WO1997012104A1 - Awning drive - Google Patents
Awning drive Download PDFInfo
- Publication number
- WO1997012104A1 WO1997012104A1 PCT/EP1996/000912 EP9600912W WO9712104A1 WO 1997012104 A1 WO1997012104 A1 WO 1997012104A1 EP 9600912 W EP9600912 W EP 9600912W WO 9712104 A1 WO9712104 A1 WO 9712104A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission according
- gear
- winding tube
- freewheel
- freewheel device
- Prior art date
Links
- 239000004744 fabric Substances 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000001141 propulsive effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010043268 Tension Diseases 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
- E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
- E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
- E04F10/0644—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind
- E04F10/0648—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with mechanisms for unrolling or balancing the blind acting on the roller tube
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
- E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
- E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
- E04F10/0611—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind
- E04F10/0618—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind whereby the pivot axis of the articulation is perpendicular to 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
- E06B9/76—Operating devices or mechanisms, e.g. with electric drive using crank handles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
- E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
- E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
- E04F10/0666—Accessories
- E04F10/0674—Accessories acting as separate supporting bar
Definitions
- the invention relates to a transmission for awnings according to the preamble of claim 1.
- Such a transmission is known for example from DE-C 1-4014962.
- the braking device is formed there by at least one brake spring in the form of a helical spring which is arranged between the driven gearwheel and a piece which is fixedly connected to the transmission housing and which is held with an angled end in a groove which is fixedly connected to this gearwheel Hub is located, this gearwheel carries the winding tube.
- This braking device prevents the awning fabric from unintentionally and unintentionally unwinding and at the same time vibrates the winding tube during certain working positions of the extension arms.
- a disadvantage of this known transmission is that when the transmission is operated further in the unwinding direction, in the case in which the unwinding set position of the awning fabric has already been reached, further awning fabric material is unwound, so that the awning fabric no longer is taut and the wind can inflate and tear the awning cover like a balloon.
- the object of the invention is therefore to provide a transmission of the type mentioned, with which the further unwinding n of awning fabric is prevented after reaching the maximum extended position of the extension arms.
- the invention is achieved in any case when the awning fabric is wound up and unwound by means of a device which essentially consists of a gear, a freewheel or overrunning clutch with a driving effect and a braking device which are so coordinated with one another that when unrolling the awning cover, the extension arms can be operated with minimal force from the user, up to their stop. If the crank rod is actuated further, no torque from the transmission is exerted on the winding tube. This results from the fact that the spring force of the extension arms no longer exerts any force on the awning fabric, while at the same time the braking force of the braking device is greater than the driving force of the freewheel which acts between the gear and the freewheel. When unwinding, a rotational force acts on the winding tube from the freewheel, which is preferably minimally greater than the difference between the force of the drop arms and the braking device.
- a simple embodiment of the invention provides that the freewheel device is formed on the one hand by a number of recesses which are evenly distributed on an arc on the side opposite the drive side of the driven gear near the gear circumference and arranged to form at least one radial edge, and on the other hand, is formed by at least one spring-loaded pawl, which can be moved axially parallel in a chamber of an adapter non-rotatably connected to the winding tube and engages in the recesses.
- the freewheel device can be produced inexpensively if, according to a further embodiment of the invention, the adapter is a plastic injection-molded part and if the pawl, which is also made of plastic, is provided with a flexible tab which is molded onto the bottom of the chamber near the axis.
- the freewheel of the freewheel device starts when the spreading movement of the legs of the extension arms in the unwinding desired position of the awning fabric is limited by stops of these legs, these legs forming an obtuse angle. Since these legs form an obtuse angle at the beginning of the winding process, the winding force, the force acting on the pawls of the freewheel device is much lower than in the case in which these legs would be stretched.
- the freewheel can establish the connection between the winding tube and the transmission. On the other hand, however, it can also be connected to part of the crank rod or between the transmission and the crank rod.
- FIG. 3 shows a rear view of an adapter, which is connected to the winding tube in a non-rotatable manner, with a part of the freewheel device,
- FIG. 4 shows a side view of the arrangement in FIG. 3 with a cut part of the freewheel device
- FIG. 5 is a plan view of the front side A-A of the arrangement in FIG. 3,
- Fig. 6 is a radial section along the line C-C in Fig. 3 at the point
- Fig. 8 is a side view and a partial section of the gear in Fig. 7 along the line B-B and
- Fig. 9 is a side view and a partial section of a counter bearing of
- Winding tube with a braking device Winding tube with a braking device.
- the awning shown in FIG. 1 has a support device to be fastened to the house wall or the like, which is provided with an angle tube 34 rotatably mounted in bearing plates 30, 30 '(FIGS. 1 and 9).
- the angled tube 34 can be moved by means of a gear 32, specifically via a crank rod 26 which can be hooked in or out and which can be hooked into an actuating eyelet 28.
- Two extension arms are fastened to a support tube 24 arranged between the bearing plates 30, only one of which, the extension arm 16, is shown.
- the drop arm 16 consists of two legs 18, 20 articulated to one another by means of a joint 22, of which the leg 18 is rotatably fastened to a part 36 connected to the supporting shaft by means of a joint 38 and the leg 20 is rotatably fastened to a drop tube 10 which tensiones the awning fabric 14 by means of a joint 22 ' .
- the downpipe 10 can also wear a valance 12.
- the joints 22, 22 ', 38 ensure that the extension arm 16 collapses in one plane.
- the legs 18, 20 are designed as tubes. In the interior of the tubular leg 20, a tension spring is arranged in a manner not shown, which is fastened on the one hand to the joint 22 'and on the other hand to the joint 38 via a rope (not shown) running through the tubular leg 18.
- This tension spring is always so tensioned that it acts in the sense of unfolding the legs 18, 20.
- the actuating eyelet 28 is rotated by means of the crank rod 26, the downpipe 10 moves in the direction of the double arrow 13.
- the part 36 can be designed as an inclination adjustment device, when the downpipe 10 is actuated in the direction of the double arrow 15.
- the gear 32 is shown in more detail in FIG. 2. It consists of a housing 40 with two gear wheels 43, 44, which form a bevel gear pair. The axes of rotation of the gears are arranged at right angles to one another, and the teeth 42, 49 of the gears mesh with one another.
- the toothed wheel 44 is rotatably mounted on a cylindrical section 45 of the housing 40.
- a shaft 39 of the gear 43 is rotatably supported by its end 66 in the housing 40.
- a cylinder tube 46 is arranged centrally and non-rotatably connected to the housing 40.
- This cylinder tube 46 serves as a bearing for a hub-shaped part 37 of the gearwheel 44.
- An adapter 48 is in turn rotatably mounted on this part 37, which has the shape of a cylindrical drum open on one side, on which the winding tube 34 is fastened non-rotatably.
- Adapter 48 and part 37 of gear 44 are secured on cylinder tube 46 by means of a securing element 51 against horizontal displacement.
- FIG. 3 represents a plan view of the open side of the drum.
- a rib, not shown, inside the angle tube 34 engages in a longitudinal groove 52 on the outer circumference of the adapter 48, so that this adapter can be rotated together with the winding tube 34 on the part 37.
- the adapter 48 is a plastic injection molded part and has a honeycomb-shaped and therefore stable structure for reasons of material savings.
- This freewheel device is shown in more detail in FIGS. 3 to 8, the part of the freewheel device relating to the adapter 48 being shown in FIGS. 3 to 6 and the part of the freewheel device relating to the gear 44 being shown in FIGS. 7 and 8.
- the pawl 54 has a nose 60, which normally protrudes from the end face of the adapter 48, and an inclined surface 61 extending in the peripheral direction of the adapter 48 (FIG. 4).
- the other two pawls 58, 59 are designed accordingly. This structure of the pawl 54 is also apparent from the sectional view in FIG. 6.
- the side of the gearwheel 34 opposite the end face of the adapter 48 is provided with six recesses, which are evenly distributed on a circular arc in the vicinity of the gearwheel circumference, the recess 55 being selected by way of example for closer inspection.
- the recess 55 is delimited by an upper, arcuate edge 64 lying in the vicinity of the gear wheel periphery, a lower, arcuate edge 65 and two lateral, radially running edges 66, 67.
- the bottom surface of the recess 55 runs parallel to the radial outside of the gear 44. However, it can also rise from the edge 66 to the edge 67.
- the recess 55 is dimensioned so that the pawl 54 can be received in it, the nose 60 can strike the edge 66.
- a braking device provided for the winding tube 34 will be described, which is located on the other end of the winding tube, which is opposite to the end of the winding tube shown in FIG. 2, and which is shown in FIG. 9.
- FIG. 9 is shown on a smaller scale than FIG. 2.
- the counter bearing of the winding tube 34 consists of a stiffened pot 70 which is rotatably mounted on a pin 72 with a central opening 71.
- axially parallel ribs 73 are evenly distributed, which engage in matching, axially parallel grooves 74 on the inner circumference of the winding tube 34, so that the pot 70 is non-rotatably connected to the winding tube 34.
- the pin 72 is fixed non-rotatably in a hole in the bearing plate 30 '.
- the bearing plate 30 has a slot, not shown, which runs vertically above the pin 72 and which can be narrowed by means of a screw 75, so that the pin 72 can be clamped in place.
- a brake spring 76 is arranged in the form of an approximately two-start helical spring which nestles tightly against the pin 72 and which is fixed with a right-angled end 77 in a radial inner groove of the pot 70.
- the pot 70 and the brake spring 76 are secured on the journal by means of a disk 78 and a securing element 79 against horizontal displacement.
- the winding direction of the brake spring 76 is directed so that when unrolling the awning fabric 14, (Fig.
- the operation of the freewheel device in conjunction with the braking device is as follows:
- the spring arranged in the leg 20 spreads the legs 18, 20 apart.
- the nose 60 (FIG. 4) of the pawl 54 engages with the edge 66 (FIG. 7).
- the other two pawls 58, 59 the following consideration refers only to the pawl 54 by way of example.
- No pressure need be exerted on the crank since the tensile force of the spring arranged in the leg 20 is sufficient, the awning fabric 14 against the braking force of the brake spring 76 (FIG. 9) and the transmission friction forces to handle.
- a stop (not shown) on the joint 22 limits the further spreading movement of the legs 18, 20.
- the legs 18, 20 do not form a straight line in this unwinding set position of the awning fabric 14, but rather an obtuse line Angle that makes it possible to initiate the unwinding movement of the awning fabric 14 with a certain force.
- the tensile force previously exerted on the circumference of the winding tube 34 is eliminated, so that only the braking force of the brake spring 76 acts on this winding tube, which ensures that the awning fabric 14 remains taut.
- the awning fabric also remains taut when the crank rod 26 should be rotated further in the sense of unwinding.
- the pawl 54 is pressed inward from the edge 67 into the chamber 53 via its inclined surface 61. This process can be repeated at other cutouts of the gear 44.
- the two gears 43, 44 run in freewheel while the winding tube 34 is held by the brake spring 76.
- the braking force of the brake spring 76 is selected to be greater than the driving force of the freewheel device acting in the unwinding direction.
- crank rod 26 is rotated in the opposite direction.
- the pawl 54 then comes into engagement with the edge 66 or a corresponding other edge with its nose 60, so that the winding tube 34 is carried along.
- the brake spring 76 is opened so that essentially only the force of the tension spring arranged in the leg 20 has to be overcome.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Building Awnings And Sunshades (AREA)
- Seal Device For Vehicle (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Laminated Bodies (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU51014/96A AU5101496A (en) | 1995-09-28 | 1996-03-05 | Awning drive |
DE59609403T DE59609403D1 (en) | 1995-09-28 | 1996-03-05 | awning |
EP96907346A EP0795065B1 (en) | 1995-09-28 | 1996-03-05 | Awning |
AT96907346T ATE220164T1 (en) | 1995-09-28 | 1996-03-05 | AWNING |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19536135A DE19536135A1 (en) | 1995-09-28 | 1995-09-28 | Gear for awning |
DE19536135.0 | 1995-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997012104A1 true WO1997012104A1 (en) | 1997-04-03 |
Family
ID=7773454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/000912 WO1997012104A1 (en) | 1995-09-28 | 1996-03-05 | Awning drive |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0795065B1 (en) |
AT (1) | ATE220164T1 (en) |
AU (1) | AU5101496A (en) |
DE (2) | DE19536135A1 (en) |
ES (1) | ES2176444T3 (en) |
WO (1) | WO1997012104A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10122101A1 (en) * | 2001-05-07 | 2002-11-14 | Christian Born | Device for extending and retracting an awning includes a brake engaging on the material shaft and formed by a speed limiter to restrict unrolling speed of shaft |
ITMI20081081A1 (en) | 2008-06-16 | 2009-12-17 | Cherubini Spa | LIFTING WINCH FOR VENETIAN SHUTTERS AWNINGS OR SIMILAR ITEMS WITH REMOVABLE SHELL |
DE102013108386A1 (en) | 2013-08-05 | 2015-02-05 | Gerhard Geiger GmbH & Co. KG | Windlass for awnings, shutters, blinds and the like. |
DE202016107325U1 (en) | 2016-12-23 | 2017-01-24 | VANA Deutschland GmbH | Manually actuable drive unit for an awning and awning with such a drive unit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0246338A1 (en) * | 1986-05-17 | 1987-11-25 | Carlo Maurizio Pozzi | Limit stop device for the opening of sun curtains |
DE4014962C1 (en) * | 1990-05-10 | 1991-07-11 | Gerhard Geiger Gmbh & Co. Kg, 7120 Bietigheim-Bissingen, De | Drive for awning reel - has bevel gear pair with driven gear coupled to reel shaft |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1979845U (en) * | 1967-11-22 | 1968-02-29 | Hans Dieter Hertel | AWNING. |
DE2823134C3 (en) * | 1978-05-26 | 1980-11-13 | Klafft & Klueppelholz, 5628 Heiligenhaus | Gear for roller shutters and awnings |
-
1995
- 1995-09-28 DE DE19536135A patent/DE19536135A1/en not_active Withdrawn
-
1996
- 1996-03-05 AU AU51014/96A patent/AU5101496A/en not_active Abandoned
- 1996-03-05 EP EP96907346A patent/EP0795065B1/en not_active Expired - Lifetime
- 1996-03-05 ES ES96907346T patent/ES2176444T3/en not_active Expired - Lifetime
- 1996-03-05 AT AT96907346T patent/ATE220164T1/en active
- 1996-03-05 WO PCT/EP1996/000912 patent/WO1997012104A1/en active IP Right Grant
- 1996-03-05 DE DE59609403T patent/DE59609403D1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0246338A1 (en) * | 1986-05-17 | 1987-11-25 | Carlo Maurizio Pozzi | Limit stop device for the opening of sun curtains |
DE4014962C1 (en) * | 1990-05-10 | 1991-07-11 | Gerhard Geiger Gmbh & Co. Kg, 7120 Bietigheim-Bissingen, De | Drive for awning reel - has bevel gear pair with driven gear coupled to reel shaft |
Also Published As
Publication number | Publication date |
---|---|
DE19536135A1 (en) | 1997-04-03 |
DE59609403D1 (en) | 2002-08-08 |
EP0795065A1 (en) | 1997-09-17 |
EP0795065B1 (en) | 2002-07-03 |
ES2176444T3 (en) | 2002-12-01 |
ATE220164T1 (en) | 2002-07-15 |
AU5101496A (en) | 1997-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE68904725T2 (en) | SHUTTER WITH MOTOR DRIVE. | |
DE2514719C2 (en) | Device for distributing and simultaneously cutting rolled up strips of material | |
DE60215941T2 (en) | BRAKING DEVICE FOR ROLLOS AND THE SIMILAR | |
DE69310718T2 (en) | ROLL CURTAIN TO BE MOVED WITH ROPE | |
EP1283797B1 (en) | Device for tightening strapping bands | |
DE7629446U1 (en) | TENSIONER FOR A FLEXIBLE TRAIN | |
DE3115177C1 (en) | Projection screen | |
WO1997012105A1 (en) | Extension limiter for awnings | |
DE69500418T2 (en) | Carrying and control device for a roller blind | |
DE19963862C2 (en) | shading device | |
EP0372004B1 (en) | Tableau curtain | |
EP1223299B1 (en) | Roller blind, in particular insect screen | |
DE3037759A1 (en) | REEL SLAT STORE | |
EP0795065B1 (en) | Awning | |
EP0669447A1 (en) | Sun-protecting device | |
EP1122401A2 (en) | Roller blind | |
CH431900A (en) | Lifting and lowering device for roller shutters and the like | |
EP1411016A2 (en) | Device for automatically winding flexible elongated material | |
DE69903060T2 (en) | A WINDOW SHIELDING DEVICE | |
DE3700546C2 (en) | ||
DE2408161C3 (en) | Manually operated winch for rollable elements | |
DE29624357U1 (en) | Limitation of failure for awnings | |
EP1267031A1 (en) | Security device against the lifting of roller shutters | |
DE29505849U1 (en) | Drive device for a roller blind or the like. | |
EP1884618A2 (en) | Sun protection device with a brake |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1996907346 Country of ref document: EP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref country code: US Ref document number: 1997 849183 Date of ref document: 19970728 Kind code of ref document: A Format of ref document f/p: F |
|
WWP | Wipo information: published in national office |
Ref document number: 1996907346 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1996907346 Country of ref document: EP |