, a hollow cylindrical element provided with a circumferential projection having external teeth; the toothed wheel of the said first spindle engaging a partially toothed shaped upper end of a vertical second spindle carrying a shaped hook for support of a strip of the blind; said prismatic box-like body being housed, with the first spindle disposed on one side thereof in a sliding track having mirror image symmetry with respect to a vertical plane passing through its longitudinal axis, and provided with opposed guides for the passage of a flexible control member which is engageable with the toothed circumferential projection on said hollow cylindrical element.
2. A mechanism according to claim 1, in which said first spindle is disposed obliquely with respect to the second spindle, the meshing toothed and partially toothed wheels being conical or bevel wheel type.
3. A mechanism according to claim 1, in which the prismatic box-like body has a substantially trapezoidal shape with a projecting portion having seats for housing and supporting said first spindle with its axis inclined with respect to the vertical perimetral teeth being provided on a lower portion of said spindle in the form of a conical toothed ring above which presses a fixed collar; said first spindle extending upwardly in a first cylindrical portion followed by a second cylindrical portion of smaller diameter.
4. A mechanism according to claim 3, in which said . . .
resilient biasing means is a coil spring, or a length of rubber tube, under compression to serve as a friction clutch between the hollow cylindrical element and the said collar.
resilient biasing means is a coil spring, or a length of rubber tube, under compression to serve as a friction clutch between the hollow cylindrical element and the said collar.
5. A mechanism according to claim 3 or 4, in which said second spindle is rotatably housed in a seat at the base of the said box-like body adjacent its projecting portion; the portion of the box-like body forming this seat further defining external guides for retaining the body for sliding movement along the flanges of a C-chaped profile of the track of the blind.
6. A mechanism as claimed in claim 1, in which said sliding track is a section having a vertical plane of symmetry which has, on the inner faces of the two side walls two open channels of section suitable for housing a slidable member operable to cause rotation or drawing in either direction of the said toothed ring.
7. A mechanism according to claim 6, in which said slidable member is a cord or a chain carrying projecting elements, or a perforated band adapted to engage in traction with the toothed ring and so shaped that the projecting elements extend from the said channels formed on the two sides of the section.
8. A mechanism according to claim 1, in which a friction clutch is fitted to the second spindle instead of to said first spindle, the head of said second spindle being provided with a completely surrounding toothed wheel and having a tooth constituting an abutment stop for limiting the rotation thereof.
9. A mechanism according to claim 1, 2 or 3, in which in an upper part of the said prismatic box-like body there is a resilient tongue which, by contacting a projection formed in the middle of the section constituting the sliding track, improves the retention of the box-like body therewithin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT21445B/83 | 1983-04-06 | ||
| IT8321445U IT8321445V0 (en) | 1983-04-06 | 1983-04-06 | GEAR DEVICE, FOR THE ORIENTATION AND DRAGING OF THE STRIPS, IN THE VERTICAL BLADE CURTAINS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1244752A true CA1244752A (en) | 1988-11-15 |
Family
ID=11181884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000451088A Expired CA1244752A (en) | 1983-04-06 | 1984-04-02 | Track mechanism, for the orientation and displacement of the strips of a vertical strip blind |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0122235B1 (en) |
| JP (1) | JPS59206586A (en) |
| AT (1) | ATE35842T1 (en) |
| CA (1) | CA1244752A (en) |
| DE (1) | DE3472816D1 (en) |
| IT (1) | IT8321445V0 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845695A (en) * | 1997-05-05 | 1998-12-08 | All-Teck Blinds, P.T.B. Inc. | Traversing and rotating wand for vertical blinds |
| US5992495A (en) * | 1997-12-09 | 1999-11-30 | All-Teck Blinds, P.T.B. Inc. | Concealed-wand control for a vertical blind |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8800049A (en) * | 1988-01-08 | 1989-08-01 | Allpac Holding B V Handelend O | SUSPENSION SYSTEM FOR VERTICAL BLINDS. |
| NL8903061A (en) * | 1989-12-13 | 1991-07-01 | Schoen Siegfried Joachim | DEVICE FOR SUSPENDING SLAT-SHADE BLINDS OR THE LIKE. |
| EP1342880A1 (en) * | 2002-03-08 | 2003-09-10 | Silent Gliss International Ag | Slat blind |
| FI120174B (en) * | 2004-03-19 | 2009-07-15 | Nokia Corp | Saving data with the device |
| CN201437686U (en) * | 2009-05-25 | 2010-04-14 | 广州嘉伦装饰建材有限公司 | Double-tracks louver curtain |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE666602A (en) * | 1964-07-23 | |||
| GB2031493B (en) * | 1978-09-09 | 1982-12-08 | Louver Lite Ltd | Slat blind |
-
1983
- 1983-04-06 IT IT8321445U patent/IT8321445V0/en unknown
-
1984
- 1984-03-30 EP EP84830099A patent/EP0122235B1/en not_active Expired
- 1984-03-30 AT AT84830099T patent/ATE35842T1/en not_active IP Right Cessation
- 1984-03-30 DE DE8484830099T patent/DE3472816D1/en not_active Expired
- 1984-04-02 CA CA000451088A patent/CA1244752A/en not_active Expired
- 1984-04-06 JP JP59067789A patent/JPS59206586A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845695A (en) * | 1997-05-05 | 1998-12-08 | All-Teck Blinds, P.T.B. Inc. | Traversing and rotating wand for vertical blinds |
| US5992495A (en) * | 1997-12-09 | 1999-11-30 | All-Teck Blinds, P.T.B. Inc. | Concealed-wand control for a vertical blind |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8321445V0 (en) | 1983-04-06 |
| JPS59206586A (en) | 1984-11-22 |
| EP0122235A2 (en) | 1984-10-17 |
| ATE35842T1 (en) | 1988-08-15 |
| EP0122235A3 (en) | 1986-03-19 |
| EP0122235B1 (en) | 1988-07-20 |
| DE3472816D1 (en) | 1988-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |