EP0747559B1 - Winch - Google Patents

Winch Download PDF

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Publication number
EP0747559B1
EP0747559B1 EP96401174A EP96401174A EP0747559B1 EP 0747559 B1 EP0747559 B1 EP 0747559B1 EP 96401174 A EP96401174 A EP 96401174A EP 96401174 A EP96401174 A EP 96401174A EP 0747559 B1 EP0747559 B1 EP 0747559B1
Authority
EP
European Patent Office
Prior art keywords
axis
rotation
winch
pawl
arm lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96401174A
Other languages
German (de)
French (fr)
Other versions
EP0747559A1 (en
Inventor
Erhard Rothgangl
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0747559A1 publication Critical patent/EP0747559A1/en
Application granted granted Critical
Publication of EP0747559B1 publication Critical patent/EP0747559B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C2/00Fire prevention or containment
    • A62C2/06Physical fire-barriers
    • A62C2/24Operating or controlling mechanisms
    • A62C2/246Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/247Operating or controlling mechanisms having non-mechanical actuators electric
    • 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
    • E05F15/70Power-operated mechanisms for wings with automatic actuation
    • E05F15/72Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
    • 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
    • E05F1/00Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/02Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/214Disengaging means
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/218Holders
    • E05Y2201/22Locks
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23Actuation thereof
    • E05Y2201/244Actuation thereof by manual operation
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23Actuation thereof
    • E05Y2201/246Actuation thereof by auxiliary motors, magnets, springs or weights
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404Function thereof
    • E05Y2201/422Function thereof for opening
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/46Magnets
    • E05Y2201/462Electromagnets
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/50Weights
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/60Suspension or transmission members; Accessories therefor
    • E05Y2201/622Suspension or transmission members elements
    • E05Y2201/644Flexible elongated pulling elements
    • E05Y2201/654Cables
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/60Suspension or transmission members; Accessories therefor
    • E05Y2201/622Suspension or transmission members elements
    • E05Y2201/658Members cooperating with flexible elongated pulling elements
    • E05Y2201/664Drums
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Type of wing
    • E05Y2900/148Windows

Definitions

  • the object of the invention is a winch intended in particular for close and open the mobile ventilation opening panels.
  • a winch containing a load-bearing structure to which is fixed in rotation of a stool whose axis is parallel to the fixing plane of the winch on the wall.
  • a cable which passes through a pulley system and is used to open and close the movable panel of the ventilation opening.
  • the drum is connected to a worm wheel coupled with a worm screw.
  • the axis of the worm is fixed in a bracket which can be tilted relative to the worm wheel.
  • the caliper is locked in the clutch position using a lever to an arm held by a flat spring.
  • To disengage the system we uses a two-arm lever locked in the clutch position by a second flat spring.
  • the clutch is released by overcoming the resistance of said second spring by the action on a push button manual.
  • the declutching can also take place under the action of a electromagnet, using an additional lever.
  • the invention proposes a new winch according to the part Characterizing of claim 1.
  • the winch according to the invention also contains a drum with coiled cable, drum housed in a carcass and driven by a worm wheel secured to it and coupled with a worm screw, fixed in a tilting stirrup and driven using a crank.
  • the caliper is held in the clutch position by means of a ratchet.
  • the essence of the solution according to the invention consists in that the declutching system is constituted by a lever with two arms, intended for manual or pneumatic action and whose axis of rotation belongs to the space limited by two planes parallel, perpendicular to the fixing surface of the winch and crossing one - the axis of rotation of the worm wheel, the other - the axis of inclination of the caliper.
  • the axis of rotation of the two-arm lever is preferably identical to the axis of rotation of the caliper.
  • the winch can have, as an option, in the declutching system, a one-arm lever intended for an electromagnetic action, located on a plane parallel to the main surface of the two-arm lever and having an axis of rotation identical to the axis screw wheel rotation
  • the two-arm lever releasing the pawl has a support element for pneumatic disengagement, an element capable of being pushed by the piston rod of the pneumatic cylinder whose cylinder is fixed to the bearing construction.
  • the two-arm lever also has a manual release element, located opposite the pneumatic release support element.
  • the lever with one arm has a fork recess on the side of the axis of rotation and the second end of the lever with one arm has a lug capable of working with a locking plate which constitutes the intermediate element between the lever with one arm and the electromagnet.
  • the locking plate is fixed in rotation on the support of the electromagnet, support fixed to the supporting construction, and has two perpendicular surfaces between them, one of which constitutes a support for the lever with one arm and the other has a frame. , likely to work with the electromagnet.
  • the locking plate has a small spring fixed at one end to the locking plate and at the other end to the support of the electromagnet.
  • the elastic element which pulls the lever with one arm up to the position of action on the lever with two arms and until the release of the pawl by the lever with two arms consists of the helical spring, fixed by one end to the lever on one arm and on the other end with hook on the supporting structure.
  • the tilting pawl, supporting the stirrup is held in the clutch position by an elastic element constituted by the helical spring.
  • the elastic element which pulls the lever to the disengaged position consists of a helical spring, fixed at one end to the stirrup and at the other end to the hook on the supporting structure and located obliquely, at an angle acute, relative to the axis of the worm.
  • the worm is fixed in a tilting bracket whose axis of rotation is located in a space limited by two parallel planes, perpendicular to the fixing surface of the winch and passing through one - l one axis of rotation of the worm wheel, the other - the axis of rotation of the worm in the clutch position.
  • the worm is tightened to the worm wheel in the clutch position by a tilting pawl supporting the stirrup and having an extension arm in the form of a lever with two arms perpendicular to each other.
  • the element releasing the pawl is a second lever with two arms perpendicular to each other and whose axis of rotation is identical with the axis of rotation of the stirrup.
  • the stirrup has a lug with a bearing surface, located opposite, along the diagonal, relative to the axis of rotation of the stirrup.
  • the pawl fixed in rotation on its axis, has the shape of a U-shaped profile and is equipped with rollers fixed inside the profile and pressing on the bearing surface of the lug of the stirrup.
  • the worm is fixed in a tilting bracket whose axis of rotation is located outside the space limited by two parallel planes, perpendicular to the fixing surface of the winch and passing through the 'one - the axis of rotation of the worm wheel, the other - the axis of rotation of the worm in the clutch position.
  • the worm is tightened to the worm wheel in the clutch position by a tilting pawl supporting the stirrup and having an extension arm in the form of a lever with one arm.
  • the element which releases the pawl is a lever with two arms located in line.
  • the pawl has the shape of a U-shaped profile connected to a T-shaped profile and is fixed, with the extension arm, in rotation on the axis formed by a bolt.
  • the pawl has two perpendicular bearing surfaces, one of which is defined by the front surface of the U-shaped profile and the other by the front surface of one of the arms of the T-shaped profile, this arm being located parallel to the mentioned front surface of the U-profile.
  • the stirrup has rollers pressing on the bearing surfaces of the pawl, the axis of rotation of the rollers being situated perpendicular to the axis of rotation of the worm.
  • the advantage of the solution according to the invention consists in simplicity of construction and the resulting infallibility of clutch and clutch of the worm gear system and the worm wheel.
  • the declutching system can be composed choice which allows to create different versions of the winch: with manual declutching, with manual and pneumatic declutching, with declutching manual and electromagnetic or with manual, pneumatic and electromagnetic.
  • figure no 1 represents the winch seen from side
  • figure no 2 the winch seen in longitudinal section
  • figure no 3 the winch seen from above
  • figure no 4 the lever with two arms seen from the side
  • figure no 5 the lever with one arm seen from the side
  • the figure no 6 the locking plate seen from the side
  • figure no 7 - a version of the winch seen from the side
  • figure no 8 this same version in longitudinal section.
  • the drum 4 In the box 1 of the winch containing the supporting construction 2, is rotatably fixed in the carcass 3 the drum 4 with the cable wound 5 passing through the sleeve 6.
  • the drum 4 is connected to the screw wheel without end 7 fixed on the same axis as this and working with the screw worm 8.
  • the axis of worm 8 has a hexagonal bit the crank.
  • the worm 8 is fixed in rotation in the stirrup 9.
  • the stirrup 9 is mounted in a tiltable manner relative to the worm wheel 7.
  • the axis of rotation of the stirrup 9 is located in the space limited by two parallel planes, perpendicular to the plane of attachment of the winch and through, one - the axis of rotation of the worm wheel 7, the other - the axis of rotation of the worm 8 in the clutch position.
  • the stirrup 9 has a lug 10 with the bearing surface "a", located opposite, along the diagonal, with respect to the axis of rotation of the stirrup 9.
  • the axis of rotation of the bracket 9 is constituted by bolt 11.
  • the worm 8, fixed in the tilting stirrup 9, is tightened to the worm wheel 7 in the clutch position using a tilting ratchet 12 supporting the stirrup 9 by the bearing surface "a" of lug 10.
  • the pawl 12 is mounted on the bolt 13 which constitutes its axis of rotation.
  • the pawl 12 is constituted by the U-shaped section with the extension arm 14.
  • the extension arm 14 of the pawl 12 has the form of a lever with two arms perpendicular to each other.
  • the pawl 12 has rollers 15, fixed inside, pressing on the bearing surface "a" of the lug 10 of the caliper 9.
  • the axis of rotation of the rollers 15 is located perpendicular to the axis of rotation of the worm 8.
  • the pawl 12 is held in the clutch position by the elastic element which consists of the first helical spring 16.
  • the elastic element which pulls the stirrup 9 up to the declutching position consists of the second helical spring 17, fixed by one end to the stirrup 9 and by the other end to the supporting construction 2, and located obliquely, at an acute angle, relative to the axis of the worm 8.
  • On the axis 18 is located in a tiltable manner the lever 19 with two arms, the end of which rests on the extension arm 14 of the pawl 12.
  • the lever 19 with two arms has the shape of a flat with the arms perpendicular between them.
  • the axis 18 of rotation of the lever 19 with two arms is identical with the axis of rotation of the stirrup 9.
  • the extension arm 14 and the lever 19 constitute a system of two two-arm levers in the shape of the letter L.
  • the lever 19 with two arms which releases the pawl 12 via the extension arm 14 has a support element 20 whose surface is perpendicular to the main surface of the lever 19 and whose edge is preferably parallel to the main edge of the dish.
  • the support element 20 can work with the piston rod 21 of the pneumatic cylinder, the cylinder 22 of which is fixed to the supporting construction 2.
  • the lever 24 can be fixed to one arm, the axis of rotation of which is identical to the axis of rotation of the wheel to worm 7 which can actuate the support element 20 of the lever 19.
  • the elastic element which pulls the lever 24 with one arm up to the position of action on the lever 19 with two arms consists of the third helical spring 25 fixed at one end to the lever to an arm 24 and at the other end to the hook in the supporting construction 2.
  • the lever 24 with one arm has a fork recess "b" on the side of the axis of rotation.
  • the second end of the lever 24 with one arm has a lug 26 capable of working with the locking plate 27.
  • the locking plate 27 has two surfaces perpendicular to each other. It constitutes an intermediate element between the lever 24 with one arm and the electromagnet 29.
  • the locking plate 27 is situated in rotation on the support 28 of the electromagnet 29, fixed to the supporting construction 2.
  • One of the surfaces of the locking plate 27 constitutes the support for the lever 24 with one arm and the other has a frame 30 working with the electromagnet 29.
  • the elastic element which pulls the locking plate 27 up to the position allowing the clutch consists of a small helical spring 31, fixed by one end to the locking plate 27 and by the other to the support 28 of the electromagnet 29.
  • the element 23 of the lever 19 After pulling towards you, by hand, the element 23 of the lever 19 with two arms, the second end of the lever presses on the extension arm 14 of the pawl 12, overcoming the resistance of the first spring 16.
  • the pawl 12 rotates on the bolt 13 and its rollers 15 move away from the bearing surface "a" of the lug 10.
  • the stirrup 9 turns on the bolt 11 and moves away from the worm wheel 7.
  • the disengaging of the worm system 8 and the worm wheel 7 then takes place. Thereafter, the cable 5 can unwind freely from the drum 4, releasing the blockage of the ventilation opening panel.
  • the ventilation opening panel opens, for example under the action of a gas spring.
  • the piston rod 21 presses on the support element 20 of the lever 19 with two arms which, by turning, releases via the extension arm 14 the pawl 12, which disengages the worm gear system 8 and the worm wheel 7.
  • the electromagnet 29 which can be mounted on the winch at the same time as the lever 24 with one arm and the locking plate 27, after the interruption of the current, the armature 30 of the plate lock 27 is released and the lug 26 of the lever 24 to one arm is released. Under the action of the third spring 25 takes place the rotation of the lever 24 with one arm and the recoil of the locking plate 27.
  • the lever 24 with one arm by pressing on the support element 20 of the lever 19 in two arm, in turn causes rotation of the lever 19 with two arms and, by means of the extension arm 14 of the pawl 12, the disengagement of the worm screw system 8 and the worm wheel 7.
  • the locking plate 27 remains in the retracted position, under the action of the small spring 31, which allows the clutch to be engaged again.
  • the worm gear 8 and the worm wheel 7 are again clutched using the crank after having overcome the resistance of the second spring 17.
  • the winch declutching system can be composed as desired. he contains, in each case, the lever 19 with two arms working with the extension arm 14 of the pawl 12.
  • the system can include the pneumatic declutching elements, constituted by the cylinder 22 and the piston rod 21 of the pneumatic cylinder as well as the power supply or the electromagnetic clutch release components of the electromagnet 29, of the lever 24 with one arm and of the plate of locking 27. It is possible to mount the elements at the same time pneumatic and electromagnetic clutch release.
  • the element which releases the stirrup 109 from the worm 108 to the declutching position consists of a lever 119 with two arms located in line, fixed on the axis 118.
  • the axis 118 of rotation of the lever 119 with two arms is located in the space limited by two parallel planes, perpendicular to the fixing surface of the winch and crossing the axis of rotation of the worm wheel 107 as well as the 'axis of the inclination of the stirrup 109, constituted by the bolt 111.
  • the end of the lever 119 with two arms rests on the extension arm 114 of the pawl 112.
  • the lever 119 with two arms has a recess on the arm acting on the extension arm 114 of the pawl 112.
  • the stirrup 109 is closed by the connector 110.
  • the stirrup 109 is fixed in a tilting manner relative to the worm wheel 107 on the bolt 111.
  • the worm 108 fixed in the tilting stirrup 109 is tightened to the worm wheel 107 by the tilting pawl 112 supporting the connector 110 of the stirrup 109.
  • the pawl 112 is located on the bolt 113 which constitutes its axis of rotation.
  • the pawl 112 is constituted by the U-shaped profile connected with the T-profile which partially closes it.
  • the pawl 112 has two perpendicular bearing surfaces, one of which is defined by the front surface "a1" of the U-profile and the other by the front surface "a2" of one of the arms of the T-profile , arm located parallel to the front surface "a1".
  • On the bolt 113 is fixed the lever arm 114 in the form of a lever to an arm working with the pawl 112.
  • the pawl 112 works with the rollers 115 fixed in the connector 110 and which, in the clutch position, are blocked by the bearing surfaces "a1” and "a2” of the pawl 112.
  • the axis of rotation of the rollers 115 is located perpendicularly to the axis of rotation of the endless screw 108.
  • the pawl 112 is held in the clutch position by the elastic element constituted by the first helical spring 116.
  • the disengaging of the winch takes place in a manner analogous to the first version, with use of the lever with one arm 124.
  • the declutching system can be made up as desired also in the case of this second version. It contains, in each case, the lever 119 with two arms working with the extension arm 114.
  • the system can include the elements of the pneumatic clutch or the elements of the electromagnetic clutch. It is also possible to mount the pneumatic and electromagnetic release elements at the same time.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Jib Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Braking Arrangements (AREA)

Abstract

The winch consists of a housing containing a drum with a wound cable, fixed to a frame and operated by an endless screw coupled to a second screw attached to a tilting stirrup actuated by a lever engaging with the endless screw wheel and disengaged by a lever and spring mechanism. The disengagement mechanism comprises a two-arm lever (19) with manual and pneumatic operation, and with its axis of rotation (18) located in the space between two parallel planes lying perpendicular to the winch locking plane. One plane passes through the axis of rotation of the endless screw wheel, and the other through the tilting axis of the stirrup. The lever's axis is preferably identical with the stirrup's tilting axis and, in a variant, the disengagement mechanism can comprise a one-arm lever which is operated electromagnetically.

Description

L'objet de l'invention est un treuil destiné en particulier pour fermer et ouvrir les panneaux mobiles d'ouvertures d'aération.The object of the invention is a winch intended in particular for close and open the mobile ventilation opening panels.

Est connu, grâce à la description du brevet français no 2 605 620, un treuil contenant une construction portante sur laquelle est fixé en rotation un tabour dont l'axe est parallèle au plan de fixation du treuil au mur. Autour du tambour est enroulé un câble qui passe par un système de poulies et sert à ouvrir et à fermer le panneau mobile de l'ouverture d'aération. Le tambour est relié à une roue à vis sans fin couplée avec une vis sans fin. L'axe de la vis sans fin est fixée dans un étrier qui peut être incliné par rapport à la roue à vis sans fin. L'étrier est bloqué dans la position d'embrayage à l'aide d'un levier à un bras maintenu par un ressort plat. Pour débrayer le système on utilise un levier à deux bras bloqué en position d'embrayage par un deuxième ressort plat. Le débrayage est effectué en surmontant la résistance dudit deuxième ressort par l'action sur un bouton-poussoir manuel. Le débrayage peut aussi avoir lieu sous l'action d'un éléctroaimant, à l'aide d'un levier supplémentaire.Is known, thanks to the description of French Patent No. 2,605,620, a winch containing a load-bearing structure to which is fixed in rotation of a stool whose axis is parallel to the fixing plane of the winch on the wall. Around the drum is wound a cable which passes through a pulley system and is used to open and close the movable panel of the ventilation opening. The drum is connected to a worm wheel coupled with a worm screw. The axis of the worm is fixed in a bracket which can be tilted relative to the worm wheel. The caliper is locked in the clutch position using a lever to an arm held by a flat spring. To disengage the system we uses a two-arm lever locked in the clutch position by a second flat spring. The clutch is released by overcoming the resistance of said second spring by the action on a push button manual. The declutching can also take place under the action of a electromagnet, using an additional lever.

L'invention propose un nouveau treuil selon la partie caractérisante de la revendication 1.The invention proposes a new winch according to the part Characterizing of claim 1.

Le treuil selon l'invention contient aussi un tambour avec câble enroulé, tambour logé dans une carcasse et entraíné par une roue à vis sans fin solidarisée avec lui et couplée avec une vis sans fin, fixée dans un étrier inclinable et entrainée à l'aide d'une manivelle. L' étrier est maintenu en position d'embrayage par l'intermédiaire d'un cliquet. L'essentiel de la solution selon l'invention consiste en ce que le système de débrayage est constitué par un levier à deux bras, destiné pour une action manuelle ou pneumatique et dont l'axe de rotation appartient à l'espace limité par deux plans parallèles, perpendiculaires à la surface de fixation du treuil et traversant l'un - l'axe de rotation de la roue à vis sans fin, l'autre - l'axe d'inclinaison de l'étrier. L'axe de rotation du levier à deux bras est identique, de préférence, avec l'axe de rotation de l'étrier.
Le treuil peut avoir, en option, dans le système de débrayage, un levier à un bras destiné à une action électromagnétique, situé sur un plan parallèle à la surface principale du levier à deux bras et ayant un axe de rotation identique avec l'axe de rotation de la roue à vis
Le levier à deux bras libérant le cliquet possède un élément d'appui pour le débrayage pneumatique, élément susceptible d'être poussé par la tige de piston du verin pneumatique dont le cylindre est fixé à la construction portante. Le levier à deux bras possède aussi un élément de débrayage manuel, situé à l'opposé de l'élément d'appui de débrayage pneumatique.
Le levier à un bras possède un évidement en fourchette du côté de l' axe de rotation et le deuxième bout du levier à un bras a un ergot susceptible de travailler avec une plaquette de vérouillage qui constitue l'élément intermédiaire entre le levier à un bras et l'électroaimant.
La plaquette de verouillage est fixée en rotation sur le support de l' électroaimant, support fixé à la construction portante, et possède deux surfaces perpendiculaires entre elles dont l'une constitue un appui pour le levier à un bras et l'autre possède une armature, susceptible de travailler avec l'électroaimant. De plus la plaquette de verouillage a un petit ressort fixé par un bout à la plaquette de verouillage et par l'autre bout au support de l'électroaimant.
L'élément élastique qui tire le levier à un bras jusqu' à la position d'action sur le levier à deux bras et jusqu' à la libération du cliquet par le levier à deux bras est constitué du ressort hélicoïdal, fixé par un bout au levier à un bras et par l'autre bout au crochet sur la construction portante.
Le cliquet inclinable, soutenant l'étrier, est maintenu en position d' embrayage par un élément élastique constitué du ressort hélicoïdal. L' élément élastique qui tire le levier jusqu' a la position de débrayage est constitué d'un ressort hélicoïdal, fixé par un bout à l'étrier et par l'autre bout au crochet sur la construction portante et situé obliquement, sous un angle aigu, par rapport à l'axe de la vis sans fin.
The winch according to the invention also contains a drum with coiled cable, drum housed in a carcass and driven by a worm wheel secured to it and coupled with a worm screw, fixed in a tilting stirrup and driven using a crank. The caliper is held in the clutch position by means of a ratchet. The essence of the solution according to the invention consists in that the declutching system is constituted by a lever with two arms, intended for manual or pneumatic action and whose axis of rotation belongs to the space limited by two planes parallel, perpendicular to the fixing surface of the winch and crossing one - the axis of rotation of the worm wheel, the other - the axis of inclination of the caliper. The axis of rotation of the two-arm lever is preferably identical to the axis of rotation of the caliper.
The winch can have, as an option, in the declutching system, a one-arm lever intended for an electromagnetic action, located on a plane parallel to the main surface of the two-arm lever and having an axis of rotation identical to the axis screw wheel rotation
The two-arm lever releasing the pawl has a support element for pneumatic disengagement, an element capable of being pushed by the piston rod of the pneumatic cylinder whose cylinder is fixed to the bearing construction. The two-arm lever also has a manual release element, located opposite the pneumatic release support element.
The lever with one arm has a fork recess on the side of the axis of rotation and the second end of the lever with one arm has a lug capable of working with a locking plate which constitutes the intermediate element between the lever with one arm and the electromagnet.
The locking plate is fixed in rotation on the support of the electromagnet, support fixed to the supporting construction, and has two perpendicular surfaces between them, one of which constitutes a support for the lever with one arm and the other has a frame. , likely to work with the electromagnet. In addition, the locking plate has a small spring fixed at one end to the locking plate and at the other end to the support of the electromagnet.
The elastic element which pulls the lever with one arm up to the position of action on the lever with two arms and until the release of the pawl by the lever with two arms consists of the helical spring, fixed by one end to the lever on one arm and on the other end with hook on the supporting structure.
The tilting pawl, supporting the stirrup, is held in the clutch position by an elastic element constituted by the helical spring. The elastic element which pulls the lever to the disengaged position consists of a helical spring, fixed at one end to the stirrup and at the other end to the hook on the supporting structure and located obliquely, at an angle acute, relative to the axis of the worm.

Dans une version de l'invention, la vis sans fin est fixée dans un étrier inclinable dont l'axe de rotation est situé dans un espace limité par deux plans parallèles, perpendiculaires à la surface de fixation du treuil et traversant l'un - l'axe de rotation de la roue à vis sans fin, l'autre - l'axe de rotation de la vis sans fin dans la position d'embrayage. La vis sans fin est serrée à la roue à vis sans fin en position d'embrayage par un cliquet inclinable soutenant l'étrier et possédant un bras-allonge en forme d'un levier à deux bras perpendiculaires entre eux. L'élément libérant le cliquet est un deuxième levier à deux bras perpendiculaires entre eux et dont l'axe de rotation est identique avec l'axe de rotation de l'étrier.
L'étrier a un ergot avec une surface d'appui, située à l'opposé, suivant la diagonale, par rapport à l'axe de rotation de l'étrier.
Le cliquet, fixé en rotation sur son axe, a la forme d'un profilé en U et est équipé en galets fixés à l'intérieur du profilé et appuyant sur la surface d'appui de l'ergot de l'étrier.
In one version of the invention, the worm is fixed in a tilting bracket whose axis of rotation is located in a space limited by two parallel planes, perpendicular to the fixing surface of the winch and passing through one - l one axis of rotation of the worm wheel, the other - the axis of rotation of the worm in the clutch position. The worm is tightened to the worm wheel in the clutch position by a tilting pawl supporting the stirrup and having an extension arm in the form of a lever with two arms perpendicular to each other. The element releasing the pawl is a second lever with two arms perpendicular to each other and whose axis of rotation is identical with the axis of rotation of the stirrup.
The stirrup has a lug with a bearing surface, located opposite, along the diagonal, relative to the axis of rotation of the stirrup.
The pawl, fixed in rotation on its axis, has the shape of a U-shaped profile and is equipped with rollers fixed inside the profile and pressing on the bearing surface of the lug of the stirrup.

Dans une autre version de l'invention, la vis sans fin est fixée dans un étrier inclinable dont l'axe de rotation est situé en dehors de l' espace limité par deux plans parallèles, perpendiculaires à la surface de fixation du treuil et traversant l'un - l'axe de rotation de la roue à vis sans fin, l'autre - l'axe de rotation de la vis sans fin en position d'embrayage. La vis sans fin est serrée à la roue à vis sans fin en position d'embrayage par un cliquet inclinable soutenant l' étrier et possédant un bras-allonge en forme d'un levier à un bras. L' élément qui libère le cliquet est un levier à deux bras situés en ligne.
Le cliquet a la forme d'un profilé en U relié à un profilé en T et est fixé, avec le bras-allonge, en rotation sur l'axe constitué par un boulon. Le cliquet a deux surfaces d'appui perpendiculaires entre elles dont l'une est définie par la surface frontale du profilé en U et l'autre par la surface frontale de l'un des bras du profilé en T, ce bras étant situé parallèlement à la surface frontale mentionnée du profilé en U.
L'étrier possède des galets appuyant sur les surfaces d'appui du cliquet, l'axe de rotation des galets étant située perpendiculairement à l'axe de rotation de la vis sans fin.
In another version of the invention, the worm is fixed in a tilting bracket whose axis of rotation is located outside the space limited by two parallel planes, perpendicular to the fixing surface of the winch and passing through the 'one - the axis of rotation of the worm wheel, the other - the axis of rotation of the worm in the clutch position. The worm is tightened to the worm wheel in the clutch position by a tilting pawl supporting the stirrup and having an extension arm in the form of a lever with one arm. The element which releases the pawl is a lever with two arms located in line.
The pawl has the shape of a U-shaped profile connected to a T-shaped profile and is fixed, with the extension arm, in rotation on the axis formed by a bolt. The pawl has two perpendicular bearing surfaces, one of which is defined by the front surface of the U-shaped profile and the other by the front surface of one of the arms of the T-shaped profile, this arm being located parallel to the mentioned front surface of the U-profile.
The stirrup has rollers pressing on the bearing surfaces of the pawl, the axis of rotation of the rollers being situated perpendicular to the axis of rotation of the worm.

L'avantage de la solution selon l'invention consiste en la simplicité de la construction et en l'infaillibilité, qui en résulte, du débrayage et de l'embrayage du système de la vis sans fin et de la roue à vis sans fin. Le système de débrayage peut être composé au choix ce qui permet de créer différentes versions du treuil: avec débrayage manuel, avec débrayage manuel et pneumatique, avec débrayage manuel et électromagnétique ou avec débrayage manuel, pneumatique et électromagnétique.The advantage of the solution according to the invention consists in simplicity of construction and the resulting infallibility of clutch and clutch of the worm gear system and the worm wheel. The declutching system can be composed choice which allows to create different versions of the winch: with manual declutching, with manual and pneumatic declutching, with declutching manual and electromagnetic or with manual, pneumatic and electromagnetic.

La solution selon l'invention est présentée à travers des exemples d' exécution sur les dessins où la figure no 1 représente le treuil vu de coté, la figure no 2 - le treuil vu en coupe longitudinale, la figure no 3 - le treuil vu d' en haut, la figure no 4 - le levier à deux bras vu de coté, la figure no 5 - le levier à un bras vu de coté, la figure no 6 - la plaquette de verouillage vue de coté, la figure no 7 - une version du treuil vue de côté et la figure no 8 - cette même version en coupe longitidunale.The solution according to the invention is presented through examples of execution on the drawings where figure no 1 represents the winch seen from side, figure no 2 - the winch seen in longitudinal section, figure no 3 - the winch seen from above, figure no 4 - the lever with two arms seen from the side, figure no 5 - the lever with one arm seen from the side, the figure no 6 - the locking plate seen from the side, figure no 7 - a version of the winch seen from the side and figure no 8 - this same version in longitudinal section.

Dans le boítier 1 du treuil contenant la construction portante 2, est fixé en rotation dans la carcasse 3 le tambour 4 avec le câble enroulé 5 traversant la douille 6. Le tambour 4 est relié à la roue à vis sans fin 7 fixée sur le même axe que celui-ci et travaillant avec la vis sans fin 8. L'axe de la vis sans fin 8 a un embout hexagonal recevant la manivelle. La vis sans fin 8 est fixée en rotation dans l'étrier 9.In the box 1 of the winch containing the supporting construction 2, is rotatably fixed in the carcass 3 the drum 4 with the cable wound 5 passing through the sleeve 6. The drum 4 is connected to the screw wheel without end 7 fixed on the same axis as this and working with the screw worm 8. The axis of worm 8 has a hexagonal bit the crank. The worm 8 is fixed in rotation in the stirrup 9.

L'étrier 9 est monté d'une façon inclinable par rapport à la roue à vis sans fin 7. L'axe de rotation de l'étrier 9 est situé dans l' espace limité par deux plans parallèles, perpendiculaires au plan de fixation du treuil et traversant, l'un - l'axe de rotation de la roue à vis sans fin 7, l'autre - l'axe de rotation de la vis sans fin 8 en position d'embrayage. L'étrier 9 a un ergot 10 avec la surface d' appui "a", située à l'opposé, suivant la diagonale, par rapport à l' axe de rotation de l'étrier 9. L'axe de rotation de l'étrier 9 est constitué par le boulon 11.
La vis sans fin 8, fixée dans l'étrier inclinable 9, est serrée à la roue à vis sans fin 7 en position d'embrayage à l'aide d'un cliquet inclinable 12 soutenant l'étrier 9 par la surface d' appui "a" de l' ergot 10.
Le cliquet 12 est monté sur le boulon 13 qui constitue son axe de rotation. Le cliquet 12 est constitué par le profilé en U avec le bras-allonge 14. Le bras-allonge 14 du cliquet 12 a la forme d'un levier à deux bras perpendiculaires entre eux. Le cliquet 12 a des galets 15, fixés à l'intérieur, appuyant sur la surface d'appui "a" de l'ergot 10 de l'étrier 9. L'axe de rotation des galets 15 est situé perpendiculairement par rapport à l'axe de rotation de la vis sans fin 8. Le cliquet 12 est maintenu en position d'embrayage par l'élément élastique qui est constitué du premier ressort hélicoïdal 16.
L'élément élastique qui tire l'étrier 9 jusqu' à la position de débrayage est constitué du deuxième ressort hélicoïdal 17, fixé par un bout à l'étrier 9 et par l'autre bout à la construction portante 2, et situé obliquement, sous un angle aigu, par rapport à l'axe de la vis sans fin 8.
Sur l'axe 18 est situé d'une façon inclinable le levier 19 à deux bras, dont le bout repose sur le bras-alonge 14 du cliquet 12. Le levier 19 à deux bras a la forme d'un plat aux bras perpendiculaires entre eux. L'axe 18 de rotation du levier 19 à deux bras est identique avec l'axe de rotation de l'étrier 9.
Le bras-allonge 14 et le levier 19 constituent un système de deux leviers à deux bras en forme de la lettre L.
Le levier 19 à deux bras qui libère le cliquet 12 par l'intermédiaire du bras-allonge 14 a un élément d'appui 20 dont la surface est perpendiculaire à la surface principale du levier 19 et dont le bord est, de préférence, parallèle au bord principal du plat. L'élément d' appui 20 peut travailler avec la tige de piston 21 du verin pneumatique dont le cylindre 22 est fixé à la construction portante 2. L'élément 23, permettant le débrayage manuel, dont la surface est perpendiculaire à la surface principale du levier 19 à deux bras, et dont le bord est, de préférence, parallèle au bord principal du plat, est situé à l'opposé de l'élément d'appui 20 du levier 19.
Parallèlement au levier 19 à deux bras qui libère le cliquet 12 par l' intermédiaire du bras-allonge 14, peut être fixé le levier 24 à un bras, dont l'axe de rotation est identique à l'axe de rotation de la roue à vis sans fin 7 et qui peut actionner l'élément d'appui 20 du levier 19. L'élément élastique qui tire le levier 24 à un bras jusqu' à la position d'action sur le levier 19 à deux bras est constitué par le troisième ressort hélicoïdal 25 fixé par un bout au levier à un bras 24 et par l'autre bout au crochet dans la construction portante 2.
Le levier 24 à un bras a un évidement "b" en fourchette du côté de l' axe de rotation.
Le deuxième bout du levier 24 à un bras a un ergot 26 susceptible de travailler avec la plaquette de vérouillage 27. La plaquette de verouillage 27 a deux surfaces perpendiculaires entre eux. Elle constitue un élément intermédiaire entre le levier 24 à un bras et l' électroaimant 29. La plaquette de verouillage 27 est située en rotation sur le support 28 de l'électroaimant 29, fixé à la construction portante 2. L'une des surfaces de la plaquette de verouillage 27 constitue l'appui pour le levier 24 à un bras et l' autre possède une armature 30 travaillant avec l'électroaimant 29. L' élément élastique qui tire la plaquette de verouillage 27 jusqu' à la position permettant l'embrayage est constitué par un petit ressort hélicoïdal 31, fixé par un bout à la plaquette de verouillage 27 et par l'autre au support 28 de l'électroaimant 29.
The stirrup 9 is mounted in a tiltable manner relative to the worm wheel 7. The axis of rotation of the stirrup 9 is located in the space limited by two parallel planes, perpendicular to the plane of attachment of the winch and through, one - the axis of rotation of the worm wheel 7, the other - the axis of rotation of the worm 8 in the clutch position. The stirrup 9 has a lug 10 with the bearing surface "a", located opposite, along the diagonal, with respect to the axis of rotation of the stirrup 9. The axis of rotation of the bracket 9 is constituted by bolt 11.
The worm 8, fixed in the tilting stirrup 9, is tightened to the worm wheel 7 in the clutch position using a tilting ratchet 12 supporting the stirrup 9 by the bearing surface "a" of lug 10.
The pawl 12 is mounted on the bolt 13 which constitutes its axis of rotation. The pawl 12 is constituted by the U-shaped section with the extension arm 14. The extension arm 14 of the pawl 12 has the form of a lever with two arms perpendicular to each other. The pawl 12 has rollers 15, fixed inside, pressing on the bearing surface "a" of the lug 10 of the caliper 9. The axis of rotation of the rollers 15 is located perpendicular to the axis of rotation of the worm 8. The pawl 12 is held in the clutch position by the elastic element which consists of the first helical spring 16.
The elastic element which pulls the stirrup 9 up to the declutching position consists of the second helical spring 17, fixed by one end to the stirrup 9 and by the other end to the supporting construction 2, and located obliquely, at an acute angle, relative to the axis of the worm 8.
On the axis 18 is located in a tiltable manner the lever 19 with two arms, the end of which rests on the extension arm 14 of the pawl 12. The lever 19 with two arms has the shape of a flat with the arms perpendicular between them. The axis 18 of rotation of the lever 19 with two arms is identical with the axis of rotation of the stirrup 9.
The extension arm 14 and the lever 19 constitute a system of two two-arm levers in the shape of the letter L.
The lever 19 with two arms which releases the pawl 12 via the extension arm 14 has a support element 20 whose surface is perpendicular to the main surface of the lever 19 and whose edge is preferably parallel to the main edge of the dish. The support element 20 can work with the piston rod 21 of the pneumatic cylinder, the cylinder 22 of which is fixed to the supporting construction 2. The element 23, allowing manual disengagement, the surface of which is perpendicular to the main surface of the lever 19 with two arms, and the edge of which is preferably parallel to the main edge of the dish, is situated opposite the support element 20 of the lever 19.
Parallel to the lever 19 with two arms which releases the pawl 12 by means of the extension arm 14, the lever 24 can be fixed to one arm, the axis of rotation of which is identical to the axis of rotation of the wheel to worm 7 which can actuate the support element 20 of the lever 19. The elastic element which pulls the lever 24 with one arm up to the position of action on the lever 19 with two arms consists of the third helical spring 25 fixed at one end to the lever to an arm 24 and at the other end to the hook in the supporting construction 2.
The lever 24 with one arm has a fork recess "b" on the side of the axis of rotation.
The second end of the lever 24 with one arm has a lug 26 capable of working with the locking plate 27. The locking plate 27 has two surfaces perpendicular to each other. It constitutes an intermediate element between the lever 24 with one arm and the electromagnet 29. The locking plate 27 is situated in rotation on the support 28 of the electromagnet 29, fixed to the supporting construction 2. One of the surfaces of the locking plate 27 constitutes the support for the lever 24 with one arm and the other has a frame 30 working with the electromagnet 29. The elastic element which pulls the locking plate 27 up to the position allowing the clutch consists of a small helical spring 31, fixed by one end to the locking plate 27 and by the other to the support 28 of the electromagnet 29.

Après avoir tiré vers soi, à la main, l'élément 23 du levier 19 à deux bras, le deuxième bout du levier appuie sur le bras-allonge 14 du cliquet 12, en surmontant la résistance du premier ressort 16. Le cliquet 12 tourne sur le boulon 13 et ses galets 15 s'éloignent de la surface d'appui "a" de l'ergot 10. Sous l'action de la force exercée par le deuxième ressort 17, l'étrier 9 tourne sur le boulon 11 et s' éloigne de la roue à vis sans fin 7. A lieu alors le débrayage du système de la vis sans fin 8 et de la roue à vis sans fin 7.
Par la suite, le câble 5 peut se dérouler librement du tambour 4, libérant le blocage du panneau d'ouverture d' aération. Le panneau d' ouverture d'aération s'ouvre, par exemple sous l'action d'un ressort à gaz.
Lors de 1' utilisation du verin pneumatique qui peut être monté sur le treuil, la tige de piston 21 appuie sur l'élément d'appui 20 du levier 19 à deux bras qui, en tournant, libère par l'intermédiare du bras-allonge 14 le cliquet 12, ce qui provoque le débrayage du système de vis sans fin 8 et de la roue à vis sans fin 7.
Lors de l'utilisation de l'électroaimant 29, qui peut être monté sur le treuil en même temps que le levier 24 à un bras et de la plaquette de verouillage 27, après l'interruption du courant, l'armature 30 de la plaquette de verouillage 27 est libérée et l'ergot 26 du levier 24 à un bras est débloqué. Sous l'action du troisième ressort 25 a lieu la rotation du levier 24 à un bras et le recul de la plaquette de verouillage 27. Le levier 24 à un bras, en appuyant sur l'élément d' appui 20 du levier 19 à deux bras, provoque à son tour la rotation du levier 19 à deux bras et, par l'intermédiare du bras-allonge 14 du cliquet 12, le débrayage du système de la vis sans fin 8 et de la roue à vis sans fin 7. La plaquette de verouillage 27 reste en position reculée, sous l'action du petit ressort 31, ce qui permet l'embrayage à nouveau.
L'embrayage à nouveau de la vis sans fin 8 et de la roue à vis sans fin 7 est réalisé à l'aide de la manivelle après avoir surmonté la résistance du deuxième ressort 17.
After pulling towards you, by hand, the element 23 of the lever 19 with two arms, the second end of the lever presses on the extension arm 14 of the pawl 12, overcoming the resistance of the first spring 16. The pawl 12 rotates on the bolt 13 and its rollers 15 move away from the bearing surface "a" of the lug 10. Under the action of the force exerted by the second spring 17, the stirrup 9 turns on the bolt 11 and moves away from the worm wheel 7. The disengaging of the worm system 8 and the worm wheel 7 then takes place.
Thereafter, the cable 5 can unwind freely from the drum 4, releasing the blockage of the ventilation opening panel. The ventilation opening panel opens, for example under the action of a gas spring.
When using the pneumatic cylinder which can be mounted on the winch, the piston rod 21 presses on the support element 20 of the lever 19 with two arms which, by turning, releases via the extension arm 14 the pawl 12, which disengages the worm gear system 8 and the worm wheel 7.
When using the electromagnet 29, which can be mounted on the winch at the same time as the lever 24 with one arm and the locking plate 27, after the interruption of the current, the armature 30 of the plate lock 27 is released and the lug 26 of the lever 24 to one arm is released. Under the action of the third spring 25 takes place the rotation of the lever 24 with one arm and the recoil of the locking plate 27. The lever 24 with one arm, by pressing on the support element 20 of the lever 19 in two arm, in turn causes rotation of the lever 19 with two arms and, by means of the extension arm 14 of the pawl 12, the disengagement of the worm screw system 8 and the worm wheel 7. The locking plate 27 remains in the retracted position, under the action of the small spring 31, which allows the clutch to be engaged again.
The worm gear 8 and the worm wheel 7 are again clutched using the crank after having overcome the resistance of the second spring 17.

Le système de débrayage du treuil peut être composé au choix. Il contient, dans chaque cas, le levier 19 à deux bras travaillant avec le bras-allonge 14 du cliquet 12. En plus, le système peut inclure les éléments du débrayage pneumatique, constitués par le cylindre 22 et la tige de piston 21 du verin pneumatique ainsi que le système d' alimentation ou les éléments du débrayage électromagnétique constitués de l'électroaimant 29, du levier 24 à un bras et de la plaquette de verouillage 27. Il est possible de monter en même temps les éléments de débrayage pneumatique et électromagnétique.The winch declutching system can be composed as desired. he contains, in each case, the lever 19 with two arms working with the extension arm 14 of the pawl 12. In addition, the system can include the pneumatic declutching elements, constituted by the cylinder 22 and the piston rod 21 of the pneumatic cylinder as well as the power supply or the electromagnetic clutch release components of the electromagnet 29, of the lever 24 with one arm and of the plate of locking 27. It is possible to mount the elements at the same time pneumatic and electromagnetic clutch release.

Un autre exemple de réalisation du treuil selon l'invention est présenté sur la figure no 7 et sur la figure no 8.
Dans cette version, l'élément qui libère l'étrier 109 de la vis sans fin 108 jusqu' à la position de débrayage est constitué par un levier 119 à deux bras situés en ligne, fixé sur l'axe 118.
L'axe 118 de rotation du levier 119 à deux bras est situé dans l' espace limité par deux plans parallèles, perpendiculaires à la surface de fixation du treuil et traversant l'axe de rotation de la roue à vis sans fin 107 ainsi que l'axe de l'inclinaison de l'étrier 109, constitué par le boulon 111.
Le bout du levier 119 à deux bras repose sur le bras-allonge 114 du cliquet 112. Le levier 119 à deux bras a un évidement sur le bras agissant sur le bras-allonge 114 du cliquet 112.
L'étrier 109 est fermé par le raccord 110. L'étrier 109 est fixé d' une façon inclinable par rapport à la roue à vis sans fin 107 sur le boulon 111. La vis sans fin 108 fixée dans l'étrier inclinable 109 est serrée à la roue à vis sans fin 107 par le cliquet inclinable 112 soutenant le raccord 110 de l'étrier 109.
Le cliquet 112 est situé sur le boulon 113 qui constitue son axe de rotation. Le cliquet 112 est constitué par le profilé en U relié avec le profilé en T qui le ferme partiellement. Le cliquet 112 possède deux surfaces d'appui perpendiculaires entre elles dont l'une est définie par la surface frontale "a1" du profilé en U et l'autre par la surface frontale "a2" de l'un des bras du profilé en T, bras situé parallèlement à la surface frontale "a1". Sur le boulon 113 est fixé le bras-allonge 114 en forme de levier à un bras travaillant avec le cliquet 112.
Le cliquet 112 travaille avec les galets 115 fixés dans le raccord 110 et qui, en position d'embrayage, sont bloquées par les surfaces d' appui "a1" et "a2" du cliquet 112. L'axe de rotation des galets 115 est situé perpendiculairement par rappport à l'axe de rotation de la vis sans fin 108. Le cliquet 112 est maintenu en position d'embrayage par l'élément élastique constitué du premier ressort hélicoïdal 116.
Another embodiment of the winch according to the invention is presented in FIG. 7 and in FIG. 8.
In this version, the element which releases the stirrup 109 from the worm 108 to the declutching position consists of a lever 119 with two arms located in line, fixed on the axis 118.
The axis 118 of rotation of the lever 119 with two arms is located in the space limited by two parallel planes, perpendicular to the fixing surface of the winch and crossing the axis of rotation of the worm wheel 107 as well as the 'axis of the inclination of the stirrup 109, constituted by the bolt 111.
The end of the lever 119 with two arms rests on the extension arm 114 of the pawl 112. The lever 119 with two arms has a recess on the arm acting on the extension arm 114 of the pawl 112.
The stirrup 109 is closed by the connector 110. The stirrup 109 is fixed in a tilting manner relative to the worm wheel 107 on the bolt 111. The worm 108 fixed in the tilting stirrup 109 is tightened to the worm wheel 107 by the tilting pawl 112 supporting the connector 110 of the stirrup 109.
The pawl 112 is located on the bolt 113 which constitutes its axis of rotation. The pawl 112 is constituted by the U-shaped profile connected with the T-profile which partially closes it. The pawl 112 has two perpendicular bearing surfaces, one of which is defined by the front surface "a1" of the U-profile and the other by the front surface "a2" of one of the arms of the T-profile , arm located parallel to the front surface "a1". On the bolt 113 is fixed the lever arm 114 in the form of a lever to an arm working with the pawl 112.
The pawl 112 works with the rollers 115 fixed in the connector 110 and which, in the clutch position, are blocked by the bearing surfaces "a1" and "a2" of the pawl 112. The axis of rotation of the rollers 115 is located perpendicularly to the axis of rotation of the endless screw 108. The pawl 112 is held in the clutch position by the elastic element constituted by the first helical spring 116.

Dans cette version, après avoir appuyé à la main l'élément 123 du levier 119 à deux bras, le deuxième bout de ce dernier appuie sur le bras-allonge 114 du cliquet 112, en surmontant la résistance du premier ressort 116, et libère le cliquet 112. Sous l'action de la force exercée par le deuxième ressort hélicoïdal 117, l'étrier 109 tourne sur le boulon 111 et s'éloigne de la roue à vis sans fin 107. A lieu le débrayage du système de la vis sans fin 108 et de la roue à vis sans fin 107.In this version, after pressing element 123 of the lever 119 with two arms, the second end of the latter presses on the extension arm 114 of pawl 112, overcoming the resistance of the first spring 116, and releases the pawl 112. Under the action of the force exerted by the second helical spring 117, the stirrup 109 turns on the bolt 111 and moves away from the worm wheel 107. A place the disengaging of the worm gear system 108 and the wheel worm gear 107.

Lors de l'utilisation du verin pneumatique et/ou de l'électroaimant, le débrayage du treuil a lieu d'une façon analogique à la première version, avec utilisation du levier à un bras 124.
Le système de débrayage peut être composé au choix aussi dans le cas de cette deuxième version. Il contient, dans chaque cas, le levier 119 à deux bras travaillant avec le bras-allonge 114. En plus, le système peut inclure les éléments du débrayage pneumatique ou les éléments du débrayage électromagnétique.
Il est possible aussi de monter en même temps les éléments de débrayage pneumatique et électromagnétique.
When using the pneumatic cylinder and / or the electromagnet, the disengaging of the winch takes place in a manner analogous to the first version, with use of the lever with one arm 124.
The declutching system can be made up as desired also in the case of this second version. It contains, in each case, the lever 119 with two arms working with the extension arm 114. In addition, the system can include the elements of the pneumatic clutch or the elements of the electromagnetic clutch.
It is also possible to mount the pneumatic and electromagnetic release elements at the same time.

Les exemples présentés ci-dessus ne limitent pas la réalisation de l' invention, qui est limitée seulement par la portée des revendications suivantes.The examples presented above do not limit the realization of the invention, which is limited only by the scope of the following claims.

Claims (14)

  1. A winch for opening and closing movable ventilation flaps, containing a casing (1) wherein a drum (4) is enclosed with a wound cable (5), said drum mounted in the body (3) and driven by an attached worm wheel (7) meshed with a worm shaft (8) mounted in a swing yoke (9), driven by a hand-crank, engaged with the worm wheel (7) and disengaged through a system of levers and springs, said worm shaft (8) held engaged by a pawl (12), with disengagement unit comprising a double-arm lever (19), characterised in that the axis of rotation (18) of the double-arm lever (19) belongs to the space limited by two parallel planes, both perpendicular to the plane of the winch mounting and including - the first one - the axis of rotation of the worm wheel (7), the second one - the axis of swinging of the yoke (9).
  2. The winch of claim 1, characterised in that the axis of rotation (18) of the said double-arm lever coincides with the axis of swinging of the yoke (9).
  3. The winch of claim 1 or 2, characterised in that the disengagement unit contains, in addition, a single-arm lever (24), positioned in the plane parallel to the main surface of the double-arm lever (19), whose axis of rotation coincides with the axis of rotation of the worm wheel (7).
  4. The winch of whichever of claims from 1 through 3, characterised in that the double-arm lever (19) releasing the pawl (12) has a thrust element (20) for pneumatic disengagement, resting on the piston rod (21) of the pneumatic servo whose cylinder (22) is attached to the mounting support (2) and has an element (23) for manual disengagement, in the position opposite relative to the thrust element (20).
  5. The winch of each of claims from 1 through 4, characterised in that the single-arm lever (24) has a forked end ("b") close to the axis of rotation, while the other end of the single-arm lever (24) has a tongue (26) mating the catch plate (27) which constitutes an intermediate part between the single-arm lever (24) and the electromagnet (29).
  6. The winch of claim 5, characterised in that the catch plate (27) is pivoted on the support (28) of the electromagnet (29) attached to a mounting support (2) and has two surfaces perpendicular to each other, of which one serves as an abutment for the single-arm lever (24) while the other has an armature (30) attracted by the electromagnet (29), and further characterised in that the catch plate has also a spring (31), one of whose ends is attached to the catch plate (27) while the other end is attached to the support (28) of the electromagnet (29).
  7. The winch of claims 5 or 6, characterised in that the elastic element which pulls the single-arm lever (24) to the position where it acts on the double-arm lever (19) thus releasing the pawl (12), takes the form of a coil spring (25), one of whose ends is attached to the single-arm lever (24) while the other end is attached to a catch in the mounting support (2).
  8. The winch of each of claims from 1 through 7, characterised in that the pawl (12) supporting the yoke (9) is kept in the position of engagement by an elastic element which takes the form of the first coil spring (16), whereas the elastic element which pulls the yoke (9) to the position of disengagement takes the form of the second coil spring (17), one of whose ends is attached to the yoke (9) while the other end is attached to a catch in the mounting support (2), said second spring skewed at an acute angle relative to the axis of the worm shaft (8).
  9. The winch of each of claims from 1 through 8, characterised in that the worm shaft (8) is mounted in the swing yoke (9) whose axis of rotation is included in the space limited by two parallel planes, both perpendicular to the plane of the winch mounting and including - the first one - the axis of rotation of the worm wheel (7) and the second one - the axis of rotation of the worm shaft (8) in the position of engagement and further characterised in that the worm shaft (8) is pressed against the worm wheel (7) in the position of engagement by a pawl (12) supporting the yoke (9), having an outrigger (14) in the form of a double-arm lever with mutually perpendicular arms, whereas the element releasing the pawl (12) takes the form of a double-arm lever (19) with arms perpendicular to each other and whose axis of rotation (18) coincides with the axis of rotation of the yoke (9).
  10. The winch of claim 9, characterised in that the yoke (9) has a protrusion (10) with a thrust surface (a) positioned at the other end of the diagonal of the yoke (9), relative to the axis of rotation of the yoke (9).
  11. The winch of each of claims from 9 through 10, characterised in that the pawl (12), taking the form of U section, is equipped with rollers (15) positioned inside the U section and resting on the thrust surface (a) of the protrusion (10) of the yoke (9), wherein the pawl (12) is pivoted on a pin (13).
  12. The winch of each of claims from 1 through 8, characterised in that the worm shaft (108) is mounted in the swing yoke (109) whose axis of rotation is positioned outside the space limited by two parallel planes, both perpendicular to the plane of the winch mounting and including - the first one the axis of rotation of the worm wheel (107), and the second one - the axis of rotation of the worm shaft (108) when it is in the position of engagement; and is pressed against the worm wheel (107) and kept in the position of engagement by the pawl (112) supporting the yoke (109) and wherein the pawl (112) has an outrigger (114) in the form of a single-arm lever, whereas the element releasing the pawl (112) takes the form of a double-arm lever (119) with both arms positioned as extensions of each other.
  13. The winch of claim 12, characterised in that the pawl (112) takes the form of U section attached to T section, and along with the outrigger (114) is mounted so as to move around the axis of rotation, which is a pin (113), wherein the pawl. (112) has two thrust surfaces perpendicular to each other, of which one surface is defined by the face ("a1") of the U section and the other surface is defined by the face ("a2") of one of the T section's arms which is positioned parallel to the mentioned U face ("a1").
  14. The winch of each of claims 12 through 13, characterised in that the yoke (109) has rollers (115) resting on thrust surfaces ("a1"), ("a2") of the pawl (112) and the axis of rotation of the rollers (115) is positioned perpendicular to the axis of rotation of the worm shaft (108).
EP96401174A 1995-06-07 1996-05-31 Winch Expired - Lifetime EP0747559B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PL10279995 1995-06-07
PL10279995 1995-06-07
PL10382495 1995-11-30
PL10382495 1995-11-30

Publications (2)

Publication Number Publication Date
EP0747559A1 EP0747559A1 (en) 1996-12-11
EP0747559B1 true EP0747559B1 (en) 2002-05-15

Family

ID=26652528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401174A Expired - Lifetime EP0747559B1 (en) 1995-06-07 1996-05-31 Winch

Country Status (6)

Country Link
EP (1) EP0747559B1 (en)
AT (1) ATE217676T1 (en)
BG (1) BG207Y1 (en)
CZ (1) CZ5411U1 (en)
DE (1) DE69621187D1 (en)
HU (1) HU1479U (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778648B1 (en) * 1998-05-15 2000-08-04 Materiel Et Outillage Rationne WINCH FOR TENSIONING A CABLE OF AN ASSEMBLY AS OPENING, SECURITY DEVICE AND INSTALLATION PROVIDED WITH THE WINCH
CN112697106B (en) * 2020-12-21 2023-03-28 西北工业大学 Cable position inclination angle real-time measuring device for hoisting winch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605620B1 (en) * 1986-10-24 1989-06-23 Dupuy Claude WINCH FOR AUTOMATIC MOVEMENT OF A MOBILE PANEL

Also Published As

Publication number Publication date
BG100601U (en) 1997-04-30
DE69621187D1 (en) 2002-06-20
CZ5411U1 (en) 1996-11-27
HU1479U (en) 1999-01-28
HU9600152V0 (en) 1996-07-29
EP0747559A1 (en) 1996-12-11
BG207Y1 (en) 1998-03-31
ATE217676T1 (en) 2002-06-15

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