DE19851208A1 - Roller blind end bar comprising L-shaped strip - Google Patents

Abstract

The end bar comprises a somewhat L-shaped strip (2) and at the lower end of the horizontal leg (2a) extending from it forms a groove (2c) with an upwardly facing vertical leg (2b) and this in a central area, having a downwardly facing connecting rib (2d). At the lower end of the connecting rib is formed a cross beam (2c) extending in the horizontal plane. The L-shaped strip with its connecting rib (2d) and the cross beam (2c) beneath it is connected articulatedly with a rocker (3) as vertically movable pivot beam. This means that the connecting rib and cross beam engage through a gap (3c) in a hollow space (3d) on the upper wall (3a), limited on both sides by support ribs (3e).

Description

The invention relates to a roller shutter end rod with a two-sided stop and the function, a shutter exit opening opposite the outer wall a downward open housing on the one hand and a window on the other hand, hermetically sealing the roll-off crossbeam and there to provide improved thermal and acoustic insulation, at the same time but also the hard stop still up as well as a hard open slap down to dampen the windowsill.

Devices are known as roller shutter stops in various types.

From the developmental history of mostly in the early stages of wood existing metal shutters are known, which were screwed onto the end rod from the outside.

In the course of further progress, with the advent of plastics load in a similar way hold angle in plastic used that just were screwed from the outside. Then circular plugs were made Plastic developed to be fixed from the inside with through screws and are still mostly used today. Such metal However, angles or plugs only form a selective stop in the end area of the roller shutter, so that the outlet opening prevents the penetration of Allows cold air and street noise unhindered.

Because the relatively thin inner wall of the roller shutter box as well as the revision cover the atmospheric influences only slightly against offer stand, but above all the inspection cover with its to the others Longitudinal edges bordering components have more or less leaky joints, arises particularly when the wind pressure compresses inside considerable drafts.

Roller shutter end bars with a continuous one along the side are also known Stop angle against the outer wall of the box, which, however, the outlet opening Cover only half of the opening.

A roller shutter end rod with a two-sided stop is recently known the published patent application DE 35 37 301 A1.  

This double-leg end bar, although it is characterized by the complete Ab Covering the outlet opening is an improvement, fulfills the not yet the purpose of effective sealing, still less but the secondary purpose of efficient handling as it turns out to be Inspection purposes on the roller shutter not or only by force of it can separate the closed rod.

The sealing of this double leg end rod is therefore not complete effective, because a roller shutter when pulled up to the stop due to the loosening of the belt reel housing, a little less and therefore small horizontal gaps still appear on both sides. Ande on the one hand, there is between the outer wall of the roller shutter box and the unwind traverse of the window, due to installation tolerances not always heights equality, creating a pre-existing gap to the outside or towards enlarged inside.

A major disadvantage of this double leg end rod is that that he with the barb formed on him in the subsequent Push in the roller shutter rod, but no longer for inspection purposes or can only be solved with brute force.

The present invention had the object of a double-sided Creating a stop that forms an effective hermetic seal, dampens the upstroke as well as the downstroke and as sovereign element effortlessly on any existing shutter end rod is feasible to also be used on old buildings.

The invention is illustrated and explained with reference to drawings:

Fig. 1 shows an L-shaped bar with a rocker-like coupling coupled by connecting bridge and crossbar with sealing and spring loops.

Fig. 2 shows a functionally identical system of the hinge connection, but as an alternative with tapered, inclined sealing springs.

Fig. 3 shows an alternative articulated connection between the L-shaped bar and rocker through an axial ball profile in an adequate cavity.

Fig. 4 shows the rocker in one of the height differences of the construction to be covered parts compensating inclined position.

As can be seen from Fig. 1, the main element according to the invention is a rocker ( 3 ) which, through a gap ( 3 c) existing in its upper wall ( 3 a) within a cavity ( 3 d) below it, with a crossbeam ( 2 e ) is connected in an articulated manner below a connecting web ( 2 d) to the horizontal leg ( 2 b) of the L-shaped bar ( 2 ).

The articulated swivel rocker ( 3 ) has the task, on the one hand, to close the shutter opening and, on the other hand, possible height differences between the box wall due to its mobility in the functional unit with its end areas of the upper wall ( 3 a), external sealing loops ( 3 i) ( 4 ) and the rolling crossbeam ( 5 a) of the window ( 5 ) to compensate.

From Fig. 4 it can be seen how the rocker ( 3 ) share the different height construction ( 4 ) and ( 5 a) follows by inclination.

The external sealing loops ( 3 i) above the wall ( 3 a) of the rocker ( 3 ), in addition to the sealing function against cold air, wind pressure and road noise, have the further task of damping a hard stop upwards.

The internal suspension loops ( 3 g) below the upper wall ( 3 a) of the rocker ( 3 ) have the task of pulling up the roller shutter and lowering it slightly - due to a slight weakening of the tension belt on the room-side belt roll housing - the resulting small one To compensate for the gap between the roll-off crossbeam ( 5 a) of the window ( 5 ) and the box wall ( 4 ) by their deformation.

The internal suspension loops ( 3 h) above the lower wall ( 3 f) of the rocker ( 3 ) has the importance of avoiding a rattling when the crossbar ( 2 e) of the L-shaped bar ( 2 ) is put down when the roller shutter is lowered.

The external sealing loops ( 3 j) below the lower wall ( 3 f) of the rocker ( 3 ) serve the purpose of forming a resilient closure compared to the window sill, not shown, and to mitigate a hard impact.

In Fig. 2 the alternative possibility is shown to achieve the sealing and sound insulation effect compared to the components ( 4 ) and ( 5 a) and the window sill by tapered, inclined, external sealing springs ( 31 ) of the rocker ( 3 ), the internal Compression springs ( 3 k) also counteract the lowering of the roller shutter and prevent a hard, clattering placement of the crossbar ( 2 e) on the lower wall ( 3 f) of the rocker ( 3 ).

The rocker shown in Fig. 3 ( 3 ) forms a variant of the articulation to L-shaped bar ( 2 ), with an axially extending Kugelkopfpro fil ( 2 j) engages in a spherical cavity ( 3 m) and the sealing elements from the external sealing loops ( 3 i - 3 j) or from the external sealing springs ( 3 l).

The rocker ( 3 ) is fastened with the L-shaped bar ( 2 ) in such a way that the bar ( 2 ) with its associated horizontal leg ( 2 a) and the vertical leg ( 2 b) emerging from the end forming a groove ( 2 c) surrounds the Rol loading end rod in the correct position at its lower end and with the clamping bar ( 2 f) molded on the inside in the upper area with the clamping lug ( 2 g) into the counter lug ( 1 ) on the upper front end ( 1 a) of the roller shutter end rod ( 1 ) 1 b) engages, two or more screws ( 2 i) being provided for the additional securing.

The need for a sovereign attachment of the rocker ( 3 ) with its associated L-shaped bar ( 2 ) to a pre-existing roller shutter end rod ( 1 ) results from the prerequisite that this must be detachable from the roller shutter for revision work.

The expediency of a sovereign attachment of the rocker ( 3 ) with its associated L-shaped bar ( 2 ) to a pre-existing end bar (i) with separation of the clamping web ( 2 f) and simple screwing results from the possibility of this sealing element also on old buildings to be used with exposed shutter openings and thus to save energy in the sense of the new thermal insulation regulation.

Reference list

1

Roller shutter bar

1

a top forehead

1

b Counter nose

2nd

L-shaped bar

2nd

a Horizontal leg

2nd

b Vertical leg

2nd

c groove

2nd

d connecting bridge

2nd

e Crossbar

2nd

f clamping web

2nd

g clamping nose

2nd

h trigger bridge

2nd

i screw

2nd

j Ball head profile

3rd

Seesaw

3rd

a top wall (b not declared)

3rd

c gap

3rd

b cavity

3rd

e support bridge

3rd

f lower wall

3rd

g Upper, internal suspension loop

3rd

h lower, internal suspension loop

3rd

i Upper, external sealing loop

3rd

j Lower, external sealing loop

3rd

k internal. Compression spring

3rd

l external sealing spring

3rd

m spherical hollow chamber

4th

Box wall

5

window

5

a roll-off crossbar

Claims (5)

1. Roller shutter end rod, for attachment to a roller shutter that moves in a U-shaped housing that is open at the bottom within the guide rail located by the outer wall and the window,
characterized by
that it consists of an approximately L-shaped bar ( 2 ), the outgoing at the lower end of it horizontal leg ( 2 a) with egg nem upward vertical leg ( 2 b) forming a groove ( 2 c) in the middle with a tel has the bottom-facing connecting web ( 2 d), at the lower end of which a cross bar ( 2 e) extending in the horizontal plane is formed and

• - That the L-shaped bar ( 2 ) with its connecting web ( 2 d) and the transverse bar arranged below it ( 2 e) with a rocker ( 3 ) is articulated as a vertically movable swivel beam in such a way that the connecting web ( 2 d) with the there cross bar ( 2 e) through a gap ( 3 c) in a cavity ( 3 d) - delimited by bilateral support webs ( 3 e) - engages on the upper wall ( 3 a) and
• - That underneath the upper wall ( 3 a), starting from the peripheral areas up to the support webs ( 3 e), a semi-circular elastic, inter ne suspension loop ( 3 g) is formed, the surface of the lower wall ( 3 f) approximately the distance between the thickness of the crossbeam ( 2 e) has the same dimensions as two mirrored internal suspension loops ( 3 h) and
• - That the rocker ( 3 ) on the outside of the upper wall ( 3 a) at the edge of each area is equipped with an external sealing loop ( 3 i) and on the outside of the lower wall ( 3 f) in the end area a mirror image arranged, external sealing loop ( 3 j).

2. Roller shutter end rod, according to claim 11, characterized in that the rocker ( 3 ) is formed with an acute-angled, in internal compression springs ( 3 k) and adequately molded, external sealing springs ( 3 l). 3. roller shutter end rod, according to one of the preceding claims, characterized in that the L-shaped bar ( 2 ) on its inside in the upper region an inwardly facing, resilient clamping web ( 2 f) sits, at the end of which is a semicircular or triangular clamping lug ( 2 g), which engages in cooperation with a counter lug ( 1 b) arranged on the upper end face ( 1 a) of the roller shutter end rod ( 1 ) and by means of a trigger web protruding upward above the clamping web ( 2 f) ( 2 h) can be solved on the roller shutter for inspection purposes. 4. roller shutter end rod, according to one of the preceding claims, characterized in that the L-shaped bar ( 2 ) with its connected NEN rocker ( 3 ) with the roller shutter end rod ( 1 ) with two or more screws ben ( 2 i ) is secured against possible disengagement of the clamp connection ( 2 g) with ( 1 b). 5. Roller shutter end rod, according to one of the preceding claims, characterized in that on the horizontal leg ( 2 a) of the L-shaped bar ( 2 ) outgoing connecting web ( 2 d) at its free end with an axially extending spherical profile ( 2 j) is formed, the (3 m) is embedded in an adequate ball-like hollow chamber, wherein the upper Wan extension (3 a) and the lower wall (3 f) with external sealing loops (3 i), and (3 j), or with external Sealing springs ( 3 k) and ( 3 l) is equipped.