EP1329579A1 - Lock fitting for barn door - Google Patents

Abstract

The locking system for a door comprising upper and lower opening halves, consists of a receiver mechanism (21) on a metal strip on the the upper edge of the lower half-door that incorporates a pin (20) engaging with a carrier (19) on the lower edge of the upper half-door which is actuated by the main lock mechanism (9). It has a block (34) on the upper edge of the lower half-door that protects the pin and the driver, preventing attempts to break in by separating the two door-halves.

Description

The invention relates to a door locking fitting. farmer with a top leaf and a leaf lower, said fitting being provided with a receiving mechanism provided suitable for being recessed in a rebate groove of the upper cross member of the lower leaf and comprising a finger able to cooperate with a coach doing rebate projection of the lower cross member of the leaf higher and corresponding to a transmission mechanism on which acts, through an operating rod, a mechanism main control associated with said upper leaf.

We already know many fittings of locking likely to equip farm doors, in recalling, in this regard, that such a door breaks down into a upper leaf and a lower leaf which, if they are manipulated together through a latch which comes to secure their cross member at the height of their junction plane, the swinging top must still be able to open regardless of the bottom leaf.

This obviously poses the problem of controlling locking and unlocking of these leaves. In particular it would be particularly restrictive if the locking of the lower leaf had to be ordered regardless of the locking of the upper leaf.

For this, locking fittings have been designed, one of which embodiment is described in document FR-A-2,807,464 and which is in the form of a lever or lever-bolt having a main control mechanism which comes accommodate a housing formed in a recessed groove of the front pillar corresponding to the upper leaf of the door farmer.

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 housing of the main control mechanism is returned, through a bevel gear, on a transmission mechanism taking position in a rebate recess groove the lower cross member of this upper leaf. Such a mechanism transmission includes a trainer, in the form of a fork, projecting from a headrest and adapted to engage on a drive finger of a receiving mechanism formed in a rebate groove in the upper crossmember of the lower leaf.

More particularly, this training finger is connected to a operating rod extending under the headrest of this mechanism receiver, which operating rod is extended through a corner gear, in a rabbet groove along the amount before this lower leaf, to come act on provided locking members capable of cooperating, again, with keepers arranged on the sleeping frame.

It is easy to understand, under these conditions, that by acting on the main drive mechanism for the lever or lever-bolt of the upper leaf, the movement communicated to the rods of maneuver is reflected on those of the lower leaf, so that it can be locked or unlocked simultaneously with this upper leaf. However, the configuration in form of a drive fork of the transmission mechanism equipping the lower cross member of the upper leaf allows its clearance from the drive finger of the mechanism receiver on the upper leaf inferior. Thus, said upper and lower leaves can be individually rotated one by one to the other after unlocking the latch which secures, moreover, up to their cross located at level of their junction plane.

Note that this transmission of a controlled movement by a main control mechanism fitted to a first beating on a second leaf, this through a coach and a training finger, has been known for a long time, in particular through the depositor's manufacturing, this in the field of juxtaposed double doors or windows, one of which, said to be principal, apart from being pivoted around a the vertical axis is also tilting.

In particular, the problem posed in this case consists in that, in the absence of a central mullion, there is place of ensuring, when the main leaf is ordered in tilting, that the secondary leaf, also called fixed, is well kept locked on its sleeping frame. Conversely, when it is desired to open the door completely or window, a command on the locking mechanism, in especially the cremone bolt or bolt lock, fitted to the leaf main, must still allow the unlocking of this leaf fixed.

In the end, there again this lever or lever-bolt which is provided, in rebate, the main leaf, acts, at through an operating rod, on a coach in the form a projecting fork in rebate of the upright before this main wing, so as to engage on a finger of a receiving mechanism, often in the form of a angle gear, fitted to the bottom corner of the leaf secondary. Thus, this training finger, in conjunction with the bead of the corner gear, is likely to reflect a movement communicated by the main control mechanism on at least one rebate locking member of the cross member lower of the fixed leaf, provided capable of cooperating with a keeper arranged in correspondence on the lower cross member of the frame sleeping.

Finally, through this intermediary, the movement likely to be communicated to the main control mechanism of the cremone bolt or cremone bolt can be broken down into several time, one of which causes opening by pivoting, exclusively, from the main leaf, another opening tilting and one last total opening of the window is to say that it leads to the unlocking, at the same time, of the leaf main and auxiliary leaf.

If a double casement window fitted with this type of fitting locking is generally located in height and, therefore, little accessible from the outside, it is not the same with a farm gate where the junction plane between the upper leaf and the lower leaf is at breast height and constitutes, therefore, a privileged point of aggression in the event of an attempt burglary.

Indeed, in these cases a shark is particularly tempted to act, passing by the rebate, on the mechanisms of the fitting locking connecting, through their cross, respectively lower and upper, the leaves of the farm gate. In short, the coach and the finger in the rebate drive of these sleepers constitute particularly vulnerable and easily accessible organs from outside the door.

The present invention is intended to respond to this problem through a protective device intended, precisely, to prevent accessibility to the coach and the finger while remedying, moreover, the problem of the rupture of the seal created by these rebates of these lower and upper crosspieces of said leaves.

To this end, the invention relates to a locking fitting for farm door with an upper leaf and a lower wing, said fitting being provided with a mechanism intended receiver capable of being embedded in a groove in rebate of the upper cross member of the lower leaf and having a training finger capable of cooperating with a coach protruding into rebate of the crosspiece lower of the upper leaf and corresponding to a mechanism transmission on which acts, through a rod operation, a main control mechanism associated with said upper wing, characterized in that it comprises still a seal forming a protective casing provided capable of being applied in rebate of the upper cross member of the leaf lower and provided with a recess for the reception, with a functional play, of the training mechanism finger, said casing, on the one hand, defining on the side external to the door and perpendicular to the rebate plane, a continuous wall for protecting said training finger and, on the other hand, comprising on the internal side an opening for communication with said obviously to allow engagement, on or, depending on case, in this training finger, of the coach associated with the transmission mechanism of the upper leaf.

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

The advantages which flow from the present invention consist, essentially, in that the seal forming the protective casing prevents any direct action on the drive finger or on the coach at the hotspot that constitutes the rebate plane between the upper leaf and the lower leaf of a farm gate.

• la figure 1 est une représentation schématisée d'une porte fermière ;
• la figure 2 est une représentation schématisée d'une ferrure de verrouillage susceptible d'équiper une telle porte fermière, les battants supérieur et inférieur de cette dernière étant représentés en traits discontinus ;
• la figure 3 est une représentation schématisée et partielle d'un mécanisme récepteur d'où fait saillie un doigt d'entraínement prenant position dans l'évidement d'un joint formant carter de protection, conforme à l'invention.

The present invention will be better understood on reading the description which follows and the attached drawing relating to an embodiment.

• 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, according to the invention.

As shown in Figure 1, the present invention has relates to a locking fitting 1 for farm door 2 which stands out in that it has a top leaf 3 and a lower leaf 4, the upper leaf 3 being susceptible to be operated independently of the latter.

As shown in Figure 2, such a fitting of locking device 1 comprises a first assembly 5 coming to equip the upper wing 3 and a second assembly 6 intended to be associated with the lower leaf 4. They are able to cooperate with each other so that through a single action on a main control mechanism of the fitting, locking or unlocking with respect to the frame 7, both of the upper leaf and the lower leaf of this farm gate 2.

Thus, in the rebate of the front upright corresponding to the leaf upper 3 is recessed, in a recess groove appropriate, the housing 8 corresponding to said mechanism main command 9 capable of acting on one or more operating rods 10 extending above and / or below this case 8 at the back of a headrest 11. The movement communicated to this or these operating rods 10 is retransmitted, in particular, on one or more organs of locking 12 able to cooperate with keepers arranged in correspondence on the frame 7.

Furthermore, the operating rod 10 extending under said box 8 acts, through a bevel gear 13, on a transmission mechanism 14, substantially a rod operation 15 extending at the rear of a headrest 16 taking position in a rebate 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 rebate 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 rebate groove 22 of the upper cross member 23 (visible figure 1) corresponding to the lower leaf 4.

Again, the drive finger 20 projects from a headrest 24 under which extends an operating rod 25 with which he is made integral. One understands, in these conditions, that through cooperation between coach 19 and drive finger 20, an action on the operating rod 10 by the main control mechanism 9 generates a displacement of the operating rod 25 of said mechanism receiver 21.

Finally, this displacement communicated to the operating rod 25 is passed on, through a bevel gear 26, to another operating rod 27 extending in rebate along the front upright 28 of the lower leaf 4, this again for act on one or more locking members 29 capable of cooperate with strikes that the frame 7 comprises.

Note that, as the case may be, the coach 19 or the 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 training finger 20 or the coach 19 configured, him, in the form of a roller or roller. So, after unlocking a fastening lock 30, normally, the upper leaf 3 to the lower leaf 4 through their cross members, 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 is shown in Figure 3, this locking fitting 1 includes a seal forming a protective casing 34 provided capable of be applied in rebate 22 of the upper cross member 23 corresponding to the lower leaf 4. This seal 34 includes a recess 35 for the housing, with a functional play, of the finger 20 corresponding to the receiving mechanism 21.

Ultimately, this joint 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 training finger 20, of the associated coach 19 to the transmission mechanism 14 of the upper leaf 3.

Advantageously, this seal forming a protective housing 34 constitutes the extension, to the right of said training finger 20, of the seal, lip or other, that comprises usually rebate, as the case may be, the cross member upper 23 of the lower leaf 4 or the crosspiece lower 18 of the upper leaf 3.

Thus, this seal 34 is made of a semi-rigid material of so that through its flexibility it can fill the seal function assigned to it. This relative flexibility still allows him, in the event of an attempt of breaking in, absorbing any shocks that could be administered to reach said training finger 20 and his coach 19.

In particular, this seal forming a protective housing 34 is made of a suitable synthetic material.

It advantageously comprises fixing means 40 in rebate 22 of the upper cross member 23 of the lower leaf 4. Substantially, such fixing means 40 consist in openings 41 for the passage of fixing screws.

Preferably, through these fixing means 40 ce seal forming protective casing 34 is provided capable of being attached to 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 authorizing the latter to move following a race corresponding to the locking and unlocking command which can be communicated to him by the coach 19 through the main control mechanism 9 of the locking fitting 1.

Claims (6)

Locking fitting for farm gate (1) comprising an upper leaf (3) and a lower leaf (4), said fitting (1) being provided with a receiving mechanism (21) provided capable of being embedded in a rebate groove ( 22) of the upper crosspiece (23) of the lower leaf (4) and comprising a drive finger (20) capable of cooperating with a driver (19) projecting into the rebate (17) of the lower crosspiece (18) of the upper leaf (3) and corresponding to a transmission mechanism (14) on which acts, through an operating rod (10), a main control mechanism (9) associated with said upper leaf (3), characterized by fact that it also comprises a seal forming a protective casing (34) provided suitable for being applied in rebate (22) of the upper crosspiece (23) of the lower leaf (4) and provided with a recess (35) for receiving , with a functional play, of the drive finger (20) of the mechanism receiving nism (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 drive finger (20) of the coach (19) associated with the transmission mechanism (14) of the upper leaf (3). 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, with lip or other, which comprises , in rebate, as appropriate, the upper crosspiece (23) of the lower leaf (4) or the lower crosspiece (18) of the upper leaf (3). Fitting according to any one of the preceding claims, 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 to protect the drive finger (20). Fitting according to any one of the preceding claims, 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) . Fitting according to claim 4, characterized in that the fixing means (40) consist of openings (41) for the passage of fixing screws. Fitting according to any one of Claims 1 to 3, characterized in that the seal forming the protective casing (34) includes fixing means (40) on the faceplate (24) corresponding to the rebate receiving mechanism (21) ( 22) of the upper crosspiece (23) of the lower leaf (4).

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