EP3138985B1 - Dispositif de fermeture d'un battant de porte - Google Patents

Dispositif de fermeture d'un battant de porte Download PDF

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Publication number
EP3138985B1
EP3138985B1 EP16185619.0A EP16185619A EP3138985B1 EP 3138985 B1 EP3138985 B1 EP 3138985B1 EP 16185619 A EP16185619 A EP 16185619A EP 3138985 B1 EP3138985 B1 EP 3138985B1
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EP
European Patent Office
Prior art keywords
cam
locking device
distinguished
fact
per
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.)
Active
Application number
EP16185619.0A
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German (de)
English (en)
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EP3138985A1 (fr
Inventor
Lothar Singer
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.)
Gretsch Unitas GmbH Baubeschlaege
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Gretsch Unitas GmbH Baubeschlaege
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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

Definitions

  • the present invention relates to a locking device for closing a door with the features of the preamble of claim 1.
  • Closing devices are known from the prior art with which an automatic closing of door leaves is possible, for example from the DE 42 38 010 A1 .
  • the problem with such door closers is that a dead center is reached between the cam disk and the spring device, in particular with large opening angles of a door leaf relative to the door frame of approximately 180 °. Therefore, these door closers do not exert any, at least not sufficient closing effect on the door leaf at such opening angles.
  • the door leaf In order to initiate a closing process, the door leaf must be manually in the direction of such locking devices Closing direction can be moved until a sufficient closing effect is exerted on the door leaf.
  • the present invention is based on the object of using simple structural means to enable a reliable and direction-independent closing process, in particular even with large opening angles.
  • Such a configuration of the locking device has the advantage that the cam forms a cam tip which is arranged eccentrically in the first end position and / or in the second end position with respect to the contour of the cam disk. In this way, with a door opening angle of 180 °, the occurrence of a dead center can be avoided, so that a sufficient closing effect is provided even with such a door opening angle.
  • the cam can be folded over with the curve tip into a first end position or a second end position.
  • the tip of the cam can be pivoted back and forth relative to the cam disk, starting from a central position, for example by an angle of 10 °. In the first end position and / or the second end position, further pivoting is prevented by a stop.
  • the cam continues the contour of the cam.
  • the tip of the curve Due to the pivotability of the cam and thus the tip of the curve in two directions, the tip of the curve can be eccentric in both directions, i.e. be arranged away from an opening angle of 180 ° of the closer shaft, so that the locking device can be used without modification or conversion for right-hand and left-hand closing doors.
  • the folding movement of the cam is positively controlled by the role of the spring device. Storage is considerably reduced due to the non-directional locking effect. When buying or installing, there is no longer any risk of mix-ups. Because the opening contour on the closer shaft is continued by the cam from approx. 180 ° door opening angle to approx. 190 ° door opening angle, a sufficient closing effect is provided even with a door opening angle of 180 ° or more.
  • the locking device can be used as a door closer, in particular as a floor spring, as an overlying and / or as a concealed door closer.
  • the cam can be mounted so that it can pivot eccentrically to the longitudinal axis of the closer shaft.
  • a Forced control of the cam by the roller of the spring device is beneficial, since a torque is applied to the cam when there is contact between the roller and the cam and the cam is pivoted into one of the end positions.
  • the cam can be mounted on or in the recess by means of a pivot axis parallel to the longitudinal axis of the closer shaft. This enables even contact between the cam and the roller of the spring device, so that punctual breakouts on the cam and / or roller due to even loading are largely avoided.
  • the cam can be symmetrical along a cam axis. This favors the use of the locking device independent of the direction of closing, since even closing effects can be achieved with right-hand and left-hand closed doors. In this way, the same closing moments can be achieved regardless of the closing direction of a door with the same opening angles.
  • the cam can have a cross section with a basic shape of an isosceles triangle with three sides that are each curved, in particular convexly curved. This allows the contour of the cam to be continued with simple structural means.
  • the two same legs are symmetrical to the cam axis and are used for contact with the roller of the spring device.
  • the third side is also curved, in particular convexly, and forms a stop with the base or the edge of the recess in the cam, preferably in a first position and a second end position of the cam.
  • the cam can be pivoted on both sides at an angle of 15 °, preferably 12 °, more preferably 10 °. This creates a sufficiently eccentric arrangement of the curve tip and thus of the dead point by the cam, so that a sufficient closing effect is provided even with a large door opening angle of 180 °, independent of the closing direction.
  • the cam disk can advantageously be symmetrical along a cam disk axis.
  • the cam disk is designed to be axially symmetrical to the cam disk axis.
  • a further recess can be formed on the protruding section of the cam, on or in which a further cam is pivotably mounted.
  • the presence of a further cam creates a large contact area between the cam and the roller of the spring device. This can be particularly advantageous in the case of doors that are often opened with large door opening angles, since damage, for example punctual breakouts, is largely avoided due to the uniform and large-area load distribution between the cam and roller.
  • the cam and the further cam can advantageously be coupled to one another in a rotationally fixed manner by means of the pivot axis.
  • the cam and the further cam are at the same angle relative to the tip of the curve, so that uniform contact and uniform load introduction between the cams and the roller are promoted.
  • a damping device is provided for damping a rotation of the closer shaft, the damping device acting on the cam disk by means of a roller. Comfortable operation of the locking device is thus made possible, since sudden closing or slamming of a door is avoided.
  • Figure 1 shows a locking device for closing a door, which is designated as a whole by the reference numeral 10.
  • the locking device 10 is designed as an overlying door closer for a door leaf.
  • the locking device 10 is used to close a door (not shown).
  • the closing device 10 has a closer shaft 12, a cam disk 14 connected in a rotationally fixed manner to the closer shaft 12 and a spring device 18 which acts on the cam disk 14 by means of a roller 16 for providing a closing force.
  • the cam disk 14 has a recess 22 on a section 20 protruding relative to the closer shaft 12.
  • a cam 24 is pivotably mounted in the recess 22.
  • the cam 24 forms a curve tip protruding from the recess 22.
  • the recess 22 is designed as a groove.
  • the protruding section has cam disk sections 23a, 23b (see FIG Figure 2 ).
  • a large contact surface for the roller 16 is created by the cam disk sections 23a, 23b. This is particularly advantageous for doors that are opened with large opening angles, but usually not more than 180 °.
  • the cam 24 is mounted eccentrically to the longitudinal axis 26 of the closer shaft 12 so as to be pivotable.
  • the cam 24 is mounted in the recess 22 by means of a pivot axis 28 parallel to the longitudinal axis 26 of the closer shaft 12.
  • the cam 24 is symmetrical along a cam axis 30 (cf. Figure 4 ).
  • the cam 24 has a cross section with the basic shape of an isosceles triangle with three sides 32, 34 and 36 which are each curved, in particular convexly curved.
  • the sides 32 and 34 form the legs of the cam 24 which are symmetrical relative to the cam axis 30.
  • the third side 36 has a greater curvature than the sides 32, 34 and serves as a stop in areas adjacent to the sides 32 and 34. In this case, the side 36 comes into contact in sections with a base or edge 38 of the recess (see Figure 3 ).
  • the cam 24 can be pivoted on both sides by an angle of 10 °. In this case, the pivoting process of the cam 24 is forced to be controlled by the roller 16 of the spring device 18.
  • the side 34 of the cam 24 continues the contour of the cam disk 14 (see FIG Figure 3 ).
  • the dead center is shifted from an opening angle of 180 ° through the side 34 to an opening angle of 190 °. This ensures a sufficient closing effect even with a door opening angle of 180 °.
  • the cam disk 14 is symmetrical along a cam disk axis 40 (see Figure 3 and 4th ).
  • a damping device 42 is provided for damping a rotation of the closer shaft, the damping device 42 acting on the cam disk 14 by means of a roller 44 (see FIG Figure 1 ).
  • the spring device 18 has a spring piston 46 and a compression spring 48.
  • the roller 16 of the spring device 18 is mounted on the spring piston 46.
  • the damping device 42 has a damping piston 50 and a damping valve 52.
  • the roller 44 of the damping device 42 is mounted on the damping piston 50.
  • the locking device 10 also has a housing 54 in which the closer shaft 12, spring device 18 and damping device 42 are arranged.
  • the housing 54 is closed at the end by means of covers 56.
  • the housing 54 is filled with a hydraulic medium.
  • the closer shaft 12 can be driven on the output side, namely at an output-side end 60 (see Figure 2 ) be coupled to a door frame by means of a linkage (not shown).
  • the linkage can for example be guided in a slide rail on the door frame side.
  • Fig. 5 shows an alternative embodiment of the closer shaft 62.
  • the closer shaft 62 has a cam disk 64 connected to the closer shaft 62 in a rotationally fixed manner.
  • the cam disk 64 has a recess 72 on a section 70 protruding relative to the closer shaft 62, on which a cam 24 is pivotably mounted.
  • the cam 24 forms a curve tip protruding relative to the recess 72.
  • cam disk 64 has a further recess 74 on the protruding section 70, on which a further cam 25 is pivotably mounted.
  • the cam 24 and the further cam 25 are identical.
  • the cam 24 and the further cam 25 are coupled to one another in a rotationally fixed manner by means of the pivot axis 28.
  • the pivot axis 28 is parallel to the longitudinal axis 26 of the closer shaft 62.
  • the recess 72 and the further recess 74 each have a base or edge 78 with which the third side 36 of the cam 24 and the further cam 25 come into contact in a first end position and a second end position and form a stop.
  • the protruding section 70 has a cam disk section 76.
  • the cam disk section 76 is located between the cam 24 and the further cam 25.
  • the cam section 76 can also be referred to as a "rib” or "web”.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Claims (9)

  1. Dispositif de fermeture (10) pour la fermeture d'une porte, avec un arbre de fermeture (12, 62), un disque à came (14, 64) relié de manière solidaire en rotation à l'arbre de fermeture (12, 62) et avec un dispositif à ressort (18) permettant la fourniture d'une force de fermeture, dans lequel le disque à came (14, 64) présente sur une partie (20, 70) en saillie par rapport à l'arbre de fermeture (12, 62) un évidement (22, 72), sur ou dans lequel une came (24) est montée pivotante, dans lequel la came (24) forme une pointe de came en saillie par rapport à l'évidement (22, 72) et dans lequel un dispositif d'amortissement (42) destiné à amortir une rotation de l'arbre de fermeture (12, 62) est prévu, dans lequel le dispositif d'amortissement (42) agit au moyen d'un galet (44) sur le disque à came (14, 64), caractérisé en ce que le dispositif à ressort (18) agit au moyen d'un autre galet (16) sur le disque à came (14, 64) et que la came (24) peut pivoter au moyen de l'autre galet (16) dans une première position finale et/ou une deuxième position finale.
  2. Dispositif de fermeture (10) selon la revendication 1, caractérisé en ce que la came (24) est montée pivotante de manière excentrée par rapport à l'axe longitudinal (26) de l'arbre de fermeture (12, 62) .
  3. Dispositif de fermeture (10) selon la revendication 1 ou 2, caractérisé en ce que la came (24) est montée sur ou dans l'évidement (22, 62) au moyen d'un axe de pivotement (28) parallèle à l'axe longitudinal (26) de l'arbre de fermeture (12, 62).
  4. Dispositif de fermeture (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la came (24) est symétrique le long d'un axe de came (30).
  5. Dispositif de fermeture (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la came (24) présente une section transversale avec une forme de base d'un triangle isocèle avec trois côtés (32, 34, 36) respectivement courbés, en particulier courbés de manière convexe.
  6. Dispositif de fermeture (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la came (24) peut pivoter à partir d'une position centrale par rapport au disque à came (14, 64) des deux côtés selon un angle de 15°, de préférence de 12°, plus préférablement de 10°.
  7. Dispositif de fermeture (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le disque à came (14, 64) est symétrique le long d'un axe de disque à came (40).
  8. Dispositif de fermeture (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un autre évidement (74), sur lequel une autre came (25) est montée pivotante, est réalisé sur la partie saillante (20, 70) du disque à came (14, 64).
  9. Dispositif de fermeture (10) selon la revendication 8, caractérisé en ce que la came (24) et l'autre came (25) sont accouplées l'une à l'autre de manière solidaire en rotation au moyen de l'axe de pivotement (28).
EP16185619.0A 2015-09-02 2016-08-25 Dispositif de fermeture d'un battant de porte Active EP3138985B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015006151.6U DE202015006151U1 (de) 2015-09-02 2015-09-02 Schließvorrichtung zum Schließen eines Türflügels

Publications (2)

Publication Number Publication Date
EP3138985A1 EP3138985A1 (fr) 2017-03-08
EP3138985B1 true EP3138985B1 (fr) 2020-12-09

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Application Number Title Priority Date Filing Date
EP16185619.0A Active EP3138985B1 (fr) 2015-09-02 2016-08-25 Dispositif de fermeture d'un battant de porte

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EP (1) EP3138985B1 (fr)
DE (1) DE202015006151U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018109732A2 (fr) * 2016-12-15 2018-06-21 In & Tec S.R.L. Charnière pour le mouvement rotatif d'une porte, d'un volet ou similaire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925570A1 (de) * 1969-05-20 1970-12-03 Doerken & Mankel Kg Selbsttaetiger Tuerschliesser
DE4238010A1 (de) 1992-11-11 1994-05-19 Dorma Gmbh & Co Kg Selbsttätiger Türschließer
DE4239219C2 (de) 1992-11-21 2001-07-26 Dorma Gmbh & Co Kg Selbsttätiger Türschließer
EP0709536B1 (fr) 1994-10-28 2001-07-11 GEZE GmbH Entraínement

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EP3138985A1 (fr) 2017-03-08
DE202015006151U1 (de) 2016-12-07

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