Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D65/00—Parts or details
  • F16D65/0031—Devices for retaining friction material debris, e.g. dust collectors or filters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
  • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
  • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
  • B60T17/043—Brake line couplings, air hoses and stopcocks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
  • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
  • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
  • B60T13/66—Electrical control in fluid-pressure brake systems
  • B60T13/665—Electrical control in fluid-pressure brake systems the systems being specially adapted for transferring two or more command signals, e.g. railway systems
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
  • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
  • B60T17/18—Safety devices; Monitoring
  • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
  • B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
  • B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
  • F16D69/04—Attachment of linings
  • F16D2069/0425—Attachment methods or devices
  • F16D2069/0433—Connecting elements not integral with the braking member, e.g. bolts, rivets

Definitions

• the present invention relates to the braking of railway rolling stock and in particular the friction assemblies of the braking systems of railway rolling stock.
• railway rolling stock By such equipment is meant all vehicles configured to run on rails, such as trains, trams, metropolitan.
• the braking system generally comprises a disc secured to a wheel or an axle of the railway rolling stock.
• the brake system further includes a friction assembly that includes a shoe carrier that supports a friction shoe.
• the friction sole usually comprises means for attachment to the sole carrier and a friction pad.
• the rubbing shoe of the friction shoe comes into contact with the disc to exert a braking force on the disc.
• the friction sole brakes the disk integral with the wheel or the axle.
• railway rolling stock comprises two friction assemblies, arranged on either side of the disc so as to grip, or in other words sandwich, the disc in order to compress it on both sides.
• the friction pad of the friction sole usually comprises a metallic material, such as cast iron, a sintered material or a composite material.
• a metallic material such as cast iron, a sintered material or a composite material.
• the sole carrier 103 extends longitudinally in a longitudinal direction X, and transversely in a transverse direction Y.
• the X-Y plane is horizontal.
• the Z direction, perpendicular to the X-Y plane to form a mark (C,U,Z), is vertical, oriented upwards.
• the sole holder 103 comprises a lower face 131 intended to accommodate a friction sole 102, and an upper face 132, which each extend parallel to the X-Y plane.
• the sole holder 103 has on its underside 131 a concave dovetail receiving slide 105, which extends longitudinally from a first end of the sole holder 103 to near the second end of the sole holder 103 where this slide is non-opening.
• the sole carrier 103 comprises on the longitudinal axis X two secondary ducts 138 spaced apart. Each secondary duct 138 connects the upper face 132 to the bottom of the slide 105 on the upper face.
• the friction sole 102 is in two parts (for example symmetrical), where each part has a friction face 121 intended to be in contact with the disc (not shown) of the vehicle and an opposite face 122.
• This face opposite 122 has a convex dovetail profile 104 configured to cooperate with the reception slide 105.
• a first part of the sole 102 is pushed along the longitudinal axis X by sliding the profile 104 in the slide 105, up to the abutment of the slide 105.
• the second part of the sole 102 is pushed in along the longitudinal axis X by sliding the section 104 in the slide 105, up to the abutment of the first part of the sole 102 , the surfaces in contact of the first part and the second part being ideally shaped to fit together over their entire surface.
• Each of the parts of the sole 102 comprises a primary duct 128 oriented along the vertical axis Z.
• each of the two primary ducts 128 is located opposite a Secondary duct 138.
• Axis B designates the main axis of a primary duct 128 and of the secondary duct 138 located opposite, this primary duct 128 and this secondary duct 138 therefore being coaxial.
• each primary duct 128 forms, with one of the secondary ducts 138 provided in the sole carrier 103, a circuit which makes it possible to suck up particles emitted by the friction sole 102 during braking.
• the B axis is therefore parallel to the vertical Z axis.
• a junction ring 108 consisting of a tube and a flange 1082 extending radially and outwardly this tube at one of its ends, is mounted in the secondary conduit 138.
• the tube is inserted into the conduit secondary 138, the external diameter of the tube being equal to the internal diameter of the secondary duct 138 in order to ensure the best possible seal.
• the flange 1082 is housed in an annular housing of the sole holder 103, this housing being centered on the main axis B and opposite the opposite face 122 of the sole 102.
• the annular housing has a diameter greater than that of the secondary duct 138 and lower than that of the flange 1082.
• the flange 1082 is sandwiched between the profile of the sole 102 and the bottom of the slide 105 of the sole holder 103. Once in its housing, the flange 1082 is in contact with the face 122 of the profile 104 of the sole 102. This contact is achieved for example by deformation (crushing) of the collar 1082 between the bottom of the housing and the face 122.
• this contact is made by compression of a coil spring mounted on the tube between the collar 1082 and the bottom of the housing.
• the collar 1082 itself, or the coil spring is a return mechanism 190 which allows the collar 1082 to be pressed against the profile 104 (see below).
• the junction ring 108 passes entirely through the sole carrier 103 and protrudes from it on its upper face 132 at its lower face 131 provided with the slide 105.
• a pipe 150 which is connected to a suction device (not shown) and which allows the suction through the primary duct 128 and the secondary duct 138 of particles resulting from braking of the railway vehicle by wear of the sole 102.
• the pipe 150 and the suction device constitute a particle evacuation device.
• junction ring 108 serves to guide the particles resulting from braking from primary duct 128 of sole 102 to secondary duct 138 of sole holder 103. Junction ring 108 therefore aims to prevent possible leaks at the through the primary duct 128 and the secondary duct 138. In particular, the junction ring 108 aims to limit the quantity of particles resulting from braking which could slip into the gap at the interface between the friction sole 102 and the carrier. sole 103, and above all to prevent a flow of air coming from outside from penetrating through this gap into the secondary duct 138, which would degrade the suction by the suction device.
• junction ring 108 is pressed against the profile 104 using a return mechanism 190, as indicated above.
• This return mechanism 190 effectively prevents the passage of air at the interface between the sole 102 and the sole holder 103 at the level of the primary duct 128 and the secondary duct 138, this passage of air being due to play in the interface between the sole carrier 103 and the sole 102.
• the ring 108 must be blocked in translation in both directions along the axis B, in order to be secured with the sole carrier 103. This blocking is carried out in one direction by the flange 1082 at the lower end of the ring 108. This locking is achieved in the other direction by fixing the upper end of the ring 108 on the pipe 150 which is connected to the suction device.
• a friction assembly for a brake system for railway rolling stock, the friction assembly comprising on the one hand a sole carrier comprising a lower face, an upper face, and at least one secondary duct d central axis B which connects the lower face and an upper face, and on the other hand at least one friction material sole comprising a first face which is the friction face, a second face which is adapted to be assembled on the face lower by an assembly mechanism, and at least one primary duct connecting the first face and the second face, this assembly also comprising at least one junction ring which is inserted into the secondary duct and which establishes a junction with the primary duct when the at least one primary duct is aligned with the at least one secondary duct, the friction assembly further comprising a block which is connected to a suction device and which is fixed to the carrier sole on the upper side.
• the present invention aims to remedy these drawbacks.
• the invention aims to provide a friction assembly for a railway brake system in which the block, which is connected to a suction system, for example a pneumatic block, is fixed to the sole carrier, this assembly being such that the mounting on the sole carrier of at least one junction ring is simple and such that it allows evacuation of the particles emitted by wear of the sole towards the suction device.
• a suction system for example a pneumatic block
• the block has a cavity which is connected by a circuit to the suction device and which comprises at least one hole which connects the cavity and the upper face and which is aligned with the at least a secondary duct, and that the at least one junction ring is removably mounted on a plate, the entity formed by the plate and the at least one junction ring being removably secured to the sole carrier.
• each junction ring is able to be inserted into each hole and into a secondary duct so as to place the soleplate in communication with the suction device.
• This insertion is carried out in a simple manner thanks to the manipulation of a single entity which consists of the plate and of the rings (or of the ring) carried by this plate and which is held integral in a removable manner with the sole carrier.
• the evacuation of particles from the sole to the suction device is performed reliably during operation of the friction assembly.
• the maintenance of the assembly is facilitated thanks to the removable nature of the rings with the plate, and on the other hand of the entity made up of this plate and the rings with the sole carrier.
• the plate is housed between the block and the sole carrier, and the block is removably attached to the sole carrier to hold the plate between the block and the sole carrier.
• the rings are held together reliably with the sole carrier, while allowing their easy replacement.
• the lower face has a housing, the plate being housed in this housing without protruding from the rest of the lower face when the at least one junction ring is inserted into the at least one secondary duct, and the sole covers the plate when the sole is assembled with the sole carrier by the assembly mechanism.
• the block is an integral part of the sole carrier.
• the plate is mechanically secured to the sole carrier or the block by means of a securing mechanism.
• the ring(s) are held together with the sole carrier more effectively, thanks to the securing mechanism.
• the housing has a tapped hole and the plate is pierced with a screw hole which is opposite the tapped hole when the plate is housed in the housing, and the securing mechanism consists of the tapped hole and a screw V adapted to be screwed into the tapped hole through the plate by the screw hole.
• the securing mechanism is simple.
• the friction assembly further comprises a return mechanism which is capable of pressing the rings against the second face. [0031]
• the seal between the rings 8 and the sole 2 is improved.
• the assembly mechanism comprises a reception slide which is formed on the lower face, and a profile which is formed on the second face and which is configured to cooperate with the reception slide.
• the invention also relates to a method for mounting a junction ring on a sole carrier with a block connected to a suction device, the sole carrier comprising a lower face, an upper face, and at least one duct secondary with central axis A, the sole carrier and the junction ring forming part of a friction assembly for a braking system for railway rolling stock, the friction assembly further comprising a sole made of friction material comprising a first face which is the friction face, a second face which is capable of being assembled on the lower face by an assembly mechanism, and at least one primary duct which connects the first face and the second face, the at least one junction being adapted to be inserted into the at least one secondary conduit and to establish a junction with the at least one primary conduit when the at least one primary conduit is aligned with one of the at least one secondary conduit.
• the method comprises the following steps:
• the block is provided with a cavity which is connected by a circuit to the suction device, with at least one hole which connects the cavity and the upper face and which is aligned with the at least one secondary duct;
• a plate is provided and the at least one junction ring is removably mounted on the plate;
• the invention also relates to another method for mounting a junction ring on a sole carrier comprising a lower face and an upper face, and having a block located on the side of the upper face and connected to a suction device , the sole carrier comprising at least one secondary duct of central axis A, the block forming an integral part of the sole carrier at the level of the upper face, the sole carrier and the junction ring forming part of a friction assembly for a brake system for railway rolling stock, the friction assembly further comprising a sole made of friction material comprising a first face which is the friction face, a second face which is adapted to be assembled on the lower face by a mechanism assembly, and at least one primary duct which connects the first face and the second face, the at least one junction ring being able to be inserted into the at least one secondary duct and to establish a junction with c the at least one primary conduit when the at least one primary conduit is aligned with one of the at least one secondary conduit.
• the method comprises the following steps:
• the block is provided with a cavity which is connected by a circuit to the suction device, with at least one hole which connects the cavity and the upper face and which is aligned with the at least one secondary duct, and the lower face is provided with a housing;
• a plate is provided and the at least one junction ring is removably mounted on the plate;
• the plate is then housed in the housing so that the plate does not protrude from the rest of the lower face and simultaneously the at least one junction ring is inserted into the at least one secondary duct by sliding along the axis A from the underside, the entity consisting of the plate and the at least one junction ring being removably secured to the sole carrier;
• the block is an integral part of the sole carrier at the level of the upper face.
• the block is removably fixed on the sole carrier at its upper face.
• the method comprises, after step (c) and before step (d), the following step (c2): (c2) the plate is mechanically secured to the sole carrier or the by means of a locking mechanism.
• Figure 1 is an exploded perspective view of a friction assembly according to a first embodiment of the invention, with the sole disassembled from the sole carrier.
• Figure 2 is a perspective and partial sectional view in the (X, Z) plane of the region of the friction assembly of Figure 1 which includes the block.
• Figure 3 is an exploded perspective view of the friction assembly plate and rings of Figure 1.
• Figure 4 is an exploded perspective view of a friction assembly according to a variant of Figure 1, with the sole disassembled from the sole carrier.
• Figure 5 is a perspective view and partial section in the plane (X, Z) of the region of the friction assembly according to Figure 4 which includes the block.
• Figure 6 is an exploded perspective view of a friction assembly according to a second embodiment of the invention, without the sole.
• Figure 7 is a perspective and sectional view in the plane (X, Z) of the region of the friction assembly according to Figure 6 which includes the rings.
• FIG. 8 Figure 8 is an exploded perspective view of the plate and rings of the friction assembly, according to an alternative embodiment.
• FIG. 9 Figure 9, already described, is a bottom view of a friction assembly according to the prior art.
• FIG. 10 Figure 10, already described, is a cross section along line X-X of Figure 9.
• Figure 1 illustrates a friction assembly 1 for brake system for railway rolling stock.
• these brakes are disc brakes.
• these brakes are brakes on a tread of the rolling stock wheel.
• the assembly extends longitudinally along a longitudinal axis X, and vertically along a vertical axis Z directed upwards.
• the transverse axis Y forms a trigonometric reference with the axes X and Z, this reference being used for the figures 1, 2, 4, 5 and 6.
• the friction assembly 1 is represented in perspective in view from below, with different parts separated for clarity.
• the friction assembly 1 comprises on the one hand a sole carrier 3, and on the other hand at least one sole 2 made of friction material.
• the sole holder 3 has a lower face 31, and an upper face 32.
• the sole 2 has a first face 21 which is the friction face, and a second face 22.
• the sole 2 can be in one part, or in two separate halves as shown in Figure 1.
• the sole 2 is assembled with the sole carrier 3 by an assembly mechanism (4, 5).
• this assembly mechanism comprises a reception slide 5 which is formed on the lower face 31, and a profile 4 which is formed on the second face 22 and which is configured to cooperate with the reception slide 5.
• the assembly of the sole 2 with the sole holder 3 is achieved by inserting and translating the profile 4 in the slide 5 along the longitudinal axis X.
• the assembly mechanism is then such that this assembly is removable.
• the assembly of the sole 2 with the sole holder 3 is removable, which allows a replacement of the sole 2 once worn.
• the sole 2 comprises at least one primary conduit 28 connecting the first face 21 and the second face 22.
• the side wall of this primary conduit 28 is sealed, and is open only on any grooves present on the first face 21.
• the sole 2 comprises two primary ducts 28 (one on each half of the sole 2).
• the sole holder 3 comprises at least one secondary duct 38 of central axis A which connects the upper face 32 and the lower face 31 in sealed manner at the bottom of the reception slide 5.
• sole 3 comprises two secondary ducts 38.
• the friction assembly 1 comprises at least one junction ring 8 inserted into the at least one secondary duct 38 and establishing a junction with the at least one primary duct 28.
• FIG. -sole 3 comprises two junction rings 8.
• each primary duct 28 is aligned with a secondary duct 38, that is to say that the central axis of each duct primary 28 is the central axis A of the secondary duct 38 with which it is aligned.
• a junction ring 8 comprises a tubular body 81.
• the internal diameter of the body 81 is greater than the diameter of a primary duct 28 in order to compensate for the clearances between the sole 2 and the sole carrier 3 along the axis X.
• Each junction ring 8 extends to one end of the body 81 by a collar 82 which extends radially outwards. The other end of body 81 is the distal end of body 81.
• Each junction ring 8 is removably mounted on a plate 40, so that the plate 40 carries all the junction rings 8.
• Each ring 8 is mounted on the plate 40 so that the plate 40 takes support against the flange 82.
• the distal end of the body 81 is therefore located on the other side of the plate 40 with respect to the flange 82.
• the plate 40 extends substantially along a plane, and the longitudinal axis of each body 81 is perpendicular to this plane.
• the plate 40 and the junction rings 8 are illustrated in Figure 2 in the case of two rings 8.
• the body 81 of each of the rings 8 is in two parts in the extension of one another.
• the entity formed by the rings 8 and the plate 40 is described in detail below with reference to Figure 3.
• the body 81 is in one part, as illustrated in Figure 8 and described below.
• the plural article “des” is used before the elements "primary ducts 28", “secondary ducts 38", “junction rings 8", “holes 58”, and the determinant "each to handle cases of two or more of these.
• the description below is also valid in the case of a single primary conduit 28, a single secondary conduit 38, a single junction ring 8 and a single hole 58.
• the underside 31 of the sole carrier 3 has a housing 314. This housing is a depression. One end of each secondary duct 38 opens into the housing 314.
• the friction assembly 1 further comprises a block 50.
• this block 50 is a pneumatic block.
• the block 50 covers the upper face 32 of the sole holder 3 at the level of the portion of the upper face 32 which comprises the orifices of the secondary ducts 38.
• the block 50 comprises a cavity 55 which is connected to a circuit 51 which is connected to a suction device.
• Block 50 includes holes 58 which connect cavity 55 and upper face 32, each of the holes 58 being located opposite one of the secondary ducts 38. As illustrated in FIG. 1, block 50 therefore includes two holes 58.
• the block 50 is removably fixed (for example by mechanical connection, for example using screws and nuts) with the sole carrier 3.
• the block 50 is an integral part of the sole holder 3 at the level of the upper face 32.
• forming an integral part it is meant that the block 50 is not separable from the sole holder. 3, except with tools.
• the block 50 is molded with the sole holder 3, or is welded with the sole holder 3.
• the solution of the invention is particularly interesting because, the block 50 forming an integral part of the sole holder 3, a ring 8 cannot be inserted into a secondary duct 38 via the upper face 32.
• Each ring 8 is, in both cases, inserted into a secondary duct 38 only by the lower face 31, before assembly of the sole 2 with the sole holder 3.
• the diameter of each of the holes 58 of the block 50 is equal to or greater than the outer diameter of the body 81.
• the plate 40 is then located on the side of the lower face 31.
• the junction rings 8 are made to slide in the holes 58 of the block 50 and in the secondary ducts 38 and the plate 40 is housed in the housing 314 without the plate 40 protruding from the rest of the lower face 31.
• FIG 1 and Figure 2 illustrate the situation where the housing 33 does not open onto the upper face 32.
• Figure 2 is a perspective view and partial section in the plane (X, Z) of the region of the friction assembly of Figure 1 that includes block 50.
• housing 314 is a cavity that has a bottom, and the depth of housing 314 is the distance (in the Z direction) between the bottom of the cavity and the underside 31 around the cavity.
• the depth of the housing 314 is strictly less than the thickness of the sole carrier 3 (this thickness is the distance between the lower face 31 and the upper face 32).
• the thickness of the plate 40 is less than the depth of the housing 314 such that when the plate 40 is in contact with the bottom of the housing 314 (i.e.
• the plate 40 does not protrude from the housing 314.
• the plate 40 is placed in the housing 314 until it comes into abutment against the bottom of the housing 314.
• the flanges 82 slide in the secondary ducts 38, and the bodies 81 of the junction rings 8 are engaged in the secondary ducts 38 and in the holes 58 of the block 50.
• the plate 40 is provided with as many holes 42 as there are junction rings 8. In the case illustrated, there are two holes 42 for the two rings 8. The two rings 8 being identical and the two holes 42 being identical, some of the references are not duplicated.
• the body 81 of each of the rings 8 is in two parts in the extension of one another.
• the proximal part 811 of the body 81 carries the flange 82.
• the distal part 812 of the body 81 is located in the extension of the proximal part 811 and carries at its distal end a radial lip 8121.
• the external diameter of the distal part 812 and the external diameter of the proximal part 811 are each less than or equal to the diameter of the hole 42 such that each of these parts is able to slide in the hole 42.
• the external diameter of the distal part 812 is equal to the outer diameter of the proximal part 811.
• the proximal part 811 of the body 81 is inserted into the hole 42 until the flange 82 comes into abutment against the edge of the hole 42.
• the distal part 812 is assembled on the proximal part 811. This assembly is carried out for example by screwing or snap-fastening.
• the external diameter of the collar 82 and the external diameter of the lip 8121 are each greater than the diameter of the hole 42 so that the ring 8, after assembly, cannot slide outside the plate 40.
• the rings 8 are removably secured to the plate 40.
• the annular top of the flange 82 protrudes from the surface of the plate 40.
• this annular top is the only part of the ring 8 which protrudes from the surface of the plate 40 on the side of the flange 82.
• a return mechanism 90 is mounted between the plate 40 and the flange 82 of the ring 8.
• this return mechanism is a spring (for example a coil spring) which is mounted on the body 81.
• the return mechanism 90 At rest , the return mechanism 90 is in contact with the plate 40 and the flange 82, and the plate 40 protrudes from the lower face 31 (for example at the bottom of the slide 5 if this slide 5 is present).
• the sole 2 is assembled with the sole holder 3 (for example by sliding the profile 4 of the sole 2 in the slide 5) the second face 22 is in contact with the lower face 31, the rings 8 are pushed against the plate 40 which is in the housing 314 and compress the return mechanism 90.
• Figure 2 and Figure 3 the return mechanism 90 is shown in the rest state for one of the rings 8, and in the compressed state for the other of the rings 8.
• the return mechanism 90 is housed in an annular housing 49 which surrounds the hole 42, so that only the annular top of the flange 82 protrudes from the surface of the plate 40.
• Figure 4 and Figure 5 illustrate the variant where the depth of the housing 314 is equal to the thickness of the sole holder 3.
• the other characteristics of the sole holder 3 are identical between Figure 1 and Figure 4.
• Figure 5 is a perspective view and partial section in the plane (X, Z) of the region of the friction assembly of Figure 4 which includes the block 50.
• the housing 314 opens on the face upper 32, that is to say that the housing 314 is a hole which passes through the sole holder 3.
• the plate 40 is placed in the housing 314 until it comes into abutment against the edge of the holes 58.
• the collars 82 slide in the secondary ducts 38, and the bodies 81 of the junction rings 8 slide in the secondary ducts 38 and in the holes 58 of the block 50.
• the top of the collar 82 is held in abutment against the second face 22 of the sole 2 by the return mechanism 90.
• the collar 82 thus also fulfills a sealing function between the rings 8 and the second face 22.
• this tightness is reinforced by a gasket 48 which surrounds the periphery of the plate 40 and which bears against the side face of the housing 314, as shown in FIG. 2 and in FIG. 5. Seal 48 is also visible in Figures 3 and 7.
• the plate 40 achieves a locking in translation of the junction rings 8 in the secondary duct 38 along the axis A in both directions.
• each hole 42 of the plate 40 may comprise an annular housing in which an O-ring 428 is partially housed. Each O-ring 428 then bears against the side face of the body 81 of the ring 8 so as to make a seal between the ring 8 and the plate 40. These O-rings 428 are visible in Figure 7.
• the first step (step (a)) consists in providing the block 50 with a cavity 55 which is connected by a circuit 51 to the device suction, one or more holes 58 connecting this cavity 55 and the upper face 32 of the sole holder 3 and each aligned with a secondary duct 38 of the sole holder 3, and to provide the lower face 31 with a housing 314.
• step (a) This method also applies to the case where the block 50 is fixed beforehand in a removable manner on the sole holder 3 at the level of its upper face 32. In this case, during step (a), the block 50 removably on the sole holder 3 at its upper face 32.
• step (b) a plate 40 is provided and each junction ring 8 is removably mounted on the plate 40.
• step (c)) after step (b), the plate 40 is housed in the housing 314 so that the plate 40 does not protrude from the rest of the lower face 31 and simultaneously inserts each junction ring 8 into a secondary duct 38 by sliding along the axis A from the underside 31, so that the entity formed by the plate 40 and the junction ring(s) 8 is removably secured with the sole carrier 3.
• the plate 40 has around each of its holes 42 an annular shoulder 44 whose outer diameter is substantially equal to and less than the diameter of the hole 58, which facilitates the assembly of the entity consisting of the plate 40 and rings 8 on sole holder 3 and block 50.
• each ring 8 then extends at least to the edge of the hole 58. For example, the body 81 enters the hole 58, as shown in Figures 2 and 5.
• this return mechanism 90 In the case where a return mechanism 90 is present, this return mechanism 90 must be compressed so that the flanges 82 do not protrude from the rest of the lower face 31.
• step (d) the sole 2 is assembled with the sole carrier 3 by the assembly mechanism (4, 5) until the sole 2 covers the secondary ducts 28 and plate 40.
• this return mechanism 90 presses the flanges 82 of the rings 8 against the second face 22 of the sole 2. A seal is thus established between the rings 8 and the sole. 2.
• the friction assembly 1 comprises a mechanism 70 for securing the plate 40 with the sole carrier 3 or the block 50 when the plate 40 is housed in the housing 314.
• this securing mechanism 70 prevents the plate 40 from coming out of the housing 314 and therefore prevents the junction rings 8 from coming out of the secondary ducts 38.
• this fastening mechanism 70 is removable, which makes it possible to easily change the plate 40 and the rings 8 if desired .
• step (c2) the plate 40 is mechanically secured to the sole carrier 3 or the block 50 by means of the securing mechanism 70 (step (c2)) .
• the securing mechanism 70 prevents the plate 40 from protruding out of the housing 314.
• the housing 314 has a tapped hole 75.
• the tapped hole 75 is located on the bottom of this housing 314, and more possibly on the block 50.
• the tapped hole 75 is located on the block 50.
• the plate 40 is pierced with a screw hole 47 (visible in Figure 3) through which a screw V is able to pass, so that the screw V passes through the plate 40.
• the screw V has a head which comes to rest against the plate 40 when the screw V passes through the hole of screw 47, and which prevents the screw V from passing entirely through the plate 40.
• the plate 40 has a depression which is able to receive the screw head V.
• the screw head V is conical and the depression is flared in cone-shaped so as to marry the cone of this head.
• the screw head V does not protrude from the plate 40.
• the screw V does not interfere with the sliding of the sole 2 relative to the sole carrier 3.
• the screw hole 47 is opposite the tapped hole 75 when the plate 40 is housed in the housing 314. Screw V is able to be screwed into tapped hole 75.
• Securing mechanism 70 consists of tapped hole 75 and screw V.
• step (c2) the plate 40 is mechanically joined to the sole carrier 3 or the block 50 by passing the screw V through the screw hole 47 until the screw head V is housed in the depression of the plate 40. The rest of the screw V then passes through the plate 40. Then the screw V is screwed into the tapped hole 75. The screw V prevents the plate 40 from separating from the sole carrier 3.
• FIG. 6 illustrates a friction assembly 1 in exploded perspective top view. Footing 2 is not shown.
• the upper face 32 of the sole holder 3 has a housing 324 capable of receiving the plate 40.
• the secondary ducts 38 open out into this housing 324.
• the flanges 82 and the body 81 of the rings 8 are inserted into the secondary ducts 38 of the sole holder 3.
• the block 50 is then removably fixed to the upper face 32 of the sole holder 3, above the plate 40.
• This fixing takes place by a mechanical fastening mechanism.
• this mechanism consists of a plurality of screws and nuts, the sole holder 3 and the block 50 having holes to receive these screws.
• the number of screws and nuts is four in number, distributed around the plate 40.
• FIG. 7 is a perspective view and in Partial section of the region of Figure 6 which includes the block 50 and the secondary ducts 38.
• each junction ring 8 has a body 81 which is in two parts.
• each junction ring 8 is in one part. This variant is illustrated in FIG. 8, and can be applied to the first embodiment and to the second embodiment described above.
• the body 81 is in a single part, and has at its distal end elastic petals 813 which, at rest, extend the body 81 and flare radially outwards.
• the petals 813 When one begins to insert the ring 8 into the hole 42 of the plate 40, the petals 813 are deformed (pushed) elastically inwards, which allows the distal end to pass through the hole 42. When the petals 813 have passed hole 42, they return to their initial position (at rest). If one tries to remove the ring 8 from the hole 42, the petals 813 abut against the edge of the hole 42 and prevent each ring 8 from being removed from the hole 42.
• the first step (step (a) ) consists in providing the block 50 with a cavity 55 which is connected by a circuit (51) to the suction device, with at least one hole 58 which connects the cavity 55 and the upper face 32 and which is aligned with the secondary duct 38.
• step (b) a plate 40 is provided and each junction ring 8 is removably mounted on the plate 40.
• step (c) after step (b), the plate 40 is placed in a housing 324 on the upper face 32 of the sole holder 3 and simultaneously each junction ring 8 is inserted into a separate secondary duct 38 by sliding along the axis A from the upper face 32. Then the block 50 is placed on the plate 40 so that the entity constituted by the plate 40 and the junction ring(s) 8 is taken sandwiched between the sole carrier 3 and the block 50.
• step (d) the block 50 is removably attached to the sole carrier 3.
• step (e) the sole 2 is assembled with the sole carrier 3 by the assembly mechanism (4, 5) until the sole 2 covers the secondary ducts 28 and plate 40.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Transportation (AREA)
• General Engineering & Computer Science (AREA)
• Braking Arrangements (AREA)
• Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=77411922

Family Applications (1)

Country Status (6)

Family Cites Families (5)

• 2021
  • 2021-07-16 FR FR2107701A patent/FR3125267B1/fr active Active
• 2022
  • 2022-06-28 EP EP22735903.1A patent/EP4370398A1/fr active Pending
  • 2022-06-28 WO PCT/EP2022/067690 patent/WO2023285130A1/fr active Application Filing
  • 2022-06-28 CA CA3223703A patent/CA3223703A1/fr active Pending
  • 2022-06-28 KR KR1020247000259A patent/KR20240035436A/ko unknown
  • 2022-06-28 CN CN202280049553.9A patent/CN117730025A/zh active Pending

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