FR2786803A1 - CREMONE TYPE LOCKING FITTING - Google Patents

Abstract

The invention relates to a locking fitting of the cremone type (1), comprising a housing (2) accommodating a drive mechanism (3) for controlling the movement of at least one operating rod (4, 5). , on this drive mechanism (3) being able to act as a user for locking or unlocking the fitting, in particular by means of a handle or a control button and / or an element This fitting is characterized by the fact that said housing (2) comprises a breakable and / or retractable locking member (14) to temporarily immobilize the operating rod (s) (4, 5) by acting on at least one part (6) of the drive mechanism (3), at least until the first command passed on to the latter by the user.

Description

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  The invention relates to a cremone bolt type locking fitting comprising a housing accommodating a drive mechanism for the movement control of at least one operating rod, on this drive mechanism being able to act a user for locking and unlocking the fitting, in particular by means of a handle or a button

  command and / or a key element.

  The present invention relates to the field of building hardware and relates, in particular, to fittings of

locking mechanism.

  In this regard, these cremone bolts usually include a casing designed to accommodate a drive mechanism on which the user is able to act by means of a handle or a button.

  control, if necessary, again, using a key element.

  In fact, the movement provided by the user is reflected by said drive mechanism on one or more rods of

  maneuver extending above and / or below said housing.

  Note, in this regard, that such operating rods can extend in the perimeter of the opening of a door, window or the like, this through angle references. Under such conditions and through appropriate locking members, they allow perimeter locking of the door, window or the like, or even the selection of different opening modes of

the latter.

  It is well understood that when assembling the different parts making up a cremone bolt at a joinery, it is essential that these parts are in a well-defined configuration, either locking or unlocking, of the cremone bolt for ability to adjust their positioning by

compared to others.

  This is still essential in the case where the operating rods must be cut lengthwise. It is indeed necessary to take into account, at the time of this cross-checking of the race and the direction of movement likely to be communicated to these rods.

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  to move from their locked position into the

  unlocking position and vice versa.

  Note, in this regard, that such cremones take position, very frequently, in a recess groove formed in the rebate of the opening of a door, window or the like. Furthermore, it is quite usual for a headrest to house the operating rod or rods coming to move in these embedding grooves. In fact, from the outset, that is to say at the end of the manufacture of these cremones, these are pre-equipped with this headrest at the rear of which extend the operating rod or rods, or even the housing accommodating the drive mechanism. For these specific cases, a temporary connection device has been devised intended to make an operating rod, in a determined position, integral with its headrest, the functionality of this device automatically disappearing at the first intervention of the user on the drive mechanism, in particular during the test manipulation carried out by the carpenter once the installation has been carried out and

  the assembly of the parts of the lever on the joinery.

  Such a device is frequently presented in the form of a breakable plastic stud, passing through an orifice in the operating rod and being housed in an opening of suitable section in the headrest. In some cases, a screw-guide device is still attached to the rear of a headrest which passes through an oblong opening provided for this purpose at the level of the operating rod sheltered by this headrest. If the primary function of such a screw guide is to guide the fixing screws enabling the faceplate of the joinery to be secured, it is still often attributed to it the function of guiding the operating rod, but also that temporary blockage in translation of the latter. Again, it is, on this screw guide, for example a deformable tongue provided with a retaining lug which we will be able to coincide with a notch formed at one or the other borders

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  lateral of the light in the operating rod through which it crosses

this screw guide.

  If all of these solutions respond to the problem posed, namely ensuring a temporary immobilization of a rod for operating the lever for locking, their implementation requires the presence of a headrest,

  otherwise this immobilization is impossible.

  In addition, whether the immobilization device is in the form of a plastic pad or is associated with the screw guide, the fitting of this pad or even the manipulation which should be carried out at the level of the screw guide. to make the locking of the rod active, represent, in all cases, additional operations that should be carried out at the manufacturer's

  during the assembly of the parts of the cremone bolt.

  Ultimately, the present invention proposes to respond to the various aforementioned drawbacks by directly associating with the housing a breakable and / or retractable blocking member which is able to ensure temporary immobilization of the rod or rods for operating the cremone bolt by direct action on the

  drive mechanism housed in this housing.

  In short, this rod locking device is made active as soon as the various parts of the drive mechanism are mounted in the cremone bolt housing. In addition, its functionality is independent of any headrest. In this regard, it will be recalled that certain cremones coming to be housed in a "U" groove which include, in rebate, certain joinery designed in metal profile, in particular in aluminum or

  still made of synthetic material, do not include such a headrest.

  To this end, the invention relates to a lock fitting of the lever type comprising a housing accommodating a drive mechanism for the movement control of at least one operating rod, on this drive mechanism being able to act a user for locking or unlocking the fitting, in particular by means of a handle or a control button and / or a key element, characterized in that said housing comprises at least one breakable blockage and / or

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  retractable, to temporarily immobilize the operating rod or rods by action on at least one part of the drive mechanism, at least until the first pass-through command

on the latter by the user.

  The invention will be better understood on reading the description

  which follows with reference to an illustrated embodiment

  in the figures of the attached drawing.

  - Figure 1 is a schematic representation in partial section of the housing of a locking fitting, of the lever type, according to the invention; - Figure 2 is a detail view of Figure 1; - Figure 3 is a schematic representation in elevation of the bottom of the housing housing the locking member provided adapted to act on the follower of the drive mechanism of the

I5 cremone bolt.

  The present invention relates to the field of fittings for

locking mechanism type 1.

  As visible in the figures of the attached drawing, this cremone bolt 1 comprises a housing 2 accommodating a driving mechanism 3 for the control in movement of operating rods 4, 5 extending, respectively above and below

of this housing 2.

  In fact, the user can intervene on this drive mechanism 3 by means of a handle or a control button, or even using a key element of the barrel type, this to bring the rods of operation 4, 5 in their locked and unlocked position. Such a key element can also provide a locking function for the operating rod or rods

in the locked position.

  In the illustrated embodiment, the drive mechanism 3 is essentially limited to a follower 6, the hub 7 of which has an opening 8 for receiving the operating square from a handle or a control button. This follower 6 is also provided with a toothing 9 engaged with a rack 10, here associated, directly with an operating rod 4, so

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  that the rotation control of the follower 6 leads to vertical displacement, in the direction of locking or unlocking, of

this operating rod 4.

  As shown by way of indication in FIG. 1, this drive mechanism 3 can also receive a reversing pinion 11 making it possible to communicate to the operating rods 4, 5 displacements in opposite directions under the action of the follower 6. In particular , beyond this follower 6 the operating rod 4 is extended and receives a second rack 12 engaged with the teeth of the reverse gear 11, while the latter engages, in diametrically opposite manner, on a rack 13 associated with the operating rod 5 extending under

the housing 2.

  I5 As recalled in the introductory part, it is often useful that this or these operating rods 4, 5, which comprises the cremone bolt, are temporarily immobilized in a well-defined position, this in order to facilitate the operations of mounting this cremone bolt on carpentry, in particular on the opening of a door, window or the like. In addition, it may be necessary, during this assembly, to cut lengthwise this or these operating rods 4, 5. However, it is advisable to take into account, when carrying out this operation, the locked position or

  unlocked from this or these operating rods 4, 5.

  In the present case and according to the invention, it is associated with the housing 2 at least one breakable and / or retractable blocking member 14 provided for immobilizing, temporarily, the operating rod or rods 4, 5 by action on at least one part. of the drive mechanism 3, this at least until the first command

  passed on to the latter by the user.

  According to another feature of the invention, this breakable and / or retractable blocking member 14 is provided at a cutout 15 made in one of the walls 16 of the housing 2 so that, when the first command is given to the 'user, this body 14 after having been cut, may fall out of the housing 2 or

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  again so that it can retract outwards from this housing 2, either irreversibly following this first command, or systematically at each locking and / or

  unlocking, a bit like a ratchet.

  In the context of the embodiment particularly shown in Figures 1 to 3 of the accompanying drawing, this locking member 14 is in the form of a retaining tab 17 taking position in a cutout 15 formed at the bottom 16 of the housing 2 to the right of the follower 6, the latter comprising, at the periphery, a retaining lug 18 capable of cooperating with this retaining tab 17 from which the immobilization in rotation results

of the follower 6.

  This being engaged, by means of its toothing 9, with the rack of the operating rod 4, the latter is automatically immobilized in translation, just like the other operating rod 5 connected to the previous through gable

inverter 11.

  The mechanical strength of the retaining tab 17 can thus be determined that, under the impulse communicated by the user to the follower 6, the retaining lug 18 is able to push this retaining tab 17 outwards. This action may have the consequence, if necessary, of the cutting of this retaining tab 17, at its base 19. This may be the case, for example, when this retaining tab 17 and, therefore, the housing 2, are made of material plastic. It is also possible that the stress applied by the retaining lug 18 on the retaining tab 17 quite simply ensures the folding of the latter and therefore its retraction towards the outside of the housing 2. Note, in particular, that this retaining tab 17 can thus be irreversibly erased, but it can also, by elastic effect, systematically regain its initial locking position, so that at each locking and / or unlocking command the retaining lug 18 will have to push back this

  retaining tab 17, this a bit like a ratchet.

E.:i

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  In such a situation, this retractable blocking member 14 can fulfill, secondarily, an indexing function of the follower 6 in a determined angular position whatever the clearances at the drive mechanism 3. Thus, if due to these plays a control handle, cooperating through the operating square with the follower 6, would tend not to appear strictly horizontally in its rest position corresponding to the locking or unlocking of the cremone bolt 1, the blocking 14 prevents this by retaining the follower 6 in a

  well-defined angular position.

  It is well understood that such a breakable and / or retractable blocking member 14 can also be found at a cutout made in any of the side walls of the housing 2 to intervene on the follower 6, or on any another part of the drive mechanism 3, in particular on the reversing pinion 11, or even, on at least one of the end sections 20, 21 of the operating rods 4, 5 introduced into the housing 2 and that

  it will be considered to be part of the drive mechanism 3.

  As is apparent from the above description, the blocking

  temporary or the rods for maneuvering a cremone bolt is, here, ensured in the absence of any headrest, not to mention that this blockage occurs during the manufacturing phase of these cremones by the

  simple assembly of the parts which constitute them.

  Consequently, the present invention responds,

  advantageously, to the problem posed.

  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 it is possible to make various modifications to it in forms, combinations and these various elements. , without for

  this is to depart from the framework and the spirit of the invention.

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Claims (8)

Claims   1. Lock fitting of the lever type (1), comprising a housing (2) accommodating a drive mechanism (3) for the movement control of at least one operating rod (4, 5), on this mechanism drive (3) being able to act a user for locking or unlocking the fitting, in particular by means of a handle or a control button and / or a key element, characterized by the fact that said housing (2) comprises a breakable and / or retractable locking member (14) for temporarily immobilizing the operating rod or rods (4, 5) by action on at least one part (6) of the drive mechanism (3), at least until the first order passed on to this last by the user.   2. Locking fitting according to claim 1, characterized in that the locking member (14) breakable and / or retractable is formed at a cutout (15) made in   one of the walls (16) of the housing (2).   3. Locking fitting according to claims 1 and 2,   the drive mechanism (3) of which comprises a follower (6) having a hub (7) provided with an opening (8) for receiving the operating square of a handle or of a control button, characterized by the fact that the locking member (14) is in the form of a retaining tab (17) taking S25 position in a cutout (15) formed at the bottom (16) of the housing (2), in line with the follower (6), the latter comprising, at the periphery, a retaining lug (18) able to cooperate with said retaining tab (17) for immobilizing in rotation the follower (6).   0 4. Locking fitting according to claim 3, characterized in that the retaining tab (17) is provided capable of being cut, at its base (19) under the thrust of the retaining lug (18) associated with the follower (6) driven   communicated to the latter by the user. 9 2786803   5. Locking fitting according to claim 3, characterized in that the retaining tab (17) is defined capable of irreversibly folding towards the outside of the housing (2) under the stress applied by the retaining lug (18) associated with the follower (6) under the impulse communicated to it last by the user.   6. Locking fitting according to claim 3, characterized in that the retaining tab (17) is defined capable of being elastically pushed back by the retaining lug (18) associated with the follower (6) at each locking pulse   and / or unlocking system communicated to the latter by the user.   7. Locking fitting according to any one of   claims 1 and 2, comprising a drive mechanism (3)   provided with a follower (6), characterized in that the breakable and / or retractable blocking member (14) is located at a cutout in any of the side walls of the housing (2) for work on the follower (6) and / or one   any of the parts of the drive mechanism (3).   8. Lock fitting according to any one of   Claims 1 and 2, characterized in that the   breakable and / or retractable blocking (14) formed at the level of a cutout (15) produced in any one of the walls of the housing (2) is provided capable of cooperating with an end section (20, 21) of an operating rod (4, 5) introduced into the housing (2) and   forming part of the drive mechanism (3). He