EP1686227A2 - Transmission par chaîne pour mouvoir des fenêtres, des cadres basculants ou similaires - Google Patents

Transmission par chaîne pour mouvoir des fenêtres, des cadres basculants ou similaires Download PDF

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Publication number
EP1686227A2
EP1686227A2 EP20060100749 EP06100749A EP1686227A2 EP 1686227 A2 EP1686227 A2 EP 1686227A2 EP 20060100749 EP20060100749 EP 20060100749 EP 06100749 A EP06100749 A EP 06100749A EP 1686227 A2 EP1686227 A2 EP 1686227A2
Authority
EP
European Patent Office
Prior art keywords
chain
casing
box
actuator according
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20060100749
Other languages
German (de)
English (en)
Inventor
Anna Gaggero
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1686227A2 publication Critical patent/EP1686227A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/02—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
    • E05F11/04—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables
    • E05F11/06—Man-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
    • 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
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/619—Power-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
    • 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
    • E05Y2201/10—Covers; Housings
    • 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
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/656—Chains
    • 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
    • E05Y2201/71—Toothed gearing
    • E05Y2201/722—Racks
    • E05Y2201/724—Flexible
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/74—Specific positions
    • E05Y2800/742—Specific positions abnormal
    • 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

Definitions

  • the present invention relates to a chain actuator for moving windows, tilting frames or the like, of the type comprising a box-like casing, a chain, means for guiding said chain intended to help in defining a path for said chain inside said box-like casing, said path leading outside through an opening formed in said box-like casing, means for moving said chain between a retracted position where the chain is prevalently housed inside the box-like casing and an extended position where the chain is prevalently outside the box-like casing.
  • Actuators of this type are known for example by the Italian patent IT01291433.
  • Some types of prior art actuators allow to automatically open and close the shutter to which they are applied, however they do not provide safety mechanisms allowing to firmly stop the shutter in a fixed position when it is necessary.
  • they are electronic control systems able to move the shutter in various manners and therefore also in fixed safety positions, but only at operating conditions of the electronic control that is till the electronic control is in operation. If the electronic control is not more reliable, for example due to an excessive increase in temperature due to a fire, the movement of the shutter to which the actuator is associated will become correspondingly unpredictable, that is after the correct control for opening the shutter in order to remove fumes in a room due to a fire the shutter could be involuntarily controlled as to be closed due to a wrong operation of the electronic control since a limit temperature threshold has been exceeded.
  • the present invention object is to provide an actuator overcoming prior art drawbacks and particularly suitable to be used to move frames while guaranteeing safety as greatest as possible in the case of fire risk.
  • the invention achieves its object by providing a chain actuator of the type described hereinbefore wherein means for guiding the chain inside the box-like casing comprise guiding inserts that are capable of being deformed depending on to temperature, said guide inserts defining at least a first and at least a second path for the chain depending on temperature.
  • the actuator comprises an electronic control mechanism able to control the opening of the frame to which it is associated when temperature reaches a warning level lower than the one at which guide inserts begin to get deformed.
  • the chain has links with such a coupling profile to allow a pretension of the chain in a direction opposite to the one according to which the chain coils up on itself inside the box-like casing.
  • the pretension determined by the inclination of the contact between the end and links allows to achieve a stability of the chain in compressive direction particularly in case of fire, but also during normal use when the frame has to be kept opened.
  • the invention relates to a frame controlled for its opening/closing by a chain actuator between a position of maximum opening with the chain completely extended and a position of complete closure with the chain substantially retracted inside the box-like casing.
  • a chain actuator for moving windows, tilting frames or the like, of the type comprising a box-like casing, a chain, means for guiding said chain intended to help in defining a path of said chain inside said box-like casing, said path leading outside through an opening formed in said box-like casing, means for moving said chain between a retracted position where the chain is prevalently housed inside the box-like casing and an extended position where the chain is prevalently outside the box-like casing, means for moving the chain comprise an electric motor connected by means of mechanical transmission means to a pinion to which said chain is coupled.
  • Mechanical transmission means particularly comprise a gear reduction unit. These are composed of a gear wheel upon which a worm screw coupled to the motor shaft is engaged, said gear wheel being rotatably supported by a bracket that can be secured to the motor by means of screw tightening means.
  • the worm screw is coupled to the motor shaft by a thrust bearing riveted on an end of the worm screw, said bearing being supported by a collar obtained inside the bracket supporting the gear wheel such that, when the bracket is secured to the motor, the axial movement moving away the worm screw from the motor is prevented.
  • the chain actuator 1 comprises a box-like casing 101, tipically made of aluminium or an equivalent metal material, having an elongated shape within which a chain 2 is guided so as to slide by guides 201 and guide inserts 301, 301' along a path leading outside through an opening 401 formed on a longitudinal wall.
  • the chain 2 takes up a delimited position of the box-like casing 101, since the opposite portion is occupied by means 4 for moving the chain.
  • These comprise an electric motor 104 connected by a mechanical transmission to a pinion 701 to which the chain 2 is coupled.
  • Guides 201 help in arranging the chain 2 with branch or branches inside the box-like casing 101 substantially parallel to longitudinal walls of the box-like casing when pulling and retracting.
  • guiding inserts 301, 301' typically made of plastic material, arranged at the opening 401, when normally operating, that is for temperature values lower than a certain threshold, typically 100 °C, allow to deflect gradually and with a curved path the arrangement of the chain towards the opening 401 from the direction substantially parallel to longitudinal walls of the box-like casing 101 to a direction substantially transversal and particularly substantially orthogonal to longitudinal walls and viceversa.
  • a certain threshold typically 100 °C
  • Inner walls of the box-like casing 101 intended to house the chain 2 have a substantially U shape about which the chain 2 is arranged in a retracted position by the spiral coiling up when pulling and retracting about a pin (not shown in figure) to which the chain end 501 is associated.
  • Advantageously guides 201 comprise a peripheric guide 601, 601' made of antifriction material, typically plastic material, abutting the corresponding longitudinal inner wall of the box-like casing 101.
  • the guide 601, 601' allows to make easy the retraction of the chain 2, typically made of stainless steel, inside the box-like casing 101 and to reduce the sliding noise caused by the contact between it and the inside of the box-like casing.
  • the chain 2 comprises an anchoring end 102 for connection to the body 3 to be moved, typically a window or door shutter.
  • the end 102 has a substantially cylindrical shape intended to receive a screw 203 for fastening said body 3 to be moved by means of an anchoring member 103 fastened to said body 3 for example by means of screws and having also through holes for housing the two ends of the screw 203.
  • the end 102 of the chain 2 has an extension prolongation having a complementary profile 202 hooking to an end link 302 of the chain 2.
  • the hooking profile 202 has such an inclination with respect to the complementary profile of the link 302 that the link 302 is arranged in a position hooking the end 102 with inclined longitudinal axis, for example at 2° with respect to the normal to the axis of the cylinder 102, causing a pretension as indicated by arrow in figure 4.
  • mechanical transmission means transmitting movement of electric motor 104 to pinion 701 to which the chain 2 is associated comprise a gear wheel (not shown in figure) upon which a worm screw 304 coupled to the shaft 404 of the motor 104 is engaged in addition to a gear reduction unit 204 according to prior art, such as the one shown in figure 6.
  • the gear wheel is rotatably supported by a bracket 504, for example made of plastic material, that can be secured to the motor 104 by screw tightening.
  • the worm screw 304 is coupled to the shaft 404 of the motor 104 by means of a thrust bearing 604 riveted on one end of the worm screw 304.
  • the bearing 604 is supported by a collar obtained inside the bracket 504 supporting the gear wheel such that, when the bracket 504 is secured to the motor 104, the axial movement moving away the worm screw 304 from the motor 104 is prevented. Moreover between the thrust bearing 604 and the motor 104 there is provided a spacer 704 preventing the axial movement approaching the worm screw 304 to the motor 104 in order to prevent axial loads exerted by the worm screw 304 on electric motor 104 above all when reaching the stop of the chain 2.
  • the thrust bearing supports axial loads exerted by the worm screw on the motor.
  • the fact of mounting it directly on the worm screw and that is on the head side thereof faced towards the motor allows to economically manufacture the thrust bearing also as regards its mounting in the kinematic chain.
  • the fastening to the worm screw occurs by riveting, that is permanent set and so it is very quick, fast and cheap.
  • the fact of manufacturing the stop of the axial withdrawning movement for the worm screw from the shaft of the electric motor as a separated member that is secured to the casing and functioning also as a rotation supporting member of the first gear cooperating with the worm screw is a considerable structural simplification limiting manufacturing costs and allowing to adjust the positioning of said stop.
  • the worm screw is the member the more stressed of the kinematic chain and whose load inevitably discharges on the motor shaft and it has a considerable axial component of said motor axis, so the fact of providing the thrust bearing and the opposite stop allows to limit loads on the axis of the motor discharging them at least partially on the stop and on the thrust bearing.
  • said arrangement allows to very quickly replace worn parts and particularly the worm screw having the thrust bearing integrated and the axial stop opposite to the thrust bearing, that is cooperating with the head side of the worm screw opposite to the one faced towards the motor and limiting the translation effect towards the outside from the axis of the motor caused by the worm screw engaged with the first gear wheel.
  • the stop can be composed of a quality material having a low coefficient of friction avoiding to use said material for other parts of the casing.
  • the actuator according to the invention comprises electronic means for adjusting and controlling the activation/disactivation of means for moving the chain 4.
  • These electronic means comprise at least a positioning sensor of the chain 2 intended to produce a stop signal and a microcontroller sensitive to said signal.
  • Microcontroller is arranged for controlling the movement of the chain 2 by means of the electric motor 104 between two extreme limit positions.
  • the actuator further comprises a temperature sensor intended to produce a signal depending on temperature.
  • Microcontroller is arranged to read said signal and to move the chain 2 in the most extended position outside the box-like casing 101 when the signal takes values greater than a certain threshold.
  • the threshold corresponds to temperature values lower than melting temperature of guiding inserts 301, 301' so that the stop of chain 2 caused by melting of guiding inserts 301, 301' occurs when the chain is completely extended. So in case of fire it is possible to guarantee a firm opening of frame or frames 3 to which actuator or actuators 1 according to the invention are applied, guaranteeing a suitable and lasting ventilation of premises for exahusting fumes.
  • the pin for fastening an end of the chain to the box-like casing to be slidable so making more easy the coming out and retracting of the chain such as in Italian patent application PD2001A000136. All this without departing from the teaching mentioned above and claimed below.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Transmission Devices (AREA)
  • Gear Transmission (AREA)
EP20060100749 2005-01-31 2006-01-24 Transmission par chaîne pour mouvoir des fenêtres, des cadres basculants ou similaires Withdrawn EP1686227A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITSV20050005 ITSV20050005A1 (it) 2005-01-31 2005-01-31 Attuatore a catena per la movimentazione di finestre infissi basculanti o simili

Publications (1)

Publication Number Publication Date
EP1686227A2 true EP1686227A2 (fr) 2006-08-02

Family

ID=36277606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060100749 Withdrawn EP1686227A2 (fr) 2005-01-31 2006-01-24 Transmission par chaîne pour mouvoir des fenêtres, des cadres basculants ou similaires

Country Status (2)

Country Link
EP (1) EP1686227A2 (fr)
IT (1) ITSV20050005A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944448A1 (fr) * 2007-01-12 2008-07-16 D+H Mechatronic AG Dispositif de fixation destiné à la fixation d'une extrémité d'un moyen de transmission de puissance sur un élément de construction mobile
EP2141316A1 (fr) * 2008-06-30 2010-01-06 Nekos Srl Amélioration sur des actionneurs
WO2016113286A1 (fr) * 2015-01-13 2016-07-21 Aumüller Aumatic GmbH Entraînement à chaîne en poussée
WO2020232649A1 (fr) * 2019-05-21 2020-11-26 阿法门窗控制系统(杭州)有限公司 Dispositif d'ouverture-fermeture à chaîne coudée et son procédé d'utilisation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944448A1 (fr) * 2007-01-12 2008-07-16 D+H Mechatronic AG Dispositif de fixation destiné à la fixation d'une extrémité d'un moyen de transmission de puissance sur un élément de construction mobile
EP2141316A1 (fr) * 2008-06-30 2010-01-06 Nekos Srl Amélioration sur des actionneurs
WO2016113286A1 (fr) * 2015-01-13 2016-07-21 Aumüller Aumatic GmbH Entraînement à chaîne en poussée
WO2020232649A1 (fr) * 2019-05-21 2020-11-26 阿法门窗控制系统(杭州)有限公司 Dispositif d'ouverture-fermeture à chaîne coudée et son procédé d'utilisation

Also Published As

Publication number Publication date
ITSV20050005A1 (it) 2006-08-01

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