FR2834746A1 - LOCKING FITTING FOR FARM DOOR - Google Patents

Abstract

The invention relates to a locking fitting for a farm door provided with a receiving mechanism (21) fitted, in rebate (22), to the upper crosspiece (23) of the lower leaf (4) and comprising a drive finger (20). able to cooperate with a driver (19) projecting into the rebate (17) of the lower cross member (18) of the upper leaf (3) and corresponding to a transmission mechanism (14) on which a main control mechanism (9 ). According to the invention, this fitting also comprises a seal forming a protective casing (34) provided capable of being applied in the rebate (22) of the upper crosspiece (23) of the lower leaf (4) for the protection of the drive finger ( 20) and his trainer (19) in the event of an attempted break-in.

Description

marginal upstream of the downstream panels.

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  The invention relates to a locking fitting for a farm door comprising an upper leaf and a lower leaf, said fitting being provided with a receiving mechanism prew adapted to be embedded in a rebate groove of the upper cross member of the lower leaf and comprising a finger. even to cooperate with a coach projecting into the rebate of the lower cross member of the upper leaf and corresponding to a transmission mechanism on which acts, through a maneuver rod, a control mechanism

  main associated with said upper leaf.

  We already know many locking fittings capable of fitting farm doors, recalling, in this regard, that such a door breaks down into an upper leaf and a lower leaf which, if they are manipulable together through a latch which comes to secure their crosspiece at the height of their junction plane, the upper leaf must still be able to open independently of the

beating lower.

  This obviously poses the problem of the locking and unlocking control of these leaves. In particular, it would be particularly restrictive if the locking of the lower leaf had to be controlled independently of the locking of the

beating higher.

  For this, locking fittings have been designed, one embodiment of which is described in document ER-A-2,807,464 and which is in the form of a lever or lever-bolt comprising a main control mechanism which comes accommodate a housing formed in a recess groove in the front upright

  corresponding to the upper leaf of the farm gate.

  Through this control mechanism it is possible to act on one or more operating rods extending above and / or below said housing and which, in turn, control locking members capable of cooperating with keepers arranged in

  correspondence on the sleeping frame.

  Furthermore, the movement of the operating rod extending under the casing of the main control mechanism is returned to the

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  through an angle gear, on a transmission mechanism taking position in a recessed groove in the rebate of the lower cross member of this upper leaf. Such a transmission mechanism comprises a driver, in the form of a fork, protruding with respect to a headrest and pre w able to engage on a drive finger of a receiving mechanism formed in a

  rebate groove of the upper cross member of the lower leaf.

  More particularly, this drive finger is connected to a maneuvering rod extending under the headrest of this receiving mechanism, which maneuvering rod extends, through an angle gear, in a rabbet groove along of the front upright of this lower leaf, to come to act on pre-ws locking members able to cooperate, there again, with strikes

arranged on the sleeping frame.

  It is easy to understand, in these conditions, that by acting on the main control mechanism of the cremone bolt or cremone bolt of the upper leaf, the movement communicated to the operating rods is reflected on those of the lower leaf, so that that -this can be locked or unlocked simultaneously with this upper leaf. On the other hand, the configuration in the form of a fork of the driver of the transmission mechanism equipping the cross member: lower of the upper leaf allows its release relative to the drive finger of the receiving mechanism that comprises the upper cross member of the lower leaf. Thus, said upper and lower leaves can be controlled in rotation individually one relative to the other after unlocking the latch which secures them, moreover, at the level of their crosspiece located at

level of their junction plane.

  It will be noted that this transmission of a movement controlled by a main control mechanism equipping a first leaf on a second leaf, this through a trainer and a drive finger, has been known for a long time, in particularly through the depositor's manufacturing, this in the field of doors or windows with two juxtaposed casements, one of which, said to be principal, in dahors to be pivotable about a vertical axis is. in addition, tilting. In particular, the problem posed in this case consists in that, in the absence of a central mullion, it is necessary to ensure, when the main leaf is controlled in tilting, that the secondary leaf, also said to be fixed, is well kept locked on its sleeping frame. Conversely, when the total opening of the door or window is desired, a command on

  the locking mechanism, in particular the lever or lever -

  lock, fitted to the main leaf, must still allow the

unlocking of this fixed leaf.

  In the end, here again, this cremone bolt or cremone bolt which is for w, in rebate, the main leaf, acts, through a maneuver rod, on a coach in the form of a projecting fork in rebate of the upright before this main leaf, so as to engage on a drive finger of a receiving mechanism, often in the form of a bevel gear, equipping the lower angle of the secondary leaf. Thus, this drive finger, in connection with the rod of the angle gear, is capable of reflecting a movement communicated by the main control mechanism on at least one rebate locking member of the lower cross member of the fixed leaf, provided able to cooperate with a strike arranged in correspondence on the cross-member

bottom of the frame.

  Finally, by this intermediary, the movement capable of being communicated to the main control mechanism of the cremone bolt QU cremoneserrure can be broken down into several stages, one of which causes the opening by pivoting, exclusively, of the pri.ncipal leaf, another its tilting opening and a final total opening of the window, that is to say, it leads to the unlocking of both the main leaf and the leaf

auxiliary.

  If a double casement window fitted with this type of locking fitting is generally located high up and, therefore, not very accessible from the outside, the same is not true of a farm gate where the junction plane between the upper wing and the lower wing is at breast height and therefore constitutes a privileged point of aggression in the event of an attempted break-in. Indeed, in these cases a sourLin is particularly tempted to act, passing through the rebate, on the mechanisms of the locking fitting connecting, through their crosspiece, respectively lower and upper, the leaves of the farm gate. In short, the trainer and the rebate drive finger of these crosspieces constitute particularly vulnerable parts and

  easily accessible from outside the door.

  The present invention seeks to respond to this problem through a protective member intended, precisely, to prevent accessibility to the trainer and to the training finger while at the same time remedying the problem of the rupture of the seal created by the latter in the rebate of these crosspieces

  lower and upper of said leaves.

  To this end, the invention relates to a locking fitting for a farm door comprising an upper wing and a lower wing, said fitting being provided with a receiving mechanism provided capable of being embedded in a rebate groove in the upper cross member of the lower wing. and comprising a drive finger capable of cooperating with a coach projecting into the rebate of the lower cross member of the upper leaf and corresponding to a transmission mechanism on which acts, through a maneuvering rod, a main control mechanism associated with said upper leaf, characterized in that it also comprises a seal forming a prow protective casing capable of being applied in the rebate of the upper cross member of the lower leaf and for a recess for receiving, with a functional clearance, the receiving finger of the receiving mechanism, said casing, on the one hand, defining on the external side the door and perpendicular to the rebate plane, a continuous wall for protecting said drive finger and, on the other hand, comprising on the internal side an opening for communication with said recess to allow engagement, on or, as the case may be, in this drive finger, from the trainer associated with the transmission mechanism

of the upper leaf.

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  Advantageously, the seal forming a protective casing is designed in a semi-rigid material to constitute, at the height of said drive finger, the extension of the seal fitted in rebate, as the case may be, the upper cross member of the lower leaf and / or the lower cross member of the upper leaf of the farm gate, while providing sufficient mechanical resistance to prevent access to said drive finger while acting on the

  through the rebate from the outside of the farm gate.

  The advantages which result from the present invention consist essentially in that the seal forming the protective casing prevents any direct action on the drive finger or even on the coach at the nerve point which constitutes the rebate plane between the fighter

  upper and lower leaf of a farm gate.

  Other objects and advantages of the present invention

  will appear during the description which follows relating to

  to an embodiment given by way of indicative and nonlimiting example.

  Understanding this description will be made easier by

  referring to the attached drawing in which: - Figure 1 is a schematic representation of a farm gate; - Figure 2 is a schematic representation of a locking fitting capable of fitting such a farm door, the upper and lower leaves of the latter being shown in broken lines; - Figure 3 is a schematic and partial representation of a receiving mechanism from which protrudes a drive finger taking position in the recess of a seal forming a protective casing, in accordance with

the invention.

  As shown in FIG. 1, the present invention has a locking fitting 1 for a farm door 2 which is distinguished in that it comprises an upper leaf 3 and a

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  lower leaf 4, the upper leaf 3 being capable of being

  man_uvre independently of the latter.

  As shown in FIG. 2, such a locking fitting 1 comprises a first assembly 5 fitted to the upper leaf 3 and a second assembly 6 intended to be associated with the lower leaf 4. They are able to cooperate with one the other so that through a single action on a main control mechanism of the fitting, it results in the locking or unlocking with respect to the frame 7, both, of the

  upper leaf and lower leaf of this farm door 2.

  Thus, in the rebate of the front upright corresponding to the upper leaf 3 is embedded, in a suitable embedding groove, the housing 8 corresponding to said main control mechanism 9 capable of acting on one or more operating rods 10 extending au- above and / or below this housing 8 at the rear of a headrest 11. The movement communicated to this or these maneuver rods 10 is retransmitted, in particular, to one or more locking members 12 able to cooperate with strikes

  corresponding arrangements on the frame 7.

  Furthermore, the operating rod 10 extending under said housing 8 acts, through an angular gear 13, on a transmission mechanism 14, substantially a operating rod 15 extending at the rear of 'a headrest 16 taking position in a recessed groove 17 of the lower cross member 18 of the upper leaf 3. More particularly, through said operating rod 15 is driven a coach 19 protruding from the headrest 16 , in the rabbet 17 of this lower cross member 18, this so as to cooperate with a drive finger 20 of a receiving mechanism 21 provided capable of being embedded in a rabbet groove 22 of the upper cross member 23 visible in FIG. 1) again to the lower wing Again, the drive finger 20 protrudes relative to a faceplate 24 under which extends a rod 25 man_uvre which it is made integral. It is understood, under these conditions, that through the cooperation between the coach 19 and the finger

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  drive 20, an action on the operating rod 10 by the main control mechanism 9 generates a displacement of the

  operating rod 25 of said receiving mechanism 21.

  Finally, this movement communicated to the operating rod S 25 is passed on, through an angular gear 26, to another operating rod 27 extending in rebate along the front upright 28 of the lower leaf 4, this , here again, to act on one or more locking members 29 capable of cooperating with

  keepers in the frame 7.

  It will be noted that, as the case may be, the coach 19 or the drive finger 20 is configured in the form of a fork allowing its engagement, through a displacement perpendicular to the plane of the upper 3 and lower 4 leaves on , respectively, the drive finger 20 or the driver 19 configured, for its part, in the form of a roller or roller. Thus, after unlocking a fastening bolt, normally, the upper leaf 3 to the lower leaf 4 through their crosspieces, respectively, lower 18 and upper 23, said upper leaf 3 can be

  operated independently of the lower leaf 4.

  More particularly, according to the invention and as shown in FIG. 3, this locking fitting 1 comprises a seal forming a protective casing 34 provided capable of being applied in the rebate 22 of the upper cross member 23 corresponding to the lower leaf 4. This gasket 34 has a recess 35 for housing, with a functional clearance, of the drive finger 20

  corresponding to the receiving mechanism 21.

  In the end, this seal defines, on the side 36 external to the door 1 and perpendicular to the plane of the rebate 22, a continuous wall 37 for protecting said drive finger 20, while on the internal side 38 it has an opening for communication 39 with said recess 35 for engagement, on or in this drive finger 20, of the coach 19 associated with the

  transmission 14 of the upper leaf 3.

  Advantageously, this seal forming a protective casing 34 constitutes the extension, in line with said drive finger 20, of the seal, lip or other, that usually comprises

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  in rebate, as the case may be, the upper cross member 23 of the lower leaf 4 or else the lower cross member 18 of the upper leaf 3. Thus, this seal 34 is made of a semi-rigid material so that through its flexibility it can fulfill the function of seal assigned to it. This relative flexibility still allows it, in the event of an attempted break-in, to absorb any shocks that could be administered to it to reach

  said drive finger 20 and its trainer 19.

  In particular, this seal forming a protective housing 34

  is made of a suitable synthetic material.

  I1 advantageously comprises fixing means 40 in

  rebate 22 of the upper cross member 23 of the lower leaf 4.

  Substantially, such fastening means 40 consist of

  openings 41 for the passage of fixing screws.

  Preferably, through these fixing means 40, this seal forming a protective casing 34 is provided capable of being attached.

  on the headrest 24 corresponding to the receiving mechanism 21.

  To return to its recess 35, it is dimensioned, in the axial direction, to receive the drive finger 20 while allowing the latter to move in a stroke corresponding to the locking and unlocking command which can be communicated to it by the trainer 19 through the control mechanism

  main 9 of the locking fitting 1.

  Although the invention has been described in connection with a particular embodiment, it is understood that it is in no way limited thereto and that there can be made various modifications to the forms, materials and combinations of these. various elements without

  for that to move away from the framework and the spirit of the invention.

Claims (6)

claims   1. Locking fitting for farm door (1) comprising an upper leaf (3) and a lower leaf (4), said fitting (1) being provided with a receiving mechanism (21) prew able to be embedded in a groove in rebate (22) of the upper cross member (23) of the lower leaf (4) and comprising a drive finger (20) capable of cooperating with a driver (19) projecting in rebate (17) of the lower cross member (18 ) of the upper flap (3) and corresponding to a transmission mechanism (14) on which acts, through a control rod (10), a main control mechanism (9) associated with said upper flap ( 3), characterized in that it also comprises a seal forming a protective casing (34) provided capable of being applied 1S in rebate (22) of the upper crosspiece (23) of the lower leaf (4) and provided with a recess (35) for receiving, with functional play, the drive finger (20) of the receiving mechanism (21), said seal (34), on the one hand, defining, on the external side (36) to the door (2) and perpendicular to the rebate plane (22), a continuous wall (37) for protecting said drive finger (20) and, on the other hand, comprising, on the internal side (38), an opening (39) for communication with said recess (35) to allow engagement on or, as the case may be, in this finger of en1: raitement (20) of the trainer (19) associated with the mechanism of   transmission (14) of the upper leaf (3).   2. Fitting according to claim 1, characterized in that the seal forming a protective casing (34) constitutes the extension, in line with said drive finger (20), of a seal, lip or the like, that comprises, in rebate, as appropriate, the upper crosspiece (23) of the lower leaf (4) or the   lower cross member (18) of the upper leaf (3).   3. Fitting according to any one of the claims   above, characterized in that the seal forming the protective casing (34) is made of a semi-rigid material, in particular of a defined synthetic material capable of ensuring the function of   seal and protect the drive finger (20).   4. Fitting according to any one of the claims   previous, characterized in that the seal forming the protective casing (34) comprises fastening means (40) in rebate   (22) of the upper crosspiece (23) of the lower leaf (24).   5. Fitting according to claim 4, characterized in that the fixing means (40) consist of ouve.rtures   (41) for the passage of fixing screws.   6. Fitting according to any one of claims 1 to 3,   characterized by the fact that the seal forming the protective casing (34) comprises fixing means (40) on the faceplate (24) corresponding to the rebate receiving mechanism (21) (22) of the