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EP0300177B1 - End piece for guiding lamellae - Google Patents

End piece for guiding lamellae Download PDF

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Publication number
EP0300177B1
EP0300177B1 EP88108854A EP88108854A EP0300177B1 EP 0300177 B1 EP0300177 B1 EP 0300177B1 EP 88108854 A EP88108854 A EP 88108854A EP 88108854 A EP88108854 A EP 88108854A EP 0300177 B1 EP0300177 B1 EP 0300177B1
Authority
EP
European Patent Office
Prior art keywords
slat
end piece
locking portion
recess
supporting
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 - Lifetime
Application number
EP88108854A
Other languages
German (de)
French (fr)
Other versions
EP0300177A1 (en
Inventor
Hansjörg Rettig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMIL SCHENKER AG
Original Assignee
EMIL SCHENKER AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EMIL SCHENKER AG filed Critical EMIL SCHENKER AG
Priority to AT88108854T priority Critical patent/ATE56246T1/en
Publication of EP0300177A1 publication Critical patent/EP0300177A1/en
Application granted granted Critical
Publication of EP0300177B1 publication Critical patent/EP0300177B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/327—Guides for raisable lamellar blinds with horizontal lamellae
    • 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
    • E06B9/38—Other details
    • E06B9/386—Details of lamellae

Definitions

  • the invention relates to an end piece for guiding the slats of slat blinds in the lateral guide rails according to the preamble of patent claim 1.
  • the object of the present invention is to improve an end piece of the type mentioned at the outset in such a way that its durability and strength are substantially increased and assembly is made easier.
  • this object is achieved by a connecting piece according to the characterizing features of claim 1.
  • the end piece can be connected to the slats fully automatically using simple devices.
  • the supply of the initially integrally formed connecting part to the assembly machine is easy to accomplish, and the punching in the lamella can be carried out in a punching stroke running parallel to the assembly of the end piece.
  • FIG. 1 an end piece for a slat 3 (shown in dash-dotted lines) is shown with reference numeral 1 before it is connected to the slat 3.
  • the end piece 1 consists of an elongated body, one end 5 of which is split by a recess 7 in an underlying support part 9 and an upper locking part 11.
  • the support part 9 is essentially rigidly connected to a bolt 13 which engages in a guide 15 which guides the slats 3 in the vertical direction of displacement.
  • the guide 15 is only shown in a hint, since it is not the subject of this invention and its design can be adapted to the respective needs.
  • the supporting part 9 consists essentially of a supporting surface 17 receiving the lamella 3, on which a cam 19 centering the lamella 3 is attached.
  • the cam 19 is penetrated by an opening 21, the cross section of which undergoes an abrupt widening in the lower region, forming a shoulder 23.
  • the cam 19 may have a round, elongated (as shown) or any other cross section.
  • the latching part 11 has a pressing surface 25 which is parallel to the supporting surface 17 and on which a preferably mushroom-shaped projection 27 is attached.
  • the projection 27 and the opening in the cam 19 have, as is known in the case of snap-in connections, complementary shapes, the distance between the surfaces 17 and 25 corresponding to the thickness of a lamella 3 in the engaged state.
  • the latching part 11 is connected to the supporting part 9 via a predetermined breaking area 29.
  • the predetermined breaking area 29 is circular and connects a peg-like extension 31 on the latching part 11 to the upper edge of a bore 33 in the supporting part 9 that is congruent with the extension 31.
  • the locking part 11 and the support part 9 preferably have the same outer shape.
  • the end pieces 1 are pushed axially onto the lamellae 3 by hand or by machine to an assembly machine (not shown) and centered with their punched-out recess on the cam 19. Now the mutual position of the lamella 3 and the end piece 1 is clearly defined. With a force F acting vertically from above on the locking part 11, the locking part 11 is pressed down. The connection breaks in the predetermined breaking area 29, and the extension 31 slides into the bore 33. In parallel, the projection 27 penetrates the recess in the lamella 3 and the opening 21 in the support part 9. The mushroom-like expanded edge of the projection 27 becomes during the passage pressed through the opening 21 and then engages in the shoulder 23.
  • the geometric dimensions of the projection 27 and the opening 21 are dimensioned such that, after the two parts have engaged, the lamella 3 is immovably clamped between the supporting part 9 and the latching part 7.
  • the tolerances on the fastening device and the material used can be selected such that the detent part 11 can only be separated from the supporting part 9 by force and the parts are destroyed.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Fishing Rods (AREA)
  • Threshing Machine Elements (AREA)
  • Connection Of Plates (AREA)

Abstract

1. End piece (1) for the guiding of slats (3) of slated blinds in the lateral guide rails (15), one end (5) being connectable securely to the slat (3) and having a projection (27) for engaging in a recess in the slat (3), and the other end of said end piece being constructed as a pin (13) insertable in the guide rail (15), characterised in that the end (5) which is connectable to the slat consists of a lower supporting portion (9) connected securely to the pin (13) and of an upper locking portion (11) held by a predetermined breaking region (29), said locking portion (11) being adapted to be inserted in the supporting portion (9), overcoming the resistance to breaking, and to be latchable in the latter portion.

Description

Gegenstand der Erfindung ist ein Endstück zum Führen der Lamellen von Lamellenstoren in den seitlichen Führungsschienen gemäss dem Oberbegriff des Patentanspruches 1.The invention relates to an end piece for guiding the slats of slat blinds in the lateral guide rails according to the preamble of patent claim 1.

Ein Endstück dieser Art ist aus der US-PS 2 770 296 bekannt. Für dessen Befestigung an einer Lamelle ist endseits ein Schlitz vorhanden, in den das Lamellenende eingeschoben und kraftschlüssig gehalten wird. Dabei rastet der an einer Schlitzseite angebrachte Vorsprung formschlüssig in die entsprechende Ausnehmung am Lamellenende ein. Dem Vorsprung gegenüberliegend bildet das Endstück ein Federelement, welches den Vorsprung und die Lamellenausnehmung in formschlüssigem Eingriff hält und damit die feste Verbindung sichert. Die Dauerspannung in einem aus Kunststoff gefertigten Federelement führt zu Kriechvorgängen und einer raschen Materialalterung, wodurch sich die Verbindung zwischen der Lamelle und dem Endstück schon nach kurzer Zeit lockert. Da der Schlitz spielfrei über die Lamelle schiebbar sein muss ist zudem eine vollautomatische Montage erschwert.An end piece of this type is known from US Pat. No. 2,770,296. To attach it to a slat, there is a slot at the end into which the slat end is inserted and held in a force-locking manner. The projection on one side of the slot snaps into the corresponding recess at the end of the lamella. Opposite the protrusion, the end piece forms a spring element which holds the protrusion and the lamella recess in positive engagement and thus secures the firm connection. The permanent tension in a spring element made of plastic leads to creeping processes and rapid material aging, which loosens the connection between the lamella and the end piece after a short time. Since the slot must be able to be pushed over the lamella without play, fully automatic assembly is also made more difficult.

Die vorliegende Erfindung stellt sich die Aufgabe, ein Endstück der eingangs erwähnten Art derart zu verbessern, dass seine Dauerhaftigkeit und Festigkeit wesentlich erhöht und das Montieren erleichtert wird.The object of the present invention is to improve an end piece of the type mentioned at the outset in such a way that its durability and strength are substantially increased and assembly is made easier.

Erfindungsgemäss wird diese Aufgabe gelöst durch ein Verbindungsstück gemäss den kennzeichnenden Merkmalen des Patentanspruches 1.According to the invention, this object is achieved by a connecting piece according to the characterizing features of claim 1.

Das Endstück kann mit einfachen Vorrichtungen vollautomatisch mit den Lamellen verbunden werden. Die Zufuhr des anfänglich einstückig ausgebildeten Verbindungsteiles zur Montagemaschine ist einfach zu bewerkstelligen, und das Anbringen der Stanzung in der Lamelle kann in einem parallel zur Montage des Endstückes verlaufenden Stanzhub erfolgen.The end piece can be connected to the slats fully automatically using simple devices. The supply of the initially integrally formed connecting part to the assembly machine is easy to accomplish, and the punching in the lamella can be carried out in a punching stroke running parallel to the assembly of the end piece.

Anhand eines illustrierten Ausführungsbeispieles wird die Erfindung näher erläutert. Es zeigen:

  • Figur 1 einen Querschnitt längs Linie I-I in Fig. 2,
  • Figur 2 eine Draufsicht auf das Endstück gemäss Fig. 1 und
  • Figur 3 einen Querschnitt längs Linie 111-111 in Fig. 2.
The invention is explained in more detail with the aid of an illustrated embodiment. Show it:
  • FIG. 1 shows a cross section along line II in FIG. 2,
  • Figure 2 is a plan view of the end piece of FIG. 1 and
  • FIG. 3 shows a cross section along line 111-111 in FIG. 2.

In Fig. 1 ist mit Bezugszeichen 1 ein Endstück für eine Lamelle 3 (strichpunktiert sichtbar gemacht) dargestellt, bevor dieses mit der Lamelle 3 verbunden wird. Das Endstück 1 besteht aus einem länglichen Körper, dessen eines Ende 5 durch eine Ausnehmung 7 in einem untenliegenden Tragteil 9 und einem obenliegenden Rastteil 11 aufgespalten ist.In Fig. 1, an end piece for a slat 3 (shown in dash-dotted lines) is shown with reference numeral 1 before it is connected to the slat 3. The end piece 1 consists of an elongated body, one end 5 of which is split by a recess 7 in an underlying support part 9 and an upper locking part 11.

Der Tragteil 9 ist im wesentlichen starr mit einem Bolzen 13 verbunden, der in eine Führung 15 eingreift, welche die Lamellen 3 in der vertikalen Verschieberichtung führt. Die Führung 15 ist nur andeutungsweise dargestellt, da sie nicht Gegenstand dieser Erfindung ist und deren Ausgestaltung den jeweiligen Bedürfnissen entsprechend anpassbar ist.The support part 9 is essentially rigidly connected to a bolt 13 which engages in a guide 15 which guides the slats 3 in the vertical direction of displacement. The guide 15 is only shown in a hint, since it is not the subject of this invention and its design can be adapted to the respective needs.

Der Tragteil 9 besteht im wesentlichen aus einer die Lamelle 3 aufnehmenden Tragfläche 17, auf der ein die Lamelle 3 zentrierender Nocken 19 angebracht ist. Der Nocken 19 wird von einer Öffnung 21 durchdrungen, deren Querschnitt im unteren Bereich unter Bildung eines Absatzes 23 eine sprunghafte Erweiterung erfährt. Der Nocken 19 kann einen runden, länglichen (wie gezeigt) oder beliebigen anderen Querschnitt aufweisen.The supporting part 9 consists essentially of a supporting surface 17 receiving the lamella 3, on which a cam 19 centering the lamella 3 is attached. The cam 19 is penetrated by an opening 21, the cross section of which undergoes an abrupt widening in the lower region, forming a shoulder 23. The cam 19 may have a round, elongated (as shown) or any other cross section.

Der Rastteil 11 weist eine Anpressfläche 25 auf, die parallel zur Tragfläche 17 liegt und auf der ein vorzugsweise pilzförmiger Vorsprung 27 angebracht ist. Der Vorsprung 27 und die Öffnung im Nocken 19 weisen, wie bei Rastverbindungen bekannt, komplementäre Formen auf, wobei im eingerasteten Zustand der Abstand der Flächen 17 und 25 der Dicke einer Lamelle 3 entspricht.The latching part 11 has a pressing surface 25 which is parallel to the supporting surface 17 and on which a preferably mushroom-shaped projection 27 is attached. The projection 27 and the opening in the cam 19 have, as is known in the case of snap-in connections, complementary shapes, the distance between the surfaces 17 and 25 corresponding to the thickness of a lamella 3 in the engaged state.

Der Rastteil 11 ist über einen Sollbruchbereich 29 mit dem Tragteil 9 verbunden. In der gezeigten Ausführungsform ist der Sollbruchbereich 29 kreisförmig und verbindet einen zapfenartigen Fortsatz 31 am Rastteil 11 mit dem oberen Rand einer zum Fortsatz 31 kongruenten Bohrung 33 im Tragteil 9.The latching part 11 is connected to the supporting part 9 via a predetermined breaking area 29. In the embodiment shown, the predetermined breaking area 29 is circular and connects a peg-like extension 31 on the latching part 11 to the upper edge of a bore 33 in the supporting part 9 that is congruent with the extension 31.

Anstelle einer zylindrischen Bohrung 33 kann auch eine von anderer Querschnittsform treten, wenn analog der Querschnitt des Fortsatzes 31 entsprechend ausgebildet ist.Instead of a cylindrical bore 33, another cross-sectional shape can also occur if the cross-section of the extension 31 is designed accordingly.

Im Grundriss weisen der Rastteil 11 und der Tragteil 9 vorzugsweise die gleiche äussere Gestalt auf.In the plan, the locking part 11 and the support part 9 preferably have the same outer shape.

Im folgenden wird das Befestigen des Endstückes 1 an der Lamelle 3 kurz beschrieben.The attachment of the end piece 1 to the lamella 3 is briefly described below.

An die von Hand oder maschinell einer Montagemaschine (nicht dargestellt) zugeführten Lamellen 3 werden die Endstücke 1 axial auf die Lamellen 3 aufgeschoben und mit deren ausgestanzten Ausnehmung an der Nocke 19 zentriert. Nun ist die gegenseitige Lage der Lamelle 3 und des Endstückes 1 eindeutig festgelegt. Mit einer vertikal von oben auf den Rastteil 11 wirkenden Kraft F wird der Rastteil 11 nach unten gedrückt. Dabei bricht die Verbindung im Sollbruchbereich 29, und der Fortsatz 31 schiebt sich in die Bohrung 33. Parallel dazu durchdringt der Vorsprung 27 die Ausnehmung in der Lamelle 3 und die Offnung 21 im Tragteil 9. Der pilzartig ausgeweitete Rand des Vorsprunges 27 wird während des Durchgangs durch die Öffnung 21 hineingepresst und rastet anschliessend am Absatz 23 ein.The end pieces 1 are pushed axially onto the lamellae 3 by hand or by machine to an assembly machine (not shown) and centered with their punched-out recess on the cam 19. Now the mutual position of the lamella 3 and the end piece 1 is clearly defined. With a force F acting vertically from above on the locking part 11, the locking part 11 is pressed down. The connection breaks in the predetermined breaking area 29, and the extension 31 slides into the bore 33. In parallel, the projection 27 penetrates the recess in the lamella 3 and the opening 21 in the support part 9. The mushroom-like expanded edge of the projection 27 becomes during the passage pressed through the opening 21 and then engages in the shoulder 23.

Die geometrischen Abmessungen des Vorsprunges 27 und der Öffnung 21 sind so bemessen, dass nach dem Einrasten der beiden Teile die Lamelle 3 unverrückbar zwischen dem Tragteil 9 und dem Rastteil 7 eingeklemmt ist.The geometric dimensions of the projection 27 and the opening 21 are dimensioned such that, after the two parts have engaged, the lamella 3 is immovably clamped between the supporting part 9 and the latching part 7.

Die Toleranzen an der Befestigungsvorrichtung sowie das verwendete Material können so gewählt sein, dass eine Trennung des Rastteiles 11 vom Tragteil 9 nur mit Gewalt erfolgen kann und eine Zerstörung der Teile mit sich zieht.The tolerances on the fastening device and the material used can be selected such that the detent part 11 can only be separated from the supporting part 9 by force and the parts are destroyed.

Selbstverständlich könnte die Ausbildung des Rast- und des Tragteiles auch umgekehrt und damit die Bohrungen im Rast- und die Zapfen im Tragteil angeordnet werden.Of course, the design of the locking and the support part could also be reversed and thus the holes in the locking and the pin in the support part could be arranged.

Claims (7)

1. End piece (1) for the guiding of slats (3) of slat- ted blinds in the lateral guide rails (15), one end (5) being connectable securely to the slat (3) and having a projection (27) for engaging in a recess in the slat (3), and the other end of said end piece being constructed as a pin (13) insertable in the guide rail (15), characterised in that the end (5) which is connectable to the slat consists of a lower supporting portion (9) connected securely to the pin (13) and of an upper locking portion (11) held by a predetermined breaking region (29), said locking portion (11) being adapted to be inserted in the supporting portion (9), overcoming the resistance to breaking, and to be latchable in the latter portion.
2. Device according to claim 1, characterised in that between the supporting portion (9) and the locking portion (11) there is formed a recess (7) for the insertion of the end of the slat (3), this recess being bounded below by a supporting surface (17).
3. Device according to claim 2, characterised in that a protuberance (19) projecting above the supporting surface (17) is arranged on the said surface for the purpose of centring the slat (3).
4. Device according to claim 3, characterised in that there is provided in the protuberance (19) an aperture (21) which is widened in the lower portion by a shoulder element (23).
5. Device according to one of claims 1 to 4, characterised in that the mushroom-shaped projection (27), which is adapted to latch on to the shoulder element (23) and which matches the aperture (21), is arranged on the locking portion (11) concentrically above the aperture (21).
6. Device according to one of claims 1 to 5, characterised in that the predetermined breaking region (29) is connected by an extension (31) to the locking portion (11).
7. Device according to claim 6, characterised in that a hole (33) is arranged in the supporting portion (9) for accommodating the extension (31) in play- free manner.
EP88108854A 1987-07-23 1988-06-03 End piece for guiding lamellae Expired - Lifetime EP0300177B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88108854T ATE56246T1 (en) 1987-07-23 1988-06-03 END PIECE FOR GUIDING SLATS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2801/87 1987-07-23
CH2801/87A CH673677A5 (en) 1987-07-23 1987-07-23

Publications (2)

Publication Number Publication Date
EP0300177A1 EP0300177A1 (en) 1989-01-25
EP0300177B1 true EP0300177B1 (en) 1990-09-05

Family

ID=4241896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108854A Expired - Lifetime EP0300177B1 (en) 1987-07-23 1988-06-03 End piece for guiding lamellae

Country Status (4)

Country Link
EP (1) EP0300177B1 (en)
AT (1) ATE56246T1 (en)
CH (1) CH673677A5 (en)
DE (1) DE3860557D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59403909D1 (en) * 1993-03-17 1997-10-09 Griesser Ag Louvre blind
GB2343474B (en) * 1998-11-04 2002-11-13 Chun-Chia Shih An improvement in the structure of a sealer for a rolling door
EP1382791B1 (en) 2002-07-20 2008-04-02 Schenker Storen AG Guide pin for guiding slats of a venetian blind
EP2022928A1 (en) * 2007-08-01 2009-02-11 WAREMA Kunststofftechnik und Maschinenbau GmbH Lamella with lateral guide nipples
DE102008061591A1 (en) * 2008-12-11 2010-06-17 Warema Kunststofftechnik Und Maschinenbau Gmbh Slat for sun protection systems with slat curtain
EP2963224A1 (en) * 2014-07-02 2016-01-06 3M Innovative Properties Company Profile with a breakable fixation member

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770296A (en) * 1953-05-14 1956-11-13 Lorentzen Hardware Mfg Corp Slat end guide for venetian blinds
FR1604858A (en) * 1968-10-31 1972-04-17
IT1038966B (en) * 1975-06-12 1979-11-30 Itw Fastex Italia Spa SCREW IN PLASTIC MATERIAL WORKING AS AN DOWEL
DE3037733A1 (en) * 1980-10-06 1982-07-22 Emil Schenker AG, 5012 Schönenwerd REEL SLAT STORE
CH657183A5 (en) * 1982-08-27 1986-08-15 Griesser Ag REEL SLAT STORE.
EP0147732A3 (en) * 1984-01-03 1986-03-05 Hà–Rmann Kg Bielefeld End piece for roller door profiles

Also Published As

Publication number Publication date
CH673677A5 (en) 1990-03-30
ATE56246T1 (en) 1990-09-15
DE3860557D1 (en) 1990-10-11
EP0300177A1 (en) 1989-01-25

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