EP0174432A2 - Dispositif pour maintenir en position un ferme-porte - Google Patents

Dispositif pour maintenir en position un ferme-porte Download PDF

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Publication number
EP0174432A2
EP0174432A2 EP85105289A EP85105289A EP0174432A2 EP 0174432 A2 EP0174432 A2 EP 0174432A2 EP 85105289 A EP85105289 A EP 85105289A EP 85105289 A EP85105289 A EP 85105289A EP 0174432 A2 EP0174432 A2 EP 0174432A2
Authority
EP
European Patent Office
Prior art keywords
stop member
control
locking device
closer
spring
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.)
Granted
Application number
EP85105289A
Other languages
German (de)
English (en)
Other versions
EP0174432A3 (en
EP0174432B1 (fr
Inventor
Karl Mettenleiter
Ralf Dr. Storandt
Georg Scheck
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.)
Geze GmbH
Original Assignee
Geze GmbH
Geze Grundstuecks und Beteiligungs GmbH
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 Geze GmbH, Geze Grundstuecks und Beteiligungs GmbH filed Critical Geze GmbH
Priority to AT85105289T priority Critical patent/ATE40844T1/de
Publication of EP0174432A2 publication Critical patent/EP0174432A2/fr
Publication of EP0174432A3 publication Critical patent/EP0174432A3/de
Application granted granted Critical
Publication of EP0174432B1 publication Critical patent/EP0174432B1/fr
Expired 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/223—Hydraulic power-locks, e.g. with electrically operated hydraulic valves
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/104—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with cam-and-slide transmission between driving shaft and piston within the closer housing
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
    • E05F3/222—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones electrically operated
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—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—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/09—Hydraulic actuated checks, closers

Definitions

  • the invention relates to a locking device for door closers with an axially displaceably guided in a receiving space of the closer housing, depending on the movement of the closer shaft actuated, at least partially designed as a hollow cylinder support member, arranged in the receiving space coaxial to the support member stop member, which an inclined surface in the direction of Stop member opposite by means of a spring biased cone supported on the support member, and at least one between the cone and the stop member locking element, which is reversible between a release position, in which it is located in the hollow cylinder portion of the support member, and a blocking position, in which it is between an end Inclined surface of the support member, the cone and the stop member is located.
  • a locking device of this type is known from DE-PS 31 51 498.
  • This known locking device is a purely mechanical device by means of which a door can be locked at a certain opening angle and no controlled release of this locking is provided. If the determination is to be canceled in this known arrangement, then the door must be pushed over, i.e. a force is exerted in the closing direction of the door which is greater than the holding force acting in the latching position, so that the fixing is released and the door is returned to the closed position by the closer.
  • a disadvantage of these known solutions is, on the one hand, that the door stops at any angle, for example between 80 ° and 180 °, although in practice the doors always go as far as possible opened as possible and should remain there.
  • a typical example of this is a wall running at right angles to the door, whereby normally the opened door should always rest against this wall and remain there.
  • it is of considerable disadvantage that the door creeps in the closing direction even with the slightest hydraulic leakage, which can lead to the door protruding from the wall and no longer the desired, full just a few hours after the detection occupies the open position.
  • the object of the present invention is to provide a locking device for door closers, which enables locking in particular only at a predeterminable opening angle, maintains the selected locking position unchanged for any length of time and is electrically controllable for the purpose of releasing the locking. Furthermore, the construction volume of this locking device should be as small as possible and the power consumption of the closer should be as low as possible.
  • the support member is designed as a working piston which is acted upon by the hydraulic pressure in the closer and moves in the receiving space which acts as a damping space
  • the stop member consists of a hollow cylinder in which a magnet unit is provided a control unit is axially displaceable and arranged in the direction of the working piston biased by a spring, that the working piston end of the hollow cylinder is closed by a wall and sealed by this wall, a control plunger for axial displacement of the cone by means of the control unit by the working pressure against the force of the biasing spring and in the resulting end position at a distance from the control plunger, can be determined or released by the magnet unit.
  • the control unit preferably consists of a control sleeve which can be blocked with respect to the hollow cylinder forming the actuating member by means of at least one radially displaceable holding pin which cooperates with an actuating pin, and the actuating pin can be fixed in the position corresponding to the blocking position of the holding pins by means of the magnet unit.
  • a control head acting as a piston is tensioned by means of a hydraulic pressure which is present anyway in the closer and can be released again in a controlled manner via an integrated solenoid valve.
  • Undesired creep effects due to leaks can be completely eliminated by using mechanical catches.
  • a working piston 1 is arranged in the damping chamber 14 of a door closer, which is tubular at least in the region of its free end shown and moves to the right when the associated door is closed in the drawing and the oil present in the damping chamber via valves, not shown displaced the damping space.
  • the damping space also includes all the spaces between the individual parts which are filled with oil, and it should also be pointed out that the entire cross-sectional area of the piston 1 is effective for displacing the oil.
  • a stop element 10 which is in the form of a hollow cylinder and has an outer diameter which allows entry into the tubular part of the working piston 1, is also fixed in the housing 25 and runs coaxially with the working piston 1.
  • the working piston end of the stop member 10 is closed by a wall through which a control tappet 5 connected to the cone 3 is guided in a sealed manner via an O-ring 6.
  • the stop member 10 is screwed into the housing 25 with its outer end, which has a larger diameter, and can be left or fixed in various axial positions are, whereby different detection opening angle b predeterminable are ar. Between the stop member and the housing wall there is a support and sealing part 13, which is also screwed to the housing wall and is sealed via O-rings on the one hand with respect to the housing wall and on the other hand with respect to the stop member 10, approximately halfway through the stop member.
  • a magnet unit 22 which is connected to a control head 7 and is biased in the direction of the working piston 1 by a compression spring 11.
  • the biasing force of the spring 11 is greater than the biasing force of the spring 4 assigned to the cone 3.
  • the feed lines 12 for the magnet unit 22 are led out of the stop element 10 via a suitable bore.
  • control head 7 is sealed with respect to the inner wall of the tubular stop member 10 via an O-ring 8, and a further O-ring seal 9 is provided in the region of the end of the magnet unit 22 facing away from the control head 7.
  • O-ring seal 9 is provided in the region of the end of the magnet unit 22 facing away from the control head 7.
  • bores 15 are provided in the pipe flange of the stop member, which lead to the pressure chamber 14.
  • Fig. 1 the mechanical locking is shown in the switched-off state, which can be seen from the fact that the magnet unit 22 with the control head 7 has moved all the way to the left and has pushed the cone 3 back against the force of the spring 4 via the control plunger 5. Accordingly, the cone 3 cannot exercise any spreading function with respect to the balls 2, which in turn has the consequence that even during a door opening process in which the working piston 1 is moved to the left in the drawing, the balls cannot be moved in the radial direction and therefore none Finding results.
  • F ig. 2 shows the arrangement described in the state of detection.
  • the balls 2 are after the radial Sprei- initially g between a front-side inclined surface of the working piston 1, the cone 3 and the stop member 10, on the one hand ensured by the selected inclined surfaces, that the working piston 1 does not move out of the locking position, ie can run to the right in the drawing, and on the other hand it is still possible to overpress this locking position. If a sufficiently high force is applied to the determined door by hand in the closing direction, then the balls 2 are pressed radially inwards due to the effect of the front oblique surfaces of the working piston 1 with simultaneous evasive movement of the cone 2 and the working piston 1 can move in the closing direction.
  • the magnet unit 22 with the control head 7 is in its right-hand end position in FIG.
  • the M agnetech 22 and the control head 7, characterized in strength in the F. Position shown 2 passes in that, starting from the position according to ig F. 1 opened the associated door and thus the work or . Damping piston 11 has run to the left. The magnet unit 22 and the control head 7 remain in the position according to FIG. 1 during this process, ie a determination is not possible.
  • the magnet unit 22 If the magnet unit 22 is supplied with current and the magnet is energized, the magnet unit with the control head remains in the position shown in FIG. 2, since the ball valve 20 is closed via the actuating plunger 19 acted on the armature 21 and the oil from the pressure chamber 23 cannot expire. Even with the ball valve 20 closed, the volume of the pressure chamber 23, i.e. when the magnet unit 22 moves against the direction of the arrow 18, oil flows into this pressure chamber 23, since an intake valve 16, which seals with an O-ring 17, is formed in the control head 7. The connection to the pressure chamber 14 is created via the holes 15 and 26.
  • the determination is released whenever the current exciting the magnet unit 22 is interrupted so that the valve 20 is opened and as a result the magnet unit 22 is moved to the left with the control head 7 and the control plunger 5 is actuated. It can be released by hand at any time, regardless of the position of the magnet unit 20, since it is only necessary to simply snap the ball 2 into place.
  • FIG. 3 is particularly suitable for floor door closers, wherein a different locking mechanism is used compared to the variant according to FIGS. 1 and 2.
  • the principle of switching the detection on and off corresponds to the principle described with reference to FIGS. 1 and 2.
  • a cam disk 32 with a locking recess 27 is connected in a rotationally fixed manner to the closer axis 30.
  • This cam disc interacts with a locking piston 29 which carries a roller at its free end and which is biased by a spring 34 against the cam disc 32.
  • the biasing spring 34 is supported on an abutment 35, which also carries a guide pin 39 for the locking piston 29. This guide pin 39 simultaneously limits the axial movement of the locking piston 29.
  • the abutment 35 is designed as a piston and sealed against the wall guiding this piston via an O-ring.
  • On the magnet unit 22 with the control head 7 is provided on the side of the abutment 35 opposite the latching unit.
  • the control head 7 delimits a pressure chamber 23, and a connection chamber 36 is formed between the O-ring seals of the control head 7 and the abutment 35, into which a connecting bore 38 opens.
  • the design of the magnet unit 22 and control head 7 corresponds to the embodiment explained with reference to FIGS. 1 and 2.
  • Fig. 4 shows the placement of the arrangement of FIG. 3 in a floor closer.
  • the blind hole for receiving the locking device runs parallel to the spring chamber 37 of the door closer filled with hydraulic fluid, in which a cam disk 31 connected to the closer axis 30 interacts with the closing spring 28 in a known manner.
  • the connecting bore 38 extends between the spring space 37 and the connection space 36.
  • the closer axis 30 is acted upon in the closing direction by the cam disk 31 and the associated spring 28.
  • the provided damping is not shown in the closer according to FIG. 4, but a further cylinder could be provided for this purpose, for example.
  • the determination is effected via the locking cam 32, the roller 33 holding the closer and thus the door via the compression spring 34.
  • the abutment 35 which acts as a piston, can be switched via the magnet unit 22 and the control head 7.
  • the tensioning of the abutment, ie the pressure build-up in the pressure chamber 23 is not effected in the example according to FIG. 4 by the closing damping, but the pressure build-up in the room 23 takes place during the opening process, since a pressure increase occurs in the spring chamber 27 which corresponds to the travel range "a" a hydraulic, also known as throwing insulation opening damping can correspond.
  • the embodiment variant shown in FIG. 5 is preferably intended for floor door closers and works with a mechanical locking device which prevents any creeping effects of the closer.
  • a ball locking mechanism of the mechanical locking device is screwed on or off, via an adjusting sleeve 45, which is screwed to the stop element 10. All moving parts are contained in the interior of this adjusting sleeve 45 and the stop element 10. The adjustment of the sleeve 45 in the axial direction enables the setting of the required door locking angle.
  • a control sleeve 40 is guided axially displaceably and biased by the compression spring 11, which is supported on a rear wall of the adjusting sleeve 45. Between the control sleeve 40 and the stop member 10, a U-ring 41 is provided for sealing.
  • the control sleeve 40 can be mechanically locked relative to the stop element 10, specifically Via retaining pins 43, which are arranged in the region of the free end of the control sleeve 14 and distributed over the circumference and are radially displaceable in corresponding bores in the control sleeve 40. Two or three retaining pins 43 distributed over the circumference are preferably provided. These holding pins 43 can interact with an inner inclined surface 44 on the stop element 10 and they block an axial movement of the control sleeve 40 when they bear against this stop surface 44.
  • the magnet unit 22 is firmly screwed into the control sleeve 40.
  • the electrical supply lines are formed by the cables 53, which are connected to sleeves 52, into which an electrical supply cable can be inserted.
  • an adhesive bolt 46 which can be displaced in the control sleeve 40 and which is screwed to an opening bolt 47 which has at its free end a conically widening part with a footprint 49 which interacts with the holding pins 43.
  • the magnet unit 22 holds the adhesive bolt 46, i.e. current flows through the magnet in the position shown.
  • a comparatively weak extension spring 50 is arranged between the adhesive bolt 46 and an inner ring shoulder of the control sleeve 40.
  • the compression spring 11 which acts against the support ring 48 of the control sleeve 40, presses the stop pins 43 over the inclined surface 44 radially inward so that the mechanical blocking of the control sleeve 40 is released.
  • This radial displacement of the holding pins 43 is made possible by the fact that the adhesive pin 46 is released by the magnet together with the deployment pin 47 and that these holding pins 43 can no longer be held in their radially outer position via the positioning surface 49.
  • the control sleeve 40 moves together with the parts held in it due to the force of the spring 11 to the left, as a result of which the control plunger 5 is also carried along, as a result of which the holding force of the locking balls 2 is released.
  • the force of the spring 11 is always stronger than the force of the compression spring 4.
  • the magnet unit 22 must be supplied with current. However, since it is only a holding magnet, it is not able to tighten the holding pin 46. This would also not be possible since the holding pins 43 are still in the narrower diameter of the stop element 10 in the switched-off position.
  • the holding pins 43 now again block the control sleeve 40 against a movement to the left, i.e. the door is locked again.
EP85105289A 1984-09-14 1985-04-30 Dispositif pour maintenir en position un ferme-porte Expired EP0174432B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85105289T ATE40844T1 (de) 1984-09-14 1985-04-30 Feststellvorrichtung fuer tuerschliesser.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843433891 DE3433891A1 (de) 1984-09-14 1984-09-14 Feststellvorrichtung fuer tuerschliesser
DE3433891 1984-09-14

Publications (3)

Publication Number Publication Date
EP0174432A2 true EP0174432A2 (fr) 1986-03-19
EP0174432A3 EP0174432A3 (en) 1986-10-15
EP0174432B1 EP0174432B1 (fr) 1989-02-15

Family

ID=6245465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105289A Expired EP0174432B1 (fr) 1984-09-14 1985-04-30 Dispositif pour maintenir en position un ferme-porte

Country Status (5)

Country Link
US (1) US4663800A (fr)
EP (1) EP0174432B1 (fr)
JP (1) JPS6178981A (fr)
AT (1) ATE40844T1 (fr)
DE (2) DE3433891A1 (fr)

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WO2015132253A1 (fr) * 2014-03-04 2015-09-11 Stabilus Gmbh Unité piston-cylindre et charnière de porte

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DE3611164C2 (de) * 1986-04-03 1994-12-01 Geze Grundstueck Beteiligung Feststellvorrichtung für Türschließer
DE3801379C2 (de) * 1988-01-19 2002-04-11 Geze Gmbh Mehrflügelige Tür mit einem ersten Flügel mit einer elektrisch betätigbaren Feststelleinrichtung
US4878265A (en) * 1988-09-07 1989-11-07 Dorma Door Controls, Inc. Hold-open mechanism for use with a door closer
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DE4433648A1 (de) * 1994-09-21 1996-03-28 Scharwaechter Gmbh Co Kg Türfeststeller, insbesondere für Kraftwagentüren
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
FR2841586B1 (fr) * 2002-06-26 2007-02-09 Saint Gobain Seva Ferme-porte a amortissement hydraulique
US20040205930A1 (en) * 2003-04-17 2004-10-21 Tan-Cheng Huang Door closer
US20040205931A1 (en) * 2003-04-18 2004-10-21 Tan-Cheng Huang Door closer structure
DE102004002625B4 (de) * 2004-01-16 2012-10-18 Dorma Gmbh + Co. Kg Türschließer
US7316096B2 (en) * 2004-06-30 2008-01-08 Yale Security Inc. Door operator
US20060021189A1 (en) * 2004-07-30 2006-02-02 Johnson Loring M Door closer
CN101305149A (zh) * 2005-11-11 2008-11-12 日本发条株式会社 辅助开门装置
NZ580061A (en) * 2006-07-20 2011-01-28 Shanghai One Top Corp An electromagnetic lock also held by a mechanical means if there is an attempt to force the lock
JP2008038477A (ja) * 2006-08-07 2008-02-21 Panahome Corp 窓装置
CA2842521C (fr) * 2007-04-24 2017-03-07 Yale Security Inc. Ferme-porte
GB0916768D0 (en) * 2009-09-24 2009-11-04 Ingersoll Rand Security Techno A door closer
US9163446B2 (en) * 2010-03-17 2015-10-20 Yale Security Inc. Door control apparatus
US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8527101B2 (en) 2010-04-16 2013-09-03 Yale Security Inc. Door closer assembly
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
US8773237B2 (en) 2010-04-16 2014-07-08 Yale Security Inc. Door closer with teach mode
US8415902B2 (en) 2010-04-16 2013-04-09 Yale Security Inc. Door closer with calibration mode
US8779713B2 (en) 2010-04-16 2014-07-15 Yale Security Inc. Door closer with dynamically adjustable latch region parameters
DE102013210516B3 (de) 2013-06-06 2014-03-13 Geze Gmbh Einzugsvorrichtung für einen Flügel einer Tür oder eines Fensters
DE102013210514B4 (de) 2013-06-06 2020-02-27 Geze Gmbh Einzugsvorrichtung für einen Flügel einer Tür oder eines Fensters
CA2914543C (fr) 2013-06-06 2017-11-21 Geze Gmbh Ferme- porte pour battant de porte ou fenetre
DE102013210515B3 (de) * 2013-06-06 2014-03-13 Geze Gmbh Einzugsvorrichtung für einen Flügel einer Tür oder eines Fensters
DE102013112381A1 (de) * 2013-11-11 2015-05-13 Dorma Deutschland Gmbh Federverstellung für eine Türbetätigungsvorrichtung
DE102014203882B4 (de) * 2014-03-04 2022-03-24 Stabilus Gmbh Kolben-Zylinder-Einheit und Türscharnier mit einer Kolben-Zylinder-Einheit
GB201513274D0 (en) * 2015-07-28 2015-09-09 Freeman & Pardoe Ltd A door closer
JP6427543B2 (ja) * 2016-10-20 2018-11-21 リョービ株式会社 内装式ストップ装置付きのドアクローザ

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Publication number Priority date Publication date Assignee Title
DE2313513A1 (de) * 1970-09-10 1974-10-03 Eaton Gmbh Tuerschliesser
GB1512016A (en) * 1975-05-23 1978-05-24 Barber C Release mechanisms for use with automatic door closers
FR2343112A1 (fr) * 1976-03-03 1977-09-30 Dorma Baubeschlag Ferme-porte automatique
DE2913426A1 (de) * 1979-04-04 1980-10-16 Ver Baubeschlag Gretsch Co Tuerschliesser mit feststellvorrichtung
DE3151498A1 (de) * 1981-12-24 1983-07-14 Geze Gmbh, 7250 Leonberg Mechanische feststellvorrichtung fuer tuerschliesser, insbesondere bodentuerschliesser

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015132253A1 (fr) * 2014-03-04 2015-09-11 Stabilus Gmbh Unité piston-cylindre et charnière de porte

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US4663800A (en) 1987-05-12
DE3568293D1 (en) 1989-03-23
EP0174432A3 (en) 1986-10-15
ATE40844T1 (de) 1989-03-15
EP0174432B1 (fr) 1989-02-15
DE3433891A1 (de) 1986-03-27
JPS6178981A (ja) 1986-04-22

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