EP1353031B1 - Compact actuator - Google Patents

Compact actuator Download PDF

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Publication number
EP1353031B1
EP1353031B1 EP20020007883 EP02007883A EP1353031B1 EP 1353031 B1 EP1353031 B1 EP 1353031B1 EP 20020007883 EP20020007883 EP 20020007883 EP 02007883 A EP02007883 A EP 02007883A EP 1353031 B1 EP1353031 B1 EP 1353031B1
Authority
EP
European Patent Office
Prior art keywords
chain
actuator according
nut
guide surface
spindle
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 - Fee Related
Application number
EP20020007883
Other languages
German (de)
French (fr)
Other versions
EP1353031B2 (en
EP1353031A1 (en
Inventor
Jakob Rytter Nielsen
Dan Kristoffersen
Jan Norup
Jens Jorren Sorensen
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
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Filing date
Publication date
Family has litigation
Application filed by VKR Holding AS filed Critical VKR Holding AS
Priority to EP02007883A priority Critical patent/EP1353031B2/en
Publication of EP1353031A1 publication Critical patent/EP1353031A1/en
Publication of EP1353031B1 publication Critical patent/EP1353031B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=28051755&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1353031(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of EP1353031B2 publication Critical patent/EP1353031B2/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/36Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing comprising a flexible member, e.g. chains
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/10Actuating mechanisms for bars
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/619Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using flexible or rigid rack-and-pinion arrangements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/02Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
    • E05F11/04Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables
    • E05F11/06Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables in guide-channels
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/02Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
    • E05F11/34Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with screw mechanisms
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/10Covers; Housings
    • E05Y2201/11Covers
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/60Suspension or transmission members; Accessories therefore
    • E05Y2201/622Suspension or transmission members elements
    • E05Y2201/644Flexible elongated pulling elements; Members cooperating with flexible elongated pulling elements
    • E05Y2201/656Chains
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/60Suspension or transmission members; Accessories therefore
    • E05Y2201/622Suspension or transmission members elements
    • E05Y2201/71Toothed gearing
    • E05Y2201/72Planetary gearing
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/60Suspension or transmission members; Accessories therefore
    • E05Y2201/622Suspension or transmission members elements
    • E05Y2201/71Toothed gearing
    • E05Y2201/722Racks
    • E05Y2201/724Flexible
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40Mounting location; Visibility of the elements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40Mounting location; Visibility of the elements
    • E05Y2600/41Concealed
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132Doors
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/148Windows

Description

  • The present invention relates to an actuator for moving an object from one position to a second position and vice versa and if desired any position therebetween.
    Typically, such actuators are used to control the position of a window sash such as in bottom-hung, top-hung or side-hung windows, sky lights and of doors such as ventilation doors.
  • BACKGROUND ART
  • Conventional actuators of this type as known from e.g. AU B1-51 808/79 use a chain, i.e. a chain storable within a housing and with the chain being extended from and retracted into the housing by means of a rotatable drive sprocket having a toothed relation with the chain.
  • EP-B-0 708 218 discloses a chain actuator according to the preamble of claim 1. The housing of the actuator is provided with separate guide channels for the nut of the spindle and for the chain. The two channels are separated by a wall provided with a longitudinal slit through which a foot of the nut protrudes to engage the inner end of the chain.
  • In these known actuators, the cross-sectional area of the housing is about ten times the cross-sectional area of chain.
  • Both above mentioned actuator designs claim though to be compact. They are however too bulky to fit into a hollow profile of industrially available window frames without machining a part of the window frame to create space for the actuator.
  • Consequently, these actuators are either mounted on top of the master window frame or window sash, or alternatively, they are build in the master window frame or window sash after a space has been machined in either of these window parts. By machining such a space, the stiffness/stability of the profile in question, and consequently, the stability of the window frame as such is sometimes significantly reduced.
  • A window sash or a window frame usually consists of an inner frame build up of extruded profiles and an outer frame build up of extruded profiles. The inner frame and the outer frame are separated by an insulation frame. Machining a space for the prior art actuators usually results in removing locally the insulation frame, thus creating a thermal break between the inner and outer frames reducing the insulation capacity of the overall window significantly.
  • A problem in providing compact actuators has been though the aspect that the actuator must be able to deliver a substantial driving force. Thus, the elements of the actuator have to have sufficiently large dimensions to obtain the required strength and stability of the actuator, e.g. simply reducing the cross-sectional area of the chain is not a viable alternative.
  • DISCLOSURE OF THE INVENTION
  • On this background, it is an object of the present invention to provide an actuator of the kind referred to initially, that has a minimal cross-sectional area whilst being able to provide a high driving force.
  • This object is achieved in accordance with claim 1 by providing an actuator comprising a longitudinal housing provided on one of its sides with a chain exit aperture, a spindle extending in said longitudinal housing, a motor driving directly or indirectly said spindle, a nut in threaded engagement with said spindle, said chain being connected to said nut, said chain extending at least partially in said longitudinal housing and being guided by a guide surface in said longitudinal housing towards said chain exit aperture, said chain being bendable in one plane, wherein said chain is arranged in said housing beside said spindle viewed in a direction parallel to said one plane.
  • Preferably, one end of the chain is connected to the nut and the other end is intended for connection to an object to be moved.
  • The guide surface may be curved to facilitate a change in direction of the chain.
  • The nut may be guided by at least one guide rail extending parallel to the longitudinal axis and protruding into a groove in the nut.
  • Preferably, the chain and the nut are guided by one and the same guide rail.
  • The actuator may comprise a first substantially planar guide surface extending parallel with the longitudinal axis and extending substantially perpendicular to the exit direction of the chain, a second substantially planar guide surface extending parallel to the first guide surface, the chain and the nut being arranged between the first guide surface and the second guide surface and the distance between the first guide surface and the second guide surface being substantially equal to the width of the chain, and preferably, the distance between two parallel side surfaces of the nut is substantially equal to the chain width.
  • The first and second guide surfaces may be formed by two strips of low friction material, preferable low friction plastic material such as nylon, that are inserted in the longitudinal housing.
  • Preferably, the guide rail is formed by a longitudinally extending protrusion on the first or second guide surface.
  • The output shaft of the motor is preferably substantially parallel with the longitudinal axis.
    The actuator is preferably comprising a reduction gearing is connected to the output shaft of the motor, the reduction gearing, preferably a planetary gearing, having an output shaft that is substantially parallel with the longitudinal axis.
  • The reduction gearing and the spindle are preferably not concentric, whereby the spindle and the output shaft are mechanically connected by a flexible shaft, or by a straight gearing or a by double universal joint.
  • Further objects, features, advantages and properties of the actuator according to the invention will become apparent from the detailed description.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • In the following detailed portion of the present description, the invention will be explained in more detail with reference to the exemplary embodiments shown in the drawings, in which
    • Fig. 1a is a diagrammatic cross-sectional view of a main frame and a sash of a window of in which an actuator according to a preferred embodiment of the invention is mounted,
    • Fig. 1b and 1c illustrate the movement of the sash to an open position,
    • Fig. 2 is a perspective opened up view of a first preferred embodiment of the actuator according to the invention,
    • Fig. 2a is an enlarged detail of Fig. 2,
    • Fig. 3 is a diagrammatic partially opened up side view of of the first preferred embodiment of the actuator according the invention,
    • Fig. 4 is a perspective diagrammatic view of a detail of the first preferred embodiment of the actuator according to the invention,
    • Fig. 5 is another perspective diagrammatic view of a detail of the first preferred embodiment of the actuator according to the invention,
    • Fig. 6 is a diagrammatic partially opened up side view of a detail of the first preferred embodiment of the actuator according the invention,
    • Fig.7 is a perspective opened up view of a second preferred embodiment of the actuator according to the invention,
    • Fig. 8 is a diagrammatic partially opened up side view in detail of the second preferred embodiment of the actuator according the invention,
    • Fig. 9 is another side view of the second preferred embodiment of the actuator according to the invention with the exit guide in the retracted position,
    • Fig. 10 is the same side view as Fig. 9 with the exit guide in the extended position,
    • Fig. 11, is a perspective diagrammatic view in detail of the second preferred embodiment of the actuator with the exit guide in the retracted position, and
    • Fig. 12 is the same perspective diagrammatic view in detail as Fig. 11 actuator with the exit guide in the extended position.
    DETAILED DESCRIPTION
  • In the following detailed description, the invention will be described by the preferred embodiments. With reference to Fig. 1, the actuator 1 is shown mounted inside the extruded profile 10 that forms one side of a window main frame 8. The main frame 8 holds a bottom hung sash 9 with a top profile 11 opposite the pivots. The extremity of the chain 12 extending from the actuator 1 is fastened to the top profile 11 of the sash 9 by means of a bracket 14. Fig. 1b and 1c illustrate the movement of the sash 9 to an open position.
  • As shown in more detail in Figs. 2 to 6, the actuator 1 comprises a longitudinal housing 20 formed by a tube with a substantially squared cross-section. The housing is provided on one of its sides with a chain exit aperture 21 through which the chain extends from the inside of the housing 20 to the window sash 9. The extremities of the housing 20 are sealed by end caps 22,23. End cap 22 is provided with a cylindrical aperture 25 receiving the extremity of a spindle 27 extending longitudinally inside the housing 20. The spindle 27 is provided with a thread. The opposite extremity of the spindle 27 is received in a cylindrical aperture 31 in a first extremity 33 of a frame 30 located inside the housing 20.
  • The cross-section of the frame 30 is substantially equal to the inside of the housing 20, so that the frame 30 is retained in the housing 20 in a stable manner. The frame 30 is a machined part, preferably made of aluminum, and defines an outer curved guide 34 with a guide surface in the form of an arc that extends over an angle of 90° for guiding the chain 12 towards the chain exit aperture 21. The frame 30 is further provided with a transversely extending guide channel 36 for an exit guide 70. The frame 30 further comprises a bridge 37 spanning between the first extremity 33 and a second extremity 38 of the frame 30. Between the opposite ends of the bridge 37, two parallel slits 43,44 facing one another are provided for receiving a print board 50 with the electric control of the actuator 1. The second extremity 38 is provided with a cylindrical aperture 39 for receiving an output shaft 61 of a planetary reduction gear 60. The reduction gear 60 is driven by a DC motor 62. The DC motor 62 and its output shaft (not shown) are concentrically located inside the housing 20. The planetary reduction gear 60, and its output 61 shaft are also concentrically located within the housing 20. The spindle 27 is however not located concentrically in the housing 20. The output 61 shaft is therefore connected to the spindle 27 by a double universal joint 66 extending between the opposite extremities 33,38 of the frame 30.
  • A movable exit guide 70 is provided in the transversely extending guide channel 36 adjacent the chain exit aperture 21. The exit guide 70 is provided with a chain guide surface 71 extending substantially perpendicular to the longitudinal axis of the housing 20 for ensuring that the chain 12 leaves the housing 20 as a substantially straight and rigid member. The chain guide 70 is movable between a retracted position in which it is substantially completely located inside the housing 20 and an extended position in which it extends from the housing 20 to guide the chain 12. A coil spring 72 is placed behind the exit guide 70 for urging the exit guide 70 to the extended position. When the chain 12 is retracting the sash 9 abuts with the exit guide 70 and forces it into the housing 20 until the sash 9 abuts with the master window frame 30. The exit guide 70 is provided on the side opposite to the outer curved guide 34 with a substantially T-shaped rail 73 that engages a corresponding shaped groove 74 in the frame 30. The T-shaped rail 73 guides the exit guide 70 in its translative movement between the retracted position and the extended position. This additional transverse guidance is advantageous because the extend of the transversely extending guide channel 36 at the side facing the outer curved guide 34 is relatively short.
  • A box shaped nut 80 is in treaded engagement with the thread of the spindle 27. The nut 80 has a rectangular cross-section (in a plane perpendicular to the spindle 27 axis), with a lesser extension and a larger extension. The larger extension is somewhat smaller that the corresponding inside width of the housing 20. The spindle bore in the nut 80 is located such that nut 80 extends asymmetrically in one direction from the spindle 27. As best shown in Fig. 2a, the asymmetrically extending part of the nut 80 is provided with a recess 81 for receiving the extremity of the chain 12. An anchor pin 82 extends over the recess 81 through the proximal link 83 of the chain 12 to secure it to the nut 80. The nut 80 is further provided with a groove 84 extending in the longitudinal direction of the housing 20. The chain 12 extends from the proximal link 83 in the longitudinal direction of the housing 20 adjacent the spindle 27 until it meets the curved outer guide 34.
  • The chain 12 and the nut 80 are guided inside the housing 20 by a first guide surface 90 and a second guide surface 91. The first and second guide surfaces 90,91 are formed by two respective strips 92,93 of nylon or other low friction material with approximately the same width as the inner dimension of the housing 20. The strips 92,93 rest with their rear surfaces on the inner surface of the housing 20. The thickness of the strips 92,93 is such that the distance between the first- and second guide surfaces 90,91 is substantially equal to the chain width, which is in turn substantially equal to the lesser extension of the nut 80. The chain 12 and the nut 80 are thus laterally supported in a first direction in the full range positions of the chain 12 to provide lateral stability for the spindle 27, nut 80 and chain 12.
  • The first guide strip 92 extends from the end cap 22 up to the chain exit aperture 21. The first guide surface 90 curves smoothly over a 90° angle towards the chain exit aperture 21 to form an inner curved guide 94. As best shown in Figs. 2 and 2a, the first guide strip 92 is further provided with longitudinally extending guide rail 96 protruding from the first guide surface 90. The guide rail 96 protrudes into the U-shaped links 85,86 of the chain 12, thus, giving it lateral support in a second direction. The guide rail 96 also protrudes into the groove 84 in the nut 80 and gives the nut 80 and consequently, also the spindle 27, lateral support in the second direction.
  • The chain 12 is build up of outer links 85 and inner links 86 which are interconnected by rivets 87. The outer and inner links 85,86 being U-shaped in cross-section and so made and arranged, that the chain 12 may be bended in one direction in a plane perpendicular to the rivets 87, for example, around the curved inner guide 94, but in the opposite direction, it cannot be bended beyond an arrangement in which the links are in a substantially straight line.
  • By arranging the chain 12 adjacent the spindle 27 seen in the plane in which the chain 12 can be bend, i.e. a plane extending perpendicular to the rivets 87, both the chain 12 and the spindle 27 can be located in a single guide channel, thus, rendering the actuator 1 extremely compact.
  • With reference to Figs. 7 to 12 a second preferred embodiment of the actuator 1 is shown. The actuator is basically build up the same way with as the actuator according to the first embodiment described above. The linear drive means in this embodiment comprises a worm 90, i.e. a revolving threaded screw. The worm 90 is driven by the DC motor 62 via the reduction gear 60 and the double universal joint 66. An extremity of the worm extends through a cylindrical aperture 31 in frame 30 and is connected to the double joint 66.
  • The chain 12 is provided with teeth 91 formed by extensions of the rivets 86. As best seen in Fig 8 the teeth 91 mesh with the thread on the worm 90. An elongated block 93 extends from the end cap 22 to the worm 90. The elongated block serves as a guide for the chain 12 and is provided at its end that faces the worm 90 with a cylindrical aperture 97 in which an extremity of the worm 90 is received.
  • The frame 30 is provided with a slot 94 for receiving a movable exit guide 70'. A pivot pin 95 extends across the slot 94 and through a bore in the moveable exit guide 70'. The movable exit guide 70' is movable by rotation about the pivot pin 95 between a retracted position in which it is substantially completely located in the housing 20 (cf. Figs. 9 and 11) and an extended position in which it extends from the housing 20 (cf. Figs. 10 and 12) to support the chain 12. The movable chain guide 7' is urged by a spring 72' to the extended position in which a guide surface 71' ensures that the chain 12 leaves the housing 20 as a substantially straight rigid member.
  • Alternatively, the linear drive means may be formed by a hydraulic or pneumatic cylinder (not shown). It is also possible to use a tooth belt (not shown) provided with teeth on both sides of the belt. The belt extends along a part of the length of the chain, whereby the teeth on the outer side of the belt are in engagement with the chain.
  • The invention as described here allows the construction of an actuator with a ratio between cross-sectional surface of the chain and the cross-sectional surface of the housing which is improved by about a factor two.
    The actuator according to the invention is therefore substantially more compact than any of the prior art actuators, and can consequently, be mounted inside window profiles without machined additional space into such a window profile.
  • Although the present invention has been described in detail for purpose of illustration, it is understood that such detail is solely for that purpose, and variations can be made therein by those skilled in the art without departing from the scope of the invention.
  • Merely as an example, a non-exclusive list of possible variations to the preferred embodiment is listed here:
    • the spindle 27 may be provided with a normal thread, or with a spiral groove for recirculating ball engagement with the nut 80,
    • the housing 20 does not have to be squared in cross-section, it may also be rectangular, hexagonal, octagonal, round, or any other suitble shape, in this case the cross-sectional shape of the nut 80, the frame 30 and of the guide strips 92,93 is simply adjusted to the cross-sectional shape of the housing 20,
    • the housing does not have to be tubular, it may also be produced as a box shaped housing, by assembling two or more housing-halves, made by metal casting, plastics moulding, or assembly of strip material,
    • the chain 12 does not have to be build up of U-shaped links 85,86, the links may just as well be formed by two opposite plates, or alike metal or moulded plastic links,
    • the DC-motor 62 may be replaced by an AC motor, a pneumatic motor or any other suitable source of rotational power,
      the planetary gearing 60 may be replaced by any other type of reduction gear, i.e. any gearboxes with striate gears, or helical gears that fit in the housing 20,
      the teeth 91 on the chain 12 do not have to be formed as extensions of the rivets 85,86, the teeth could also be formed by e.g. protrusions of the links,
    • the connection between the output shaft 61 of the reduction gearing 60 and the spindle 27 does not have to be formed by a double joint 66, it may be replaced by a straight gearing or a flexible shaft.
  • Thus, while the preferred embodiments of the devices and methods have been described in reference to the environment in which they were developed, they are merely illustrative of the principles of the invention. Other embodiments and configurations may be devised without departing from the scope of the appended claims.

Claims (12)

  1. An actuator (1) comprising a longitudinal housing (20) provided on one of its sides with a chain exit aperture (21), a spindle (27) extending in said longitudinal housing (20), a motor (62) driving directly or indirectly said spindle (27), a nut (80) in threaded engagement with said spindle (27), said chain (12) being connected to said nut (12), said chain (12) extending at least partially in said longitudinal housing (20) and being guided by a guide surface (34) in said longitudinal housing (20) towards said chain exit aperture (21), said chain (12) being bendable in one plane, characterized in that said chain (12) is arranged in said housing (20) beside said spindle (27) viewed in a direction parallel to said one plane.
  2. An actuator according to claim 1, wherein one end of said chain (12) is connected to said nut (80) and the other end is intended for connection to an object (10) to be moved.
  3. An actuator according to claim 1 or 2, wherein said guide surface (34) is curved.
  4. An actuator according to any of claims 1 to 3, wherein said chain (12) is guided by at least one guide rail (96) extending parallel to said longitudinal axis and protruding into said chain (12).
  5. An actuator according to claim 4, wherein said nut (80) is guided by at least one guide rail (96) extending parallel to said longitudinal axis and protruding into a groove (84) in said nut (80).
  6. An actuator according to claim 5, wherein said chain (12) and said nut (80) are guided by one and the same guide rail (96).
  7. An actuator according to any of claims 1 to 6, further comprising a first substantially planar guide surface (90) extending parallel with said longitudinal axis and extending substantially perpendicular to the exit direction of said chain, a second substantially planar guide surface (91) extending parallel to said first guide surface, said chain (12) and said nut (80) being arranged between said first guide surface (90) and said second guide surface (91) and the distance between said first guide surface and said second guide surface being substantially equal to the width of said chain (12) and preferably the distance between two parallel side surfaces of said nut (80) is substantially equal to the chain width.
  8. An actuator according to claim 7, in which said first and second guide surfaces (90,91) are formed by two strips of low friction material, preferable low friction plastic material such as nylon, that are inserted in said longitudinal housing (20).
  9. An actuator according to claim 7 or 8, wherein said guide rail (96) is formed by a longitudinally extending protrusion on said first or second guide surface (90,91).
  10. An actuator according to any of claims 1 to 9, in which the output shaft of said motor (62) is substantially parallel with said longitudinal axis.
  11. An actuator according to claim 10, in which a reduction gearing (60) is connected to the output shaft of said motor (62), said reduction gearing, preferably a planetary gearing, having an output shaft (61) that is substantially parallel with said longitudinal axis.
  12. An actuator according to claim 11, in which said output shaft (61) of said reduction gearing (60) and said spindle (27) are not concentric, whereby said spindle (27) and said output (61) shaft are mechanically connected by either a flexible shaft, a straight gearing or a double universal joint (66).
EP02007883A 2002-04-09 2002-04-09 Compact actuator Expired - Fee Related EP1353031B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02007883A EP1353031B2 (en) 2002-04-09 2002-04-09 Compact actuator

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP02007883A EP1353031B2 (en) 2002-04-09 2002-04-09 Compact actuator
DK02007883T DK1353031T4 (en) 2002-04-09 2002-04-09 compact actuator
AT02007883T AT347012T (en) 2002-04-09 2002-04-09 Compact actuator
DE2002616414 DE60216414T3 (en) 2002-04-09 2002-04-09 Compact actuator
DE20221581U DE20221581U1 (en) 2002-04-09 2002-04-09 Actuator for moving object from one position to another has linear drive mechanism, and movable exit guide adjacent chain exit aperture and provided with chain guide surface extending in the exit direction of chain

Publications (3)

Publication Number Publication Date
EP1353031A1 EP1353031A1 (en) 2003-10-15
EP1353031B1 true EP1353031B1 (en) 2006-11-29
EP1353031B2 EP1353031B2 (en) 2010-05-26

Family

ID=28051755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007883A Expired - Fee Related EP1353031B2 (en) 2002-04-09 2002-04-09 Compact actuator

Country Status (4)

Country Link
EP (1) EP1353031B2 (en)
AT (1) AT347012T (en)
DE (2) DE60216414T3 (en)
DK (1) DK1353031T4 (en)

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DE10346861B4 (en) * 2003-10-09 2015-03-05 Stg-Beikirch Industrieelektronik + Sicherheitstechnik Gmbh & Co. Kg A stay mechanism
DE102005006314A1 (en) * 2005-01-15 2006-07-27 SCHÜCO International KG Drive device for a window or a door
FR2909407B1 (en) * 2006-12-01 2009-01-09 Window Automation Industry Srl Electromechanical actuator for manufacturing an opener and closure installation comprising such actuator
NL1033845C2 (en) * 2007-05-14 2008-11-18 Ubbink Bv Framework rotating device, has elongated main housing attached to frame, attachment part attached to wing of window, and rigid pressure back chain including end connected to mounting part
DK2034218T3 (en) * 2007-08-28 2012-07-16 Vkr Holding As Push-pull chain and actuator
NL2002930C2 (en) * 2009-05-26 2010-11-30 Vaculux B V Window device, method for manufacturing such a window device and method for connecting a translucent element to a flat roof.
DE102010002817C5 (en) * 2010-03-12 2016-06-09 Geze Gmbh Drive a window, a flap or the like
DE102012203735C5 (en) * 2012-03-09 2018-10-31 Geze Gmbh Drive for a window or the like, and a method for mounting the drive
DE102016000566A1 (en) 2016-01-20 2017-07-20 Iwis Antriebssysteme Gmbh & Co. Kg Actuator with hollow screw
DE102016000568A1 (en) 2016-01-20 2017-07-20 Iwis Antriebssysteme Gmbh & Co. Kg Actuator with a back-stiff chain
CN105822172A (en) * 2016-04-28 2016-08-03 合肥美德嘉门窗科技有限责任公司 Novel hidden type window opener structure
DE102017116435A1 (en) 2017-07-20 2019-01-24 Iwis Antriebssysteme Gmbh & Co. Kg Linear drive with back rigid chain
DE102018104777A1 (en) 2018-03-02 2019-09-05 Iwis Antriebssysteme Gmbh & Co. Kg Actuator with back stiff chain
DE102018104768A1 (en) 2018-03-02 2019-09-05 Iwis Antriebssysteme Gmbh & Co. Kg Actuator with back stiff chain

Family Cites Families (6)

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DE714768C (en) 1937-06-11 1941-12-06 George Lewis Curtis Fluegelaufhaengung on windows or doors
AU516364B2 (en) * 1979-10-15 1981-05-28 Whitco Pty. Ltd. Window winder
DE4407276B4 (en) 1994-03-04 2005-04-28 Geze Gmbh Ausstellvorrichtung for a wing of a window, ventilation flap, dome light, door or the like and drive for moving two components relative to each other
DE4437250A1 (en) * 1994-10-18 1996-04-25 Heinrich Schlueter Device for executing the closing and opening process of a tilt window
DK135995A (en) * 1995-12-01 1997-06-02 Rasmussen Kann Ind As Operator with at least two display elements for opening and closing swivel windows
DE29604692U1 (en) 1996-03-15 1996-05-02 Winkhaus Fa August Device for deflecting a rotatably arranged structural unit, in particular a window

Also Published As

Publication number Publication date
EP1353031B2 (en) 2010-05-26
DE60216414T2 (en) 2007-09-20
AT347012T (en) 2006-12-15
DK1353031T3 (en) 2007-03-26
DE20221581U1 (en) 2006-06-08
DE60216414T3 (en) 2010-09-09
EP1353031A1 (en) 2003-10-15
DE60216414D1 (en) 2007-01-11
DK1353031T4 (en) 2010-07-12

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