JPH05507978A - venetian blinds - Google Patents

Abstract

Headrail hardware to lift and tilt a Venetian blind is provided. A single control (5) operates both the lift and the tilt function. A multiturn band brake tilter (19) is used with each ladder cord (15) in a way that reduces the frictional forces encountered in lifting or lowering the blind. One end of each of the ladder cords is attached to an arm (21) of its tilter. The tilters are disposed directly about the rotating drive rod (11) with no intermediate parts, and are supported by cradles (17) that mount in the headrail rather than by the drive rod (11) as in prior art blinds. The drive rod (11) rotates the tilters (19) and the lifting mechanism until the tilters (19) contact stops built into each of the cradles (17). Further rotation keeps the blind fully tilted while lifting or lowering of the blind continues. In the preferred embodiment, the lift cords (13) are attached to the drive rod (11), which traverses to accumulate the cords (13) in a single layer as the rod (11) is rotated to lift the blind. The rotation of the rod (11) within the tilters (19) greatly reduces the lateral force needed to traverse the rod (11). An innovative bearing support (41) is provided so that the weight of the blind is transferred from the tilter (19) directly to the cradle (17), further reducing the frictional drag on the traversing rod (11).

Description

[Detailed description of the invention] The present invention relates to Venetian blinds, and in particular to slats or blinds. The same operating control was used both for controlling the slope of the platelet as well as for raising and lowering the blind. It concerns single-control Venetian blinds.

The Heradrail of Venetian blinds is used primarily to raise and lower the blind. The second is the operation of raising and lowering the blinds, and the second is the operation of opening and closing the blinds. Controllably tilting the slats to set them at the desired angle Two operations must be provided for the operation. Ideal single-control Heradrail The mechanism requires low operating effort even when raising heavy (and long) blinds. It would be something like that. It has a lift cord or cable inside the relatively small headrail. will provide for accumulating a group. It can provide good closure It will have a tilting mechanism that allows it to move. And finally, the smallest parts are stored and assembly is completed. It is easy and will require minimal adjustments.

The prior art includes several designs for single-control Venetian blinds. There is. Some of them are not sloped enough to provide good closure. those The multi-piece uses a large number of complex parts and is difficult to adjust.

The conventional technology is to install a lift cord or cable inside the helad rail of Venetian blinds. Two general methods are disclosed for accumulating loops. One method is to riff winding cord or tape onto a spool. This method has two disadvantages I'm worried about this. One disadvantage is that the cord or tape is on their respective spools. Not rolled evenly and very slight differences in diameter may occur when raising the blinds. This creates readily noticeable non-uniformity in the blind. Other disadvantages As the accumulated cord or tape diameter increases on the spool, This means that the mechanical advantages of the lift or lift mechanism are reduced. mechanical This progressive reduction in weight is due to the fact that the lift cord can carry more than the weight of the blind. This occurs because the blinds are supported, and it is necessary to further raise the blinds. Thicken (increase) the effort required.The mechanical advantage is that it just increases Decrease when it should.

The other, preferred method is to run the cord on a laterally moving or traversing shaft. , so that the lift cord wraps in a single layer over the shaft. It is to be. This method ensures uniform winding of each lift cord and Efforts to maintain a constant mechanical strength and thus raise the lift cord It only increases in proportion to the weight supported. Generates a traversal of rods or sticks Several methods have been used to do so. A rack and gear arrangement has been used Ta. U.S. Pat. No. 1.343.527 discloses a lead screw and a ・Soto is disclosed. Another method is without a gear or lead screw. is disclosed in U.S. Pat. No. 4.62'5.012, in which , the lift cords act on the cam shape of the cradles that support them and lateralize the rondos. Generates lateral force to move the vehicle. This method is currently used for lifting from below. This method is used for various types of blinds, but this method is used for Venetian blinds. It is not believed to work, and the reason is that blinds hanging from the tilter The weight of will add a lot of frictional resistance and therefore the rondo will not be legitimately rampant. This is because it is expected that

The headrail mechanism also tilts the slats or platelets of the Venetian blind. You have to tilt it. Traverse lock for accumulating lift cords In single-control blinds using must rotate in either direction with the transverse rondo until it reaches . So Accordingly, the tilting mechanism prevents the slit from sliding while the blind is being raised or lowered. and maintain that position. Single control venetian chamber of the transverse rod In Rhind, the drive shaft for the tilting mechanism is a transverse rod. ladder A cord is attached to the tilting mechanism. Generally, in single-control blinds, There is one tilting mechanism for each ladder cord in the blind. ladder cord are mounted on the tilter at a distance equal to the width of the slats. A good slope occurs. In addition, these attachments are such that the line between the points is aligned with the centerline of the transverse rod. It is a must pass. This will keep the tilter at the same angle as the slats or platelets. One.

If this geometric relationship does not hold, then complete closure is achieved. It may be necessary for the tilting mechanism to be able to lift the blind when necessary. cormorant.

In Venetian blinds with separate lift and tilt mechanisms, the entire blind There is no difficulty in providing a tilting mechanism that can lift the weight of the tip.

However, in a traversing rod single-control blind, the traversing rod is tilted. Both the tilt and lift mechanisms must be driven. Reach fully tilted position When the tilting mechanism partially disengages and slips, the rod then slides out of the blind. Maintains perfect tilt while continuing to rotate to raise or lower Sufficient torque must be provided for this purpose. required to maintain perfect slope. Any force required will be added to the effort required to raise the blind. Ru. This force is: (a) if the tilter arrangement is as described above, and (b) The tilter mechanism provides only that amount of torque needed to maintain perfect tilt If its grip on the transverse rod can be adjusted to Dew. Furthermore, if the separation between the rudder cords on the two sides is small at a complete incline, Small culm, good closure. This last requirement requires that the tilter be placed directly on the traversing rod. If fitted, you will be best satisfied. Something between tilter & rod The intermediate piece will increase the separation of the ladder cords at full tilt. rice National Patent No. 4.697.630 discloses that when a complete tilt is achieved, A slope with good gripping torque between the extremes of the slope while partially releasing the bite. The device mechanism is disclosed. This tilter has multiple windings that grab the traversing rod during tilting. Made in the form of a helical band clutch. When the position for full tilt is reached, The front end of the tilter contacts a stop that prevents further movement of the tilter, and the rod Partially releases the grip of the upper inclinator, which reduces the frictional resistance of the inclinator on the rod. Add resistance to the bow needed to maintain a fully sloped condition of the blind. Limit the amount of torque. The rod can continue to rotate, and the rod rotates the lift cord to raise or lower the blind according to the direction in which it is Wind up or unwind.

U.S. Patent Nos. 2.737.235, 2.758.644 and 3.352. No. 349 discloses a prior art single control system using various transverse rod lift mechanisms. Our Venetian blinds are listed. Each of these traditional blinds Due to the weight of the blind acting on the traversing rod to achieve traversing at It is necessary to overcome all of the frictional forces involved. One of the tilting mechanisms on the transverse rod The bite must be sufficient to ensure complete closure. And of course , both the tilting force on the rod and the frictional resistance force the rod to traverse. , must be overcome. These frictional forces are and large enough to make it very difficult. Therefore, a veneture using this type of mechanism It is surprising that blinds were never popular. isn't it.

Summary of the invention Desirable features of the helical band tilter of U.S. Pat. No. 4,696,630 is combined with a transverse rod system according to U.S. Pat. No. 4.623.012M. combined with a single control operation to accumulate lift cord within the headrail. Creates Venetian blinds. This combination has been tried and is unsatisfactory It turned out to be. This is because the tilter exerts a large frictional resistance on the transverse rod. This is because the traversing rod does not reliably traverse. The present invention addresses this frictional resistance. It is an object of the present invention to provide a novel bearing arrangement which eliminates a large amount of drag. In some cases, the tilter is supported directly by the cradle rather than by the traversing rod. The band clutch of U.S. Pat. No. 4,697,630 was modified as follows. Ru. This greatly reduces the frictional force on the traversing rod and improves operational reliability. do. The blind has good closing properties and is easy to raise and lower. The braai The unit has a small number of parts and is easy to assemble and adjust. Combination of the present invention The mating features a lock that counters the high frictional forces found in prior art blinds. It has the advantages of both a tilt mechanism and a lift mechanism without the problem of sliding the board.

The use of spiral wound band clutch ramps is critical. That is, the unitary system Among the various known methods for driving tilters in control blinds, it is Injury reduces the frictional force between the tilter and the traversing rod as necessary to maintain sufficient tilt. Provides high friction when needed during incline while controlling the minimum amount of friction This is because it is possible. Others with a defined friction connection between the rod and the tilter Due to the variability of frictional forces, the method extra frictional force must be provided for this purpose. This extra force operates the blinds U.S. Pat. No. 3,352,349 A single control veneture using a transverse rod and a tilter that frictionally grips the transverse rod. blinds are disclosed. The lift cord carrier 15 is mounted on the operating shaft 2 with a However, experience shows that brine During tilting, the tilter should hold firmly against the operating shaft to provide good closure of the It has been shown that it is necessary to bite, and this firm grip The friction from It is necessary to do something.

In a fully extended Venetian blind, the ladder cord supports the entire weight. hold As the blind is raised, weight is transferred to the lift cord. bra When the India is fully raised, the slat bundle or blind platelet bundle and the bottom Substantially the entire weight of the section rail is supported by the lift cord. The ladder code is Anything that is attached to the tilter and therefore supports the tilter is a bra The weight of the extended portion of India must also be supported. Inclinators and their inclines The normal force between the vessel and its support, as well as the resulting friction, When the tilter approaches full extension (which can make traversing difficult), the tilter supports most of the The required lift cord tension is at its minimum value.

Even in the case of large friction that prevents traversing, there is no burden on the traversing mechanism. It is surprising that it is possible to generate sufficient tilt drive. that is Possible reasons can be understood as follows. phase between two frictionally connected objects The force required to produce opposing motion is the same as when only that force is active. than when the other force is also causing the motion, even if the motion is Even if it's in a different direction, it's still big. For example, referring to Figure 1, the horizontal The force F1 required to slide an object of weight W across a surface is equal to uW where U is the coefficient of friction between the object and the surface. However, if there are two objects If it is moving under the action of perpendicular forces F1 and F2, as shown in Fig. 2, What is equal to uW is the vector sum of Fl and F2, and in FIG. 2 and the actual direction of motion. In this situation, Fl and F2 Both are less than uW, and if angle A is small, Fl is much more than uW Crab small.

In the case of the present invention, F2 corresponds to the force that rotates the rod or keyaki. , the force forces the rod to slip in the tilter, and Fl traverses the rod. corresponds to the force required to do so. In an exemplary embodiment of the invention is a 0.9525 cm (0.375') diameter rod and approximately 0.1016 A lift cord with a diameter of cm (0,040') was used. The rod is the thickness of the cord in the direction of rotation, since it rotates one complete revolution while traversing a distance equal to The surface motion is about 30 times the motion in the transverse direction, which means that angle A is It should be very small, somewhat smaller than 2 degrees. In this case, the force F2 causing rotational movement does most of the work on friction, and Fl produces the transverse motion in the absence of F2. This is only about 3% of the value that should be maintained. Intermediate piece between tilter and drum (pieces) between the tilter and the drum, and between the door. A sufficient amount of work must be done at both the intermediate planes between the ram and the rod. No. Since the entire amount of work must be provided by the operator of the blinds , this considerably increases the effort required to operate the blinds. .

Very long blinds with tilters of U.S. Pat. No. 4,697,630 In order to ensure that the traversing rod fully returns to its starting position, , I found it necessary to add weight to the bottom rail. Advantages of the present invention In a preferred embodiment, the tilter is not provided by a traversing rod (rather than by a cradle). Modifying the tilter and cradle so that it is supported directly by the upper bearing surface Great improvements have been achieved. Improved performance between rod and tilter comes from a decrease in the formal power of This is required to traverse the rod greatly reduces the power of In early systems, it was necessary to the force required to cause traversal just as the available force decreases increased. In this preferred embodiment, as the blind is lowered, Friction that impedes transverse movement of the rod while the force useful for producing rows is still reduced The force remains constant and small.

It is therefore an object of the present invention to maintain certain mechanical advantages during the raising motion to optimize the operation. Single control lift and tilt for Venetian blinds requiring little effort It is to provide a mechanism.

Another object of the invention is to reduce operating effort when raising heavy and long blinds. Provides a single control lift and tilt mechanism for Venetian blinds with Is Rukoto.

A further object of the invention is to raise long blinds with relatively small headrails. Offers a single control lift and tilt mechanism for Venetian blinds that can It is to provide.

Another object of the invention is to apply sufficient torque to ensure good closure. Single control lift and tilt mechanism for Venetian blinds that can be It is to provide.

A further object of the invention is to provide a close arrangement of ladder cords in positions of sufficient inclination. Provides a single control lift and tilt mechanism for Venetian blinds that allows Is Rukoto.

Yet another object of the invention is that the total torque required for tilting is Single control for Venetian blinds that should not be subjected to reactions during the raising movement The purpose of the present invention is to provide a lift and tilt mechanism.

A further object of the invention is to have minimal component parts and allow for easy assembly and operation. Single control rift for Venetian blinds that can be easily adjusted for The purpose of the present invention is to provide a tilting and tilting mechanism.

Brief description of the drawing Further objects, features and advantages of the invention will be apparent from the following detailed description considered in conjunction with the drawings. This will make it clearer.

In the drawing, Figure 1 illustrates this situation, which is necessary to produce traversal in the absence of other motion. 2 is a vector diagram of a force F1 equal to uW, which

Figure 2 is a vector diagram of forces F1 and F2 and their resultant force uW, where , Fl is much smaller than uW, and there is a pond motion at the same interface This is the force required to cause a transgression in a case.

Figure 3 shows the helad of a Venetian blind broken away to show the internal parts. FIG. 2 is an isometric perspective view of the rail.

FIG. 4 shows details of the raising and tilting parts and features of a preferred embodiment of the invention. FIG. 4 is an enlarged view of a portion of the mechanism in FIG. 3 to better illustrate the characteristics;

FIG. 5 shows the conventional system at a rising point showing the inclinator, traversing rod and cradle. FIG. 3 is an enlarged side view, partially in section, of the lift tilting mechanism of FIG.

FIG. 6 shows this tilter supported by a cradle in accordance with the principles of the present invention. FIG. 3 is a similar diagram of the same components in case.

FIG. 7 shows the tilter rotated 90 degrees during the blind raising operation. FIG. 6 is a diagram of the same components as FIG. 5; And Figure 8 shows how to raise the blinds. Another aspect of the invention using a spool for either cord or tape FIG. 2 is an enlarged side view, partially in section, of the embodiment.

Brief description of the drawing The general structure of the lift mechanism within the headrail is shown in FIG. Headle Wall 1 can have any normal cross-sectional shape with sufficient internal space to accommodate the parts. It's fine if it's from. A retaining mechanism 3, which may be of any wide range, is attached to the head. Preferably it is mounted at the end of the rail 1, but other arrangements are possible. some suitable operating means are required to operate the holding mechanism 3. In this case, Although a dowel loop 5 is shown, any number of retention mechanisms and operating means may alternatively be used. Some other combinations may also be used. Spline 7 connects to the output of holding mechanism 3. It is attached. Spline 7 connects disk 9 attached to transverse rod 11 , and a torque that can be slid in the axial direction between the holding mechanism 3 and the transverse rod 11. Form a carrying connection. The specific spline shown here that makes the connection to the retention mechanism and disk arrays are intended as examples only and other means of achieving the connection may be used. Stages may also be used without departing from the spirit and purpose of the invention.

The remaining parts inside the head rail are the removal of the lift cord 13 and rudder cord 15. associated with installation, control, and operation. One such cent or set is as would normally be provided for each set or pair of lift and rudder cords. cormorant. Identification of parts, forces, and operation descriptions for one of these lift and tilt components. set of ponds, and applied equally to the set of ponds. intended. In some blinds, a partial set or The set may be used in one or more locations. For example, Often has three rudder cords, but only two lift cords. stomach. This is done when two cords are sufficient to raise the blind. However, the central ladder cord does not properly support the slats or blind platelets. It is still necessary to do so. In such cases, the operation of the blinds may be It is the same as when described in relation to the components in a set or set.

The cradle 17 and tilter 19 are generally described in U.S. Patent No. 4.6. 97.630. Each of the ladder codes 15 side is attached to one of the two arms 21 of the tilter 19, as best seen in FIG. It is installed.

Lift cord 13 generally follows the principles of U.S. Pat. No. 4,623,012. through the hold at the bottom of the head rail. into the head rail, pass through the rollers 23 shown in FIG. 5 or by any other suitable means, the attachment to the rod 11 is at the position Terminates at.

FIG. 5 shows a transverse rod according to the principles of U.S. Pat. No. 4,623,012. A combination of prior art lift systems is shown and disclosed in U.S. Patent No. 4.697. It has a helical band tilter according to the principles of No. 630. The transverse rod 27 is , a clay having a bearing surface 31 shaped to receive the rod 27. Directly supported by $29. The tilter 33 is completely rotated around the rod 27. It is supported by the door 27.

FIG. 6 shows the tilt and lift of the invention with slats or platelets in horizontal position. The components of the software are shown below. In this figure, what is shown in Figure 4 is clearly visible in Figure 5. The arm 21, which is omitted because of this, would be in a horizontal plane passing through the center of the rod 35. . Inclinator 37 is wrapped around rod 35 as in the previous embodiment, but , in this case the tilter is supported on the bearing surface 41 on the cradle 43 It has a bearing 39. The flange 45 at the end of the tilter 37 is a rod 35 to avoid axial movement of the tilter 37 relative to the cradle 43. form a retaining barrier. The exterior surface of flange 45 is similar to that of U.S. Patent No. 4.623. ．． Camming 5 surface according to the principles of 012 specification 47. The angle is shown as angle 1fA in Figure 6. has been done. The desired magnitude of angle A is the lift cord 49 relative to the diameter of the rod. depends on the ratio of the diameters of Provides space for the incoming code, and this The cam action must provide sufficient movement to avoid riding up on the windings. Must be. When the blinds are completely lowered, most of the Very little blind weight when hanging from the ladder cord is supported on the surface between rod 35 and tilter 37. Instead of weight Most are supported on the bearing surface 41 between the cradle 43 and the tilter 37.

This reduction in the frictional force between the tilter and the traversing rod makes it easier to move the rod. allow it to move. With this improved bearing support for the tilter 37, The traversing rod 35 is fully restored to its starting position when the blind is fully lowered. There is much less tension on the lift cord 49 to ensure that the Needed. Figure 7 is the same as shown in Figure 6 during the blind raising operation. Indicates the constituent elements. The lift cord 49 is wrapped around the rod 35, so it is attached to the cam surface. 47, causing the rod 35 to move away from the cam surface and to the left side. Ru. The tilter 37 has a switch that loosens the grip of the tilter 37 on the rod 35. rotated sufficiently to the limits allowed by the top 51 to maintain its orientation. Hold only enough grip.

In this position, arms 53 are approximately vertical and the rudder cords (near (only the first rudder cord 55 is visible) is in a fully tilted position.

The mechanism of US Pat. No. 4,632,012 does not have a tilter. The cam surface Formed as part of the cradle. In the present invention, the cord is contact with ji. It is therefore necessary to incorporate a cam surface on this flange. Ru.

One of the features of the blind of the present invention is that the rod can be rotated in either direction. This means that the blinds can be raised. This is When the command is raised by counterclockwise rotation of the rod, the cam surface will move to the right. Yes, and requires it to be on the left for the opposite rotation. the blinds When being raised, the tilter rotates 90 degrees in the direction of rotation of the rod. this thing orients the cam surface 47 appropriately relative to its direction of winding of the lift cord. cam The action is between the point where the cord first contacts the shaft and the top of the shaft. Occurs in an arc of approximately 120 degrees. As shown in FIG. 6, the tilter 37 is horizontal. At some times, camming surface 47 occupies a lower portion of flange 45. tilter on one side When rotating 90 degrees in one direction or the other, the cam surface rotates to the required orientation position. .

In another embodiment of the invention, the tilter is also not operated by the operating rod. Directly supported by the cradle, in this case the operating rod is It simply rotates. In this type of single control blinds, the rise Alternatively, the raising motion may be performed by winding tape or cord onto the spool. be exposed. This type of blind does not have a traversing rod, but reduces operating friction. remains a serious problem, and no action should be taken on this equipment to address this serious problem. production engineering to achieve small improvements in the operating “feel” of the blinds. Several ingredients! A great deal of effort has been devoted to even the extent of being replaced.

FIG. 8 shows this diagram corresponding to the components of the preferred embodiment shown in FIGS. 5 and 6. 5 illustrates components of a raise and tilt motion for an example; The rod 57 It has a tilter 59 arranged around the head. The tilter 59 is connected to the axis of the cradle 65. It has a bearing groove 61 that is supported by a bearing surface 63 and rotates thereon. Cradle 6 5 is a cord on the spool 71 instead of a roller for guiding the lift cord. except that it has a slot 67 for guiding the card or tape 69. , similar to cradle 37 of the preferred embodiment. In this case, there is no rod traversal Therefore, the spool 71 is firmly attached to the rod 57 and rotates with it. Ru.

As previously mentioned, the tilter 59 is locked until it reaches its stop or stop position. It must rotate together with the door 57. The tilter then maintains a sufficient tilt The blind must remain in place while the rod 57 raises the blind. or continue to rotate in the tilter for lowering. Rotate to create sufficient slope. To ensure that there is sufficient grip of the tilter on the tube 57, In this case, friction control is important. But any additional friction between these parts The resistance simply adds to the effort to manipulate the blinds. From rod 57 By shifting the supporting load to the bearing surface 63 of the ladle 65, a considerable reduction in operating effort is achieved. You can get huge savings. In this example, the rod does not traverse, so the cam surface (The flange 73 of the tilter 59 is may have a partial surface.

It is clear from the foregoing that the above objectives are effectively achieved. There will be. and without departing from the spirit and scope of the invention, Since changes may be made to the configuration of the pulling clutch, the above description includes: All matters shown in the accompanying drawings are for illustration only and have a limiting meaning. is intended to be construed as if it were not.

Furthermore, the following claims cover all the features of the genus and species concept of the invention described herein. and the entire scope of the invention that can be said to exist between them as a matter of language. It should also be understood that the statement is intended to include all statements made by the author.

F7θl W IG2 FI6.5 Flθθ abstract A Heradrail device is proposed for raising and tilting Venetian blinds. Served. A single control operates both the lift and tilt functions. up the blinds each rudder in a manner that reduces the frictional forces encountered when raising or lowering it. A multi-turn band brake ramp is used with a cord. each ladder One end of the card is attached to the arm of the tilter. Inclinators have no intermediate parts , placed directly around the rotating drive rod, and in the prior art blinds. clamp mounted within the headrail rather than by the drive rod so that Supported by ladle. The drive rod has a tilter built into each of the cradles. Rotate the tilter and lift mechanism until it contacts the stopped stop. Further rotation , while the blind is being raised or lowered, the blind must be tilted sufficiently. keep it in good condition. In a preferred embodiment, the lift cord is attached to the drive rod. as the drive rod is rotated to raise the blind. The rods run transversely to accumulate the lift cords in a single layer. Rotating the rod in the tilter Rolling greatly reduces the lateral force required to traverse the rod. brine Provides an innovative bearing support so that the weight of the board is transferred directly from the tilter to the cradle , further reducing the frictional drag on the traversing rod.

Submission of translation of written amendment (Article 184-7, Paragraph 1 of the Patent Law) April 2, 1993

Claims (16)

[Claims] 1. With single control tilt and lift mechanism coupling device for Venetian blinds There it is, a rod that is rotatable in two directions along an axis; at least one rotatable polyurethane attached to the ladder cord of the swing blind. Several turns of the helical sloping member and the front at a position corresponding to the full slant in each direction of rotation. means for at least partially loosening the ramp member relative to the rod; attached to the rod, and wraps around the rod as the rod rotates. at least one lift cord that is unraveled from the at least one lift cord; at least one foot cord located substantially where the foot cord is attached to the rod; a hand for supporting the at least one helical member with a cradle of step by step, Single control tilt and lift mechanism coupling for Venetian blinds with Place. 2. A Venetian blind according to claim 1, wherein said rod comprises a transverse rod. Single control tilt and lift mechanism coupling device for. 3. forward in a first direction as the lift cord wraps around the rod; Claims further comprising first application means for applying a lateral force to the transverse rod. Connection of a single control tilt and lift mechanism for Venetian blinds as described in paragraph 2. combining device. 4. Said loosening means restrict rotatable movement of said ramp member to said fully tilted position. A unit for a Venetian blind according to claim 1, comprising means for limiting the Control tilt and lift mechanism coupling device. 5. The means for restricting the sloping portion on the rod in the fully slanted position. Claim 4 comprising at least one stop for loosening the grip on the material. Single-control tilt and lift mechanism coupling device for Venetian blinds on the market. 6. The at least one ramp member has a center portion configured to grip the rod. Claims comprising a central portion and two arms for receiving opposite ends of said ladder cord. A single control tilt and lift mechanism for Venetian blinds as described in paragraph 1 of this article. Coupling device. 7. The bevel according to claim 1, wherein the at least one ramp member is flexible. Single control tilt and lift mechanism coupling device for chamber blinds. 8. The inner diameter of the at least one ramp member is substantially equal to the outer diameter of the rod. are equal to each other, whereby the weight of said Venetian blind is equal to said at least one Claim 1, wherein two inclined members are tightened around the rod. Single control tilt and lift mechanism coupling device for Venetian blinds as described . 9. The at least one inclined member is arranged on the rod without any intermediate member. A single system for a Venetian blind according to claim 1 which is directly attached to the Coupling device for control tilt and lift mechanism. 10. The cradle includes an opening through which the ladder cord passes. Combining a single control tilt and lift mechanism for a Venetian blind according to paragraph 1 Device. 11. The first applying means allows the rod to move laterally in the first direction. 3. The lift cord includes a cam surface against which the lift cord presses to enable Single control tilt and lift mechanism coupling device for Venetian blinds. 12. The cam surface has the traverse rod for wrapping the lift cord around. Claim: wherein rotation of the rod is configured to move the transverse rod laterally. Single control tilt and lift mechanism for Venetian blinds according to paragraph 11 coupling device. 13. The cam surface is such that rotation of the traversing rod causes the lift cord to move onto the rod. 13. The venechambre according to claim 12, which is formed so as to be wound in a single layer. Single control tilt and lift mechanism coupling device for lined. 14. The at least one helical member is configured to forward the axial position of the helical member. claim 1 including a protruding flange for retaining against the cradle member; Combining a single control tilt and lift mechanism for a Venetian blind according to paragraph 1 Device. 15. The flange is connected to the lift control to allow the rod to traverse. 15. A Venetian blind according to claim 14, comprising a cam surface against which the board presses. Single control tilt and lift mechanism coupling device for. 16. The cam surface of the flange has dimensions of the rod and lift cord. of the Venetian blind according to claim 15, which is arranged at an angle depending on the Single control tilt and lift mechanism coupling device for.