EP0252554A2 - Automatischer Türschliesser - Google Patents

Automatischer Türschliesser Download PDF

Info

Publication number
EP0252554A2
EP0252554A2 EP87201217A EP87201217A EP0252554A2 EP 0252554 A2 EP0252554 A2 EP 0252554A2 EP 87201217 A EP87201217 A EP 87201217A EP 87201217 A EP87201217 A EP 87201217A EP 0252554 A2 EP0252554 A2 EP 0252554A2
Authority
EP
European Patent Office
Prior art keywords
door
piston
cam
spring
jumper
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
EP87201217A
Other languages
English (en)
French (fr)
Other versions
EP0252554A3 (en
EP0252554B1 (de
Inventor
Wilhelmus Hubertus Michael Evers
Bernardus Antonius Matheus Franken
Lourens Kodde
Johannes Martines Franciscus Wijsbek
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.)
Chubb Lips Nederland BV
Original Assignee
Chubb Lips Nederland BV
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 Chubb Lips Nederland BV filed Critical Chubb Lips Nederland BV
Publication of EP0252554A2 publication Critical patent/EP0252554A2/de
Publication of EP0252554A3 publication Critical patent/EP0252554A3/en
Application granted granted Critical
Publication of EP0252554B1 publication Critical patent/EP0252554B1/de
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
    • E05F3/04—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
    • E05F3/225—Additional arrangements for closers, e.g. for holding the wing in opened or other position mounted at the bottom of wings, e.g. details related to seals, covers, connections to the wings, embedding in the floor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/624—Arms
    • E05Y2201/626—Levers
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/41—Concealed
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/452—Mounting location; Visibility of the elements in or on the floor or wall
    • 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
    • E05Y2900/132—Doors

Definitions

  • the present invention relates to automatic door-closing devices. More especially the invention is concerned with door-closing devices of the kind commonly referred to as floor springs.
  • the conventional floor spring comprises a unit to be mounted at floor level including a shaft to be coupled to the door so as to turn therewith as the door opens and closes.
  • An energy-accumulating spring is coupled to the shaft via a cam so that as the door is opened the cam turns to compress the spring. In the open position, the spring applies a force to the cam to restore it to its original position, so that when the door is released the cam turns the shaft to close the door once more.
  • Hydraulic damping means are also provided to cushion the closing movement of the door.
  • One aim of the present invention is to provide a device of the above-described character which is arranged so that, after any initial detent action on the door has been overcome, only a minimal force is required to move the door to its normal open position and compress the restoring spring.
  • Such a device will be of particular benefit to the elderly, handicapped or infirm who may have sufficient strength and mobility to "crack" the door a small initial angle but who would have difficulty in moving a door through its full opening angle against the resistance inherent in a conventional floor spring.
  • an automatic door-closing device comprises: a shaft to be coupled to a door so as to turn therewith as the door opens and closes; first cam means coupled to the shaft; first spring means coupled to the first cam means such as to be loaded thereby as the door is opened and to apply a force to the first cam means tending to restore the door to its closed position; second cam means coupled to the shaft; a piston coupled to the second cam means; second spring means acting upon the piston such as to drive it in a first direction in which it applies a force to the second cam means tending to assist the opening movement of the door; closing movement of the door under the force of the first spring means acting through the second cam means to drive the piston in a second direction opposite the first; the piston causing fluid to flow through a circuit in opposite senses when it is driven in said first and second directions; and said circuit including throttling means responsive to the direction of flow through the circuit and adapted to be effective when the piston is driven in its second direction (as the door closes) but to be ineffective, or
  • the illustrated floor spring has a casing 1 in which is borne a shaft 2 with a spigot 3 adapted to fit into a socket in the underside of a swing door, so that the shaft turns with the door as the latter opens and closes to either side of a central position.
  • Cam 4 cooperates with a roller 6 carried at one end of a rod 7 which extends from a restoring spring unit 8, to be more particularly described below.
  • Cam 5 cooperates with a roller 9 borne at an intermediate position on a lever 10 which is pivoted at one end on a pin 11 in the casing and passes beneath the rod 7.
  • the lever 10 carries a roller 12 which cooperates with a rod 13 adapted to extend from a damper/assist unit 14, which will also be more particularly described below.
  • the restoring spring unit 8 is more fully shown in Figures 2 and 3.
  • a coil spring 16 of high stiffness Within its casing 15 is housing a coil spring 16 of high stiffness.
  • One end of this spring engages an abutment plate 17 at one end of the casing 15, and the other end of the spring engages a second abutment plate (not shown) carried by the rod 7 so that the action of the spring is to urge the rod strongly to the right (as viewed in the Figures) to an extended position with respect to the casing.
  • the force with which the spring so acts is adjustable, and can be relieved eg for maintenance, by adjusting the axial position of the plate 17 in the casing 15 by means of four screws 18 threaded through the end of the casing and against which the plate 17 is thrust by the spring.
  • the illustrated unit also has a pivoted latch arm 19 to engage a side roller 20 on the rod 7 under an adjustable spring pressure 21, to provide a detent action against retracting movement of the rod.
  • the damper/assist unit 14 has a casing 22 defining a hydraulic cylinder 23. Within this cylinder is a slidable piston 24, mounted on the rod 13. A coil spring 25 is trapped between the piston and one end of the cylinder, the action of which is to urge the piston rightwards (as viewed in the Figure) to extend the rod 13 from the casing.
  • Figure 4 shows this unit with the rod in a fully extended position, which in practice is not quite reached in operation of the floor spring.
  • the two ends of the cylinder are also connected together through a passage 26 bored in the casing, and the whole of the cylinder 23 and passage 26 is filled with oil.
  • an overflow/accumulator chamber (not shown) for the oil, to compensate for changes in the effective volume of the cylinder 23 as the rod 13 moves in and out, and within the passage 12 is an automatic throttling device 27 which will now be described with reference to Figure 5.
  • the portions of the passage 26 which lead to the throttling device from the right and left hand ends of the cylinder 23 are denoted as 26R and 26L respectively.
  • a conical drilling 28 and the conical head 29 of a jumper 30 which extends to a greater or lesser degree into that drilling.
  • the jumper 30 is itself borne in a block 31 mounted in a cavity 32 in the casing, and is permitted a limited degree of axial movement relative to the block.
  • the jumper has a cylindrical portion 33 which is a sliding fit in the block 31.
  • a pair of cross bores 34 extend diametrically across the jumper, and an axial bore 35 also leads through the jumper from the cross bores 34 to its tail.
  • a pin 36 held by the block 31 extends through one of the cross bores 34.
  • the lower limiting position of the jumper in the block is defined by the abutment of the pin 36 with the flat upper surface of the cross bore 34 within which it lies.
  • the upper limiting position of the jumper in the block is defined by the abutment of the tail of the jumper with the inner end wall 37 of the block.
  • the degree of damping imparted by the throttle 27 can be adjusted by altering the position of the block 31 in the cavity 32 to take the lower position of the jumper towards or away from the drilling 28 as required.
  • the block has a threaded extension 39 by which it can be screwed down or up in the cavity 32.
  • FIG. 6 this shows the profile of the cam 4 which cooperates with the restoring spring unit 8. It is symmetrical about a central axis X to provide equivalent action in both opening directions of the door. Its central part is a depression 40 defining the closed position of the door. From here the profile rises quite steeply to positions approximately 12-15° either side of the axis and then rises gradually to positions slightly beyond 90° either side. Past the latter positions the profile is of constant radius.
  • the operation of the device is as follows.
  • Figure 1 shows the positions adopted when the door is in its central, closed condition.
  • the roller 6 of the restoring spring unit lies in the depression 40 of the cam 4 to resist turning of the shaft 2 and thus opening of the door.
  • the latch 19 acts to resist inward movement of the rod 7 and thus applies an additional restraint on opening of the door. This may be necessary where the door is, for example, exposed to wind pressure, but may be omitted or reduced in other circumstances.
  • the roller 9 of the lever 10 lies on the cusp 41 of the cam 5.
  • the limiting opening angle from which the restoring spring 16 can act to close the door in the illustrated embodiment is approximately 110° - corresponding to the position at which the roller 6 reaches the end of the increasing-profile portion of the cam 4, and at this position suitable stop means will be provided either internally or externally of the floor spring to prevent further movement of the door.
  • any other effective angle can be chosen in this respect by suitable configuration of the cam surface.
  • the roller 9 is initially on the constant-radius portion of cam 5 and the door will therefore have a fast, undamped closing speed until the roller begins to rise up to the cusp 41.
  • the rod 13 is now pushed further back into the unit 14 to damp the final part of the closing movement of the door, the damping reaching a maximum as the roller 9 rises up the steepest part of the cusp 41, which corresponds to movement of the roller 6 into the depression 40 of cam 4, to ensure gentle closure.
  • the flutes 43 of the cam 5 are slightly overcut with respect to the splines (not shown) of the shaft 2 with which they engage, so that there is a small degree of lost angular motion between the shaft and cam.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP19870201217 1986-07-11 1987-06-25 Automatischer Türschliesser Expired EP0252554B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8616922 1986-07-11
GB868616922A GB8616922D0 (en) 1986-07-11 1986-07-11 Automatic door closer

Publications (3)

Publication Number Publication Date
EP0252554A2 true EP0252554A2 (de) 1988-01-13
EP0252554A3 EP0252554A3 (en) 1988-06-08
EP0252554B1 EP0252554B1 (de) 1991-10-09

Family

ID=10600889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870201217 Expired EP0252554B1 (de) 1986-07-11 1987-06-25 Automatischer Türschliesser

Country Status (3)

Country Link
EP (1) EP0252554B1 (de)
DE (1) DE3773552D1 (de)
GB (2) GB8616922D0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2894610A1 (fr) * 2005-12-12 2007-06-15 Lavasseur Systemes Sa Sa Dispositif d'ouverture et de fermeture d'un vantail de porte de type va-et-vient
CN101566028A (zh) * 2008-04-24 2009-10-28 多玛两合有限公司 具有液压延迟关闭的闭门器
US20130081227A1 (en) * 2010-03-29 2013-04-04 Ingersoll Rand Security Technologies Limited Door closer
US9995076B1 (en) 2001-07-13 2018-06-12 Steven M. Hoffberg Intelligent door restraint
US10961761B2 (en) * 2017-06-19 2021-03-30 Fritsjurgens Holding B.V. Pivot door hinge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013100293A1 (de) 2013-01-11 2014-07-17 Eco Schulte Gmbh & Co. Kg Türschließerantrieb

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752627A (en) * 1953-02-26 1956-07-03 George W Houlsby Jr Pivotal door check device
DE1036711B (de) * 1954-04-08 1958-08-14 Ver Baubeschlag Gretsch Co Schliesser fuer die Fluegel von Tueren, insbesondere Bodentuerschliesser
GB1059033A (en) * 1962-09-06 1967-02-15 Stanmore Springs Ltd Improved floor door spring unit
GB1003273A (en) * 1963-03-29 1965-09-02 William Newman & Sons Ltd Adjustable valve means for controlling the flow of a fluid
GB997269A (en) * 1963-06-17 1965-07-07 Tonks Birmingham Ltd Door closers
DE1584237C3 (de) * 1966-11-12 1975-02-13 Vereinigte Baubeschlagfabriken Gretsch & Co Gmbh, 7250 Leonberg Schließer für Pendeltüren
GB1239915A (en) * 1967-05-15 1971-07-21 Stanmore Springs Ltd Improvements in hydraulic check floor springs
GB1192074A (en) * 1967-09-27 1970-05-20 Dormech Doorsprings Ltd Improvements in and relating to Floor Door Springs
DE1948705A1 (de) * 1969-09-26 1971-04-01 Doerken & Mankel Kg Selbsttaetiger Tuerschliesser,insbesondere Pendeltuerschliesser
GB2156950B (en) * 1984-04-04 1988-01-13 Newman Tonks Eng Flow control valve and door closer incorporating such a valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9995076B1 (en) 2001-07-13 2018-06-12 Steven M. Hoffberg Intelligent door restraint
FR2894610A1 (fr) * 2005-12-12 2007-06-15 Lavasseur Systemes Sa Sa Dispositif d'ouverture et de fermeture d'un vantail de porte de type va-et-vient
BE1018429A5 (fr) * 2005-12-12 2010-11-09 Levasseur Systemes Sa Dispositif d'ouverture et de fermeture d'un vantail de porte de type va-et-vient.
CN101566028A (zh) * 2008-04-24 2009-10-28 多玛两合有限公司 具有液压延迟关闭的闭门器
EP2112315A3 (de) * 2008-04-24 2013-12-18 Dorma GmbH + Co. KG Türschließer mit einer hydraulischen Schließverzögerung
US20130081227A1 (en) * 2010-03-29 2013-04-04 Ingersoll Rand Security Technologies Limited Door closer
US10961761B2 (en) * 2017-06-19 2021-03-30 Fritsjurgens Holding B.V. Pivot door hinge

Also Published As

Publication number Publication date
GB2192426B (en) 1989-12-20
GB8616922D0 (en) 1986-08-20
GB2192426A (en) 1988-01-13
EP0252554A3 (en) 1988-06-08
DE3773552D1 (de) 1991-11-14
GB8715980D0 (en) 1987-08-12
EP0252554B1 (de) 1991-10-09

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