EP2025849A2 - Dispositif d'entraînement pour des couvercles d'évent, spécialement pour un volet d'extracteur de fumée - Google Patents

Dispositif d'entraînement pour des couvercles d'évent, spécialement pour un volet d'extracteur de fumée Download PDF

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Publication number
EP2025849A2
EP2025849A2 EP08104940A EP08104940A EP2025849A2 EP 2025849 A2 EP2025849 A2 EP 2025849A2 EP 08104940 A EP08104940 A EP 08104940A EP 08104940 A EP08104940 A EP 08104940A EP 2025849 A2 EP2025849 A2 EP 2025849A2
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EP
European Patent Office
Prior art keywords
links
arm
link
fixed frame
articulation
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Withdrawn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
EP08104940A
Other languages
German (de)
English (en)
Other versions
EP2025849A3 (fr
Inventor
Erhard Rothgangl
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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2025849A2 publication Critical patent/EP2025849A2/fr
Publication of EP2025849A3 publication Critical patent/EP2025849A3/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Withdrawn legal-status Critical Current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
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows
    • E05Y2900/152—Roof windows
    • E05Y2900/154—Skylights

Definitions

  • the subject of the invention is a device driving vent covers, especially for smoke extractor flap, i.e. covers of openings connecting the inside of buildings with the open atmosphere for venting purposes or to let out smoke and gases during a fire.
  • Known smoke extractor flap driving devices consist of a fixed frame arranged on the edge of the venting opening, and a swinging frame to which the vent cover is fixed.
  • the swinging frame is connected with the fixed frame by hinges the axis of which is parallel to one side of the fixed frame and is driven by a link mechanism arranged inside the venting opening between the fixed and the hinged frames.
  • the driving mechanism has an arm connecting its upper end by a base articulation with the fixed frame.
  • the bottom end of the arm is connected by an articulation with the piston head of the actuator.
  • the piston rod end is connected with the swinging frame by an articulation of the cover, which is fixed close to its side opposite to the hinge.
  • a moving support is fastened to the axle of the base articulation serving to stop the cylinder of the actuator at the end of cover opening phase.
  • the arm is resting on the base element of the fixed frame. Then the piston rod is moving out, the articulator swings open to an approximately vertical position at which its cylinder touches the moving support. From then on, when the piston rod moves further out and the cover is being opened, the cylinder tilts together with the arm rotating about the base articulation. When the cover is completely opened, almost half of the actuator cylinder remains inside the venting opening, which situation during a fire can lead to damaging the seals of the actuator.
  • the solution presented in this invention is specific by the structure of the link mechanism of the drive.
  • the arm of the mechanism consists of many links connected together by chain articulations, the links being fitted with bottom stops limiting the relative downward swinging of links to a straight form of the arm, and with upper stops limiting the swinging up of the links, and causing the arm to take the form of an open polygon.
  • the piston actuator is fixed at the end link of the arm in a position reaching down and placing the actuator cylinder close to the arm so as to adhere to all pins of the chain articulations when the arm links are straight, and also so that the cylinder axis meets the axis of the base articulation.
  • the first chain link when the cover is being opened partly to an angle of approximately 45° above horizontal, rests on the base element of the fixed frame.
  • the end link position is above and outside the hinge axis.
  • the piston actuator which is fastened to the end link, is located sideward from the upper edge of the venting opening and much higher than it, thereby considerably easing the outflow of gases to the atmosphere and reducing the thermal load on the actuator.
  • the links have their web cut-out at the ends and their arm wings mate in and out in the subsequent links.
  • the links are connected by articulation pins arranged symmetrically between the edges of the webs being joined.
  • the bottom stops are formed by the upper edges of the internal link arm wings, which in the straight position of the arm rest on the internal surface of the next external link.
  • the upper stops are formed by the adjacent edges of the webs of external and internal links.
  • a further development of the invention consists in fixing the piston actuator to the end link by an actuator articulation on the piston rod cylinder head and by a band hanging on the chain articulation pin of the end link.
  • a still further invention improvement incorporates priority locks between the external and internal links.
  • Each link is provided with a locking pin sliding in an elongated hole made at the center, between the chain articulations in the arms of the external and internal links.
  • the position of the locking pin in the elongated hole is determined by cams grasping it on both sides.
  • the cams, made on the face edges of the arm wings, have bottom cams made on the link ends at the side of the base articulation, and upper cams on the opposite link ends.
  • a side support is fastened to the fixed frame, the abutment face of which comes into contact with the web of the adjacent link.
  • the position of this link is determined by the upper stops of links connecting it with the first link, which is resting on the rigid element of the fixed frame.
  • Fig. 1 shows the vertical section of the device in closed flap position
  • fig. 2 presents the same section of the device in partly open position of the flap
  • fig. 3 is the side view of the arm unit with the piston actuator
  • fig 4 shows the arm elements in exploded view
  • figures 5, 6 and 7 are successively the cross-sections of the arm in the section lines marked in fig.4 by A-A, B-B, and C-C
  • figures 8 to 12 present one after the other the characteristic phases of bending the arm in the course of opening the flap after the position shown in fig.2
  • fig.13 depicts the vertical section of the device in fully open flap position.
  • the cover 4 is fixed to the swinging frame 3, which is connected by the hinge 5 with the fixed frame 2 set on flange structure of the venting opening 1.
  • the hinge axis 5 is parallel to one side of the fixed frame 2.
  • the link mechanism of the drive A consists of the arm 7 fixed at the side of the hinge by the base articulation 8 to the fixed frame 2, and of the piston actuator 9 mounted between the end of the arm 7 and the swinging frame 3.
  • the construction of the arm 7 consists of many links: the first link 12, the external links 13a and 13b, the internal links 14a and 14b, and of the end link 16, which are connected together by the chain articulations 15.
  • the cross section of all links - 12, 13a, 13b, 14a, 14b, and 16 - has the shape of the letter "C", the web of which is situated horizontally and pointing up, and the spacing of the arms is alternatively d1 and d2.
  • the web of the links is cut-out at their ends, the arm wings 17 resulting from the cut-outs grasp or penetrate in each other in an alternating way, and are connected together by the chain articulations 15 in the overlapping areas.
  • the chain articulations 15 are symmetrically located between the edges of the webs of the connected links, for example in the center of the spacing between the edges of external link edge 13a and the internal link 14a.
  • the edges of the adjoining webs of the external links 13a, 13b and internal links 14a, 14b form the upper stops 20.
  • All links have also their bottom stops 19, which are formed by the upper edges of the arm wings 17 of the internal links 14a and 14b resting in the vertical position of the arm 7 on the internal surface of the webs of the adjacent external links 13a and 13b.
  • the bottom stops 19 restrict the relative downward swing of the links 12, 13a, 13b, 14a, 14b, 16 to the rectilinear form of the arm 7.
  • the piston actuator 9 is rigidly fastened to the end link 16 by its articulation 10 on the piston rod head of the cylinder and by the band 18 hanging on pin of the chain articulation 15 of the end link 16.
  • the external links 13a, 13b and the internal ones 14a, 14b are interconnected by the priority locks 21. Their task is forcing on the links successive bending of each other according the sequence: 12 -14a - 13a - 14b - 13b - 16 in the opening phase of the cover 4 and the reversed sequence in the closing phase.
  • Each priority lock 21 has a locking pin 22, which is sliding in the elongated hole 23 made centrally between the chain articulations 15 in the arms of the external links 13a, 13b and internal links 14a, 14b.
  • the lengthwise position of the locking pin 22 in the elongated hole 23 is determined by the cams 24 enclosing it from both sides, which are made in the face edges of the arm wings 17.
  • the cams 24 have bottom seats 25 made in the ends of the links 13a, 14b, 13b, and 16, while the ends of the links 12, 14a, 13a, 14b are provided with the upper seats 26.
  • the stiffness of the arm 7 being bent upwards in the vertical plane into an open polygon is enhanced by the side support 27, which is fixed to the upper surface of the fixed frame 2.
  • the abutment edge K of the side support 27 comes into contact with the web of the link 13a, which adjoins it sidewise in its position determined by the upper stops 26 of the links 12, 14a, and 13a connecting it with the first link 12 leaning against the base element 6 of the fixed frame 2.
  • the "opening signal" of the cover 4 initiated manually lub automatically by a smoke or heat sensor, controls the supply valve of the piston actuator 9.
  • the opening sequence of the cover 4 occurr three characteristic phases of its movement:
  • the arm 7 is rectilinear; the cylinder of the piston actuator 9 leans against all pins 15 of the chain articulations.
  • the arm 7 reaches position II, the first link 12 is blocked due to meeting the fixed frame 2 in the point P. That moment occurs when the axis of the piston actuator 9 is inclined at an angle ⁇ of about 60° from a horizontal line, and determines the reference line I, which corresponds to the inclination of the cover 4 of about 45°. Starting from passing the reference line I, begin the phases 2 and 3, when the links of arm 7 start to bend on the chain links 15.
  • the deflection by the next angle ⁇ determined by the upper stops 20 of the internal link 14a and the external link 13a causes the external link 13a web to meet the edge K of the side support 27.
  • the locking pin 22 in the elongated hole 23 of the internal link 14a is getting locked in the upper seat 26 of the first link 12 by the cam 23 on the bottom wing of the arms 17 of the internal link 14a, and at the same time the locking pin 22 in the elongated hole 23 of the external link 13a falls into the upper seat 26 of the internal link 14a.
  • the consecutive deflections of the links by the angle ⁇ are shown in fig. 10, 11, and 12 .
  • the center line of the piston actuator 9 follows the line of the end link 16.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Air-Flow Control Members (AREA)
EP08104940A 2007-07-31 2008-07-31 Dispositif d'entraînement pour des couvercles d'évent, spécialement pour un volet d'extracteur de fumée Withdrawn EP2025849A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL383051A PL383051A1 (pl) 2007-07-31 2007-07-31 Urządzenie do napędu pokrywy otworu wentylacyjnego, zwłaszcza dachowej klapy dymowej

Publications (2)

Publication Number Publication Date
EP2025849A2 true EP2025849A2 (fr) 2009-02-18
EP2025849A3 EP2025849A3 (fr) 2009-09-09

Family

ID=40193503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104940A Withdrawn EP2025849A3 (fr) 2007-07-31 2008-07-31 Dispositif d'entraînement pour des couvercles d'évent, spécialement pour un volet d'extracteur de fumée

Country Status (2)

Country Link
EP (1) EP2025849A3 (fr)
PL (1) PL383051A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107902A1 (fr) 2011-02-11 2012-08-16 Savio S.P.A. Evacuateur de fumée et de chaleur
CN110972004A (zh) * 2018-09-28 2020-04-07 苹果公司 用于存储无线聆听设备的壳体的铰链

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2878883A1 (fr) 2004-12-08 2006-06-09 Parker Hannifin France Sas Soc Dispositif d'actionnement d'un volet ou analogue

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308181A1 (de) * 1993-03-15 1994-09-22 Bayerische Motoren Werke Ag Vorrichtung zum Öffnen und Schließen von verschwenkbaren Flügeln

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2878883A1 (fr) 2004-12-08 2006-06-09 Parker Hannifin France Sas Soc Dispositif d'actionnement d'un volet ou analogue

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107902A1 (fr) 2011-02-11 2012-08-16 Savio S.P.A. Evacuateur de fumée et de chaleur
CN110972004A (zh) * 2018-09-28 2020-04-07 苹果公司 用于存储无线聆听设备的壳体的铰链
CN110972004B (zh) * 2018-09-28 2021-03-12 苹果公司 用于存储无线聆听设备的壳体的铰链、无线聆听设备的壳体及系统
US10986433B2 (en) 2018-09-28 2021-04-20 Apple Inc. Eartips for coupling via wireform attachment mechanisms
US11102563B2 (en) 2018-09-28 2021-08-24 Apple Inc. Attachment mechanism for eartips
US11159869B2 (en) 2018-09-28 2021-10-26 Apple Inc. Eartip with control leak
US11206473B2 (en) 2018-09-28 2021-12-21 Apple Inc. Magnet array for securing wireless listening devices
US11206472B2 (en) 2018-09-28 2021-12-21 Apple Inc. Multi-layer porous shielding
US11540039B2 (en) 2018-09-28 2022-12-27 Apple Inc. Eartips for coupling via wireform attachment mechanisms
US11979703B2 (en) 2018-09-28 2024-05-07 Apple Inc. Eartips for coupling via wireform attachment mechanisms

Also Published As

Publication number Publication date
PL383051A1 (pl) 2009-02-02
EP2025849A3 (fr) 2009-09-09

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