EP1945889A1

EP1945889A1 - Mechanism for installing a control turning handle of a door lock and its deinstalling tool

Info

Publication number: EP1945889A1
Application number: EP06807751A
Authority: EP
Inventors: Richard Houis
Original assignee: Cyclope
Current assignee: Cyclope
Priority date: 2005-11-07
Filing date: 2006-11-06
Publication date: 2008-07-23
Anticipated expiration: 2026-11-06
Also published as: FR2893061A1; FR2893061B1; US8070194B2; US20080252086A1; CN101300397B; CN101300397A; ATE540180T1; WO2007051853A1; EP1945889B1

Abstract

The invention relates to an installing mechanism and its deinstalling tool for a control turning handle (150) of a lock on an actuating rod (17) comprising two assemblies (E1, E2) that interact via a bayonet-type assembly by an axial engagement in the direction of the leaf then a rotation in a circular arc branch, in a second direction opposite the first direction around the axis of the rod, of the second assembly (E2) on the first set (E1), characterized in that each circular arc branch comprises an engagement limit stop upon which an associated stub rests, and a retractable stop for rotationally blocking the associated stub in the circular arc branch. The invention is particularly for use in a hygienic handle.

Description

"Installation mechanism for a rotary door handle and its disassembly tool"

TECHNICAL DOMINION OF THE I NVENTION

The invention relates to a mechanism for mounting a control handle, and more particularly to a mounting mechanism of a control handle of a lock equipping the door leaf, which is mounted in a rotating manner, in a first sense from a rest position to which the handle is resiliently biased.

STATE OF THE TECH N IQU E

Such a mounting mechanism generally comprises a control rod in rotation of the lock which extends axially perpendicularly to the plane of the door leaf, and an arrangement mounted on the handle adapted to receive the control rod to drive it into position. rotation which comprises a first assembly which is adapted to be fixed and immobilized axially on the control rod, and a second assembly integrated in a hub of the handle, the first and second sets being secured to each other by means of a mounting of the type said bayonet, - the first set comprising a section which is rotatably mounted with the control rod and which comprises at least one radially arranged lug;

the second assembly comprising, for each lug, an "L" groove comprising an axial slide and an arcuate branch so that an axial translation, then a rotation, allows the engagement of the lug in the groove; associated to allow said bayonet mount by an axial engagement towards the opening, then a rotation in a second direction opposite said first direction about the axis of the rod, the second set on the first set.

Such an easy assembly mechanism is intended to be used in the field of hygiene and public health, such as the medical field and in particular the hospital environment, the agri-food field, areas where it may be necessary to dismantle frequently. the door handles for a more complete cleaning.

A conventional rotary handle is almost impossible to handle without using the hand, especially when it first causes the actuation of a mechanism such as a lock and then the opening of the opening or flying of the rotates around its vertical axis constituted by hinges. But the hands are the main mode of transmission of germs and pathogenic bacteria. Contaminations are transmitted by the hands.

One of the solutions is to design actuators that can be operated without using the hand, including using the arm, forearm or wrist so as to create a physical disruption of the transmission of bacteria and viruses called " manu-worn ".

An additional solution is to design an easy assembly and disassembly mechanism so that they can be removed regularly for greater cleaning.

(sterilization, chemical treatment, etc.).

US Pat. No. 4,588,221 discloses a bayonet mounting mechanism.

SUMMARY OF THE INVENTION

The present invention provides a mounting mechanism of the aforementioned type suitable for facilitating disassembly. For this purpose, the mechanism is characterized in that each arcuate branch of the groove comprises an engagement end stop on which the associated lug bears, and a retractable stop to block the lug associated in rotation in the branch in an arc.

According to other features of the invention:

- The retractable stop is an elastically deformable stop to allow disassembly of the handle by rotation in said second direction of rotation;

the retractable stop is a retractable peg which is arranged angularly opposite said axial slideway and which is axially movable between:

. a rest position towards which the pin is resiliently biased and wherein the pin protrudes axially in the arcuate branch to constitute said stop; and

. a retracted position allowing the axial engagement of the lug in the axial slide, then in the arcuate branch;

each retractable pin is made of magnetic material so as to allow the control of its retraction by means of a magnetic field;

- Each retractable pin is slidably mounted in a cylinder of the second assembly, against a spring which is compressed mounted between the axial bottom of the cylinder and the retractable pin;

the first set comprises:

. a fixing ring fixed on the door around said section;

. and a return spring which is interposed between the fixing ring and the section so as to recall resiliently the control rod rotates to its angular position of rest;

the section mounted on the control rod comprises;

. a base sub-section; . and a coaxial end sub-section; these two sub-sections cooperating by means of complementary teeth so as to allow the angular adjustment of a sub-section relative to the other sub-section and thus allow the adjustment of the angular position of the rotary handle relative to the stem;

the mechanism comprises means for adjusting the rest position of the bolt of the lock;

the means for adjusting the bolt is a set screw, the body of which is screwed into the fixing ring and whose free end is in abutment against a bearing pad of the section, to allow adjustment of the rest position lock bolt;

the adjusting means comprise an adjustment ring arranged around the base sub-section and which comprises an abutment finger in contact with a support pad of the sub-section, said adjustment ring being adjustable in rotation with respect to the fixing ring between several angular positions so as to rotate said base sub-section with the adjusting ring to adjust the rest position of the bolt; - The adjusting ring comprises a toothed radial tab which is held fixed in rotation by means of a pair of toothed jaws, a fixed jaw is formed in the fixing ring and a movable jaw which belongs to a flange screwed onto the ring. of fixation . The invention also proposes a tool for mounting the mechanism according to the invention, characterized in that it comprises a housing intended to receive the outer portion of the hub of the handle, and in that it comprises magnets adapted to axially attract the retractable pins.

The mounting tool is also characterized in that it comprises a fingerprint intended to cooperate with the stub lugs so as to adjust the angular position of the handle.

BRIEF DESCRIPTION OF THE FIGURES

Other features and advantages of the invention will appear during the reading of the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:

- Figure 1 is a partial schematic exploded perspective view of a mounting mechanism according to a first embodiment of the invention;

FIG. 2 is an exploded perspective view of the two main components constituting the handle with its improved hub according to the first embodiment of the invention;

- Figure 3 is a schematic view illustrating the mounting mode of a handle according to the invention on a door leaf;

- Figure 4 is a view similar to that of Figure 1 which shows a mounting mechanism according to a second embodiment of the invention;

FIG. 5 is an exploded perspective view of the two constituent sub-sections of the first assembly represented in FIG. 4;

- Figure 6 is another perspective view of the first assembly shown in Figure 4;

- Figure 7 is a diagram illustrating the bayonet lock according to a first embodiment;

- Figure 8 is a diagram illustrating the bayonet lock according to a second embodiment; FIG. 9 is an exploded perspective view similar to that of FIGS. 4 and 5 which illustrates the main components of the first assembly of the mechanism according to a third embodiment of the invention, and on which the adjustment ring is represented in FIG. top and bottom view;

FIG. 10 is an assembled view of the components of the first set of FIG. 9;

- Figure 1 1 is an exploded perspective view similar to that of Figure 2 which illustrates the main components of the second set of the mechanism according to the third embodiment;

FIG. 12 is an end axial view of the second assembly of FIG. 1 in the assembled position of the components;

FIGS. 13A to 13D are diagrams similar to those of FIGS. 7 and 8 illustrating the locking of the bayonet according to the third embodiment; and

- Figures 14 and 15 are schematic perspective views of a multiple tool for mounting, adjusting and disassembling the mechanism according to the third embodiment.

DESCRI PTION DETAI LLEE FIGURES

In the following description, elements that are identical, similar, similar or have the same function will be designated by the same reference numerals.

In the description and in the claims, the axial and radial terminology will be adopted in a nonlimiting manner with reference to the axis of rotation of the door handle and vertical, horizontal, up, down, upper, lower, etc. with reference to the orientation of the opening of the door.

The mechanism for mounting a handle adapted to receive a control rod for driving it in rotation comprises: - A first assembly E1 illustrated in Figure 1 which is adapted to be fixed on a control rod 17 with respect to which the first assembly E1 is axially immobilized along the axis AH of Figure 1; and a second assembly E2, illustrated in detail in FIG. 2, which is an integral part of a hub 24 of a handle 150.

As can be seen in FIG. 3, the mechanism cooperates with a door lock, of the mobile bolt type, which cooperates with a fixed striker carried by the frame of the door, known from the state of the art and including in particular the rod 17 which controls the opening of the door 100 from an angular position of rest to which the handle 150 is resiliently biased, that is to say to control the erasure or retraction of the bolt.

In position on the door 100, the handle 150 and the rod 17 are mounted to rotate about a common horizontal axis of rotation AH.

According to the first embodiment, the first assembly E1 is mounted and fixed axially on the control rod 17 of the door 100, for example by tight axial engagement, or alternatively by any other means of assembly and fixing such as by example a diametral pin.

The first assembly E1 mainly comprises a section 16, a fixing ring 12, a sealing washer 10 and a return spring 14.

The fixing ring 12 is intended to be fixedly mounted on the outer face 101 of the opening of the door 100.

The fixing ring 12 constitutes the part of the first assembly E1 which is fixed on the door 100. It is intended to be mounted integral with the opening of the door 100 by means of axial fixing screws 20, or any other equivalent way. The sealing washer 10 is interposed between the opening of the door 100 and the fixing ring 12 to prevent contamination of the handle. The sealing washer 10 generally comprises concentric axial grooves (not shown in detail) so as to receive the annular end edges of the first assembly E1 and the hub 24 of the handle 150.

The sealing washer thus ensures a double seal, especially against contaminations, between the opening and the ring and between the first assembly and the hub.

In order to avoid local wear of the face 101 of the opening by friction of the first assembly E1, the mechanism also comprises an anti-wear plate interposed between the sealing washer 10 and the plane of the opening, made in a suitable material such as a light metal.

The main section 16 is intended to be mounted on the end of the control rod 17 coaxial with the axis AH of rotation of the handle 150.

The section 16 has for this purpose in its base adjacent to the opening, a hole of square section complementary to that of the rod 17 so as to receive the control rod 17 and ensure their connection in rotation.

According to the different embodiments, the section 16 has a substantially frustoconical or cylindrical shape and its proximal base of the opening is rotatably mounted, at least according to a given angular sector, in the fixing ring 12.

The section 16 also comprises, at its distal end, radially extending lugs 18, which here are three in number and which are distributed angularly and regularly around the central axis of the section 16. The section 16 comprises an axial groove 19 dug in its base, which opens into the outer wall and whose role will be explained later.

The first assembly E1 comprises a return spring 14 which is a resilient wire spring which is angularly interposed between the fixed ring 12 and the main section 16 so as to permanently exert a return torque to resiliently bias the control rod 17 around the axis

AH rotating towards its angular position of rest which is the position of exit of the bolt.

The spring 14 is initially mounted in a state of tension or prestressing by means of a clamping screw 22 which is screwed radially into the fixing ring 12 and whose free end is received in the axial / longitudinal groove 19 so as to lock the rotation of the section 16, and therefore its elastic return action, to facilitate the mounting of the first set E1.

The strands of free ends 14a and 14b of the spring 14 are respectively received in the longitudinal groove 19 and in a notch 21 arranged for this purpose in the fixing ring 12 so as to constantly urge the section 16 in rotation with respect to the ring 12, especially after the final extraction of the clamping screw 22.

According to another embodiment of the invention, the skilled person can replace the wire spring by any other equivalent spring and providing the same function, such as a leaf spring.

The second assembly E2, integrated in the hub 24 of the handle 150, comprises an assembly which is here crimped into the hub 24 and which consists of the elements or components shown in FIG.

The hub 24, shown in more detail in FIG. 2 delimits an internal cavity 26, which is axially open in direction of the door leaf and in which cavity are formed end stops 28 of engagement engagement, retractable stops 30 and guides, or ribs 32 projecting radially axially and axially oriented which are angularly distributed evenly within the internal cavity 26.

For this purpose, the body of the handle 150 and in particular its hub 24 with the cavity 26 of complex internal profile, are advantageously made by plastic molding. The three axial guides 32 are intended to be received axially in complementary external grooves 34 to guide and immobilize in rotation a complementary cylindrical piece 36 which is arranged in the internal cavity 26 of the hub 24 so that, once inserted and axially nested in the internal cavity 26 of the hub, the piece 36 is an integral part of the hub. The handle and its hub are thus made in two parts, in particular to allow the molding of the complex shapes of the cavity 26.

The inner part 36, shown outside the hub 24 in FIG. 2, is fitted into the internal cavity 26 by hot crimping, or it can be fixed by any other equivalent means, for example by screwing, and it constitutes with the hub 24 and its cavity 26, the second assembly E2 of the mechanism adapted to cooperate with the first set E1. The inner part 36 attached in the cavity 26 is an annular cylindrical piece which also has axial grooves or internal grooves emerging at their opposite ends 38 which are three in number and angularly distributed regularly and each of which constitutes a passage or path for axial insertion or extraction of an associated pin 18 of the first set E1.

Thus, when mounting the handle 150 on the door leaf previously equipped with the first set E1, each pin 18 is engaged axially in a slideway 38 by an axial translation to reach an axial position in which the lug 18 is facing a first arcuate surface of concave contact cylinder A, as shown in FIG. rotational movement in one direction, hourly considering FIG. 3, of opening of the door 100 (retractable bolt), the lug 18 is housed between an engagement limit stop 28 and a retractable stop 30 and facing a second concave cylindrical contact surface B to perform bayonet said mounting of the handle, with its second integrated assembly E2 on the opening 100 previously equipped with its assembly E1.

The functional surfaces A and B and the stops 28 and 30 are made by molding in the cavity 26. When the hub 24 and the inner part 36 are in the final angular position of mounting of the handle, the slideway 38 and the contact surfaces in a cylinder arc A and B define an L-shaped groove 60, illustrated in FIG. 7, with an axial branch constituted by the slideway 38, and an arcuate branch 61 delimited by the cavity 26, the piece 36 and concave cylinder arc surfaces A and B.

The retractable stop 30 has a sufficiently high rigidity to retain the lug in contact with the stop 28. The stop 30 is also profiled and is sufficiently elastically deformable to allow the lug 18 to escape from its angular "imprisonment" between the two stops 28 and 30 when inversely applying a sufficient torque, in the counter-clockwise direction, for disassembly of the handle 150. Prior to mounting the handle, the user responsible for mounting has installed and fixed the first set E1 on the control rod 17 on the opening of the door 100. Once the first assembly mounted on the opening of the door 100 with the fixing screws 20, the user removes the clamping screw 22 and releases the spring 14 which drives the section 16 in rotation in the direction of the bolt outlet (not shown). In the case of so-called "hygienic" handles, the main body intended to receive a forearm of the user is generally longer and the handle 150 is generally heavier than a "conventional" door handle.

The return spring 14 thus assists the elastic return mechanism of the lock to ensure an angular position of rest of the handle 150 which is almost constant and in which the bolt is in the extended position.

The return spring 14 is stiff enough to apply a torque on the section 16, and therefore on the handle 150, via the lugs 18 and to prevent the sole weight of the handle does not cause actuation of the lock.

The second set E2 of the hub 24 of the handle 150 is placed by the user in front of the first set E 1 fixed on the opening of the door 100. Next, the assembler axially inserts the lugs 18 in the slides 38 of the cavity 26 of the hub 24. To obtain the so-called bayonet locking, the user turns the handle 150 in the clockwise direction of the opening of the lock so that each pin 18 comes to be housed between two stops 28 and 30 opposite the surface circular B. The need to elastically deform the stops 30 provides the editor a tactile sensation of crossing and "locking" of the handle in the mounted position, from which position the handle is now secured in rotation with the rod 17. According to the second embodiment of FIG. realization, it is proposed a first set E1, illustrated in Figure 4, the main feature of which compared to the first embodiment that comes to be described, is that the section 16 is composed of two sub-sections or half-sections 44 and 46.

The two sub-sections cooperate with each other by means of teeth 45 and 47, distributed angularly in a ring in a regular and complementary manner on each of the radial end faces opposite the two sub-sections 44 and 46 respectively.

This allows the angular position of the lugs 18 carried by the distal free end sub-section 46 relative to the proximal base sub-section 44 to be accurately adjusted, and thus to adjust the angular position of the handle 150 compared to the opening. The pitch of this precision adjustment corresponds to the pitch of complementary teeth or notches 45 and 47. This adjustment is necessary in particular for hygienic handles able to be actuated by the wrist or the forearm. A conventional door handle generally includes a body that extends at rest in a horizontal plane. On the contrary a hygienic handle must extend substantially upwards so as to be at the height of the arm or forearm of the user.

The angular adjustment thus makes it possible to adapt in particular the hygienic handle on the one hand to the different fields of application and on the other hand to the size of the different users to avoid any contortion in use, in particular of the back.

The two proximal sub-sections of the base 44 and distal end of free end 46 are immobilized axially relative to each other by means of a screw 42 and a nut (not shown) arranged in the bottom of the housing adapted to receive the control rod 17.

To proceed with the adjustment, the screw 42 is loosened, a new angular position is selected, then the screw 42 is tightened again. The base sub-section 44 housed inside the fixing ring 12 comprises abutment studs 48 forming symmetrical angular supports 48 which are diametrically opposite. The first assembly E1 here comprises another adjusting screw 50, visible in FIG. 6, which is screwed substantially tangentially into the fixing ring 12 and whose free end 51 bears angular abutment against one of the support pads 48. The adjusting screw 50 is accessible from the outside of the ring and its rotation in one or the other direction by screwing or unscrewing allows adjustment of the rest position (out). lock bolt.

When unscrewing the adjusting screw 50, its free end acts on the stud 48 and the bolt tends to protrude more protruding from the field of the door.

When screwing the adjusting screw 50, the bolt tends to enter the lock which has the effect of facilitating the closing of the door when the user pulls the handle towards him. The inner part 36 according to the second embodiment, has convex side faces 41 and 43 with low and opposite slopes to improve its maintenance by crimping in the cavity 26 of the hub 24.

The user can adjust the desired angular position for the handle 150 by angularly shifting the sub-section 46 relative to the sub-section 44. To facilitate this adjustment, the distal end sub-section 46 may include a marking. (not shown) for locating a pin 18 and shift it to the desired angle to obtain a set handle "low", that is to say with a small angle relative to the horizontal or a set handle " high ", with a larger angle to the horizontal. Then, the user mounts and locks the handle as for the first embodiment of the invention.

According to an alternative embodiment, shown schematically in Figure 8, the L-shaped groove 60 has a different profile. The limit stop 28 and a stop 30 define a housing 52 in which the lug 18 is axially received at the end of the bayonet mounting stroke. A leaf spring 54 then axially urges the lug 18 towards the door 100 so as to press the handle 150 against the door 100 and to hold the handle 150 in its locked position. In addition, the spring 54 maintains the lug between its opposite stops 28 and 30.

To disassemble the handle, the user axially pulls the handle towards him, looking down in Figure 8, and then dismounts the mechanism by rotation and translation in the opposite direction of the mounting direction.

The spring 54 with the stops 28 and 30 and the housing 52 constitute retractable abutment means equivalent to those of the elastically deformable retractable stopper according to the first embodiment. According to a not shown variant of the invention, the spring 54 is placed in the internal cavity 26 so as to press the lug 18 into the housing 52 by biasing it axially towards the handle 150. To remove the handle 150, the user must then push the handle axially towards the door and unlock the mechanism by rotation and translation in the opposite direction to the mounting direction.

FIGS. 9 to 15 show a third preferred embodiment of a mechanism for mounting a door handle, as well as its combined assembly and disassembly tool. In this third embodiment, the two sub-sections 44, 46 of the first set E1 are fixed to each other by means of a nut 205 of distal end, axially threaded and which is mounted on a threaded rod. 200 integral with the sub-section base 44 so that, once the angular position of the lugs 18 set, it is sufficient to screw the nut 205 on the threaded rod 200.

The body of the nut 205 has a slightly frustoconical shape and its outer wall has radial grooves in which are arranged O-rings 201 so as to facilitate the insertion and removal of the first set E1 in the second set E2 and to avoid the radial clearances between the two sets E1 and E2. The nut 205 further comprises, at its base, radial claws 203 for rotating the nut in both directions which are able to cooperate with the mounting tool 240 which has complementary housings 204 so as to tighten the nut 205 with a sufficient tightening torque to prevent any accidental disconnection of the two sub-sections 44 and 46.

Thus the angular adjustment of the handle 150 requires less effort than with respect to the previous embodiments. Indeed, it suffices simply to unscrew the nut 205 to intervene on the end sub-section 46 once the first set E1 mounted on the control rod 17 lock.

The mounting mechanism according to the third embodiment also comprises a means for adjusting the rest position of the bolt of the lock, according to another design.

The means for adjusting the rest position of the bolt consists of a flat ring, or adjustment ring 210.

The ring 210 comprises, on its proximal annular face 21 1 a stop finger 216, oriented axially towards the ring 12 and the base sub-section 44.

The ring comprises, in line with the axial finger 216, a radial tab 212 having on its two opposite faces teeth 214. The adjusting ring 210 is mounted around the base portion 44 so that its stop finger 216 is in contact with the bearing pad 48 of the base sub-section 44.

Thus, the base sub-section 44 is connected in rotation with the adjustment ring 210.

The user adjusts the position of the bolt by imposing a rotation of the adjusting ring 210, driving with him the base sub-section 44.

The ring 12 has an angular clearance 250 defined by two stops 252 in which the axial finger is received.

216 and the pad 216 to allow the angular displacement of the sub-section 44 and the ring 210 relative to the ring 12 for adjustment.

The first set E1 comprises a pair of jaws 208, 209 including a fixed jaw 208 which is formed in the fixing ring 12 and which has teeth 260 complementary to the teeth 214 of the lower face of the radial tab 212, and a movable jaw 209 which consists of a flange having teeth 262 and which is adapted to be screwed onto the fixing ring 12 so that, once the flange is screwed onto the ring

12 by screws 266, the radial tab 212 is locked firmly in rotation between the two jaws 208, 209 axially clamped.

For the various operations of assembly and disassembly, as well as adjustment of the rest position of the bolt, the user has a combined tool 240 which includes in particular an imprint 246 of the lugs 18.

Once a first assembly E1 of a mounting mechanism placed for example on each side of the opening of the door, the user positions the cavity 246 on the lugs 18 of the first set of mechanisms opposite to the one he wants adjust.

To enter or exit the bolt, the user simply turns the tool 240 around the axis AH of the lock. When the position of the bolt is adjusted, the fitter angularly moves the radial lug 212 of the adjusting ring 210 of the mechanism that he wants to adjust to bring the stop finger 216 into contact with the support block 48 of the sub-section The mounter then screws and axially clamps the movable jaw 209 against the fixed jaw 208 to lock the radial lug 212, and therefore the adjusting ring 210, in rotation with respect to the ring 12.

The user thus blocks in rotation the adjustment ring 210 by blocking at the desired angular position the radial tab 212.

In the same way as for the previous embodiments, the second assembly E2, mounted inside the hub 24 of the handle 150, includes end stops 28 and retractable stops 30 regularly and radially distributed, between which an associated pin 18 is retained in position at the end of the mounting bayonet type.

As can be seen in FIGS. 13A to 13D, each retractable stopper 30 is a retractable cylindrical pin 30 which is able to be positioned angularly facing the axial slideway 38 and which is mounted axially movable with respect to the hub 24 of the handle 150.

The retractable pin 30 can occupy two axial positions, including: an axial rest position towards which the pin 30 is resiliently biased, here by a coil spring 230, and in which the pin 30 projects axially into the arcuate branch 61 to constitute said retractable stop 30; and

- A retracted position, against the force exerted by the spring 230, allowing the axial engagement of the lug 18 in the axial slideway 38 and in the arcuate branch 61. More particularly, each retractable pin 30 is slidably mounted in a cylinder cylindrical axial hole 231 formed in the hub 24, and in which is arranged the spring 230 mounted axially compressed between the axial bottom 235 of the cylinder 231 and the end transverse face 233. of the pawn 30.

To mount the handle 150 on the door, the assembler axially engages each of the lugs 18 in an associated axial slideway 38 (FIG. 13A).

Each lug 18 axially urges the transverse end face 229 of the retractable pin 30 by axially pushing the pin 30 in its retracted position by compressing the spring 230 (Figure 13B).

To obtain the bayonet lock, the user then turns the handle in the direction of the opening of the lock and engages, by rotation, each of the lugs 18 in an associated circular arc branch 61.

Each retractable peg 30 then returns to its axial rest position by projecting again into the axial slide 38 and each lug 18 is thus locked between a limit stop 28 and a peg 30 which constitutes a retractable abutment 30 (FIG. 13C ).

According to a preferred embodiment of the invention, the retractable pins 30 are made of magnetic material so as to allow the control of their retraction by means of a magnetic field.

Thus, in order to disassemble the handle 150, the user has a mounting tool 240 comprising magnets 270 which are capable of axially attracting the retractable pegs 30 in the retracted position, in which the spring 230 is compressed, so as to release the lugs 18 in rotation in the arcuate branch 61 (Figure 13D).

Specifically, the mounting tool 240 has a cavity 242 for receiving the outer portion 25 of the hub 24, so as to act on the pins 30 of magnetic material located in the hub 24.

To disassemble the handle, the user places the mounting tool 240 against the outer portion 25 of the hub 24 of the handle 150. Each retractable pin 30 then moves axially towards its retracted position thus releasing each pin

18 in the associated circular arc branch 61.

The fitter finally turns the handle 150 with the tool 240 in the opposite direction of opening of the lock and can dismount the handle 150.

Advantageously with respect to the previous embodiments, such a mounting tool 240 providing several functions reduces the number of tools and the time required to mount / dismount door handle. The present invention as well as the various embodiments described above apply in a simplified manner to fixed type handles equipping closets, some doors and so on. In this case, the section is attached directly to the closet door opening and the handle is mounted by the same bayonet locking mechanism.

Claims

REVEN D ICATIONS

1. Mechanism for mounting a control handle of a lock (150) equipping the opening of a door (100), which is mounted in a rotating manner, in a first direction, from a rest position towards which the handle (150) is resiliently biased, the mechanism being of the type comprising a rod (17) for controlling the rotation of the lock which extends axially perpendicular to the plane of the door leaf (100), and an arrangement mounted on the handle (150) adapted to receive the control rod (17) to drive it in rotation which comprises a first assembly (E1) which is adapted to be fixed and immobilized axially on the control rod (17), and a second assembly ( E2) integrated in a hub (24) of the handle (150), the first (E1) and second (E2) assemblies being secured to each other by means of a bayonet-type assembly,

- The first assembly (E1) having a section (16) which is rotatably mounted with the control rod (17) and which comprises at least one lug (18) arranged radially; the second set (E2) comprising, for each spur

(18), an "L" groove (60) having an axial slide (38) and an arcuate leg (61) so that axial translation, then rotation, allows engagement of the pin (18) in the groove (60) associated to allow said bayonet mounting, characterized in that each arcuate branch (61) of the groove (60) has an engagement limit stop (28) on which the lug (18) associated bears, and a retractable stop (30) for locking the associated lug (18) in rotation in the arcuate branch (61).

2. Mechanism according to claim 1, characterized in that the retractable stop (30) is a deformable stop elastically to allow disassembly of the handle (150) by rotation in said second direction of rotation.

3. Mechanism according to claim 1, characterized in that the retractable stop (30) is a retractable pin (30) which is arranged angularly opposite said axial slide (38) and which is mounted axially movable between:

- A rest position to which the pin (30) is elastically biased and wherein the pin protrudes axially in the arcuate branch (61) to form said stop (30); and

- A retracted position allowing the axial engagement of the lug (18) in the axial slide (38), then in the arcuate branch (61).

4. Mechanism according to claim 3, characterized in that each retractable pin (30) is made of magnetic material so as to allow control of its retraction by means of a magnetic field.

5. Mechanism according to claim 4, characterized in that each retractable pin (30) is slidably mounted in a cylinder (231) of the second assembly (E2), against a spring (230) which is mounted compressed between the axial bottom (235) of the cylinder (231) and the retractable pin (30).

6. Mechanism according to any one of claims 1 to 5, characterized in that the first assembly (E1) comprises: - a fixing ring (12) fixed on the door (100) around said section (16);

- And a return spring (14) which is interposed between the fixing ring (12) and the section (16) so as to elastically return the control rod (17) in rotation to its angular position of rest.

7. Mechanism according to claim 6, characterized in that the section (16) mounted on the control rod (17) comprises; a base sub-section (44);

and a coaxial end sub-section (46); these two sub-sections (44 46) cooperating by means of complementary teeth (45, 47) so as to allow the angular adjustment of a sub-section relative to the other sub-section and thus allow the adjustment of the position angular of the rotating handle (150) relative to the rod (17).

8. Mechanism according to claim 6, characterized in that it comprises a means for adjusting the rest position of the bolt of the lock.

9. Mechanism according to claim 8, characterized in that the means for adjusting the bolt is a set screw (50), whose body is screwed into the fixing ring (12) and whose free end abuts against a support pad (48) of the section, to allow adjustment of the rest position of the bolt of the lock.

10. Mechanism according to claims 7 and 8, characterized in that the adjusting means comprises an adjusting ring (210) arranged around the base sub-section (44) and which comprises an abutment finger (216) in contact. with a support pad (48) of the sub-section (44), said adjustment ring (210) being adjustable in rotation with respect to the fixing ring (12) between several angular positions so as to rotate said sub-section (44); base section (44) with the adjusting ring (210) to adjust the rest position of the bolt.

1 1. Mechanism according to claim 10, characterized in that the adjusting ring (210) comprises a toothed radial tab (212) which is held fixed in rotation by means of a pair of toothed jaws (208, 209) including a fixed jaw (208) is formed in the fixing ring (12) and a movable jaw (209) which belongs to a flange (209) screwed onto the fixing ring (12).

12. Assembly tool (240) of the handle mechanism (150) according to claim 4, characterized in that it comprises a housing (242) for receiving the outer portion (25) of the hub (24) of the handle ( 150), and in that it comprises magnets capable of axially attracting the retractable pins (30).

13. Mounting tool (240) according to claim 12, characterized in that it comprises a recess (246) intended to cooperate with the lugs (18) of section (16) so as to adjust the angular position of the handle ( 150).