DE7717924U1 - SLATER BLINDS - Google Patents

Description

Dipl.-Ing. Dr. jur. Alfred W. Meyfer ' ! . ''' M rfüsse dorfi

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Patent attorney Kreu = -. Stras _e 30

Telephone: (0211) 325964

Memo sign: 699o A 59 Düsseldorf, den! February 7, 1980

File number: G 77 17 924.9

Applicant: Hunter Douglas Industries b.v.

Piekstraat 2, KOTTERDAM / Netherlands

Slats. Blind

The invention relates to a venetian blind, with slats, on each side of which a holding and Engages guide element, which is connectable to the slat fastening part, a pivot part and has one with two arm parts radially to this extending guide arm, and with at least a flexible actuator which is connected to one end of an arm part.

The holding and guiding elements of such a venetian blind have so far been designed and arranged in such a way that that in the closed position of the slats the connection point of the actuator to that in the closed position of Slat is located in each upper arm part above the pivot part. The possibility of using the guide arm on the moment acting on the slat in the closing direction

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upper arm part (15a) opposite the axis of the Pivoting part (12) is offset a bit towards the inside of the slats, that this offset by a such angular position z-wisohen that in the closed position upper arm part (13a) of the guide arm (13) and the lamella (1o) is formed that in the closed position of the lamellas (io) from the connection point (pin 17) of the flexible actuator (14) through this actuator (14) on the Schwenkceil (12) in Torque acting in the closing direction can be maintained that the pivoting part (12) adjacent area of both arm parts (13a, 13 * 0 to that by the length and width of a slat

(10) each determined average extension level of the lamellas (io) runs at an acute angle, while the end of the arm part (13a, 13b) is angled in a direction approximately parallel to this plane, and that the arm parts (13a, 13b) on their ends are each provided with a pin (17), which is in sight on the fastening part

(11) and extends parallel to the pivoting part (12) and its end by means of a cross-sectional reinforcement (17a) is designed as part of a snap lock, the other part of which is connected by a hinge (2o) attached to the arm part (13a, 13b) and provided with an opening (18) tab (19).

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bring, was therefore previously eliminated when the closed position was reached. As a result, : the slats of the closed venetian blind often

■? not due to minor external interference

h lie sufficiently close to one another or for

For example, in the case of higher loads from wind or similar tends to generate annoying noise.

Proceeding from this, the invention was based on the object of creating a slatted blind of the type mentioned at the beginning train that a sufficiently tight or firm fit of the slats against each other in the closed position is guaranteed.

To solve this problem it is proposed according to the invention that that the connection point of the actuator to / λ the upper arm in the closed position of the lamella

part opposite the axis of the pivoting part is offset a little towards the inside of the lamellae.

This ensures that the hanging on the upper arm part of the guide arm due to its own weight Lamella and also in the closed position via the lever arm formed by the offset proposed according to the invention of the lamellas there is still a moment by which the lower edge of one lamella on the

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Outside of the next lower lamella is pressed.

The lamellas thus close better, that is to say that in <

the border areas between the slats the passage %

is suppressed by light or air and that also the development of noise caused, for example, by wind

is reduced. \

^ - According to the invention, it is advantageous if the said j

Offset by such an angular position between the '■

in the closed position upper arm part of the guide arm and

the lamella is formed that in the closed position of the i

Lamellae from the connection point of the flexible actuator

from duroh this actuator on the swivel part in _s

Maintain the torque acting in the closing direction

can be. \

ζ In a further embodiment of the invention, <

suggest that the area adjacent to the swivel part? of the arm part to the average extension determined by the length and width of a lamella

plane of the lamella runs at an acute angle,; while the end of the arm part in one to this plane

is angled approximately parallel direction. ;

The advantage that can be achieved in this way is that the

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Help

Führuftgsarm the area of said extension plane leaves relatively quickly, so that the attachment of the flexible actuator to the arm parts of the guide arm is not hindered by the lamella or its fastening part.

It is advantageous here if not only the first one extends upwards in the closed position of the lamella Arm part, but also the downwardly extending second arm part of the guide arm in a corresponding manner formed and mirror-symmetrical with respect to the pivot part to the upwardly extending first arm part is.

According to a further proposal of the invention, the louvre blind is designed so that the arm parts their ends are each provided with a pin that the end of the pin as part of a snap lock is formed and that another component of the snap fastener by a joint with the Arm part is connected. The part of the flexible actuator to be connected to the guide arm, the is usually in the form of an eyelet or loop, is placed over the pin and is after the closure of the Snap fastener firmly and securely connected to the arm section. Regardless of whether in any operational

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Positions of the slat blinds in this fastening area are larger or sometimes even at all no forces are to be transmitted is uncontrolled Loosening this connection is impossible.

It is advantageous here if a strap is attached to the arm part by means of the joint and if the ßchnappverschluß is formed by an opening in the flap and a cross-sectional reinforcement at the pin end.

The pin can expediently extend in the direction of the fastening part and parallel to the pivoting part. It is also favorable if the joint is a material joint formed by a cross-sectional weakening in the tab is.

An exemplary embodiment of the invention is described in more detail below with reference to a drawing. In detail demonstrate:

FIG. 1 shows a plan view of the end of a lamella with the holding and guiding element attached to it;

FIG. 2 shows a louvre blind with two lamellae resting against one another in the closed position.

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As can be seen from FIG. 1, a holding and guiding element is connected to a lamella Io Fastening part 11, a pin-shaped pivoting part 12 and a guide arm 13 is formed, the arm parts 13a and 13b extend radially to the pivot part 12.

At the free end of each arm part 13a or 13b is a flexible actuator 14 attached in a manner to be described later, and? was with the help of Loops 14a. All holding and! Guide elements of the louvre blind are just like the actuating elements 14 arranged within the profile I5.

As can be seen from FIG. 2, each arm part 13a or 13b initially extends from the pivot part 12 in a pointed manner Angle with respect to an extension plane 16 corresponding to the overall course of all lamellas in the closing direction, which is entered here with a dash-dotted line. The fastening parts 11 also lie in this plane acute angles can be between 15 ° and 30 °.

In the further course, the arm parts 13a and IJb are then angled in a plane parallel to the direction of the plane of extension 16. Figure 2 shows that the ends the arm parts 13a and 13b are accessible without hindrance through the slats Io.

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At the ends of the arm parts 13a and 13b are each I

parallel to the axis of the pivot part 12 and in the direction i

on the lamella Io extending pin 17 is provided, |

the free ends of which have a cross-sectional reinforcement 17a

point. The latter is in its shape and size on a j

Matched opening 18, which is formed in a tab 19 \

is. The latter can be pivoted on the respective arm part)

13a or 13b attached via a joint 2o,

in this case by a simple cross-section |

Weakening formed and otherwise a so-called Ma- f

material joint is. After thinking about a loop 14a |

On the pin 17, the tab 19 is on this!

printed, the tab 19 and the pin 17 a
Form snap lock, so that the respective actuator 14 is reliably and securely attached.

( As can be seen from Figure 2, is in the closed position

Slats Io of the pin 17 located on the upper arm part 13a, which is the attachment point on the
flexible actuator 14 is opposite to the pivoting part
12 offset a little towards the inside of the slats in the horizontal direction. This one in the upper part of the
I ¹ XgUr 2 designated by the number 21 is the lever arm
Reason for the fact that in the closed position shown here there is still such a moment on each lamella
1o is exercised that the lower edge of the same from the outside

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printed against the upper edge of the next lower lamella Io or is brought to the system on this.

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Reference number list

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Ao Lamella 11th Fastening part 12th Swivel part 13th Guide arm 13a Arm part 13b Proportion 14th Actuator 14a loop 15th profile 16 Extension plane 17th Cones 17a Cross-sectional reinforcement 18th opening 19th Tab 2o joint 21 Lever arm

Claims (1)

I ■ I ■ V 1 I 1) -1ο- claims: 1. Slat blind, with slats on each side a holding and guiding element engages which has a fastening part that can be connected to the lamella, has a pivot part and a guide arm with two arm parts extending radially to this, and with at least one flexible actuator, which • is connected to one end of an arm part, characterized in that the connection point (pin 17) of the actuating member (14) on the one in the closed position of the lamella (io) each upper arm part (13a) relative to the axis of the pivoting part (12) is offset a little towards the inside of the lamellae. 2. Slat blind according spoke 1, characterized in that this offset by such Angular position between the arm part (13a) of the guide arm (13), which is upper in the closed position, and the lamella (1o) is formed that in the closed position of the slats (1o) from the connection point (pin 17) of the flexible actuator (14) through this actuator (14) on the pivoting part (12) in the closing direction acting torque can be maintained. - 11 - 3. Slat blind according to claim 1 or 2, characterized in that that the area of the arm part (13a, 13b) adjoining the pivoting part (12) becomes the through the Length and width of a lamella (1o) each determined average extension plane (16) of the Lamellae (io) runs at an acute angle, while the end of the arm part (13a, 13b) in one to this Plane (16) is angled approximately parallel direction. 4. Slat blind according to claim 3> characterized in that that apart from the first arm part (13a) of the guide arm (13) extending upwards in the closed position also the downwardly extending second arm part (13b) formed in a corresponding manner and in Relation to the pivoting part (12) to which is upward extending first arm part (13a) mirror-symmetrically is. 5. Slat blind according to one of the preceding claims, characterized in that the arm parts (13a, 13b) are provided at their ends with a pin (17) that the end of the pin (17) as a component a snap lock is formed and that a further component (19) of the snap lock is connected to the arm part (13a, 13b) by a joint (2o). - 12 - "f 'i · ·' · r c r «T ^v c« .mc _v ? T ( - 12 - §. ^{Slat blind} according to claim 5, characterized in that by means of the joint (2o) a tab "(19) is attached to the arm part (13a, 13b) and that the snap lock is through an opening (18) is formed in the tab (19) and a cross-sectional reinforcement (17a) at the pin end. 7. The venetian blind according to claim 5 or 6, characterized _v in that the pin (17) in the direction of the fastening part (11) and extends parallel to the pivot part (12). 8. Slat blind according to one of the preceding claims, characterized in that the joint (2o) is formed by a cross-sectional weakening in the bracket Material joint is. 9. Venetian blinds after one or more of the previous ones Claims, characterized in that the connection point (pin 17) of the actuator (14) the one in the closed position of the lamella (1o) 1 t