CN111386376B - Lifting device comprising a skid system shaft and roof window comprising such a lifting device - Google Patents
Lifting device comprising a skid system shaft and roof window comprising such a lifting device Download PDFInfo
- Publication number
- CN111386376B CN111386376B CN201880075483.8A CN201880075483A CN111386376B CN 111386376 B CN111386376 B CN 111386376B CN 201880075483 A CN201880075483 A CN 201880075483A CN 111386376 B CN111386376 B CN 111386376B
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- shaft
- skid
- lifting device
- roof window
- frame
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Images
Classifications
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- 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
-
- 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
- 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
-
- 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
- E04D13/0351—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis
- E04D13/0354—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts pivoting about a fixed axis the parts being flat
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
- E05D15/406—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and sliding guides
-
- 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
- E05F1/1066—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 traction spring
- E05F1/1075—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 traction spring for counterbalancing
-
- 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
- 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
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/214—Disengaging means
-
- 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
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/47—Springs
- E05Y2201/474—Compression springs
-
- 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
- E05Y2201/624—Arms
-
- 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
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/50—Mounting methods; Positioning
- E05Y2600/52—Toolless
- E05Y2600/522—Axial stacking
-
- 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
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/50—Mounting methods; Positioning
- E05Y2600/52—Toolless
- E05Y2600/528—Hooking, e.g. using bayonets; Locking
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Window Of Vehicle (AREA)
Abstract
A lifting device (10) intended for a roof window and which lifting device (10) comprises a lifting arm (14), a spring assembly (20) with a first coupling member and a skid system (30). The first end (12) of the lifting arm (14) is rotatably connected with the skid system (30) and the second end (13) is configured to be connected to another part of the roof window. According to the invention, the first end (12) of the lifting arm (14) is connected to the skid system (30) via a shaft (40) fixedly connected to the first end (12).
Description
Technical Field
The present invention relates to a lifting device for a roof window, in particular for installation in an inclined roof surface, comprising: a lifting arm; a spring assembly having a first coupling member; and a sled system configured to be slidably connected to a portion of the roof window and comprising a sled and a second coupling member configured to mate with the first coupling member, wherein the first end of the lifting arm is rotatably connected with the sled system and the second end is configured to be connected to another portion of the roof window. The invention also relates to a roof window incorporating such a lifting device.
Background
In roof windows for installation in inclined roof surfaces operating wholly or partly about a top hinge axis, it is known to counterbalance the weight of at least part of the movable component by means of lifting means which are respectively inserted between a pair of associated side members of the fixed frame and the sash element and one end of which is pivotally connected with one of the side members, while the other end is hinged to a sliding seat displaceable along the other side member, said seat being biased in one direction by a tension spring so as to apply an outwardly directed pressure force to the sash element through the rod. The purpose of this arrangement is to facilitate opening of the window, and the dimensions may be selected so that the springs balance the top hinged frame in the desired open position.
The offset sliding seat of such lifting devices is mounted on and moves parallel to or along the side frame member or side window element. The sliding seat typically slides in a guide mounted on the respective sash or frame member. The spring means biasing the sliding seat are typically positioned parallel to the respective sash or frame member. During opening and closing of the window, the sliding seat slides in the guide, pushing the lifting arm connecting the sliding seat with the intermediate frame or sash member to or from the parallel position. Rotation of the lifting arm in the slide shoe about the axis requires means for connecting the two parts in a rotatable manner.
Lifting devices for roof windows using sliding seats are known and can be found for example in EP 2406448B 1 of the applicant, wherein a lifting device is described comprising: a biased slide shoe adapted to slide relative to a member of the openable structure; a lifting arm having two ends, one end adapted to be pivotally connected to a member of the structure and the other end associated with the slide shoe. Another example is found in applicant's EP 1520951B 1, which discloses a slide arrangement comprising a slide member having a slide shoe adapted to engage with a generally U-shaped track comprising a bottom wall, side walls and a front wall. The solutions disclosed in the above documents have in common that the sliding seat described therein is adapted to be connected to another member, such as a sash or a lifting arm, by means of a single hole. Although the object of providing an axis about which the further member may be connected to the sliding seat in a manner that enables a suitable rotation is achieved, the resulting connection is weak, i.e. does not provide the stability and durability required for a lifting device used in a roof window of the type described in the introduction; the weight of the sash is increasing, because modern sashes comprise additional elements providing a greater range of functions, and better thermal insulation properties require a greater amount of material to be included in the structure of the frame, glazing and sash. Furthermore, such a device for connecting a sliding seat to a lifting arm in a roof window lifting device results in the need to replace parts at a considerable frequency: individual rivets or other suitable parts such as bolts, screws or pins typically wear rapidly when subjected to the weight of the sash frame member, which parts also bear the weight of the window glass. In addition, in the case of frequent use of the lifting device, such parts are repeatedly subjected to forces such that the parts need to be maintained. Wear on the swivel connection results in the forces being transmitted to other components of the system, which cumulatively results in inconsistent sliding of the sliding seat and in the opening and closing of the roof window being inefficient and inaccurate. A further problem with this arrangement is that it does not provide a solution for easily removing and replacing used parts at the same time.
In view of this, a current challenge is to provide a roof window lifting device with a sliding device that is able to withstand the current load requirements while providing a durable smooth, accurate and efficient use while providing a solution for a convenient swivel connection replacement.
Disclosure of Invention
It is therefore an object of the present invention to provide a roof window lifting device wherein the sliding seat or sled system is provided with durable rotational connection means to the lifting arm, thereby providing a smooth sliding and thus a precise and efficient operation of the roof window lifting device.
This is achieved by a roof window lifting device of the kind mentioned in the introduction, which is further characterized in that the first end of the lifting arm is connected to the skid system via a shaft fixedly connected to said first end.
In case a shaft is used, the forces generated by the operation of the lifting device during opening and closing of the roof window can be maintained at least better due to the fact that the shaft is supported at more than one point. This force will be repeated with frequent operation of the roof window. The effect of the skid system on the lifting arm and the effect of the lifting arm on the skid system can be transferred more efficiently via the axle. Thus, the precision, efficiency and durability are significantly improved over the single rivet or other suitable rotary connection means contemplated in the prior art. In the context of the present application, the term "fixedly" should be interpreted in such a way that: the lifting arm is always connected to the shaft and thus to the skid system during operation and may therefore not be unintentionally released from engagement.
In a currently preferred embodiment, the fixed connection is provided by a form-fitting engagement between the first end of the lifting arm and the shaft, preferably by forming the first end as a closed part. This provides a mechanically simple but reliable connection.
In a preferred embodiment, the shaft is mounted in a skid system. By the lifting device of the invention comprising a skid accommodating the shaft, a better stability and an increased robustness of the entire skid system can be achieved, so that a smoother operation of the skid system can be obtained.
According to another embodiment, the shaft comprises an at least partly substantially circular outer periphery and two end faces. By the substantially circular outer circumference of the shaft of the lifting device, a smoother movement of the lifting arm about the rotation axis is obtained, thus enabling an overall more precise operation of the lifting device.
By "precise operation of the lifting device" is meant that the opposing fixed frame and the movable sash element are aligned in a substantially parallel manner, resulting in a close juxtaposition of said opposing members in the closed window position. This also means that a predictable amount of force is required for operation of the lifting device, since the bias of the tension spring is transferred to the lifting arm with reduced resistance.
Furthermore, by making the outer circular surface of the shaft appear to be directly connected with the lifting arm, and in the absence of other coatings that may prematurely wear, it is possible to obtain greater durability of the lifting device shaft. In a further embodiment, a shaft is considered which has a partially non-circular cross section, in particular on the end of the shaft, wherein at least a width sufficient to receive the lifting arm width is circular. Such an embodiment provides the advantage of inserting the shaft end into a complementary non-circular hole in the skid wall portion, which reduces the chance of accidental rotation of the shaft in the skid wall portion.
According to another preferred embodiment, the shaft is fixed in the skid wall part and the lifting arm is free to rotate around the shaft. The fixed nature of the shaft in the skid wall portion ensures greater overall skid system stability. Furthermore, if the shaft is fixed in the wall part, it is easier to ensure the lateral position of the shaft in the skid wall part. However, another embodiment is also contemplated in which the shaft is fixed in the lifting arm and rotates in the skid wall portion.
According to another embodiment, wherein the slider is provided, the shaft is adapted to further contact at least one cut-out in the slider wall. The cutouts facilitate direct insertion of the shaft into the skid system during assembly. In addition, the cut-out edge may extend circumferentially along the edge of the shaft end face, thereby providing further support and stabilization means for the shaft. By "stable" it is meant that the cut-out edge will help to hold the shaft in place by reducing the likelihood of the shaft being displaced laterally within the skid wall portion.
Similarly, in a further embodiment in which a slide is provided, the shaft is adapted to further contact at least one bowl portion in the skid or slide. The shaft is adapted to contact the bowl portion which provides further support for the shaft and helps to maintain the forces generated during operation of the lifting device and the forces transferred between the skid system and the lifting arm via the shaft.
In another preferred embodiment, the shaft has at least one end with a pattern. The knurled end portion is adapted to be inserted into at least one hole in the at least one skid wall portion. By such an end, the shaft can be inserted into the hole more easily, thereby making assembly easier. Additionally, such a knurled end helps secure the axle in the hole of the skid system wall, thereby making the axle more secure. By "textured" is meant any arrangement that results in a matte surface that is present on the outer circumference of the shaft.
In a second aspect of the invention, a roof window incorporating such a lifting device is provided.
Other presently preferred embodiments and advantages will become apparent from the accompanying description and drawings.
Drawings
In the following description, embodiments of the invention will be described with reference to the schematic drawings, in which
Fig. 1 is a perspective view of a roof window seen from the inside and in an open position;
fig. 2 is a perspective view of a detail of the roof window with a lifting device in a first embodiment of the invention and corresponding to the open position of the roof window of fig. 1;
fig. 3 is an isometric view of a detail of the roof window of fig. 2, in the closed position of the window.
FIG. 4 is a partially exploded view of a detail of FIG. 3;
FIG. 5 is an isometric view of the spring assembly shown in FIG. 3;
FIG. 6 is an enlarged, partial isometric view of the spring assembly shown in FIG. 5;
FIG. 7 is a partially exploded isometric view of some of the elements of FIG. 6;
figures 8a to 8e are isometric views of the elements of figure 7;
FIG. 9a is an enlarged partial isometric view of the detail shown in FIG. 3;
FIG. 9b is an exploded partial perspective view of a detail of a lifting device in another embodiment of the present invention;
figures 10 and 11 are partial isometric views of a detail of a lifting device of a roof window in a second embodiment of the invention;
fig. 12a to 12h are schematic partial side views of an embodiment of the roof window of the invention during coupling and uncoupling of the lifting device;
figures 13a to 13b, 14a to 14b and 15a to 15b are perspective views of details of a roof window in a second embodiment;
fig. 16 shows a schematic perspective view of a detail of a roof window in a third embodiment of the invention;
fig. 17 shows a schematic side view of a detail of a roof window in a further embodiment of the invention;
fig. 18a to 18e are views of a detail of the roof window in the third embodiment, corresponding to fig. 8a to 8e, respectively;
fig. 19 a-19 b are views of a detail of the roof window in the third embodiment, corresponding to fig. 13 a-13 b, respectively;
fig. 20a is a view corresponding to fig. 14a of a detail of a roof window in a third embodiment;
fig. 20b is a partial perspective view of a detail of the roof window in the third embodiment; and
fig. 21 to 24 show a partial or full view, an exploded view or a sectional view of a detail of a roof window in a further embodiment of the invention.
Detailed Description
Referring first to fig. 1, the general configuration of a roof window that is top hinged and pivoted for cleaning during normal operation is shown. Such a window is shown and described in more detail in applicant's above-mentioned european patent No. 0733146B1, the contents of which are incorporated herein by reference. In fig. 1a lifting device 10 is shown, and now also referring to fig. 2-9, the lifting device forms part of a first embodiment of a roof window according to the invention.
The roof window comprises a main frame in the form of a fixed frame 1 which is configured for mounting in an inclined roof surface. At least one sub-frame is connected to the fixed frame 1, in the embodiment shown a first sub-frame in the form of a sash 2 carrying a pane 4 and a second sub-frame in the form of an intermediate frame 3. The intermediate frame 3 is fastened to the fixed frame at the top mounting fitting 5 and the sash 2 is hinged to the fixed frame 1 via the intermediate frame 3 at the top of the roof window in order to hang the roof window up during normal operation. The sash 2 is also pivotally connected to the intermediate frame 3 so as to enable rotation of the sash 2 to provide access to the outside of the glazing 4, for example for cleaning purposes. For this purpose the intermediate frame 3 is provided with a frame hinge part 6 of a pivoting hinge fitting. Although not shown in detail, it is clear to the skilled person that the sash 2 is provided with a counterpart sash hinge part of the pivot hinge fitting.
Lifting device 10 includes a spring mechanism 20 and a skid system 30, spring mechanism 20 and skid system 30 cooperating to assist in opening the window, i.e., bringing one or more sub-frames into an angled position relative to the main frame. Here, the user operates the operating means of the window in the form of a handle 7 at the bottom member of the sash 2 from the closed position. The biasing of the spring mechanism 20 of the lifting device 10 acts on the lifting arm 14 which is inserted between the fixed frame 1 and the intermediate frame 3. In turn, the lifting arm 14 applies a moment to the intermediate frame 3 and hence to the window sash, relative to an axis passing through the top hinge pin 11. In combination with the force exerted by the user on the handle 7, which is converted into a lifting moment, the moment generated by the weight of the sash 2 and the pane 4 is overcome. Closing the window from the open position requires a reverse movement of the sash 2 and the relevant parts of the lifting device 10. Similar lifting means may be provided at each side of the roof window. Finally, the roof window is provided with ventilation means 8 for allowing air to pass also in the closed position of the window.
In more detail, the lifting arm 14 has a first end 12 rotatably connected with a skid system 30, the skid system 30 in turn slidably connected with the main frame 1 in a skid guide 16, and a second end 13 rotatably connected with at least one sub-frame 3, the lifting device 10 further comprising a spring assembly 20, the spring assembly 20 configured to be coupled to the skid system 30. Since skid system 30 is connected to lift arm 14, spring assembly 20 is in turn configured to be connected to first end 12 of lift arm 14 by way of a coupling mechanism such that spring assembly 20 can be in an uncoupled state and a coupled state relative to skid system 30. The coupling mechanism is the subject of applicant's co-pending patent application filed on the same day as the present invention. The operation of the presently preferred embodiment is described in detail in connection with fig. 12a to 12h of the applicant's co-pending international application filed on the same date as the present application and claiming priority to DK PA 201770889, to which particular reference is hereby made.
Fig. 5 and 6 show the general components of the spring assembly 20 of the roof window. Further details and advantages of the particular spring assembly 20 are the subject of a co-pending patent application filed on the same day as the present application and are shown in fig. 21-24 for reference purposes only. However, the present invention can be applied to any type of spring assembly. Thus, the common components of the spring assembly are: a pull rod 22 housing a damping spring system 28 and a main spring system 29. The damping spring system 28 serves as an auxiliary system for the main spring system 29. In order to adapt the same spring assembly to different roof inclinations, an adjustment device in the form of a movable adjustment plate 26 is provided, which is placed in one of several recesses 27a of a spring housing 27 accommodating a damping spring system 28.
Referring now in particular to fig. 10 to 11, 13a to 13b and 15a, as best shown in fig. 6, the coupling mechanism comprises a first coupling member 21 associated with the spring assembly 20.
In all the embodiments shown, the first coupling member comprises a hook element 21 to cooperate with the second coupling member comprising a receiving means of this hook element formed in the skid system 30, in the second coupling member of the coupling mechanism comprising the skid 31 of the skid system 30. The hook element 21 is configured to have at least an unengaged position and an engaged position, and the coupling mechanism further comprises a coupling plate 25, the coupling plate 25 being arranged to have at least a first position corresponding to the coupled state and a second position corresponding to the uncoupled state, the coupling plate 25 allowing the hook element 21 to be in said unengaged position. The operation of the presently preferred embodiment will be described in further detail in connection with fig. 12a to 12 h.
The receiving means of the second coupling member comprises at least one receiving recess 314 in the skid 31 of the skid system 30. Other shapes for the second coupling member are also possible. One conceivable alternative solution would be to use the shaft 40 as a receiving means. This alternative solution is shown in a fourth embodiment shown in fig. 20.
Further details of the shaft 40 will now be described in more detail with reference to fig. 10 and 15a to 15b, 16 and 20 b.
Fig. 10 shows the axle of the present invention installed in a skid system, connecting both lift arm 14 and skid system 30. The shaft 40 comprises an at least partly substantially circular outer periphery and two end faces. In a preferred embodiment, the shaft has a circular outer periphery and is therefore arranged to be inserted into a hole having a circumference in the wall of the skid 31 while rotatably receiving the lifting arm end 12. The circular periphery enables the lifting arm to be rotatably attached. Thus, the portion of the shaft presenting a circular outer periphery should be at least wide enough to accommodate the lifting arm end 12. The end of the shaft needs in any case to be arranged to be easily inserted into said hole in the wall of the skid 31, which should be arranged to complementarily receive said shaft end.
In the illustrated embodiment, the shaft end has a circular periphery and the hole in the wall of skid 31 also has a circular periphery, but the shaft end and hole may have any other peripheral shape, such as triangular, square, pentagonal, etc., or an irregular shape. In any event, the peripheral shapes with respect to the shaft and the skid wall portion should correspond to each other.
In principle, the configuration of shaft 40 in skid 31 or skid system 30 may be performed in any suitable manner as long as it meets the requirements caused by the relatively large forces involved.
Turning now to a more detailed representation in fig. 17, the shaft 40 is arranged such that there is a gap between at least one end face of the shaft 40 and the guide 16. In the illustrated figures, this gap is achieved by making the shaft shorter than the width of the slider 32, thereby creating a gap between the shaft 40 and the portion that may contact the slider 32. In the illustrated image, the space created is equally divided between the two axial end faces, creating a gap at both ends of the shaft 40. In any case, it is intended that the shaft 40 is not in direct contact with the fixed frame 1 or the guides 16 (if present).
Also in fig. 15a, the shaft 40 is arranged to contact at least one cut-out 325, 326 in the wall portion 321, 322 of the slider 32. The cut-out edge may be arranged to extend circumferentially along the edge of the shaft end face to provide further support to the shaft and to help hold the shaft in place by reducing the likelihood of the shaft being displaced laterally within the wall of skid 31.
The arrangement shown in fig. 15a provides a robust and compact assembly having an axle arranged to maintain the force transmitted by the spring assembly and lifting arm 14 to the skid system. For this purpose, the shaft 40 is inserted into the skid wall part such that in the mounted state the shaft is fixed under the force normally generated by the operation of the roof window lifting device. Fig. 18 shows axle 40 of the present invention, with axle 40 having a textured end 401 which when inserted into one of the walls 315, 316 of skid 31 secures the axle in skid system 30. By "fixed" it is meant that under normal use of the lifting device, the knurled end 401 of the shaft 40 will significantly reduce the likelihood of the shaft rotating within the holes 315, 316 of the skid wall portion and/or moving along the axis of the shaft. The knurled end 401 provides a reduced contact surface between the shaft 40 and the inner surface of the holes 315, 316 of the skid wall portion, thereby enabling the shaft to be inserted forcefully into the holes and, with it, increasing the friction between the two parts. The drawings of fig. 10 and 11 show the shaft 40 having a patterned end, but any arrangement that provides increased friction between the outer surface of the shaft and the bore of the skid wall portion is also contemplated. Finally, the skid 31 is provided with a second opening 318 and a cut-out 319 to make room for other components of the lifting device 10.
In the third embodiment of the roof window shown in fig. 19 a-19 b, the skid 31 is made longer than the skids of the first and second embodiments. This provides greater strength to skid 31. Thus, the incision 319 is made longer.
At least one shaft end 401, 402 may include locating marks 404. Such locating marks require corresponding fiducials 403 on the skid wall or slide so that sufficient deformation of the material can be detected during installation of the shaft 40 in the skid 31. A preferred way of achieving this is by mounting the shaft in a hole in the skid wall portion such that a corresponding locating mark on the end face of the shaft is substantially aligned with the datum.
The description of skid system 30 is given for reference purposes only and is the subject of applicant's co-pending patent application filed on the same day as the present application. To more precisely control frictional forces as skid system 30 moves within skid guide 16, skid system 30 of the present invention includes a slider 32, slider 32 being configured to receive skid 31 and being provided with at least one recess 324 opposite a corresponding receiving recess 314 in skid 31.
The skid system 30 of the slider 32 includes: a slider 32, the slider 32 having at least two faces, a slider inner face and a slider outer face; and a skid 31, the skid 31 having at least two faces, a skid inner face and a skid outer face, the slide 32 comprising at least one wall 321, 322 and the slide 32 being configured to receive the skid 31 in such a way that the skid 31 abuts against said slide inner face of the slide 32, and wherein said slide 32 is provided with at least one recess 324 opposite to the corresponding receiving recess 314 in said skid 31.
In the illustrated embodiment, the slide 32 is guided in the skid guide 16. Alternatively, the slider 32 may be guided directly in the main frame 1.
In addition, skid 31 and/or slide 32 may include means for reducing movement between the slide inner surface and the skid outer surface. In the illustrated embodiment, the means for reducing movement between the inner surface of the slider and the outer surface of the skid comprises a resilient upstanding portion 327 in the slider 32 and a corresponding opening 317 in the skid 31 opposite the resilient upstanding portion 327.
In the illustrated embodiment, another means for reducing movement between the slider inner surface and the sled outer surface includes at least one flange on at least one slider wall portion 321, 322, the at least one flange being arranged to abut the sled 31.
As shown, at least a portion of one of the slider wall portions 321, 322 is thinner than the other wall portion 321, 322, and the first collar portion 321a, 322a is thinner than the second collar portion 321a, 322 a.
In the illustrated embodiment, the slide 32 further includes a bowl portion 323 arranged to receive the shaft 40, and the skid 31 includes a corresponding opening 317 opposite the bowl portion 323. The bowl portion 323 and the opening 317 are arranged such that the distance between the bowl portion 323 and the sled first wall portion 311 is greater than the distance between the bowl portion 323 and the sled second wall portion 312.
The slide 32 further comprises at least one cut-out 325, 326 in at least one wall 321, 322 arranged to receive the shaft 40.
Here, the slider 32 further includes an edge portion 328 as a cutout on at least one end.
In the embodiment shown, the slide 32 is formed of a plastic material, such as POM, which plastic may also be provided with, for exampleOr other treatment layer having the function of acting as a lubricant to reduce friction.
The constriction 313 on the slide 32 is produced for reasons of space availability. By forming the slide to be slimmer on one side, 322a can be made thicker and provide a tolerance on the side where 322 is located-in this way the shaft 40 is guided so that the end 402 does not protrude to the extent that it causes wear to the sides of the guide.
The edge portion 328 is provided as a cut-out to allow room for the rest of the assembly. The flange portion 329 scrapes the guide to the side of the guide.
In general, the components of the lifting device are subjected to high loads, especially in case of large roof windows and low roof inclinations. In such application areas, the lifting capacity required for the lifting device may amount to approximately 500 Nm. Such large loads not only place severe demands on the components, but also require high performance spring assemblies.
In addition to the aspects covered by the present application, precautions are taken to mitigate the adverse effects of loads in the top hinge pin 11 and top support fitting 15. In order to keep the top hinge pin 11 safely secured in the top bearing fitting 15 at all times, the top hinge pin 11 is formed with a head and is fastened against rotation. In order to safely transfer the load exerted by the sash on the top hinge pin 11 via the intermediate frame to the top support fitting 15, the top support fitting 15 is provided with a protrusion (not shown in detail).
The invention has been described above with reference to a sash and a frame of a roof window, but it will be appreciated that the invention is also applicable to other frame structural members, such as for example a door frame.
List of reference numerals:
1 Main frame (fixed frame)
2 first subframe (Window sash)
3 second subframe (middle frame)
4 window glass
5 Top mount fitting
6 frame hinge part of a pivoting hinge fitting
7 handle
8 ventilating device
10 lifting device
11 hinge pin
12 first end of lifting arm
13 second end of lifting arm
14 lifting arm
15 Top support fitting
16 skid guide
20 spring assembly
21 first coupling member/hook element
210 tip
211 orifice
212 substrate portion
213 Flange portion
214 hook portion
215 rounded transition edge portion
216 inclined edge portion
217 Top portion
217a recess in the top portion
218 bottom edge portion
219 inclined edge part
22 draw bar
221 shank portion
222 head portion
223 first inclined portion
224 second inclined portion
225 adjusting ring
23 corner element
231 orifice
231a enlarged orifice section
232 upright leg
233 bottom leg
234 projecting flange
235 gap
24 end piece
241 aperture
242 upstanding wall
243 projecting part
244 projecting flange
244a rib portion
245 track
246 bent flange portion
25 connecting plate
251 rectangular opening
252 base portion
253 bottom flange
254 cut
255 vertical leg
256 friction increasing part
26 adjusting plate
27 spring housing
27a recess for adjusting the plate
28 buffer spring system
281 external spring
282 inner spring
283 spring plug
284 spring plug
29 main spring system
291 spring
292 spacer tube
30 skid system
31 second coupling member/skid
310 bottom part
311 first wall part
312 second wall part
313 narrowing part
314 receiving recess
315 hole
316 hole
317 first opening
318 second opening
319 incision
32 sliding part
320 bottom part
321 first wall part
321a first collar segment
322 second wall portion
322a second collar section
323 bowl-shaped part
324 concave part
325 cut
326 incision
327 resilient upstanding portion
328 edge portion
329 flange part
40 shaft
401 patterned end
402 another end portion
403 mark
404 positioning mark
50 friction braking device
51 Friction braking element
52 first taper part
53 second cone part
54 spring plug
Claims (12)
1. A lifting device (10) for a roof window for installation in an inclined roof surface, the lifting device (10) comprising:
a lifting arm (14);
a spring assembly (20), the spring assembly (20) having a first coupling member; and
a sled system (30), the sled system (30) configured to be slidably connected to a portion of the roof window and comprising a sled (31) and a second coupling member configured to mate with the first coupling member,
wherein a first end (12) of the lifting arm (14) is rotatably connected with the skid system (30) and a second end (13) is configured to be connected to another part of the roof window,
it is characterized in that the preparation method is characterized in that,
the first end (12) of the lifting arm (14) is connected to the skid system (30) via a shaft (40) fixedly connected to the first end (12), and
the shaft (40) comprises an at least partly substantially circular outer periphery and two end faces, wherein
The shaft (40) contacts the skid system (30) through at least one receiving hole (315, 316) in at least one skid wall portion (311, 312) of the skid (31), wherein
The skid system (30) further includes a slider (32), and the shaft (40) further contacts at least one cutout (325, 326) in a wall portion (321, 322) of the slider (32).
2. Lifting device for a roof window according to claim 1, wherein the fixed connection is provided by a form-fitting engagement between the first end (12) of the lifting arm (14) and the shaft (40).
3. Lifting device for a roof window according to claim 1, wherein the fixed connection is provided by forming the first end (12) as a closed part.
4. Lifting device for a roof window according to claim 1, wherein the shaft (40) is mounted in the skid system (30).
5. Lifting device for a roof window according to any one of the preceding claims 1-4, wherein the lifting device (10) further comprises a guide (16) and the shaft (40) is arranged such that there is a gap between at least one end surface of the shaft (40) and the guide (16).
6. Lifting device for a roof window according to any one of the preceding claims 1-4, wherein the shaft (40) is received in at least one bowl shaped part (323) in the skid (31) or the slide (32), the skid (31) comprising a corresponding opening (318) opposite the bowl shaped part (323).
7. A lifting device for a roof window according to any one of the preceding claims 1-4, wherein the shaft (40) has at least one knurled end for insertion into the at least one receiving hole (315, 316) in the at least one skid wall portion (311, 312).
8. Lifting device for a roof window according to any one of the preceding claims 1-4, wherein the shaft (40) comprises at least one positioning mark (404), and wherein the skid (31) and/or the slide (32) comprises at least one corresponding positioning mark positioned opposite the at least one positioning mark (404) on the shaft.
9. Lifting device for a roof window according to any one of the preceding claims 1-4, wherein the shaft (40) constitutes the second coupling member.
10. A roof window for installation in a sloping roof surface, the roof window comprising: a main frame (1); at least one subframe (2, 3); and at least one lifting device (10) according to any one of claims 1-7, wherein the lifting arm (14) is interposed between the main frame (1) and the at least one sub-frame (2, 3), the lifting arm (14) having a first end (12) and a second end (13), the first end (12) being rotatably connected with the skid system (30), the skid system (30) being slidably connected with the main frame (1), the second end (13) being rotatably connected with the at least one sub-frame (3).
11. A roof window according to claim 10, wherein the at least one sub-frame (2, 3) is a sash (2).
12. A roof window according to claim 10 or 11, wherein the at least one sub-frame (2, 3) is an intermediate frame (3).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA201770886 | 2017-11-24 | ||
DKPA201770886A DK180500B1 (en) | 2017-11-24 | 2017-11-24 | Lifting device including a sledge system axle and a roof window comprising such a lifting device |
PCT/DK2018/050309 WO2019101278A1 (en) | 2017-11-24 | 2018-11-26 | Lifting device including a sledge system axle and a roof window comprising such a lifting device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111386376A CN111386376A (en) | 2020-07-07 |
CN111386376B true CN111386376B (en) | 2021-08-24 |
Family
ID=64572051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201880075483.8A Active CN111386376B (en) | 2017-11-24 | 2018-11-26 | Lifting device comprising a skid system shaft and roof window comprising such a lifting device |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3714123B1 (en) |
CN (1) | CN111386376B (en) |
DK (1) | DK180500B1 (en) |
ES (1) | ES2903169T3 (en) |
HU (1) | HUE057096T2 (en) |
PL (1) | PL3714123T3 (en) |
WO (1) | WO2019101278A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0408655A1 (en) * | 1988-04-08 | 1991-01-23 | Nygaard Lena Eklund Legal Repr | A window, especially for installation in an inclined roof. |
EP0679775A1 (en) * | 1994-04-26 | 1995-11-02 | ROTO FRANK Aktiengesellschaft | Tilting/oscillating roof window with counterbalance |
CN1137306A (en) * | 1993-12-10 | 1996-12-04 | V·卡恩·拉斯马森工业公司 | Window, particularly for installation in inclined roof surface |
CN101263272A (en) * | 2005-09-15 | 2008-09-10 | Vkr控股公司 | A lifting device for a roof window |
-
2017
- 2017-11-24 DK DKPA201770886A patent/DK180500B1/en active IP Right Grant
-
2018
- 2018-11-26 PL PL18812047T patent/PL3714123T3/en unknown
- 2018-11-26 CN CN201880075483.8A patent/CN111386376B/en active Active
- 2018-11-26 WO PCT/DK2018/050309 patent/WO2019101278A1/en active Search and Examination
- 2018-11-26 EP EP18812047.1A patent/EP3714123B1/en active Active
- 2018-11-26 HU HUE18812047A patent/HUE057096T2/en unknown
- 2018-11-26 ES ES18812047T patent/ES2903169T3/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0408655A1 (en) * | 1988-04-08 | 1991-01-23 | Nygaard Lena Eklund Legal Repr | A window, especially for installation in an inclined roof. |
US5070649A (en) * | 1988-04-08 | 1991-12-10 | V. Kann Rasmussen Industri A/S | Window, especially for installation in an inclined roof |
CN1137306A (en) * | 1993-12-10 | 1996-12-04 | V·卡恩·拉斯马森工业公司 | Window, particularly for installation in inclined roof surface |
EP0679775A1 (en) * | 1994-04-26 | 1995-11-02 | ROTO FRANK Aktiengesellschaft | Tilting/oscillating roof window with counterbalance |
CN101263272A (en) * | 2005-09-15 | 2008-09-10 | Vkr控股公司 | A lifting device for a roof window |
Also Published As
Publication number | Publication date |
---|---|
PL3714123T3 (en) | 2022-02-28 |
DK180500B1 (en) | 2021-06-01 |
CN111386376A (en) | 2020-07-07 |
EP3714123B1 (en) | 2021-11-10 |
DK201770886A1 (en) | 2019-06-12 |
ES2903169T3 (en) | 2022-03-31 |
EP3714123A1 (en) | 2020-09-30 |
HUE057096T2 (en) | 2022-04-28 |
WO2019101278A1 (en) | 2019-05-31 |
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