EP1839540A2 - Engrenage destiné au levage et à l'abaissement d'un rideau - Google Patents

Engrenage destiné au levage et à l'abaissement d'un rideau Download PDF

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Publication number
EP1839540A2
EP1839540A2 EP20070005741 EP07005741A EP1839540A2 EP 1839540 A2 EP1839540 A2 EP 1839540A2 EP 20070005741 EP20070005741 EP 20070005741 EP 07005741 A EP07005741 A EP 07005741A EP 1839540 A2 EP1839540 A2 EP 1839540A2
Authority
EP
European Patent Office
Prior art keywords
winding shaft
housing
curtain
transmission according
drive wheel
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.)
Withdrawn
Application number
EP20070005741
Other languages
German (de)
English (en)
Inventor
Hartmut Peplies
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.)
Marion Peplies E K Dekoprofiltechnik
Original Assignee
Marion Peplies E K Dekoprofiltechnik
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 Marion Peplies E K Dekoprofiltechnik filed Critical Marion Peplies E K Dekoprofiltechnik
Publication of EP1839540A2 publication Critical patent/EP1839540A2/fr
Withdrawn legal-status Critical Current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
    • E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
    • 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
    • E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
    • E06B2009/2622—Gathered vertically; Roman, Austrian or festoon blinds

Definitions

  • the invention relates to a transmission for lifting and lowering a curtain track.
  • a gear can be used in Roman blinds, folding curtains and other curtains, in which the lifting and lowering of the curtain web is achieved by winding drawstrings on a winding shaft.
  • the curtain track is set with an upper peripheral edge releasably attached to a mounting profile.
  • This curtain track shows a substantially smooth, vertical surface at full subsidence.
  • the curtain web is folded up and arranged in the area of the winding shaft.
  • the lifting or lowering of the curtain track is made by means of a ball chain, which drives a transmission of the winding shaft.
  • the winding shaft is rotatably mounted end in bearing elements. These bearing elements are in turn connected to the mounting profile.
  • the bearing comprises a gear with a sprocket which is driven by the ball chain.
  • the sprocket has a molded stub axle which has a radial recess.
  • a spring-like brake element is provided on the pin which supports the sprocket, several windings of a spring being arranged around the pin.
  • the ends of this spring are bent and engage in the recess of the stub axle.
  • Object of the present invention is therefore to provide a transmission for raising and lowering a curtain track available, which is equipped with a braking element, which manages with a comparatively low spring force.
  • the transmission according to the invention is driven by a drive wheel, for example a sprocket, manually or else, if necessary, by means of a motor.
  • the movement of the drive wheel is transmitted via a coupling to the winding shaft.
  • the winding shaft engages in a bore of the coupling member, that is, the coupling member engages around the winding shaft. Since the winding shaft passes through the coupling member, the winding shaft can project beyond the curtain track left and right and be provided at these ends with decorative caps or decorative elements.
  • the coupling between the winding shaft and the Coupling member is carried out in a similar manner as in known transmissions, for example via a latching connection, for which the coupling member has on its cylindrical inner surface in the longitudinal direction of the winding shaft extending locking lugs, which engage in corresponding recesses, for example, an existing on the winding shaft extending in the longitudinal direction groove.
  • locking lugs can act as stops for the web bar and the chord surface.
  • the cylindrical coupling element is mounted end in a housing.
  • this housing has symmetrical to the central axis of the winding shaft provided holes in which the coupling element is rotatably mounted when a brake element prevents rotation.
  • This braking element cooperates with a cam arranged on the lateral surface.
  • a spring-like brake element is also provided in the transmission according to the invention, which is placed in relatively large turns and is arranged in a cylindrical receptacle of the housing.
  • This cylindrical housing of the housing has a larger diameter than the circumferential circle described by the cam of the coupling element.
  • the ends of the spring-like brake element are bent inwards. In the space between these bent ends of the cam of the coupling element is added.
  • the drive wheel of the transmission is also housed in the housing. It has an inner bore with a diameter which is matched to the diameter of the lateral surface of the coupling element, so that the drive wheel can receive the coupling element in itself.
  • the drive wheel is provided with a part-ring-shaped extension extending in the axial direction. The ends of the partial ring define a radial recess in which the cam and the two bent ends of the spring-like brake element are received.
  • the particular advantage of the transmission according to the invention lies in the fact that with comparably large curtain tracks a brake element is sufficient, which has only one third of the tensile force in comparison to the known brake element.
  • this transmission has significant mounting advantages, since the housing can be easily pre-assembled on the mounting profile and then the winding shaft can be passed through the intended bore of the coupling element.
  • the housing consists of two housing shells.
  • a housing shell has the receptacle for the brake element and a symmetrically aligned to the central axis of the winding shaft bore for the storage of one end portion of the coupling element.
  • the other housing shell also has a symmetrical to the central axis of the winding shaft aligned bore for the storage of the second end portion of the coupling element.
  • These two bores on the housing shells can have different diameters if end sections with different outer diameters are provided on the coupling element. This has the advantage that the coupling element can be arranged only in one orientation in the housing, whereby incorrect assembly is prevented.
  • the sprocket In the area of the second housing shell is the sprocket. For the entrance and exit of the ball chain, a corresponding opening is provided on the housing shell.
  • the housing shells can be connected to one another via a screw connection.
  • a groove open in the direction of the fastening profile is provided above the winding shaft in the region of the fastening profile on the housing, into which groove a T-shaped connecting element engages.
  • the T-connector in turn engages with its legs an undercut groove of the mounting profile.
  • screws can be screwed through the upper housing part to the T-shaped connecting element.
  • Such a gearbox can be used for lifting and lowering a curtain track of a roman blind, a blind or a folding curtain.
  • Particularly preferred is the use of the transmission in a Roman shade, which is releasably fixed with its upper edge on the mounting profile.
  • the winding shaft is inserted at its one end in the transmission, i. in the cylindrical coupling element. At the other end, the winding shaft is in a comparable housing, which is equipped with only one of the shape of the coupling element similar bearing ring. This bearing ring has no cam.
  • the gear can be set in motion and a number of pull cords on the winding shaft or be wound up. This causes a lifting or lowering of the curtain track.
  • the curtain web can be held in any coiled or unwound position.
  • hollow shafts can be used as a winding shaft. Both winding shafts with a arranged on the outer circumference, extending in the longitudinal direction of the winding shaft groove, as well as winding shafts with a projecting web emanates from a chord surface of the winding shaft.
  • extending in the bearing ring and the coupling element in the longitudinal direction of the winding shaft locking lugs may be provided, which engage in the groove or serve as stops for the web bar and the chord surface.
  • the Roman shade 1 illustrated in FIG. 1 comprises a curtain web 2, which can be seen from its rear side.
  • This curtain track 2 is, as can be seen from FIGS. 2 and 3, fixed with its upper edge 6 on a mounting profile 3.
  • a Velcro strip arranged in the fastening profile 3 and a loop tape fixed in the upper edge 6 of the curtain web 2 are provided.
  • This Velcro connection allows, if necessary, a simple and easy separation of the curtain track 2 of the horizontal mounting profile 3, especially when the Roman shade 1 is to be cleaned.
  • On the back of the curtain track 2 run a number of pull cords 4. These pull cords 4 are fixed at the lower edge 9 of the curtain track 2 with their lower ends, by means of the mounting ring 8. Starting from the respective lower end, the pull cords run vertically along the curtain track 2, where they are guided by guide loops 7 until they reach the winding shaft 10, where they are fixed by means of a clamp 20.
  • the winding shaft 10 is preferably an extruded hollow profile.
  • the winding shaft 10 is provided with a projecting web bar 14 on which the brackets 20 can be fixed.
  • This web bar 14 is formed off-center on a chord surface 13 of the winding shaft 10. This web bar 14 does not protrude beyond the circumferential circle of the winding shaft 10.
  • This bearing housing 30 consists of two shells 31, 32, each with a aligned to the central axis of the winding shaft 10 bore 38.
  • a bearing ring 32 is arranged, which is rotatably mounted end 31 and 32 in the bores 38 of the housing shell.
  • the diameter of the bore 38 of the housing shell 31 and the diameter of the bore 38 of the housing shell 32 may be the same size, but also different.
  • a bearing ring 33 is used, which is shown in its side view in Fig. 4. This bearing ring has a same inner diameter throughout, but partial rings 332, 333, 334, 335 with different outer diameter.
  • the largest outer diameter d3 shows the lateral surface 333, whereas, on the other hand, the end-side partial rings 332 and 335 each have a smaller outer diameter, namely d2 and d1. In this way, introduced into the bore 38 bearing ring 33 can not slip within the housing 30.
  • the bearing housing 30 is fixed to the mounting profile 3.
  • a groove 35 pointing in the direction of the fastening profile 3 is provided on the head of the bearing housing 30.
  • This groove 35 serves to receive a sliding block of a T-shaped connector 36, on the other hand engages behind with its legs a groove in the mounting profile 3 (see Fig. 2), by fastening means 37, preferably screws, each through the head of a housing shell 31 and 32nd reach into the connector 36.
  • fastening means 37 preferably screws
  • a comparable bearing housing 40 is provided on the left side of the winding shaft 10, which is part of the transmission according to the invention.
  • the bearing housing 40 is also constructed of two shells 41, 42 and is in the same way on the mounting profile 3 via a connecting means 46 which engages in a groove 45 on the head of the housing 40 and fixed by means of fastening screws 47 on the mounting profile 3.
  • a ring similar to the bearing ring 33 is used in the housing 40 as a coupling element 43.
  • This coupling element 43 is shown in a side view in Fig. 5b.
  • the coupling element 43 has a consistently same inner diameter, which corresponds to the inner diameter of the bearing ring 33.
  • the coupling element 43 is end mounted in openings 48 of the housing shells 41, 42, wherein the outer diameter d1 of the end part ring 435 with the Diameter of the bore 48 of the housing half 42 coincides and the outer diameter d2 of the end part ring 432 with the diameter of the bore 48 of the housing half 41.
  • Fig. 1 the outer diameter d1 of the end part ring 435 with the Diameter of the bore 48 of the housing half 42 coincides and the outer diameter d2 of the end part ring 432 with the diameter of the bore 48 of the housing half 41.
  • the outer diameter d1 and d2 of the end-side partial rings 435, 432 selected differently, as well the diameter D1 and D2 of the holes 48 of the housing halves 41 and 42. This ensures that during assembly of the transmission, the coupling element 43 is arranged in the correct orientation in the housing 40.
  • the outer diameter d3 of the lateral surface 433 of the coupling element 43 is selected to be greater than the outer diameter D1, D2 of the end-side partial rings 432, 435 in order to prevent slippage of the coupling element within the housing 40.
  • the coupling element 43 has a cam 431 integrally formed on the lateral surface 433. As best seen in FIG. 6, the cam 431 engages in a space between the inwardly bent ends 61, 62 of the brake element 60.
  • This brake element 60 is in a cylindrical receptacle 413 of the housing half 41 added.
  • the brake element 60 is made of a metal wire having annular turns, which cooperate with the wall of the housing half 41. If the inwardly bent ends 61, 62 are spread apart, the brake element 60 is pressed into the receptacle 413. On the other hand, when the ends 61, 62 are brought together, this leads to the fact that the diameter of the brake element 60 is reduced and the brake element 60 is pulled out of the receptacle 413.
  • the drive wheel 50 is shown in FIG. 5c. It consists of a sprocket 51 on which a plurality of recesses for the balls of the ball chain 5 are arranged at a distance from each other. Adjacent to the sprocket is an annular wall which prevents slipping out of the ball chain 5. This wall is part of the ring 52. Opposite the sprocket 51 adjacent to the ring 52 is in the axial direction a partially annular projection 53, with a radial recess 56 which is bounded by the stop surfaces 54 and 55, is provided.
  • the curtain 1 shown in Fig. 1 has a width of 1.60 m.
  • a braking element 60 was used with a spring force of 700g.
  • This low spring force can be overcome without noticeable resistance when operating the curtain, which is perceived as pleasant by the user.
  • the new Raffvorhang 1 offers many new design possibilities.
  • the ends of the winding shaft 10 can be easily closed by end caps 11, 12, but also winding shafts 10 are used, the end substantially protrude from the bearing housings 30, 40. Decorative elements can be arranged on these protruding ends.
  • the winding shaft 10 itself can be designed in a desired design (color, shape) and it is also possible to include the bearing housing and the transmission in this particular design.
  • the bearing housing 30, 40 is made in the present example of transparent plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP20070005741 2006-03-28 2007-03-21 Engrenage destiné au levage et à l'abaissement d'un rideau Withdrawn EP1839540A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200620004867 DE202006004867U1 (de) 2006-03-28 2006-03-28 Getriebe zum Heben und Senken einer Vorhangbahn

Publications (1)

Publication Number Publication Date
EP1839540A2 true EP1839540A2 (fr) 2007-10-03

Family

ID=36591196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070005741 Withdrawn EP1839540A2 (fr) 2006-03-28 2007-03-21 Engrenage destiné au levage et à l'abaissement d'un rideau

Country Status (2)

Country Link
EP (1) EP1839540A2 (fr)
DE (1) DE202006004867U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011050666A1 (de) 2011-05-27 2012-11-29 Achim Lienert Aufwickelanordnung
CN113041592A (zh) * 2021-04-20 2021-06-29 湖南第一师范学院 一种教学用半开放连体式网球

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG184514A1 (en) * 2010-04-12 2012-11-29 Tachikawa Blind Mfg Operation apparatus of sunlight shielding apparatus, lifting apparatus of roll-up blind and operation pulley
CN103597159B (zh) * 2011-05-26 2015-08-05 立川窗饰工业株式会社 日射遮蔽装置的操作装置和日射遮蔽装置的绳支撑部

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011050666A1 (de) 2011-05-27 2012-11-29 Achim Lienert Aufwickelanordnung
DE102011050666B4 (de) * 2011-05-27 2014-06-12 Achim Lienert Aufwickelvorrichtung
CN113041592A (zh) * 2021-04-20 2021-06-29 湖南第一师范学院 一种教学用半开放连体式网球

Also Published As

Publication number Publication date
DE202006004867U1 (de) 2006-06-01

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