EP1533439B1 - Servohebevorrichtung - Google Patents

Servohebevorrichtung Download PDF

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Publication number
EP1533439B1
EP1533439B1 EP04388084.8A EP04388084A EP1533439B1 EP 1533439 B1 EP1533439 B1 EP 1533439B1 EP 04388084 A EP04388084 A EP 04388084A EP 1533439 B1 EP1533439 B1 EP 1533439B1
Authority
EP
European Patent Office
Prior art keywords
rail
servo
lifting device
rod
spring
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
EP04388084.8A
Other languages
English (en)
French (fr)
Other versions
EP1533439A3 (de
EP1533439A2 (de
Inventor
Lars Kristensen
Henning Villiam Sørensen
Klaus Kornerup
Peter Dirch Jakobsen
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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 VKR Holding AS filed Critical VKR Holding AS
Priority to PL04388084T priority Critical patent/PL1533439T3/pl
Publication of EP1533439A2 publication Critical patent/EP1533439A2/de
Publication of EP1533439A3 publication Critical patent/EP1533439A3/de
Application granted granted Critical
Publication of EP1533439B1 publication Critical patent/EP1533439B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E04D13/0357—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about an axis supported on a hinged frame or arms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1058—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/686—Rods, links
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows
    • E05Y2900/152—Roof windows

Definitions

  • the invention relates to a servo-lifting device. It is used for a window or a door, in particular for a roof window. When a roof window is opened upwardly, the servo-lifting device can provide an auxiliary force so as to overcome the gravity of the sash and thus keep the sash at a certain open angle without falling down or bounce up. This type of servo-lifting device can be used in other devices needing the servo-lifting other than doors and windows.
  • WO95/16097 discloses a servo-lifting device according to the pre-ample of claim 1 used for a roof window.
  • the servo-lifting device comprises a lifting arm with one end connected to a gliding element; the gliding element is fitted into a rail along which it can slide and it connects to a rod through a connecting part.
  • the end of the rail connects to a spring sheath inside which an auxiliary spring is fitted.
  • the rod goes through the spring and at the end where it extends out of the sheath configures a lifting spring.
  • a moving base is located at the end of the sheath where the rod is inside spring and a fixed base fixed relative to the rod is located at the end where the sheath approaches the lifting spring.
  • the servo-lifting device can keep the window staying at any of the stationary position throughout the entire open angle range. It can also provide a servo-lifting force during the opening of the window. Due to the servo spring, the preserved stress can be adjusted according to the slope of the roof so that within the predetermined range of window open angle, the lifting spring will apply a parallel spring force to reinforce the spring force of the lifting spring.
  • this lifting device structure is complex and it has many parts. Not only the cost is high, but also troubles tend to appear since there are many parts. Also the assembling process is complex and it needs the skilled people to operate.
  • US5291634 discloses a servo lifting device according to the pre-ample of claim 1 for the constraining of a hatch or door from a support structure.
  • the purpose of the invention is to provide a simple-structured, low cost servo-lifting device. It is in particular suitable for a roof window and it can provide an auxiliary force so that it ensures the window remaining stationary at any position in the open range.
  • the servo-lifting system for a window comprises a lifting arm with a free end and another opposite end hinged to a gliding element, wherein the gliding element is mounted slidingly to a rail; and a rod is connected at one end with the gliding element and cooperating with a lifting spring, with one end fixed relative to the rod and the other end fixed relative to the rail, wherein the spring is a compression spring whose end near the gliding element is connected to a base mounted on the rod; the other end which is far away from the gliding element abuts a fixed base fixed in said rail wherein the rail is groove-shaped and the fixed base is a right-angle plate whose board matches the inner side of the groove-shaped rail; an opening is constructed in the board on the corresponding rail surface; the other board of the right-angle plate is perpendicular to the rail and embedded into a recess on the rail surface.
  • the bouncing force of the spring produces a tension on the lifting arm through the rod and the gliding element.
  • the tension makes the lifting arm provide a lifting force to the sash of the window so as to overcome partially the window's gravity.
  • the moments of the gravity of the sash, friction of the gliding element relative to the rail and the spring force over the sash balance so that the sash can stay in any open angle.
  • the fixing of the rod and the lifting spring can use such adjustable movable connection as the lifting spring base.
  • the lifting spring base can be blocked by a nut and then positioned on the rod. Since the rod and the relative fixed end of the lifting spring are adjustably fixed relative to each other, the predetermined pressure or stretch of the spring can be conveniently adjusted by adjusting their relative position so as to apply to the spring different predetermined stress and make it suitable for different sloping angles of the roof.
  • the structure of the servo-lifting device is that the lifting spring is a compression spring, one end of which near the gliding element is connected to a base which is mounted on the rod; a fixed base, which is fixed at the rail, is placed at the other end of the lifting spring away from the gliding element.
  • the lifting spring can be placed around or beside and parallel to the rod that goes through the base.
  • the rod can slide relative to the fixed base and the lifting arm so that it ensures the lifting arm is operated steadily.
  • the fixed base is a right-angle plate and the rail is groove-shaped.
  • the board of the right-angle plate matches the inner side of the groove-shaped rail and an open hole is constructed in the board and on the corresponding rail surface.
  • Another board of the right-angle plate is vertical to the rail and it can be embedded into a concave opening on the rail surface.
  • a tab protruding inward can be configured at one end of the rail that blocks the fixed base from sliding out of the rail.
  • the end of the lifting spring can be fixed at the rail and it can also be separated from the rail to facilitate the transporting.
  • the concave opening configuration helps the fixed base embedded into the rail conveniently, ensuring that the open hole on the rail lines up with the hole in the fixed base so that by a screw the fixed base can be fixed to the rail.
  • the lifting spring can be an air spring.
  • the rod connects to the gliding element by way of a screw thread.
  • the other end of the rod connects to the piston of the air spring, preferably using relatively rotatable connection.
  • the air spring is fixed on the rail.
  • the air spring is mounted inside the rail and the other end of the air spring is fixed at the end of the rail.
  • a sliding sleeve surrounds the rod in the lifting spring. Take a plastic sleeve for example.
  • the sliding sleeve holds the lifting spring and prevents noise produced by the shaking from the pressing of the spring.
  • a longitudinal groove can also be configured on the sliding sleeve.
  • the free end of the lifting arm can also be hinged to a fixed arm.
  • the other end of the fixed arm is hinged with the rail.
  • An open hole can be configured on the fixed arm to fix it to the frame or sash conveniently.
  • the servo-lifting device can be fixed at one side of the sash or the frame.
  • a pin axis can be configured at the fixed arm, by which the fixed arm can be conveniently hang on such sash hanging installation parts fixed to the frame as sash locking and unlocking device.
  • the rail can be a groove-shaped part formed by several surfaces.
  • the lifting spring and other parts are inside the rail. This type of structure operates steadily and is compact.
  • an angular restricting tab that limits the maximum open angle of the window.
  • the rail plate can be pressed to form an upward protruding convex part inside the rail.
  • the restricting tab functions against the gliding element so that the window won't open beyond the maximum open angle. This restriction is necessary sometimes.
  • a flange protruding inward inside the rail is located above the gliding element so that the gliding element can be sliding inside the rail steadily and won't fall off the rail. At the same time it prevents the window from over-opening.
  • An open hole is configured on the side surface of the groove-shaped rail for fixing. Also an outward protruding pin can be configured on the exterior surface.
  • the rail can be fixed to the frame or the sash by a screw and the pin through the open hole.
  • a preferred connection configuration for the rod and the gliding element is the connection through the screw thread and the gliding element.
  • the insert depth of the rod into the gliding element can be adjusted. In a certain range it has the function of adjusting the maximum angle between the lifting arm and the rail, i.e. the maximum open angle of the window.
  • the servo-lifting device according to the invention compared with the known servo-lifting device, ensures the prior function, i.e. to ensure that the window keep stationary at any position in the open range; and through the adjustable connection of the lifting arm relative to the rod, by adjusting the predetermined stress of the lifting spring, the servo-lifting device of the invention is suitable for different sloping roof; what's more, its structure is simpler and the installation is more convenient by the open holes on the groove and the fixed arm, also the cost is low.
  • the servo-lifting device can be used in other types of window, door or other field.
  • the servo-lifting device of the invention comprises a groove-shaped rail 1, inside which there is a gliding element 2.
  • the groove-shaped rail is formed by two side surfaces and three bottom surfaces. One of the side surfaces is wider so as to facilitate the fixing to the sash side.
  • the structure ensures a better friction between the gliding element 2 and the rail 1, so that when the window opens to a certain angle, there is enough friction to keep the window stationary. The window won't be closed by the gravity of itself, nor opened automatically by the servo-lifting device.
  • Two open holes 10 are located on the higher side surface of the groove-shaped rail 1. Also at the exterior surface, there are two pins 20 protruding outward. By the screws (not shown) through the open holes 10 and the two pins 20, the rail 1 is conveniently fixed on the side surface of the sash.
  • a lifting arm 3 is hinged to the gliding element 2. The top end of the lifting arm is hinged to a fixed arm 9. One end of the fixed arm 9 is hinged to the end of the rail 1 by an axis 7.
  • a hole 21 and a pin axis 6 are located on the fixed arm 9. The hole 21 is used to fix the fixed arm 9 to the frame by way of a screw.
  • the pin axis can cooperate with a sash locking and unlocking device 8.
  • the sash locking and unlocking device 8 can be mounted at the interior surface of the frame, so that the sash with a servo-lifting device can be conveniently mounted on the frame or conveniently dismantled from the frame. Without the fixed arm 9, directly installing the lifting arm 3 onto the frame through a pin axis is also feasible.
  • a screw hole is configured on the gliding element 2 and the rod 17 has outer thread.
  • the rod 17 is screwed into the hole of the gliding element 2, thus the inserting depth of the rod 17 into the gliding element 2 can be conveniently adjusted. In a certain degree, it can also change the maximum open angle of the window.
  • the rod 17 can be connected to the gliding element by other ways.
  • a pressing spring 12 surrounding the rod 17 acts as the lifting spring.
  • a base 19 and an elastic adjusting nut 18 are configured at the end of the pressing spring 12 near the gliding element and a fixed base 16 made by right-angle plate is at the other end.
  • the rod 17 goes through a hole in the fixed base 16.
  • a tab 22 protruding inward and an open hole 23 are at one end of the groove-shaped rail land a concave 24 is located at the other side.
  • the board of the fixed base 16 vertical to the rail can be embedded into the concave 24. At this time another board sticks to the side surface of the rail and the tab 22 on the rail is against the side edge of the front end of the fixed base 16, fixing the fixed base 16 at the end of the rail 1.
  • the open hole 23 in the fixed base 16 lines up with the open hole in the rail side surface and by screwing a screw in the holes the fixed base 16 can be fixed tightly on the rail.
  • the rod 17 and the pressing spring 12 are exposed and protrude forward.
  • the gliding element 2 slides forward so that the lifting arm 3 and the fixed arm 9 can be stretched straight relative to each other, thus facilitates the transportation. It must be pointed out that, the fixed base 16 can be fixed to the rail by other common means.
  • a noise-reduction means is applied in the embodiment, i.e. to add a plastic or rubber pat 15 and 11 between the spring 12 and the fixed base 16 and the base 19.
  • a plastic sleeve 13 is around the rod 17.
  • the sleeve 13 holds the pressing spring 12, so that the spring won't shake relative to the rod 17 when being pressed, thus prevents the noise being produced due to the shaking of the spring.
  • a plurality of longitudinal grooves (not shown) is configured on the exterior surface of the sleeve 13, so that the sleeve effectively supports the spring 12 and won't produce bigger friction with the spring 12.
  • the servo-lifting device thus is suitable for different slopes of the roofwindows.
  • the pressing spring 12 of the embodiment can use air spring (not shown). It only needs to directly fix the piston of the air spring with the gliding element 2 together or fix them together through the rod 17. By rotatably connecting the piston screwed in the gliding element by thread with the piston of the air spring, the predetermined air spring stress can be adjusted.
  • a tab 5 facing upward is configured at the bottom of the rail 1.
  • the tab comes into contact with the gliding element to stop the further moving.
  • the structure of the servo-lifting device is substantially the same with that of the first embodiment. Only the fixing means is slightly different. So it will be described with reference to the same drawings as that of the first embodiment.
  • the lifting spring 12 uses a stretch spring. The end of the spring near the gliding element is fixed with the rail through the fixed base 19. The other end of the spring 12 is a free end and is fixed to the end of the rod 17'.
  • a sleeve 13 surrounds the rod 17 to support spring thus prevents the noise being produced due to the shaking of the spring. Grooves are configured on the exterior surface of the sleeve 13.
  • the frame or the sash presses the lifting arm 3 through the fixed arm 9, which makes the gliding element 2 slide forward in the rail 1 and then the rod 17 stretches the spring 12.
  • the window closing stops the window will stay at the open position. On the contrary, open the window, and the stretched spring will retract, thus provides a servo force.
  • the lifting arm 3 tilts to another direction, it needs to fix the end of the spring 12 near the gliding element 2 relative to the rod 17 and fix the other end relative to the rail 1.
  • the end of the rod 17 away from the gliding element i.e. the end of the rod 17' is free relative to the spring 12, so it can rotate relative to the spring 12. This embodiment is also feasible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Window Of Vehicle (AREA)

Claims (15)

  1. Servohebevorrichtung für ein Fenster mit einem Hebearm (3) mit einem freien Ende und einem anderen gegenüberliegenden Ende, das an einem Gleitelement (2) angelenkt ist, wobei das Gleitelement (2) verschiebbar an einer Schiene (1) angebracht ist, und wobei eine Stange (17) an einem Ende mit dem Gleitelement (2) verbunden ist und mit einer Hebefeder (12) zusammenwirkt, wobei ein Ende relativ zu der Stange (17) fixiert ist und das andere Ende relativ zu der Schiene (1) fixiert ist, dadurch gekennzeichnet, dass die Hebefeder (12) eine Druckfeder ist, deren Ende nahe dem Gleitelement (2) mit einer Basis (19) verbunden ist, die an der Stange angebracht ist, wobei das andere Ende, das weit entfernt von dem Gleitelement ist, an einer fixierten Basis (16) anliegt, die in der Schiene (1) fixiert ist, wobei die Schiene nutförmig ist und die fixierte Basis (16) eine rechtwinklige Platte ist, deren eine Fläche zu der Innenseite der nutförmigen Schiene (1) passt, wobei eine Öffnung (23) in der einen Fläche und an der entsprechenden Schienenoberfläche ausgebildet ist, wobei die andere Fläche der rechtwinkligen Platte senkrecht zu der Schiene (1) und in einer Aussparung (24) an der Schienenoberfläche gegenüber der Öffnung (23) eingebettet ist.
  2. Servohebevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Hebefeder (12) um die oder parallel zu der Stange (17) angeordnet ist, die durch die Basis (19) verläuft und relativ zu der fixierten Basis (16) und dem Hebearm (3) gleiten kann.
  3. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Basis (19) die Stange (17) umgibt und eine elastische Einstellschraubenmutter auf die Stange (17) an der Seite der Basis (19) aufgeschraubt ist, die dem Gleitelement (2) gegenüberliegt.
  4. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein sich nach innen erstreckender Vorsprung (22), der gegen die Seitenkante der rechtwinkligen Platte gedrückt wird, an dem Ende der nutförmigen Schiene (1) ausgebildet ist.
  5. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Druckfeder eine Luftfeder ist, die an der Schiene (1) fixiert ist, wobei die Stange (17) mit dem Gleitelement (2) mittels Gewinden verbunden ist und das andere Ende der Stange mit dem Kolben der Luftfeder verbunden ist.
  6. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das freie Ende des Hebearms (3) auch an einem festen Arm (9) angelenkt ist und das andere Ende an der Schiene (1) an dem anderen Ende angelenkt ist.
  7. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Stift und/oder eine Öffnung in dem festen Arm (9) ausgebildet ist/sind.
  8. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Hülse (13) zum Dämpfen der Druckfeder (12) angeordnet ist, die die Stange (17) in der Druckfeder (12) umgibt, wobei die äußere Oberfläche der Hülse die Druckfeder (12) stützt.
  9. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Vielzahl von in Längsrichtung verlaufenden Nuten an der äußeren Oberfläche der Hülse ausgebildet sind.
  10. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schiene (1) eine nutförmige Schiene ist, die durch eine Vielzahl von Oberflächen gebildet ist.
  11. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass innerhalb der Schiene (1) ein Vorsprung (5) ist, der den maximalen Öffnungswinkel des Fensters begrenzt, wobei, wenn das Fenster bis zu seinem Maximalwinkel geöffnet ist, der Vorsprung an dem Gleitelement (2) anliegt.
  12. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Flansch (4), der sich nach innen erstreckt, über dem Gleitelement angeordnet ist, so dass das Gleitelement in der Schiene gleiten kann.
  13. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Öffnung (10) an der Seitenfläche der nutförmigen Schiene (1) zur Befestigung ausgebildet ist.
  14. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Stift (20), der sich nach außen erstreckt und in das Loch in dem Flügel eingesetzt wird, an der Seitenfläche der nutförmigen Schiene (1) ausgebildet ist.
  15. Servohebevorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stange (17) mit dem Gleitelement (2) mittels Gewinden verbunden ist.
EP04388084.8A 2003-11-21 2004-11-20 Servohebevorrichtung Expired - Lifetime EP1533439B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04388084T PL1533439T3 (pl) 2003-11-21 2004-11-20 Urządzenie podnoszące z serwomechanizmem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200320121956 2003-11-21
CNU2003201219564U CN2703061Y (zh) 2003-11-21 2003-11-21 助力提升装置

Publications (3)

Publication Number Publication Date
EP1533439A2 EP1533439A2 (de) 2005-05-25
EP1533439A3 EP1533439A3 (de) 2009-01-21
EP1533439B1 true EP1533439B1 (de) 2015-02-25

Family

ID=34427794

Family Applications (1)

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EP04388084.8A Expired - Lifetime EP1533439B1 (de) 2003-11-21 2004-11-20 Servohebevorrichtung

Country Status (3)

Country Link
EP (1) EP1533439B1 (de)
CN (1) CN2703061Y (de)
PL (1) PL1533439T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE510086T1 (de) * 2006-06-27 2011-06-15 Vkr Holding As Hubvorrichtung und fenster mit solcher vorrichtung
EP2752549B1 (de) * 2014-03-26 2016-10-19 VKR Holding A/S Oben aufgehängtes Dachfenster mit einem Aktuator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950819A (en) * 1975-01-16 1976-04-20 Weber-Knapp Company Lid counter-balance mechanism
IT1257777B (it) * 1992-03-26 1996-02-13 Cerniera perfezionata per il vincolo di ante o sportelli ad una rispettiva struttura di supporto
DK170718B1 (da) 1993-12-10 1995-12-18 Rasmussen Kann Ind As Vindue, navnlig til indbygning i en skrå tagflade
DE19717193A1 (de) * 1997-04-24 1998-11-05 Doerken Tageslichtsysteme Gmbh Schrägdach-Klappschwingfenster

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Publication number Publication date
CN2703061Y (zh) 2005-06-01
PL1533439T3 (pl) 2015-07-31
EP1533439A3 (de) 2009-01-21
EP1533439A2 (de) 2005-05-25

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