FR2468713A1 - AUTOMATIC DOOR CLOSING - Google Patents

Abstract

The invention relates to an automatic door closing equipped with an axis arranged so as to be able to turn in a housing 3, which is arranged for coupling to a door, with at least one cam disc arranged on the door. 'axis of the closure and with at least one pressure roller 18 which is arranged so as to be able to rotate on an axis 19 of a journal 17, which is held on a support 16 urged by a counter spring, which is movable or guided by its side in the housing. The axis 19 together with the pressure roller 18 is maintained so that it can be adjusted and fixed to the support 16 substantially concentrically to the closing axis.

Description

-1 -

  The present invention relates to a farm

  automatic door structure, fitted with a pin arranged

  in order to be able to turn in a case, which is arranged

  created for coupling to a door, with at least one cam disc disposed on the axis of the closure and

  with at least one pressure roller which is arranged so that

  lesson in being able to turn on a pin axis, which is

  held on a support biased by an anti- spring

  gonist, - who is mobile or guided on his side in the

  bootstrap so that the pressure roller moved

  ble under the action of the opposing spring substantially radially to the axis of the closure, bears against the cam disc, so that the pressure roller penetrates into the neutral position of the cam disc corresponding at least approximately to the closed position of the door, in a recess made therein for the purpose of determining the neutral position. Automatic door closings of the aforementioned type are for example known from the applications

  German patent DE-AS 1,142,301 or 2,535,244. The ex-

  end of the axis of the closure projecting from the bot-

  tier is mostly conical flattened or

  also read in the form of a square, in order to

  see being coupled and locked by conformation with

  the door. For manufacturing reasons, the line-

  ment of the flat cone or the square with respect to the disc of

  cam is however subject to significant deviations.

  This leads to a significant manufacturing waste, since only relatively small misalignments

can be tolerated.

  The present invention therefore aims to achieve an automatic closure of

  door of the type indicated so that supply errors

  -2- larger size between the flat cone or the square and

  the cam disc can be tolerated.

  This problem is, according to the invention, resolved

  read by the fact that the axis of the journal, together with the pressure roller, is maintained so as to be able

  be adjusted and fixed on the substantially concentric support

  tracing to the axis of the closure.

  The advantage of the invention lies in part

  particular in that a correction of the neutral position of the door closing is made possible in a simple way, so that even in the case of significant alignment errors between the cam disc and the

  flattened cone, the sides of it can be flattened

  born in desired alignment with respect to the longitudinal axis

nal of the closing boot

  The other characteristics of the invention

  tion, according to which the journal is held so that it can rotate and be fixed in its rotational positions on the support, the shaft carrying the pressure roller is made eccentric relative to the axis of rotation of the journal, the journal is produced on its front surface facing the outside of the case with a conformation locking socket

  for an adjustment tool and finally in the upper side

  laughter of the bootmaker is provided an opening which can be closed by means of a cable gland, through which the adjustment tool can be introduced from the outside into the socket, all these characteristics allow

  make the correction on the door closure

  and result in a favorable mode of execution

from the manufacturing point of view.

  In accordance with the provision according to-

  which opening in the case in the case of the door turned to a prescribed pivoting position -3-

  aligns at least approximately with the axis of rotation

  tion of the journal, in particular in the case of a pi-

  vote of the door of approximately 900, it is ensured that the opening intended for the adjustment of the neutral position aligns with the pin, when it is no longer it-

  even covered by the door or a door rail.

  The trunnion is fixed in its set rotational position by being kept locked on the support caused by pressing adjustment. This characteristic avoids an increased manufacturing cost and takes advantage of the fact that an adjustment of the neutral position is normally carried out once and for all and thus

  wear of the pressed fit is not to be feared.

  The invention further presents the advantages

  following stages. An advantage results from the fact that the

  cement box used for the reception of the farm

  automatic door structure may be concreted in the ground with increased free movement, because the possibility

  additional correction creates a tolerance range

this bigger.

  Another advantage is the possibilities

  multiple implementation capabilities of automatic door closing. In the case of door hinges,

  it is notoriously necessary that the door be pushed

  placed in the closed position against a fixed stop.

  Therefore, the closing mechanism in the po-

  door closing position may not yet have reached its neutral position free of torque

  rotation. On the other hand, in the case of doors without bu-

  tee, as for example in the case of swing doors

  tes, it is necessary that the automatic closing of

  door can align the door in the closed position

  exact measurement; that is, the neutral position without torque coincides with the position of -4-

  -closure of the door. As in each case, the case

  its cement made in the ground receiving the closure

  door automatic is always aligned for reasons

  aesthetic sounds parallel or orthogonally to the door closed position, the closing accessory

  door frame (door rail, etc.) must, within the

  known positive, induce adaptation to these cases of ap-

  plication. With the aid of the correction device according to the invention, the desired preload can on the one hand be adjusted in the case of doors with a stop, but this

  prestressing can also be removed

  mé, so that the door closing and its

  accessories (such as a door rail, etc.) are used.

  without transformation or exchange as well for

doors with and without fixed stop.

  The invention is explained below in detail using a preferred embodiment

  - shown in the accompanying drawings.

  Figure 1 is a top view of

  the axis side part of an automatic door closure

te according to the invention;

  Figure 2 is a section along the line

  gene II-II of Figure 1 with omission of details no

essential for the invention; -

  25. Figure 3 is a longitudinal section

  according to line III-III of Figure 2, also limited

  essential details for the invention.

  In the Figures, the reference number 1 designates a cement box which is concreted in the

  ground. In the cement box 1 is fixed the

  automatic door ture 2. In addition, the shoemaker 3

  of it has protruding fingers 4, which

  tend below-supports 5 which are sealed in the cement box 1. Clamping screws 6 screwed -5- in the supports 5 exert pressure on the fingers 4 and clamping screws 7 screwed in the fingers 4 s '' press on the bottom 8 of the cement box 1. The door closure 2 can thus be tightened in different positions below certain limits

in the cement box 1.

  In the case 3, is arranged so as to be able to rotate in a known manner therefore not shown here in detail, a closure pin 9 whose end protruding from the case is produced-in the form of a flattened cone. Key surfaces 10

  consequently converging upwards in the form of a

  the of the closing pin 9 are aligned in the posi-

  tion shown at right angles to the longitudinal axis 11 of the closure, which corresponds to

  a door opening position of 90.

  On the closing pin 9, a disc of

  cam 12 is also rigidly arranged in rotation

  tion in a manner also known.

  In the case 3, a rod 13 is fixed with its ends in suitable bores 14 and 15. On the median part released from the rod 13 pivots

  a swinging arm 16 which contains on its side a

  rillon 17 for a pressure roller 18, which is received from

  so as to be able to pivot on the median axis 19 of the turret

  lon 17 by means of a needle bearing 20. The

  end parts 21 and 22 of pin 17 are ex-

  centered with respect to the axis 19 and are introduced by press fit into bores 23 and 24 of the oscillating arm 16. The front surface facing the upper side of the case 3 of the pin 17 contains a hexagon head 25 serving as a grip conformal locking for an adjustment tool. In the pivot position shown for the door and

246-8713

  -6- the cam, an opening 26 is provided in the case 3; aligned with the pin 17, through which the adjustment tool, not shown, can be introduced into the hexagon head 25, even when the door closure is mounted. This opening 26 is furthermore closed in a sealed manner with a cable gland 27. On the rear side of the oscillating arm 16, a roller track 28 is formed, on which a roller 29 is pushed under the action of a spring 30,

  which is guided in a bore 31 of the boot 3 and is

  draws fixedly on the case by its end

right not shown.

  The force of the spring 30 thus exerts, in a known manner, a return torque on the cam disc 12 and thus on the closing pin 9, which endeavors to rotate the cam disc 12 in the neutral position not shown. in which the pressure roller 18 enters a recess 32 of the cam disc 12 adapted to its periphery, In this way, the neutral position of the closing pin is in

somehow notched.

  The alignment of the axis of rotation 33 of the pressure roller 18 relative to the longitudinal axis 11 of the closure thus determines the neutral position of the cam disc 12. As this axis of rotation 33, as a result of the eccentric realization of the axis 19, can be moved by twice the eccentricity with respect to the axis of rotation 34 of the pin 17, the axis 19 or

  the axis of rotation 33 can thus be adjusted.

  dirty to the longitudinal axis 11 of the closure by

  rotation of pin 17 pressed in hard rotation. Com-

  me finally the variation of the zero rotation position of the axis 9 of the closure depends on it, we can also say generally that the axis 19 is moved along a track which extends nearly

  thereforeentrically to the axis 9 of the closure.

  The position shown in the Figures of the closing pin 9, the cam disc 12 and the swing arm 16 corresponds to a door opening of 900, because it has been assumed that access to the

  setting 25 was not possible for reasons

  construction and mounting sounds in the closed position of the door. During the transverse movement of the pressure roller 18, it thus rolls along the

  cam disc 12 (see Figure 3) and described accordingly

  quent a movement of displacement corresponding to the

  shape of the cam approximately concentric to the a-

xe 9 of the closure.

  In a type of assembly in which by

  example the longitudinal axis 11 of the closure is per-

  pendulum to the door in the closed position of the latter, it is conceivable that the adjustment tap 25 is accessible in the closed position of the door. In this case (not shown), the pressure roller 18 is located during the adjustment in the recess 32 and drives the cam disc 12 directly in its transverse position, so that the effect of the adjustment is also immediately visible. As a result of its position in the recess 32, the pressure roller 18

  describes an exactly concentric movement

stick to axis 9 of the closure.

  In the Figures is represented, from my-

  niere not detailed, an embodiment in which the pressure roller is arranged on a carriage movable in the longitudinal direction of the closure instead of being by an oscillating arm. The movable mounting according to the invention of the pressure roller on a support of -8- this type leads in this case, so- particularly

  advantageous and of simple realization with the advantages

stated in the preamble.

Claims (4)

R E V E N D I C A T I 0 N S   1. Automatic door closing, equi-   pin of an axis arranged so as to be able to rotate in a case, which is arranged for coupling to a door, with at least one cam disc disposed on the axis of the closure and with at least one pressure roller which is arranged so as to be able to rotate on an axis of a trunnion, which is held on a support biased by an opposing spring, which is movable or guided on its side in the case, so   that the pressure roller, movable under the action of the res-   antagonistic fate substantially radially to the axis of the closure, bears against the cam disc, so that the pressure roller enters the position   cam disc neutral corresponding to at least approx.   ximatively to the closed position of the door, in a recess made therein for the purpose of determining the neutral position, characterized in that the axis (19) together with the pressure roller (18) is held so to be able to be adjusted and fixed on the support (16) substantially concentrically with the locking pin (9).   2. Door closing as claimed.   cation 1, characterized in that the pin (17) is held so that it can rotate and be fixed in its rotational positions on the support (16), in that the shaft (19) carrying the pressure roller (18) is made eccentric with respect to the axis of rotation (34) of the pin (17), in that in addition, the pin (18) is made on its front surface facing the outside of the case (3) with a socket (25)   Locking by conformation for a re-tool   sliding and in that, finally, in the upper side of the housing (3) is provided an opening (26) which can be closed by means of a cable gland (27), through which the adjustment tool can be introduced from the outside in the socket (25).   3. Door closing according to la.revendi- cation 2, characterized in that the opening (26) in the case (3) in the case of the door turned in a   prescribed pivot position aligns at least ap-   approximately on the axis of rotation (34) of the pin (17), in particular in the case of a pivoting of the door around 900.   4. Door closing according to the sell-out   tion 2, characterized in that the fixing of the trunnion (17) in its adjusted position of rotation is ensured by holding locked on the support (16) caused by pressing adjustment.