DE3029179A1 - Sliding and swiVelling vertically slatted venetian blind - has turning plate swivelled on attaining set point in track in guide rail - Google Patents

Abstract

Vertical slats, with limited swivel and sliding sideways in a guide rail, have top and bottom corners interconnected via spacers, and are linked to a continuous draw cord or chain in a guideway in the rail, in a venetian blind. The draw medium (2B) is led out of the guide rail (1) with a loop (36). The turning device has a turning plate (13), non-rotatably connected to a slat (2) end. This is guided (21) in a track X in the rail, so that the plate is forcibly swivelled round when a certain section of the track is reached. The draw medium may pass out of the rail over pulleys, and is pref. led downwards. It can be a cord (28) with evenly distributed plastic balls (27).

Description

Venetian blind

The invention relates to a venetian blind with vertically arranged, about their longitudinal axis jointly limited pivotable and in a guide rail laterally sliding slats, each at their top and bottom corners by means of a spacer in the manner of a cord, chain or the like.

connected to the corresponding corner of an adjacent lamella are, and each at its one, preferably an upper end with one arranged in a guide of the guide rail, endless pulling means in the type of string or the like. are connected, which is connected to a drive means in Is to move longitudinally of the guide rail, one with a, namely preferably the first lamella cooperating turning means is present, by means of the lamella in question directly and the remaining lamellae via the spacer means are to be pivoted indirectly A slat blind is known in which on the first slat an operating rod is arranged with which this first slat and thus the in each case directly or indirectly via spacer means the type of ribbons, cords, chains or the like. preferably four times at the corners Move the other slats connected to it to the side as desired or required and in the extended state by pivoting the operating rod about its longitudinal axis can be swiveled or turned.

This well-known venetian blind has attracted interest because they both] for moving the slats as well as for turning the slats only extremely simple means are required, with as a control element only the operating rod mentioned is present, the one with the endless traction mechanism cooperates to perform one or the other function, depending on the choice, and where pivoting, as already mentioned, by turning the operating stick around it Longitudinal axis takes place, and the method of the slats practically by "pulling" the first slat is carried out by means of the operating rod and the other slats then due to the coupling via the spacer means of the first lamella each follow.

This known venetian blind is disadvantageous in that it is in front of a With such a blind provided window a relatively wide service aisle must be kept free, which is usually at least 60 cm or more wide.

However, in many applications this means a waste of space and results in positioning problems especially in office furnishings. There is also that it is obviously unfavorable if, for example, a desk 70 cm from is placed away from a window, as this means the lighting conditions are considerable be worsened.

Also with regard to the handling of this known slat blind problems have arisen as it has been found that the operators by excessive pulling the blinds in an unfavorable way can, so that this can lead to damage. It happens with one of these Handling added that the control rod adjacent first lamella relatively quickly becomes dirty and unsightly.

Also with regard to the generally desired universal applicability this known slat blind brings problems with it, as it is attached to windows or the like., where access is difficult, for example in particularly high rooms, may be the case between three-pane air-conditioning windows etc., a use possibly does not allow.

In order to at least partially counter these disadvantages, one therefore has created a blind known from DE-OS 16 59 592, in which the The operating staff is not regularly part of the turning device, but rather in which instead a reversing gear arranged in front of the first lamella is present is, which is designed to be displaceable and by means of a pull cord (or possibly also by means of a rotatable ejector rod) is to be actuated, one on the relevant Lamella attached, semicircular rack driven by the reversing gear and thus this lamella rotates resp.

pivots, which is due to the mutual coupling of adjacent ones Lamellas on the usually as chains or the like. trained spacer to do this leads to the fact that when the reversing gear is actuated, the remaining slats are also moved Rotate the curtain around its respective axis. The lateral movement of the slats takes place in this known blind via an additional pull cord.

It can be seen that these blinds known from DE-OS 16 59 592 essentially does not have the disadvantages mentioned above. It is meanwhile but obviously provided with other disadvantages, which are first of all, that different and separate from each other for the method and pivoting Controls are required. This not only requires a corresponding one Effort, but also leads again and again to mix-ups in the case of the concerned Operator often enough out of a certain annoyance about the mix-up lead out to particularly strong, per se unnecessary actuations, which on their part can ultimately cause damage.

With regard to the effort to be driven, in particular the to mention relatively complex reversing gear.

It is a disadvantage that in the 16 59 592 known from DE-OS Louvre blinds also have a disengageable locking claw or the like. is required, which locks the blind in the extended state, as this is known Venetian blind swiveling of the slats is only possible when they are fully extended and is locked in this state. But this does when handling the blind - About the two different "drives" to the process on the one hand and to the On the other hand, swiveling out - an additional operating step required, which is aimed at engaging or releasing the locking claw.

The present invention is based on the object of the known Louvre blinds of the type described above, avoiding their disadvantages to improve, and to create such a blind that is independent of the spatial Conditions and other installation circumstances can always be used without this requires an operating aisle in front of the blind, and in which operating error by pulling the blinds at an angle or soiling of the blinds due to the operation can occur, the method and the pivoting still with only one Actuating means should take place without the need for an expensive gear or the like. requires, and without a for initiating the turning or pivoting process special operating step, such as engaging or disengaging a Locking claw or the like. is required.

According to the invention, the solution to this problem is characterized in that that the traction means for the slats is at the same time drive means and accordingly with a loop is led out of the guide rail and preferably downwards hangs, so that the part of the traction means forming loop for the operator can serve as an actuating means, and that the turning means with one end a lamella rotatably connected insert or the like.

having, with a guide means in one in the guide rail trained guide track is guided so that the insert when reached a certain section of the guideway is inevitably pivoted.

It can be seen that the venetian blind according to the invention despite their functionality and their simplicity in terms of their operation are extraordinary is simply constructed and due to their relatively simple and robust Design guarantees a relatively long service life from the outset.

The traction means is preferably removed from the guide rail via pulleys led out, preferably at one end of the guide rail, wherein Depending on the application, a frontal lead out of the guide rail or leading out downwards or leading out on a longitudinal side of the guide rail regardless of the circumstances and requirements as feasible and appropriate have shown.

The traction means is preferably in the form of a cord in a manner known per se formed and can expediently from one with plastic balls Equal pitch provided cord, which is expediently attached to the cord can be injected.

The guide means of the insert can in a certain embodiment of the present invention from two spaced guide pins or the like. exist whose distance in the direction of the longitudinal direction of the guide rail is measured.

In addition, the insert can also use a second Guide means be guided in a second guide track of the guide rail, wherein the first and optionally the second guideway are essentially linear are and each have a curved section at one end, which is expediently and can accordingly preferably be circular.

The second guideway, if present, is designed as a linear groove, which lies between the two longitudinal sections of the first guide track.

The width of the groove-shaped opening of the first guideway for Passage of the guide means guided with it and passing through it is preferably smaller than the greatest thickness of the traction means, for example the diameter of the balls sprayed onto a cord serving as a traction device, so that the traction device does not come out of the groove-shaped opening downwards can, but is held in the guide rail. The first and second guide means, which are expediently designed essentially as pins, are expedient arranged at the top of the insert while the insert can have a U-shaped projection on its underside, which is used for the non-rotatable connection can encompass one end of a lamella in a form-fitting manner with the lamella in question, it should also be noted that the insert is expediently triangular, and preferably in the form of an isosceles triangle can.

Preferred embodiments of the present invention are shown in Described subclaims. The invention is based on an exemplary embodiment below further explained with reference to a drawing. It shows: Fig. 1 an end Head piece of the guide rail of a venetian blind according to the invention with a first lamella in perspective, with the cover and the partition walls have partially broken away for the sake of clarity; FIG. 2 corresponds to FIG. 1 Representation in which the insert is in the curved end area of the first Guide track is located and has already initiated pivoting of the blind; Fig. 3 is a perspective view (partly as an exploded view) of Turning plate with the parts directly engaging it; Fig. 4 is a somewhat simplified shown, perspective view of the other portion of the guide rail with an actuating means (ball cord) led out laterally from the guide rail; Fig. 5 shows a representation corresponding to FIG. 4 with actuating means led out downwards; and FIG. 6 shows a section through the housing of the guide rail.

Fig. 1 of the drawing shows part of a venetian blind according to the invention in a perspective view, namely one end portion of the guide rail 1, some of which has been broken away for the sake of clarity, and the upper section of a first lamella 2.

As can be seen from Fig. 1, the slats 2 are arranged vertically. They are common by means that will be described in detail below pivotable about their respective longitudinal axis 3 according to the double arrow 4 and beyond movable, i.e. displaceable in the guide rail 1 in the direction of the double arrow 6.

The rectangular slats 2 are each at their upper and lower corners 7 with the corresponding corner 7 by means of a spacer means 8 an adjacent lamella 2 connected, so that in each case two adjacent Lamellae 2 and the spacing means 8 connecting them at the upper and lower ends Form a parallelogram, which deforms when pivoting. The distance means 8 each consist of sections of a in the illustrated embodiment with approximately spherical plastic bodies 9 sprayed cord 11, wherein each of a spacer 8 forming cord sections 11 each on the outer End portions of the respective plate carrier 12 are attached.

As can be seen from Fig. 1 of the drawing, the louvre blind a preferably plate-shaped turning means, which above and below also is briefly referred to as insert 13. The insert 13 has on its underside 14 one consisting of two legs 16 parallel to one another, as it were U-shaped Approach that encompasses the lamella carrier 12 with the attached lamella 2 in a form-fitting manner and accordingly for a rotationally fixed connection between the insert 13 and the first Lamella 2 ensures. At its top 18, the insert 13 is flat and guided on the underside 19 of the guide rail 1.

As can be seen in FIG. 1, in particular also from FIG. 3, which the insert 13 in a perspective view (partly in an exploded view) shows, there are on the top 18 of the insert 13 two with each other Distance a arranged guide pins 21, which from the underside 19 of the guide rail 1 by a first guide track 22 of the guide rail formed on the underside 19 1, which protrude as a continuous groove or slot in the bottom of the guide rail 1 is trained.

In order to ensure particularly good guidance of the insert 13, sit on the guide pins 21 also guide washers 23 on the inside of the guide channel 24 containing the slit-shaped first guide track 22 are in contact, the width of which is slightly greater than the diameter of the guide disks 23.

As can be seen in particular from FIG. 3, in which the Guide washers 23 are omitted for the sake of clarity, are on the guide pins 21 the ends of an endless traction means 26 arranged in the guide rail 1 attached, which is formed just like the spacer means 8, so as a cord 28, onto which balls 27 made of plastic with the same pitch are injection-molded are.

As can also be seen from FIG. 3, the connecting line lies of the two guide pins 21 parallel to an edge of the insert 13, which is designed as an isosceles triangle in plan view.

At the corner 29 of the insert 13 opposite this edge there is a second guide means 31, which is also essentially as Pin is designed and, as it were, forms a shaft of the plate carrier 12, this second guide means 31 being provided with two rollers 32.

The pin 31 which, as it were, forms the shaft of the disk carrier 12 protrudes through a second guide channel 33 of the guide rail 1 from the underside thereof 19 from into the guide rail 1 and is on the inside of the guide rail 1 supported by the rollers 32.

The second guide channel, which is also slit-shaped, extends are only linear in the guide rail 1, while the two are linear to each other Sections of the first guide channel 24 each have semicircular sections at the end face connect which connect the linear sections together and together form a closed loop with these.

As can be seen from FIGS. 4 and 5, the traction means is 26th on the side opposite the end section according to FIG. 1 from the guide rail out, where it is previously deflected over pulleys 34 and outside the guide rail 1 forms a loop 36 which the operator uses as a handle or actuating means can serve.

In the embodiment according to FIG. 4, the lead out takes place at the end one of the two longitudinal sides 37 of the guide rail 1, while in the design 5 the traction means 26 downwards, i.e. from the bottom of the guide rail 1, is brought out.

If it is desired and expedient, the traction means 26 could be seen also, for example, on the end face 38 located there from the guide rail 1 be brought out.

It should also be noted that the width of the slot of the first Guide track 22 is smaller than the diameter of the balls 27 of the traction means 26, so that the traction means 26 cannot emerge from the guide rail 1 in a downward direction. Apart from the fact that the pulling means 26 by means of the guide disks or rollers 23 etc.

is well guided in the guide rail 1, offers the guide the guide pins 21 existing slot at the same time a certain guide for the balls 27 of the drawstring 26.

The mode of operation of the slat blinds according to the invention is as follows: Are the slats 2 of the curtain in the closed or pushed together Condition of that person End portion, which is shown in FIG End section is opposite, and the operator actuates the pulling means 26 on the loop 36 in the direction of arrow 39 (see Fig. 4, 5), so moves due to the movement of the pulling means 26 and the guide pins 21 connected to it together with the turning plate 13, the first lamella 2 held on this in the direction of movement or displacement (in the drawing) to the right and first take the adjacent and then the adjacent lamella, etc. with when the distance means 8 are each tensioned until the first lamella 2 is the end of the linear section of the guideways 22, 33 has reached. This state roughly agrees with the Position according to FIG. 1 match.

If the traction means 26 is then actuated further, the insert arrives 13 with their guide pins 21 at the front end of the guide rail 1 in the circularly curved section of the first guide track 22 and is entrained the first lamella 2 is constantly turned or pivoted. An intermediate state of this The pivoting movement is shown in FIG.

A pivoting of the first lamella 2 has due to the coupling At the same time, all subsequent slats are pivoted via the spacer means 8 result.

The pivoting process can go so far until adjacent longitudinal edges of adjacent slats 2 come into mutual contact, or until in another way, for example by suitable stops, the limit position of the pivoting movement is reached, wherein in the pivot limit position, the slats a substantially running parallel to the guide rail 1 Position.

You don't want to have the blinds closed, but completely or partially open, the operator only needs on the loop 36 of the traction device 26 in the direction of arrow 41 (see Fig. 4 or 5).

Because then there is a movement of the pulling means 26 in the opposite direction Sense, the turning plate 13 in turn from the circularly curved area its first guide track 22 arrives in the linear section (it is in each case at the same time guided by means of the second guide pin 31 in the second guide channel 33, whereby the second guide pin 31 acts as a pivot axis for the insert 13), so that the pivoting process now works in the opposite direction, i.e. in the direction of opening, he follows.

Correspondingly, reverse the procedure described above If necessary, the lamellas then move back together to form a package.

It should also be noted that at that end of the guide rail 1, on which the loop 36 is located, a locking piece or the like. for the last slat 2 is located in order to ensure that the opening and pivoting process does not continue can be when the slats 2 are fully extended and the spacer means 8 are therefore in the tightened state.

It can be seen that the slat blinds according to the invention are compared is extremely simple with other known venetian blinds, though only a single control element, namely the loop 36 of the traction means 26, is available for all operating functions. It takes place in spite of the extremely simple structure and the associated low production costs when the slat curtain is pulled out, an even, continuous swiveling process is automatic, without this any additional parts are required, as in the previously known State of the art possibly still operated by means of a separate operating step would have to be.

The operating member, so the loop 36 of the traction means 26 is located stationary on the guide rail 1, so that an operating aisle in front of the louvre blind is not required. Since the control unit is flexible and accordingly practical can be deflected on all sides, the operator can possibly also with a certain distance to the venetian blind. Despite these significant advantages, it can be seen find a guide rail with relatively small dimensions use, so that the louvre blind according to the invention also insofar as known blinds comparable Is kind of superior.

REFERENCE NUMERALS 1 guide rail 1 2 (first) lamella 3 longitudinal axis (of 2) 4 arrow 4 6 arrow 6 7 corners (of 2) 7 8 Spacer 8 9 plastic body (from 8) 9 10 - 10 11 cord (from 8) 11 12 lamellar carrier 12 13 Insert 13 14 Bottom (of 13) 14 15 - 15 16 legs) U-shaped Neck (of 13) 16 17 Leg 17 18 Top (of 13) 18 19 Bottom (of 1) 19 20 - 20 21 guide pins (from 13) 21 22 first guide track (from 1) 22 23 guide washers 23 24 guide channel (from 1) 24 25 - 25 26 traction means 26 27 balls (from 26) 27 28 Cord (of 26) 28 29 Corner (of 13) 29 30 - 30 31 second guide means (from 13) 31 32 rollers (from 31) 32 33 second guide channel (from 1; for 31) 33 34 pulleys (for 26) 34 35 - 35 36 loop (of 26) 36 37 long side (of 1) 37 38 Front (of 1) 39 Arrow 39 40 - 40 41 Arrow 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 55 56 56 57 57 58 58 59 59 60 60 61 61 62 62 63 63 64 64 65 65 Blank page

Claims (17)

CLAIMS 1. Venetian blind with vertically arranged to your Longitudinal axis jointly limited pivotable and laterally in a guide rail sliding slats, each at their upper and lower corners by means of a Spacer means connected to the corresponding corner of an adjacent lamella are, and each at one end with a guide in the guide rail arranged, endless traction means in the manner of a cord, chain or the like. tied together are, which can be moved with a drive means in the longitudinal direction of the guide rail is, wherein a cooperating with a lamella turning means is present, with the lamella in question directly and the remaining lamellae via the spacer means are to be pivoted indirectly, characterized in that the pull means (26) with a loop (36) is led out of the guide rail (1); and that the turning means one with one end of a lamella (2) rotatably connected to the turning plate (13) or the like. having which with a guide means (21, 31) in one in the Guide rail (1) formed guide track (22 or 33) is guided in such a way that that the turning plate (13) upon reaching a certain section of the guideway (1) is inevitably pivoted. 2. Slat blind according to claim 1, characterized in that the Pull means (26) at one end of the guide rail (1) via pulleys (34) the guide rail (1) is led out. 3. Slat blind according to claim 2, characterized in that the Pulling means (26) is led out of the front side of the guide rail (1). 4. Slat blind according to claim 2, characterized in that the Pulling means (26) is guided downward out of the guide rail (1) (Fig. 5). 5. Slat blind according to claim 2, characterized in that the Pulling means (26) on a longitudinal side (37) of the guide rail (1) led out of the latter is. 6. Slat blind according to one or more of the preceding claims, characterized in that the traction means (26) in a known manner from a There is a cord (28). 7. Slat blind according to claim 6, characterized in that the Pulling means (26) made of a known cord (28) with plastic balls (27) consists, which are attached to the cord (28) in the same pitch. 8. Slat blind according to one or more of the preceding claims, characterized in that the guide means of the turning plate (13) two with mutual Has spacing (a) arranged guide pins (21). 9. Slat blind according to one or more of the preceding claims, characterized in that the turning plate (13) additionally by means of a second Guide means (31, 32) in a second guide track (33) of the guide rail (1) is performed. 10. Slat blind according to one or more of the preceding claims, characterized in that the essentially linear first and optionally second guide track (22 or 33) at least one end has a curved section having. 11. Slat blind according to one or more of the preceding claims, characterized in that the traction means (26) with its two ends (at 21) is attached to the turning plate (13). 12. Slat blind according to one or more of the preceding claims, characterized in that the first guide track (22) has two mutually parallel Has longitudinal sections, each interconnected by a circular arc-shaped section are connected. 13. Slat blind according to one or more of the preceding claims, characterized in that the second guide track (33) as a linear, slot-shaped Groove is formed between the two longitudinal sections of the first guide track (22) lies. 14. Slat blind according to one or more of the preceding claims, in particular according to claim 13, characterized in that the width of the groove-shaped Opening of the first guide track (22) is smaller than the greatest thickness of the Drawstring (26 or 27). 15. Slat blind according to one or more of the preceding claims, characterized in that the turning plate (13) is triangular, and preferably is in the form of an isosceles triangle. 16. Slat blind according to one or more of the preceding claims, in particular according to claim 15, characterized in that the first and optionally second guide means (21 or 31) on the top (18) of the insert (13) are arranged, and that the insert (13) on its underside (14) a U-shaped projection (16, 16), the form-fitting with a narrow end of a Lamella (2) cooperates. 17. Slat blind according to one or more of the preceding claims, characterized in that the turning plate (13) with its U-shaped extension (16, 16) facing away from the top (18) on the underside (19) of the guide rail (1) is led.