• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an aircraft wheel comprising a rim and a tire (20) received on the rim, the rim comprising two parts (1; 2) assembled together by means of assembly bolts (5), one of which parts having a housing (3) in which is arranged a seal (4) which is interposed between the two parts, the wheel being characterized in that at least one of the parts comprises at least one channel (6) extending under the seal to organize a leakage path between firstly a volume of gas delimited by the rim and the tire and secondly a space between the parts, the path being nominally closed by the seal when the bolts are tightened correctly but allowing a gas leakage of said volume when the bolt associated with said orifice is not properly tightened or is missing.
    公开号:FR3019144A1
    申请号:FR1452738
    申请日:2014-03-28
    公开日:2015-10-02
    发明作者:Xavier Delayre；Yohann Mazan
    申请人:Messier Bugatti Dowty SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to an aircraft wheel comprising a channel organizing a leak path in the wheel. BACKGROUND OF THE INVENTION Aircraft wheels are known having a rim and a tire received on the rim, the rim comprising two parts assembled by means of regularly distributed bolts. For example, the rim has two half-rims whose sails are drilled to receive bolts. We also know rims which one of the heels is removable and is assembled to the other heel by bolts. Typically, such an assembly may require about twenty bolts. For this purpose, the two parts are pierced with orifices facing able to receive the bolts. Furthermore, one of the parts usually comprises a housing in which is arranged a seal which is thus crushed between the two parts to seal the gas volume defined by the rim and the tire. However, it can happen that a bolt breaks off so that the two parts are no longer tightly squeezed together. It can even happen that one of the bolts is missing. This can lead to damage to the wheel. However, it is difficult to detect with the naked eye the loosening of said bolt. OBJECT OF THE INVENTION The object of the invention is to propose an aircraft wheel making it possible to obviate the aforementioned problem. SUMMARY OF THE INVENTION With a view to achieving this object, an aircraft wheel comprising a rim and a tire received on the rim is proposed, the rim comprising two parts assembled together by means of assembly bolts. one of the parts having a housing in which is arranged a seal which is interposed between the two parts. According to the invention, one of the parts comprises at least one channel extending under the seal and opening into the housing to organize a leakage path between on the one hand a volume defined by the rim and the tire and d on the other hand a space between the parts, the path being nominally closed by the seal when the bolts are correctly tightened but permitting leakage of said volume outwards when one of the bolts adjacent said orifice is not clamped correctly or is missing. Thus, in the case of a loosened bolt, the channel makes it possible voluntarily to provoke leakage of the gas contained in the tire towards the outside of the wheel, which entails a rapid and visible deflation of the tire. It is therefore easy to see the existence of a problem in view of the deflated tire which encourages to study in more detail the tightening state of the various bolts.
    [0002] The detection of a fixing problem between the two parts of the rim is thus simplified. In addition, it limits the risk that the wheel is damaged by the problem of fixing between the two parts of the rim.
    [0003] BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood in the light of the following description of particular embodiments of the invention, with reference to the figures of the accompanying drawings, in which: FIG. 1 is a longitudinal sectional view of FIG. an aircraft wheel according to a first embodiment of the invention. - Figure 2 is a partial front view of the half-rim lb illustrated in Figure 1 showing one of the channels. FIG. 3 is an enlarged view of the detail A illustrated in FIG. 1, an exaggerated space having been illustrated between the half-rims. FIG. 4 is an enlarged view of the detail A, without the seal and without the half-rim 2a. FIG. 5 is a view in longitudinal section of an aircraft wheel according to a second embodiment of the invention, in a plane passing through the axis of rotation of the wheel and extending for half through the one of the assembly bolts and extending for half between two consecutive assembly bolts. FIG. 6 is an enlarged sectional view of the detail B illustrated in FIG. 5, an exaggerated space having been illustrated between the rim parts. DETAILED DESCRIPTION OF THE INVENTION According to a first embodiment, the wheel illustrated in FIGS. 1 and 2 comprises, in a manner known per se, two half-rims 1, 2 which each comprise a rim portion 1a, 2a, a web 1b , 2b, and a half hub lc, 2c. One of the half-rims 1 comprises a housing 3 formed in its web 1b and in which is arranged a seal 4. The half-rims 1, 2 are moved in a direction parallel to an axis of rotation of the wheel X and have centering spans to ensure proper relative positioning of the half-rims 1, 2. The half-rims are held in position by assembly bolts 5 arranged in holes 7 drilled in the half rims (only one bolt is visible here, but there are several, typically 4 to 24, regularly distributed). In a manner known per se, the bolts 5 are screwed and tightened to assemble the two half-rims 1, 2 after mounting a tire 20 on the rim portions 1a, 1b. In this position, the seal 4 is crushed between the two half-rims 1, 2 and thus prevents the gas contained in a volume defined by the tire 20 and the two half-rims 1, 2 to escape to the outside the wheel. As illustrated in Figures 3 and 4, and according to the invention, the half-rim having the housing 3 comprises a plurality of channels 6 (only one of which is visible in the figures). Each channel 6 extends between two bolts 5 assembling the wheel. The half-rim 1 therefore has as many channels 6 as it does not have bolts 5. Preferably, each channel 6 extends equidistant from the two associated orifices 7 in the half-rim 1.
    [0004] Furthermore, each channel 6 extends under the seal 4 and opens at one of its ends in the housing 3 and at the other of its ends at the junction between the two webs lb, 2b. Thus, each channel 6 is arranged to organize a leakage path between the volume defined by the tire and the outside through the space between the half-wheels. When the bolts 5 are all tightened correctly, these paths are closed by the seal 4. When one of the bolts 5 is not properly tightened or is missing, the two half-rims 1, 2 deviate one from the other. the other at said bolt 5 so that the seal 4 is no longer correctly crushed by the two half-rims 1, 2 at this level. The seal 4 can then prevent the gas from escaping through the leakage path organized by the two adjacent channels to said bolt 5. The tire deflates, which is identifiable by maintenance crews, or by measuring the pressure in the tire. Referring to Figure 4, the half-rim 1 com35 taking the housing 3 is shaped so that the end of its web lb intended to be opposite the web 2b of the other half-rim 2 comprises successively, according to the the axis of rotation of the wheel X towards the other web 2b, a rounded portion 10, a groove 11 forming here the housing 3 and a shoulder 12. The shoulder 12 has for example here a height of the order of 0 , 8 millimeters. The half-rim 1 is machined by milling at the shoulder 12 so as to locally remove said shoulder 12 in different areas to form the different channels 6. Each channel 6 thus formed extends from the groove 11 to the face 13 of the web lb which is facing the other web 2b. Here, the channel has a bottom inclined relative to the axis of rotation X and has a maximum depth output on the face 13 (typically of the order of 2 millimeters). It is thus very simple to form the channels 6 even on half-rims already existing. With reference to FIGS. 5 and 6, a second embodiment of the invention will now be described. Unlike the first embodiment, the rim of the aircraft wheel comprises a main portion 101 and a removable portion 102 forming heel 121 in place of the two half-rims 1, 2. The main portion 101 comprises, in a known manner in itself, a hub 101c, an annular outer portion 101a for receiving a tire 120 and shaped to have a heel 122 at one of its ends, the other of its ends 123 being shaped to receive the removable portion 102 which is attached to the annular outer portion 101a after placement of the tire 120. The main portion 101 further comprises a web 101b extending between the hub 101c and the annular outer portion 101a. The main part 101 here comprises a housing 103 formed in its web 101b and in which is arranged a seal 104.
    [0005] The main portion 101 and the removable portion 102 are brought closer in a direction parallel to an axis of rotation of the wheel X and include centering spans to ensure the proper relative positioning of the main portion 101 and the removable portion 102. parts 101, 102 are held in position by assembly bolts 105 arranged in holes pierced opposite in the two parts 101, 102 of the rim. In a manner known per se, the bolts 105 are screwed and tightened to assemble the two parts 101, 102 after mounting the tire 120 on the annular outer portion 101a. In this position, the seal 104 is crushed between the two parts 101, 1021 and thus prevents the gas contained in a volume delimited by the tire 120 and the rim from escaping to the outside of the wheel. As illustrated in FIG. 6, and according to the invention, the main part 101 comprises a plurality of channels 106 (only one of which is visible in the figures). Each channel 106 extends between two assembly bolts 105 of the wheel. The main part 101 therefore has as many channels 106 as it does not have bolts. Preferably, each channel 106 extends equidistant from the two associated orifices in the main part 101. Moreover, each channel 106 extends under the seal 104 and opens at one of its ends into the housing 103 and at the other of its ends at the junction between the web 101b of the main part 101 and a web 102b of the removable part 102. Thus, each channel 106 is arranged to organize a leakage path between the volume defined by the tire 120 and the outside passing through the space between the main part 101 and the removable part 102.
    [0006] The main part 101 is here shaped so that the end of its web 101b intended to be facing the web 102b of the removable portion 102 comprises successively, along the axis of rotation of the wheel X towards the removable portion 102 , a rounded, a groove here forming the housing and a shoulder. The shoulder has for example here a height of the order of 0.8 millimeters. The main portion 101 is machined by milling at the shoulder so as to loosely remove said shoulder in different zones to form the various channels 106. Each channel 106 thus formed extends from the groove to the face of the web 101b which is opposite the web 102b of the removable part 102. Here, the channel 106 has a bottom inclined with respect to the axis of rotation X and has a maximum depth at the outlet on the face of the web 101b which is opposite the veil 102b (typically of the order of 2 millimeters). The invention is not limited to what has just been described, but on the contrary encompasses any variant within the scope defined by the claims. Although in the illustrated example, the half-rims each comprise a half-hub, we can of course consider any other cutting, as long as the half-rims are assembled by means of assembly bolts. The aircraft wheel may include a different number of channels than indicated. Of course, the channel may have a shape different from that illustrated. Thus although here the channel has a bottom inclined relative to an axis of rotation of the wheel, the channel may have a bottom parallel to said axis. The channel may have other dimensions than those described, the channel must however have adequate dimensions to prevent the seal from sagging inside the channel when the bolts are tightened properly which would affect the tightness of the volume gas. For example, although here the half-rim, or the main part, is machined to a depth of 2.4 millimeters, it will be possible to machine the half-rim, or the main part, to another depth, for example a depth between 0.8 and 2.4 millimeters at the side of the part of the rim at the junction with the other part of the rim. If the half-rim, or the main part, has a shoulder on which the web of the other half-rim, or of the removable part, is intended to rest, the half-rim, or the main part, shall be machined. , so as to locally delete said shoulder completely. The channel will thus have a smooth internal surface which will facilitate the evacuation of the gas. Finally, the channel or channels may be hollowed out in those of the half-rims which does not include the receiving housing of the seal, as long as these channels are nominally plugged by the seal when the bolts are properly tightened. Similarly, the channel or channels may be dug in the removable portion that does not include the receiving housing of the seal, as long as these channels are nominally plugged by the seal when the bolts are properly tightened.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. An aircraft wheel having a rim and a tire (20; 120) received on the rim, the rim being in two parts (1,2; 101,102) assembled together by means of assembly bolts (5; 105), one of the parts having a housing (3; 103) in which is arranged a seal (4; 104) which is interposed between the two parts, the wheel being characterized in that at least one of the parts comprises least one channel (6; 106) extending under the joint to organize a leakage path between firstly a volume of gas delimited by the rim and the tire and secondly a space between the two parts, the path being nominally closed by the seal when the bolts are properly tightened but allowing a gas leakage of said volume when the bolt associated with said orifice is not properly tightened or is missing.
    [0002]
    2. Wheel according to claim 1, wherein the rim comprises two half-rims (1, 2), each half-rim respectively forming one of the parts of the rim.
    [0003]
    3. Wheel according to claim 2, wherein the channel (6) is hollowed in the half-rim having the housing (3), the channel opening into the housing.
    [0004]
    4. Wheel according to claim 3, wherein the channel (6) has a bottom inclined relative to an axis of rotation (X) of the wheel.
    [0005]
    5. Wheel according to claim 3, shaped so that the channel (6) opens at one end on one side (13) of the half-rim (1) facing the other half-rim (2).
    [0006]
    Wheel according to claim 1, in which the rim consists of a main part (101) and a removable part (102) forming a heel (121), the main part comprising: a hub (101c) - An annular outer portion (101a) for receiving the tire (120) and shaped to have a bead (122) at one end, the other end being shaped to receive the removable portion which is reported on the annular outer portion after placement of the tire, - a web (101b) extending between the hub and the annular outer portion, and - the housing (103).
    [0007]
    7. Wheel according to claim 6, wherein the channel (106) is hollowed in the main part (101), the channel opening into the housing (103).
    [0008]
    8. Wheel according to claim 7, wherein the channel (106) has a bottom inclined relative to an axis of rotation (X) of the wheel.
    [0009]
    9. Wheel according to claim 7, shaped so that the channel (106) opens at one end to a face of the web (101b) of the main part facing the removable portion (102).
    [0010]
    Wheel according to claim 1, wherein one of the parts comprises a plurality of channels (6; 106) each extending between two consecutive connecting bolts (5; 105).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2923858B1|2017-12-06|Aircraft wheel comprising a duct establishing a leakage path in the wheel
    CA2487471C|2011-07-12|Control of leak zone under blade platform
    EP0893280A1|1999-01-27|Bicycle rim for mounting tubeless tyres and bicycle wheel
    EP0112746A1|1984-07-04|Connecting device for quick mounting and disassembling
    CA2644306C|2016-10-18|Turbine engine dump valve
    WO1992001179A1|1992-01-23|Inflatable-joint sealing device for movable doors and panels
    EP1225322A1|2002-07-24|Apparatus to centre a tube in a turbine shaft
    EP0878328A1|1998-11-18|Semi-tubular tyre and roller with such tyres
    WO2018224588A1|2018-12-13|Connecting device
    FR2891889A1|2007-04-13|End piece for sealed connect coupling, has rear edge presenting female configuration comprising annular groove and annular protection wall extending towards rear from outer edge of annular groove
    FR2862367A1|2005-05-20|Crimp connector for electrically conductive tube, has electrically insulating ring, sealing joint and protection ring housed in orifice to prevent direct contact between tube and connector before crimping
    CA2587096C|2014-02-25|Aircraft engine compressor assembly comprising hammer attachment blades with inclined roots
    FR2784331A1|2000-04-14|Assembly forming roller from semi-hollow tires slid onto central tube includes ridged assembly bands on tube, keying into recesses at tire edges, with clamping bands fitted into recesses in tire end faces
    EP1153769B1|2007-06-13|Run-flat device for automotive vehicle
    FR2766424A1|1999-01-29|VALVE AND RIM FOR BICYCLE WHEEL PROVIDED FOR TUBELESS MOUNTING
    FR2867251A1|2005-09-09|CRIMPING FITTING COMPRISING A SECURE VISUALIZING RING
    EP0470918B1|1993-12-22|Pipe connection
    EP3658479A1|2020-06-03|Vacuum chamber with easier assembly for gripper
    EP3102865B1|2018-04-25|Ring for fastening a pipe to a tubular body and connection means comprising such a ring
    FR3073732B1|2019-11-22|VASCULAR ADAPTER AND KIT OF VASCULAR ADAPTERS
    FR2928903A1|2009-09-25|Package for agri-food e.g. eclair, has cover covering food provided on base, and vertical bracing units holding food between cover and base, where base is equipped with two stampings that form hollow cavity
    CA2905578A1|2016-04-13|Breaker panel
    LU82667A1|1982-02-17|CONNECTION FOR SMOOTH TUBE TUBES
    EP0807780B1|2002-03-20|Device for sealingly connecting two flat pipes
    FR2627572A1|1989-08-25|Flanged, bolted flexibly sealed pipe joint - has flange of ribbed, conical segments first bolted into ring and then axially, to squeeze flexible seal on to pipe end cover
    同族专利:
    公开号 | 公开日
    FR3019144B1|2016-04-01|
    US9630448B2|2017-04-25|
    CN104943471A|2015-09-30|
    CN104943471B|2017-09-22|
    EP2923858A1|2015-09-30|
    CN107685593A|2018-02-13|
    US9855792B2|2018-01-02|
    US20150273938A1|2015-10-01|
    US20170113486A1|2017-04-27|
    EP2923858B1|2017-12-06|
    CN107685593B|2021-02-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB890959A|1959-02-09|1962-03-07|Willy Eckert|Improvements relating to tubeless pneumatic tyres|
    WO1998030403A1|1997-01-13|1998-07-16|Hayes Wheels International, Inc.|Take apart safety vehicle wheel assembly|
    DE202012101252U1|2012-04-05|2013-07-09|Otto Fuchs Kg|Multi-part aircraft wheel|
    US532420A|1895-01-08|Joseph hirth |
    US2552082A|1947-03-20|1951-05-08|Charles S Ash|Vehicle wheel|
    US2990216A|1956-11-19|1961-06-27|Bendix Corp|Forged aircraft wheels for landing gear assemblies|
    ZA868336B|1985-12-05|1987-06-24|Budd Co|Seal construction for divided rim wheel assembly|
    US5000241A|1989-05-09|1991-03-19|Patecell Theodore C|Unitary bead-lock and run-flat roller support ring for pneumatic tires on two-part wheels|
    US5215137A|1989-11-06|1993-06-01|Motor Wheel Corporation|Safety tire and take-apart wheel construction|
    ITBO20000025A1|2000-01-25|2001-07-25|O Z S P A|CAR WHEEL IN THREE PARTS.|
    FR2863203B1|2003-12-08|2007-06-08|Hutchinson|FLAT ROLLING DEVICE FOR MOTOR VEHICLE AND MOUNTING ASSEMBLY INCORPORATING SAME|
    US7779877B2|2008-05-27|2010-08-24|Hayes Lemmerz International, Inc.|Take apart vehicle wheel assembly|
    US8505598B2|2009-07-31|2013-08-13|Hutchinson, S.A.|Wheel disassembly safety device|
    US8931534B2|2010-03-10|2015-01-13|Accuride Corporation|Vehicle wheel assemblies and valves for use with a central tire inflation system|
    CN201971153U|2011-02-21|2011-09-14|北京北摩高科摩擦材料有限责任公司|Front airplane wheel of airplane|
    CN202368261U|2011-12-19|2012-08-08|韶关市正星车轮有限公司|Wheel|US9475342B2|2012-01-20|2016-10-25|Chengdu Youyang Electromechanical Product Design Co., Ltd.|Wheel hub, wheel hub motor wheel, and electric vehicle|
    US20160221386A1|2015-01-29|2016-08-04|Silverstone, Inc.|Wheel|
    US9925827B2|2015-03-27|2018-03-27|Goodrich Corporation|Aircraft wheel release channel|
    US10144245B2|2015-11-12|2018-12-04|Goodrich Corporation|Oval O-ring groove for aircraft wheels|
    CN105329043A|2015-12-04|2016-02-17|张振寰|Wheel and manufacturing method thereof|
    CN105365482A|2015-12-04|2016-03-02|张振寰|Wheel and manufacturing method thereof|
    FR3051142B1|2016-05-11|2018-05-25|Safran Landing Systems|AIRCRAFT WHEEL|
    CN107963203B|2017-11-16|2021-01-01|西安航空制动科技有限公司|Combined aircraft wheel with wide hub core of aircraft tire|
    FR3083271B1|2018-06-27|2020-09-04|Safran Landing Systems|CONTROL PROCEDURE FOR A THREE-POSITION DRAWER DISPENSER|
    CN110525121A|2019-09-12|2019-12-03|王万其|A kind of spliced wheel rim of vacuum tyre|
    法律状态:
    2015-03-19| PLFP| Fee payment|Year of fee payment: 2 |
    2016-03-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-03-22| PLFP| Fee payment|Year of fee payment: 4 |
    2017-06-23| CD| Change of name or company name|Owner name: MESSIER-BUGATTI-DOWTY, FR Effective date: 20170518 |
    2018-03-23| PLFP| Fee payment|Year of fee payment: 5 |
    2020-02-20| PLFP| Fee payment|Year of fee payment: 7 |
    2021-02-18| PLFP| Fee payment|Year of fee payment: 8 |
    2022-02-21| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1452738A|FR3019144B1|2014-03-28|2014-03-28|AIRCRAFT WHEEL HAVING A CHANNEL ORGANIZING A LEAKAGE PATH IN THE WHEEL|FR1452738A| FR3019144B1|2014-03-28|2014-03-28|AIRCRAFT WHEEL HAVING A CHANNEL ORGANIZING A LEAKAGE PATH IN THE WHEEL|
    EP15157235.1A| EP2923858B1|2014-03-28|2015-03-02|Aircraft wheel comprising a duct establishing a leakage path in the wheel|
    US14/640,278| US9630448B2|2014-03-28|2015-03-06|Aircraft wheel comprising a duct establishing a leakage path in the wheel|
    CN201710729723.9A| CN107685593B|2014-03-28|2015-03-23|Aircraft wheel comprising a duct establishing a leak path in the wheel|
    CN201510127776.4A| CN104943471B|2014-03-28|2015-03-23|Including the aircraft wheel for the pipeline for setting up wheel internal leakage path|
    US15/399,185| US9855792B2|2014-03-28|2017-01-05|Aircraft wheel comprising a duct establishing a leakage path in the wheel|
    [返回顶部]