DE337148C - Blind-like cover for lighting devices, especially for headlights - Google Patents
Blind-like cover for lighting devices, especially for headlightsInfo
- Publication number
- DE337148C DE337148C DENDAT337148D DE337148DD DE337148C DE 337148 C DE337148 C DE 337148C DE NDAT337148 D DENDAT337148 D DE NDAT337148D DE 337148D D DE337148D D DE 337148DD DE 337148 C DE337148 C DE 337148C
- Authority
- DE
- Germany
- Prior art keywords
- blind
- headlights
- cover
- lighting devices
- strips
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1438—Actuating means for dimming masks or screens
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Blinds (AREA)
Description
Jalousieartige Blende für Beleuchtungsvorrichtungen, insbesondere für Scheinwerfer. Die vorliegende Erfindung betrifft eine neue julousieartige Verschlußblende für Scheinwerfer, welche in geöffnetem Zustande dein Lichtstrahl freiem Austritt gestattet, wie es bei den jetzt gebräuchlichen Irsäblenden der Fall ist, diesen gegenüber jedoch den Vorzug einfacherer und leichterer Bauart hat.Venetian blinds for lighting devices, in particular for headlights. The present invention relates to a new julousia-like shutter for headlights which, when open, emit their light beam freely allows, as it is the case with the irsabers now in use, these however, has the advantage of a simpler and lighter construction.
Das Wesen der Erfindung besteht darin, daß die zueinander parallel angeordneten Blendenstreifen beim Öffnen der Blende sich unter Erhaltung der zueinander parallelen Lage hintereinanderschveben, und daß die Zugorgane für die Blendenstreifen durch dem Zug entgegengerichtete Federspannung ständig straff gehalten werden, um eine genaue Führung der Bleche zu bewirken.The essence of the invention is that the parallel to each other arranged aperture strips when opening the aperture while maintaining the one another parallel position one behind the other, and that the pulling elements for the diaphragm strips be kept taut by the train in the opposite direction to bring about a precise guidance of the sheets.
Die Fig. 1 und 2 zeigen ein Ausführungsbeispiel, Fig.3 und 4 Einzelheiten. Die Blende ist geschlossen gezeichnet.FIGS. 1 and 2 show an embodiment, FIGS. 3 and 4 details. The aperture is drawn closed.
In dem Gehäuse 1 sind die Blenden eingehängt. Das oberste Blendenblech 2 wird in zwei am Gehäuse fest angeordneten Bändern oder Stäben 3, das nächste Blech 4 in den Bändern 5 geführt, welche an der Blende 2 befestigt sind, usw. Die Bleche hängen im geschlossenen Zustande hakenförmig ineinander.The panels are suspended in the housing 1. The top panel 2 is in two strips or rods firmly arranged on the housing 3, the next sheet 4 guided in the bands 5, which are attached to the panel 2, etc. The sheets hang in a hook-shaped manner in the closed state.
Für den untersten Blechstreifen ist eine Führungsleiste 6 angeordnet. Auf d'erWelle 7, welche durch eine Handkurbel 8 gedreht werden kann, sind zwei Seilrollen 9 fest angeordnet. Das eine Ende der beidem Zugseile 1o ist an den Rollen 9, das andere Ende an dem untersten Blech 1 i befestigt. An diesem Blech sind, ferner die beiden Spannseile 12 festgemacht, welche über die Laufrollen 13 und 14 auf die Rolle 15 auflaufen und an dieser befestigt sind. Diese Rolle, welche für die beiden Spannseile 12 doppelseitig ausgeführt ist, ist auf der Welle 7,drehbar und mit dieser durch eine Feder 16 verbunden.A guide bar 6 is arranged for the lowermost sheet metal strip. On d'erWelle 7, which can be turned by a hand crank 8, there are two pulleys 9 fixed. One end of the two pull cables 1o is on the rollers 9, the other end attached to the lowermost sheet 1 i. On this sheet are also the two tension ropes 12 fixed, which over the rollers 13 and 14 on the role 15 run up and are attached to this. This role, which one for the two tension ropes 12 is designed on both sides, is on the shaft 7, rotatable and with this through a spring 16 connected.
Beim Drehen der Welle 7 werden die Rollen 9 und 15 gemäß Pfeilrichtung in Fig. 3 und 4 in gleicher Richtung gedreht, wobei die Feder 16 die Rolle 15 in der gestrichelten Pfeilrichtung zu drehen bestrebt ist. Durch diese Federspannung werden die Seile 12 gespannt, das unterste Blech: 11 nach unten ge- zogen,. hierdurch die Seile 1o ebenfalls gestrafft und in diesem gespannten Zustand in jeder Blendenstellung erhalten. Durch diese gespannten Seile wird eine genaue Führung der Bleche bewirkt und ein Hängenbleiben der Bleche vermieden.When the shaft 7 is rotated, the rollers 9 and 15 are rotated in the same direction according to the direction of the arrow in FIGS. 3 and 4, the spring 16 tending to rotate the roller 15 in the direction of the arrow shown in dashed lines. By this spring tension the ropes are tensioned 12, the lowermost sheet 11 subjected to overall below ,. as a result, the ropes 1o are also tightened and maintained in this tensioned state in every aperture position. These tensioned ropes ensure precise guidance of the sheets and prevent the sheets from getting stuck.
Jalousieartige Verschlußvorrichtungen, welche aus zu einander parallelen und unter Erhaltung dieser gegenseitigenLage hintereinander verschiebbaren Streifen bestehen, sind bereits bekannt, und zwar als feuersichere Vorhänge.Blind-like closure devices, which are made of parallel to each other and strips which can be displaced one behind the other while maintaining this mutual position exist are already known, namely as fireproof curtains.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE337148T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE337148C true DE337148C (en) | 1921-05-27 |
Family
ID=6221142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT337148D Expired DE337148C (en) | Blind-like cover for lighting devices, especially for headlights |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE337148C (en) |
-
0
- DE DENDAT337148D patent/DE337148C/en not_active Expired
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