EP1312748B1 - Rolladenwelle aus Leichtmetall-Druckguss für ein rohrförmiges Untersetzungsgetriebe - Google Patents

Rolladenwelle aus Leichtmetall-Druckguss für ein rohrförmiges Untersetzungsgetriebe Download PDF

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Publication number
EP1312748B1
EP1312748B1 EP02425663A EP02425663A EP1312748B1 EP 1312748 B1 EP1312748 B1 EP 1312748B1 EP 02425663 A EP02425663 A EP 02425663A EP 02425663 A EP02425663 A EP 02425663A EP 1312748 B1 EP1312748 B1 EP 1312748B1
Authority
EP
European Patent Office
Prior art keywords
flange
shaft
housing
light alloy
steel
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
EP02425663A
Other languages
English (en)
French (fr)
Other versions
EP1312748A2 (de
EP1312748A3 (de
Inventor
Dante Postacchini
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.)
Gaposa SRL
Original Assignee
Gaposa SRL
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 Gaposa SRL filed Critical Gaposa SRL
Publication of EP1312748A2 publication Critical patent/EP1312748A2/de
Publication of EP1312748A3 publication Critical patent/EP1312748A3/de
Application granted granted Critical
Publication of EP1312748B1 publication Critical patent/EP1312748B1/de
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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
    • 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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
    • E06B2009/725—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller with epicyclic or planetary gear train

Definitions

  • the present patent application relates to a die-cast shaft made of light alloy, such as aluminium or zinc alloy, designed for use on tubular reduction gears for roller shutters and blinds.
  • roller shutters are externally fixed on a tubular shaft that is dragged into rotation by means of a multistage epicyclic reduction gear, whose shaft is coupled to one end of the shaft, usually with the interposition of ad adapter housed and engaged inside the tubular shaft.
  • the shaft normally ends with a circular flange with three, regularly spaced peripheral holes, in which the three support pins of the three planetary gears of the epicyclic reduction gear are inserted and fixed.
  • the transversal cross-section of the pin cannot be increased as desired because the diameter of the corresponding housing on the planetary gears-holding flange must be lower than the diameter of the circumference internally tangent to the three holes where the pins are inserted. Moreover, the diameter of the steel flange cannot be increased, since this would involve the new dimensioning of the entire epicyclic reduction gear, with a cost increase not balanced by the cost reduction derived from using die-cast light alloy instead of steel for the shaft.
  • the purpose of the present invention is to find a solution to the constructive difficulties illustrated above by realising a light alloy die-cast shaft capable of being mounted on epicyclic reduction gears of standard dimensions that are commonly used for roller shutters and blinds.
  • the coupling pin externally has a series of three regularly spaced teeth or radial lobes designed to be housed inside corresponding notches located on the edge of the housing.
  • the presence of the three teeth or radial lobes on the coupling pin represents the overdimensioning of the pin both as regards the size of its transversal cross-section and the extension of its lateral walls, with consequent reduction of the torsional stresses and surface pressures affecting the pin because of the torque transmitted to the shaft by the reduction gear.
  • the shaft (1) of the invention is designed to be coupled with a steel flange (2) that holds the planetary gears, of standard type and dimensions, which features a series of three regularly spaced holes (3) for the introduction of three steel pins (4) that support the planetary gears (5) that form part of a standard epicyclic reduction gear.
  • the shaft (1) has a coupling pin (6) that externally features a series of three regularly spaced teeth or radial lobes (6a) housed inside corresponding notches (7a) along the edge of the housing (7) located in the centre of the flange (2).
  • the notches (7) are regularly spaced with respect to the three holes (3) on the flange (2).
  • the coupling pin (6) is made of light alloy and die-cast from one single piece with the shaft (1).
  • the shaft (1) has a flange (8) with a housing (9) capable of housing the coupling pin (10) that projects from the steel flange (2) that holds the planetary gears in opposite position to the planetary gears (5).
  • the flange (8) is made with light alloy and die-cast from a single piece with the shaft (1), while the pin (10) is made of steel, like the flange (2) and the pins (4) that support the planetary gears (5).
  • the steel pin (10) externally features a series of three regularly spaced teeth or radial lobes (10a) housed inside corresponding notches (9a) along the edge of the housing (9) located in the centre of the flange (8).

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Retarders (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Claims (3)

  1. Kraftabnahmewelle, die dazu bestimmt ist, auf rohrförmigen Epizykloid-Untersetzungsmotoren mit Standardabmessungen für die Betätigung von Rollläden und aufrollbaren Sonnenmarkisen verwendet zu werden, ist mit einer Zapfwelle (6, 10) versehen, die in einen entsprechenden, formschlüssigen Sitz (7, 9) einzustecken ist, welcher dazu dient, das Drehmoment des Flansches (2) des Umlaufradhalters auf die Kraftabnahmewelle (1) zu übertragen, welche dadurch gekennzeichnet ist, dass sie aus einer Leichtmetalllegierung druckgegossen ist und dass die Zapfwelle (6, 10) auf der Außenseite eine Dreiergruppe von radial angeordneten Zähnen oder Vorsprüngen (6a, 10a) mit regelmäßigem Abstand voneinander besitzt, welche von entsprechenden, formschlüssigen Einkerbungen (7a, 9a) aufgenommen werden, welche an der Kante des entsprechenden Sitzes (7, 9) herausgearbeitet sind, wobei diese radial angeordneten Zähne oder Vorsprünge (6a oder 10a) sich über die gedachte Umfangslinie hinaus erstrecken, welche die drei Löcher (3) an der Innenseite berührt, welche üblicherweise auf dem Flansch (2) zur Aufnahme der Stahlwellen (4) zur Halterung der Umlaufrädgetriebe (5) des fpizykloid-Untersetzunggetriebes vorhanden sind, dessen Bestandteil der Flansch (2) ist.
  2. Kraftabnahmewelle gemäß dem vorstehenden Anspruch, dadurch gekennzeichnet, dass sie aus einer Leichtmetalllegierung zusammen mit der Zapfwelle (6) durchgegossen wird, welche auf der Außenseite eine Dreiergruppe von radial angeordneten Zähnen oder Vorsprüngen (6a) mit regelmäßigem Abstand voneinander besitzt, welche von entsprechenden, formschlüssigen Einkerbungen (7a) aufgenommen werden, welche an der Kante des Sitzes (7) herausgearbeitet sind, der im Zentrum des Flansches (2) vorgesehen ist.
  3. Kraftabnahmewelle gemäß Anspruch 1, dadurch gekennzeichnet, dass sie einen Flansch (8) besitzt, der einstückig zusammen mit der Kraftabnahmewelle aus einer Leichtmetalllegierung durchgegossen ist und einen Sitz (9) besitzt, der dazu bestimmt ist, die Zapfwelle (10) aufzunehmen, die aus Stahl hergestellt ist und aus dem Umlaufradhalterflansch (2) auf der Seite hervorsteht, die dem Umlaufradgetriebe (5) gegenüberliegt, wobei der Stahlstift (10) auf der Außenseite eine Dreiergruppe von radial angeordneten Zähnen oder Vorsprüngen (10a) mit regelmäßigem Abstand voneinander besitzt, welche von entsprechenden, formschlüssigen Einkerbungen (9a) aufgenommen werden, welche an der Kante des Sitzes (9) herausgearbeitet sind, der im Zentrum des Flansches (8) vorgesehen ist.
EP02425663A 2001-11-20 2002-10-30 Rolladenwelle aus Leichtmetall-Druckguss für ein rohrförmiges Untersetzungsgetriebe Expired - Lifetime EP1312748B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMC20010113 2001-11-20
IT2001MC000113A ITMC20010113A1 (it) 2001-11-20 2001-11-20 Albero di forza pressofuso in lega leggera per motoriduttori tubolariper la movimentazione di tapparelle e tende da sole avvolgibili.

Publications (3)

Publication Number Publication Date
EP1312748A2 EP1312748A2 (de) 2003-05-21
EP1312748A3 EP1312748A3 (de) 2003-06-18
EP1312748B1 true EP1312748B1 (de) 2005-03-16

Family

ID=11443476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425663A Expired - Lifetime EP1312748B1 (de) 2001-11-20 2002-10-30 Rolladenwelle aus Leichtmetall-Druckguss für ein rohrförmiges Untersetzungsgetriebe

Country Status (4)

Country Link
EP (1) EP1312748B1 (de)
AT (1) ATE291147T1 (de)
DE (1) DE60203239T2 (de)
IT (1) ITMC20010113A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMC20050133A1 (it) * 2005-12-13 2007-06-14 Gaposa Srl Riduttore epicicloidale a piu' stadi modulari per motoriduttori tubolari di azionamento di avvolgibili, tende a rullo e simili.
EP2196601A1 (de) * 2008-12-12 2010-06-16 Unicum Transmission de Puissance Befestigungsvorrichtung für einen Tauchmotor in einem Schwimmbecken zum Antrieb von Rollos
US10337243B2 (en) 2017-04-10 2019-07-02 Mechoshade Systems, Llc Geared bracket for a window shade

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207909C2 (de) * 1982-03-05 1992-04-16 Standard Elektrik Lorenz Ag, 7000 Stuttgart Vorrichtung zum Koppeln eines Antriebsmotors mit einer Antriebswelle eines Gerätes
DE3536160A1 (de) * 1985-10-10 1987-04-23 Starcke Zuendwarenfab Seitenzugrollo
WO1998009045A1 (de) * 1996-08-28 1998-03-05 De Groot, Willem Elektrischer fensterstorenantrieb
DE19953200A1 (de) * 1999-11-05 2001-05-10 Valeo Auto Electric Gmbh Rohrmotor
DE29921077U1 (de) * 1999-12-01 2001-04-12 Roma Rolladensysteme GmbH, 89331 Burgau Vorrichtung zum Verschluss von Gebäudeöffnungen

Also Published As

Publication number Publication date
DE60203239T2 (de) 2006-02-09
ITMC20010113A1 (it) 2003-05-20
DE60203239D1 (de) 2005-04-21
EP1312748A2 (de) 2003-05-21
EP1312748A3 (de) 2003-06-18
ATE291147T1 (de) 2005-04-15

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