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JP4434704B2 - Device for supplying pressurized air to wheel tires of automobiles via wheel hubs - Google Patents

Device for supplying pressurized air to wheel tires of automobiles via wheel hubs Download PDF

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Publication number
JP4434704B2
JP4434704B2 JP2003397096A JP2003397096A JP4434704B2 JP 4434704 B2 JP4434704 B2 JP 4434704B2 JP 2003397096 A JP2003397096 A JP 2003397096A JP 2003397096 A JP2003397096 A JP 2003397096A JP 4434704 B2 JP4434704 B2 JP 4434704B2
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pressurized air
passage
ring
race
bearing
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JP2005155825A (en
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シモナ，ピロネ
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SKF Industrie SpA
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SKF Industrie SpA
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    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/005—Fluid passages not relating to lubrication or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00345—Details of the rotational joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/003—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving comprising rotational joints between vehicle-mounted pressure sources and the tyres
    • B60C23/00363—Details of sealings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rolling Contact Bearings (AREA)

Description

この発明は、車輪ハブを介して自動車の車輪のタイヤへ加圧された空気を供給する別付けの装置に関する。さらに、この発明は、前記別付けの装置を取り付けた自動車の車輪のハブのベアリングアッセンブリーに関するものである。 The present invention relates to a separate device for supplying pressurized air to a wheel tire of an automobile via a wheel hub. Furthermore, the present invention relates to a bearing assembly for a vehicle wheel hub to which the above-mentioned attachment device is attached.

特別のベント及び封止装置が設けられていて、自動車に搭載の加圧空気供給源によりタイヤへ空気を吹き込むようになっている自動車車輪のハブのためのベアリングユニットは、既に知られている。このような機構においては、タイタの空気圧が調整され、モニターできるようになっている。   Bearing units for automobile wheel hubs, which are provided with special vents and sealing devices and are adapted to blow air into the tire by means of a pressurized air supply mounted on the automobile, are already known. In such a mechanism, the air pressure of the titer is adjusted and can be monitored.

従来技術の前記ベアリングユニットは、例えば、ヨーロッパ特許７１３，０２１、ヨーロッパ特許６５６，２６７、米国特許５，５０３，４８０、ドイツ特許３，７３８，５２９、フランス特許２，７１４，９４３に記載されている。   The prior art bearing units are described, for example, in European Patent 713,021, European Patent 656,267, US Pat. No. 5,503,480, German Patent 3,738,529, French Patent 2,714,943. .

図１は、従来例のベアリングユニットを示すもので、ベアリングユニットは、アウターレース１０１、インナーレース１０２及び二組のベアリングボール１０３，１０３を備え、前記インナーレースは、二つの軸方向に隣り合う別体のハーフレースにより構成されているか、又は、一体構成の一つのもので構成されているものであり、前記ボール１０３，１０３は、アウターレース１０１とインナーレース１０２との間に介在している。二組のボール１０３，１０３の間においては、アウターレース１０１を貫通する複数の外側通路１０６が放射状に設けられており、さらに、これらの通路に対応して複数の内側通路１０７がインナーレース１０２を貫通するように設けられている。 FIG. 1 shows a conventional bearing unit. The bearing unit includes an outer race 101 , an inner race 102, and two sets of bearing balls 103 , 103, which are adjacent to each other in two axial directions. The body 103 is composed of a half-race of the body, or is composed of a single body, and the balls 103 , 103 are interposed between the outer race 101 and the inner race 102 . Between the two sets of balls 103 and 103 , a plurality of outer passages 106 that penetrate the outer race 101 are provided radially, and a plurality of inner passages 107 corresponding to these passages connect the inner race 102 . It is provided to penetrate.

アウターレース１０１、インナーレース１０２及び二組のボール１０３，１０３の間に区画された中間の空間には、加圧空気が内部を流れる封止装置が配置されていて、外側通路１０６からの加圧空気は、封止装置１０８の内部を抜けて内側通路１０７へ流れ、その間前記封止装置により加圧空気が外部へ流出しないように封止されている。封止装置１０８は、中間のチャンバ１１４を囲む環状の二組の封止部材（隔膜部材）１０９と、該封止部材を支持してアウターレース１０１の内側面に適宜の手段（溶接、ボルト止めなど）により取り付けられる図１に示すような断面冂形状の金属などの環状部材１１０とからなり、アウターレース１０１の通路１０６に正対する位置に該通路に対応する開口が設けられており、前記環状部材の対面する両側面外側にそって封止部材１０９（ゴム、合成ゴム、補強繊維布などの耐摩擦性、円滑な滑り特性をもつもの）が取り付けられており、該封止部材１０９は、足部１１２が二股になって回転するインナーレース１０２の外面１１５に接触し、摺動するように構成されている。また、前記摺動面１１５には、滑りを良くするためにテフロン（登録商標）加工等が施されている。前記中間のチャンバ１１４の内部は、前記インナーレース１０２に確保された内側通路１０７と連通し合って、加圧空気が上流の外側通路１０６から下流の内側通路１０７へと流れるようになっている。タイヤの空気圧が不足することがセンサにより自動的に又は運転者によるメータなどにより確認された場合には、自動制御システム又は運転者の手動制御により、自動車に搭載の加圧空気供給源から加圧空気が車輪のサスペンション柱脚に設けられた特別のダクトを経て外側通路１０６に流入し、中間のチャンバ１１４を通り、内側通路１０７に達し、そこから別の通路（複数）を介して車輪のリムへ流れこみ、最終的にタイヤへ流入し、タイヤ空気圧を正規のものにする。 In an intermediate space defined between the outer race 101 , the inner race 102, and the two sets of balls 103 , 103, a sealing device through which pressurized air flows is disposed so as to pressurize from the outer passage 106. Air passes through the inside of the sealing device 108 and flows into the inner passage 107 , and during that time, the sealing device is sealed so that pressurized air does not flow out. The sealing device 108 includes two sets of annular sealing members (diaphragm members) 109 surrounding the intermediate chamber 114 , and appropriate means (welding, bolting) on the inner surface of the outer race 101 supporting the sealing members. 1) and an annular member 110 made of metal having a cross-sectional shape as shown in FIG. 1, and an opening corresponding to the passage is provided at a position facing the passage 106 of the outer race 101. facing sealing member 109 along the sides outside of the member (rubber, synthetic rubber, abrasion resistance, such as a reinforcing fiber cloth, one with a smooth sliding property) is attached sealing member 109, The foot 112 is configured to come into contact with and slide on the outer surface 115 of the inner race 102 rotating in a bifurcated manner. The sliding surface 115 is subjected to Teflon (registered trademark) processing or the like in order to improve sliding. Interior of the intermediate chamber 114, said each other communicates with the inner passage 107 that is secured to the inner race 102, pressurized air is allowed to flow from the upstream of the outer passage 106 to the downstream of the inner passage 107. When it is confirmed by the sensor that the tire pressure is insufficient or by the driver's meter, etc., it is pressurized from the pressurized air supply source installed in the vehicle by the automatic control system or the driver's manual control. Air flows into the outer passage 106 via a special duct provided in the suspension column base of the wheel, passes through the intermediate chamber 114 , reaches the inner passage 107 , and from there through another passage (s) to the wheel rim. And finally flows into the tire to normalize the tire pressure.

前記した従来例では、ベアリングユニットのアウターレースとインナーレースに加圧空気が通る通路を設けるようになっているが、このような通路をアウターレースとインナーレースそれぞれに設けることは、技術的に複雑になり、許容誤差がきびしく、精度を必要とするベアリングレースのレースウエイに悪影響を与えるおそれがあり、さらに、アウターレースとインナーレースの間に設けられた加圧空気を通す封止装置が比較的損傷しやすく、長期にわたり使用に耐えない問題点があり、これらが、この発明の解決課題である。   In the conventional example described above, a passage through which pressurized air passes through the outer race and the inner race of the bearing unit is provided. However, it is technically complicated to provide such a passage in each of the outer race and the inner race. The tolerance is severe and the raceway of the bearing race that requires precision may be adversely affected. In addition, the sealing device that allows pressurized air to pass between the outer race and the inner race is relatively There are problems that are easily damaged and cannot be used for a long time, and these are the problems to be solved by the present invention.

前記課題を解決するため、この発明は、アウターレースとインナーレースそれぞれに加圧空気の通路を設けず、別体の部材に前記通路を設け、該部材をアウターレースとインナーレースとに合体させて、前記課題を解決しようとするものである。   In order to solve the above-mentioned problems, the present invention does not provide a passage for pressurized air in each of the outer race and the inner race, but provides the passage in a separate member, and combines the member into the outer race and the inner race. The present invention intends to solve the above problems.

この発明の実施の態様を図により説明する。
図２に示す第１の実施の態様においては、自動車の車輪のハブにおけるベアリングユニットＡは、固定のアウターレース１、インナーレースを構成する一対の軸方向に整列のインナー・ハーフレース２，３及びアウターレース１とインナー・ハーフレース２，３との間に介在する回転ボール４，５を含む。 Embodiments of the present invention will be described with reference to the drawings.
In the first embodiment shown in FIG. 2, the bearing unit A in the wheel hub of the automobile includes a fixed outer race 1, a pair of axially aligned inner half races 2, 3, and an inner race. Rotating balls 4 and 5 interposed between the outer race 1 and the inner half races 2 and 3 are included.

図２に図示のベアリングユニットの構造の大部分は、前記図１に示した従来構造を踏襲しているものであるから、従来構造に含まれる構造部分についての説明は、これを省略する。   Since most of the structure of the bearing unit shown in FIG. 2 follows the conventional structure shown in FIG. 1, the description of the structural part included in the conventional structure is omitted.

図２における実施の態様においては、固定のアウターレース１の軸方向の一方の端面の円周縁に凹部６が形成されている。このようなアウターレース１の円周縁に凹部６をもつベアリングは、図４に示す構造のものが既に知られており、該凹部に環状のカバー１０７が取り付けられ、このカバーにセンサ１０８が取り付けられ、該センサは、ベアリングの回転するインナーレースの一方と共に高速回転するインパルスリング１０９に対面している。カバー１０７は、外周縁部１１０を有し、これが前記凹部に嵌合するようになっている。 In the embodiment in FIG. 2, a recess 6 is formed on the circumferential edge of one end face in the axial direction of the fixed outer race 1. Such a bearing having a recess 6 on the circumferential edge of the outer race 1 is already known in the structure shown in FIG. 4, and an annular cover 107 is attached to the recess, and a sensor 108 is attached to the cover. The sensor faces the impulse ring 109 that rotates at a high speed together with one of the inner races in which the bearing rotates. The cover 107 has an outer peripheral edge portion 110 which is fitted into the recess.

図２に示す、この発明の実施の態様においては、ベアリングユニットＡと別付けの装置Ｂとが軸方向にそって合体しているもので、別付けの装置Ｂによって加圧された空気がベアリングのインナーレースを構成するインナー・ハーフレース２，３に取り付けられたハブ（図示せず）を経て車輪のタイヤへ供給される。 In the embodiment of the present invention shown in FIG. 2, the bearing unit A and the separate device B are united along the axial direction, and the air pressurized by the separate device B is the bearing. It is supplied to the tire of the wheel through a hub (not shown) attached to the inner half races 2 and 3 constituting the inner race.

前記別付けの装置Ｂは、固定のアウターリング１１と回転可能なインナーリング１２とを備えている。中央の放射方向の面Ｐには、アウターリング１１を貫通する通路１３が設けられており、一つ又は複数の通路１４がインナーリング１２に貫通されている。前記通路１３は、アウターリング１１の外周側面２０と内周側面１１ａとの間にわたって設けられ、通路１４は、インナーリング１２の外周側面１２ａと内周側面１２ｂとにわたって設けられている。   The separate apparatus B includes a fixed outer ring 11 and a rotatable inner ring 12. The central radial plane P is provided with a passage 13 that penetrates the outer ring 11, and one or more passages 14 penetrate the inner ring 12. The passage 13 is provided between the outer peripheral side surface 20 and the inner peripheral side surface 11 a of the outer ring 11, and the passage 14 is provided between the outer peripheral side surface 12 a and the inner peripheral side surface 12 b of the inner ring 12.

アウターリング１１とインナーリング１２との間の環状の空間には、封止装置が介在し、この封止装置の内部空間を経て前記通路１３から通路１４へ加圧された空気が流れるように構成されている。この封止装置は、環状の封止隔膜部１５，１６を備え、これら封止隔膜部は、前記アウターリング１１の内側面に取り付けられ、前記インナーリング１２の外側面に接して、前記インナーリングが回転すると前記インナーリング１２の外側面は前記封止隔膜部の自由足部に接しながら摺動するものであり、したがって、前記封止隔膜部は、ゴム、合成ゴム、補強された繊維布などのフレキシブルで耐久性に富む素材から構成され、前記自由足部の摺動面インナーリング１２に対する面）には、テフロン（登録商標）加工などの滑りやすくする加工が施されている。そして、前記封止隔膜部の間に前記通路１３，１４が位置し、上流の通路１３からの加圧された空気は、前記封止隔膜部の間の空間１７を抜けて下流の通路１４へ流れるようになる。   A sealing device is interposed in the annular space between the outer ring 11 and the inner ring 12, and the pressurized air flows from the passage 13 to the passage 14 through the internal space of the sealing device. Has been. The sealing device includes annular sealing diaphragm portions 15 and 16, which are attached to the inner surface of the outer ring 11 and are in contact with the outer surface of the inner ring 12, so that the inner ring Is rotated, the outer surface of the inner ring 12 slides in contact with the free foot portion of the sealing diaphragm portion. Therefore, the sealing diaphragm portion is made of rubber, synthetic rubber, reinforced fiber cloth, or the like. The surface of the free foot portion with respect to the sliding surface inner ring 12) is made to be slippery, such as Teflon (registered trademark) processing. Then, the passages 13 and 14 are located between the sealing diaphragm portions, and the pressurized air from the upstream passage 13 passes through the space 17 between the sealing diaphragm portions to the downstream passage 14. It begins to flow.

前記封止隔膜部の詳細な構造は、すでに公知のものであるから、詳しくは説明しない。必要とあれば、米国特許５，２２１，３８１、欧州特許５２１，７１９、米国特許５，０８０，１５６、ドイツ特許２，２２３，２０７、米国特許４，８４４，１３８、欧州特許２０８，５４０を参照されたい。 Since the detailed structure of the sealing diaphragm is already known, it will not be described in detail. If necessary, the United States patent 5,221,381, European Patent 521,719, US Patent 5,080,156, German Patent 2,223,207, US Patent 4,844,138, European see Patent 208,540 I want to be .

別付けの装置Ｂのアウターリング１１をベアリングユニットＡのアウターレース１に取り付けるために、従来構造と同様にアウターリング１１の周縁部１８の内側に段落部を設け、前記ベアリングのアウターレース１の周縁部に設けた凹部６に合致させて嵌合すればよい。   In order to attach the outer ring 11 of the separate device B to the outer race 1 of the bearing unit A, a paragraph portion is provided inside the peripheral portion 18 of the outer ring 11 as in the conventional structure, and the peripheral edge of the outer race 1 of the bearing is provided. What is necessary is just to match and fit the recessed part 6 provided in the part.

組み付けられた状態においては、装置Ｂのアウターリング１１は、嵌合したアウターレース１と共に動かず、別付けの装置Ｂのインナーリング１２がベアリングユニットＡのインナーレース２，３と共に高速回転できるようになっている。 In the assembled state, outer ring 11 of the device B, not move with the outer race 1 fitted, as an inner ring 12 of another with the device B can be high-speed rotation with the inner race 2 of the bearing unit A It has become.

図２の実施の態様においては、アウターリング１１の通路１３は、放射状に設けられ、外側開口が前記リング１１の外周側面２０に設けられており、この開口を介して例えば前記ベアリングを内蔵するサスペンションの柱脚（スタンダード）（図示せず）に設けられた通路に連通し、この通路から加圧された空気が前記開口を経て通路１３に流れ込むようになっている。   In the embodiment of FIG. 2, the passages 13 of the outer ring 11 are provided radially, and the outer opening is provided on the outer peripheral side surface 20 of the ring 11. For example, the suspension incorporating the bearing is provided through this opening. The cylinder base (standard) (not shown) communicates with a passage provided therein, and pressurized air flows from this passage into the passage 13 through the opening.

図３の第２の実施の態様においては、固定のアウターリング１１に設けられる加圧空気取り入れのための通路は、前記リング１１の側面２１に開口するエルボウの通路１１３として設けられ、例えば、サスペンションの柱脚とは別の通路又は導管を接続し、加圧された空気が通路１１３へ流れ込むように構成されている。   In the second embodiment of FIG. 3, the passage for taking in pressurized air provided in the fixed outer ring 11 is provided as an elbow passage 113 opening in the side surface 21 of the ring 11. A passage or conduit other than the column base is connected, and pressurized air flows into the passage 113.

図５の第３の実施の態様においては、ベアリングユニットＡに取り付けられた別付けの装置Ｂに装置Ｃが軸方向に取り付けられているもので、この装置Ｃは、前記ベアリングレース間の相対回転速度を検知するためのものである。この装置Ｃ自体は、すでに公知のものであって、カバー部材７を備え、このカバー部材がセンサ８を支持し、装置Ｂの回転可能なインナーリング１２と共に回転するよう取り付けられたインパルスリング９と対面している。カバー部材７は、軸方向に突き出た縁部１０がアウターリング１１の周縁部の段落部２２に嵌合して、アウターリング１１に取り付けられる。   In the third embodiment of FIG. 5, a device C is attached in an axial direction to a separate device B attached to the bearing unit A, and this device C is used for relative rotation between the bearing races. It is for detecting the speed. The device C itself is already known and comprises a cover member 7 which supports the sensor 8 and is attached to rotate with the rotatable inner ring 12 of the device B; Face to face. The cover member 7 is attached to the outer ring 11 with the edge portion 10 protruding in the axial direction fitting into the paragraph portion 22 at the peripheral edge of the outer ring 11.

図６の第４の実施の態様においては、装置Ｂのアウターリング１１に設けられたエルボウ形状の通路１１３に対し、センサをもつカバー部材７に貫通孔２３を軸方向に設け、通路１１３と貫通孔２３とを連通させたものであり、貫通孔２３から通路１１３を経て加圧された空気が流れるようになっている。 In the fourth embodiment of FIG. 6, a through hole 23 is provided in the cover member 7 having a sensor in the axial direction with respect to the elbow-shaped passage 113 provided in the outer ring 11 of the device B, and the passage 113 and the passage 113 are penetrated. The hole 23 communicates with the air, and pressurized air flows from the through hole 23 through the passage 113.

図７，８，９，１０に示した別の実施の態様においては、アウターレース１の一方の外周側縁部に肩部２４が設けられていて、この肩部にサスペンション柱脚（サスペンション・スタンダード）Ｍの内側側面が当接し、さらに、アウターレース１の他方の外周側縁部に肩部２５が設けられていて、この肩部にサスペンション柱脚（サスペンション・スタンダード）Ｍの外側側面が当接するようになっており、これら肩部は、冷間鍛造加工により成形されたものであり、これら肩部によって、ベアリングユニットＡをサスペンション柱脚（サスペンション・スタンダード）Ｍに固定するようにしたものである。そして、別付けの装置Ｂのアウターリング１１の突部１８は、ベアリングユニットＡのアウターレース１の肩部２４に嵌合する。図７においては、通路１３は、放射状になっているが、図８の通路１１３は、エルボウ形状になっている。図９と図１０の実施の態様にあっては、回転速度を測定する装置Ｃをもつもので、その他の点は、それぞれ図７と図８と同様になっている。 In another embodiment shown in FIGS. 7, 8, 9, and 10, a shoulder portion 24 is provided on one outer peripheral edge of the outer race 1, and a suspension column base (suspension standard) is provided on the shoulder portion. ) The inner side surface of M abuts, and a shoulder portion 25 is provided on the other outer peripheral edge of the outer race 1, and the outer side surface of the suspension column base (suspension standard) M abuts on this shoulder portion. These shoulder portions are formed by cold forging, and the bearing unit A is fixed to the suspension column base (suspension standard) M by these shoulder portions. . Then, the protrusion 18 of the outer ring 11 of the separate device B is fitted to the shoulder 24 of the outer race 1 of the bearing unit A. In FIG. 7, the passage 13 has a radial shape, but the passage 113 in FIG. 8 has an elbow shape. The embodiment shown in FIGS. 9 and 10 has the device C for measuring the rotational speed , and the other points are the same as those in FIGS. 7 and 8, respectively.

この発明によれば、ベアリングユニットのアウターレースとインナーレースには、加圧された空気通路を設けず別個のアウターリングとインナーリングとに加圧された空気通路を設け、アウターレースとインナーレースに通路を設ける加工上の複雑さをなくし、アウターレースとインナーレースの精度を保つようにしたものである。     According to the present invention, the outer race and the inner race of the bearing unit are not provided with a pressurized air passage, but are provided with a pressurized air passage in the separate outer ring and the inner ring. It eliminates the processing complexity of providing a passage and maintains the accuracy of the outer race and inner race.

以上、この発明を図示の実施の態様において説明したが、この発明は、前記した実施の態様のみに限定されるものではなく、種々の変形も可能であり、技術的範囲は、特許請求の範囲に記載のものにより解釈されるべきものである。     Although the present invention has been described in the illustrated embodiment, the present invention is not limited to the above-described embodiment, and various modifications are possible. The technical scope of the present invention is as follows. Should be construed according to what is described in.

自動車のタイヤへ加圧空気を供給する加圧空気供給源を搭載した自動車の車輪のハブに使用するベアリングユニットの従来例の軸方向断面図。The axial sectional view of the conventional example of the bearing unit used for the hub of the wheel of a car carrying the pressurized air supply source which supplies pressurized air to the tire of a car. この発明の第１の実施の態様を示すベアリングユニットの軸方向断面図。1 is an axial sectional view of a bearing unit showing a first embodiment of the present invention. この発明の第２の実施の態様におけるベアリングアッセンブリーの断面図。Sectional drawing of the bearing assembly in the 2nd embodiment of this invention. ベアリングアッセンブリーのベアリングレース間の回転速度を検知する別付けの装置を備えた従来例の断面図。Sectional drawing of the prior art example provided with the separate apparatus which detects the rotational speed between the bearing races of a bearing assembly. この発明の第３の実施の態様の断面図。Sectional drawing of the 3rd Embodiment of this invention. この発明の第４の実施の態様におけるベアリングアッセンブリーの軸方向断面図。The axial sectional view of the bearing assembly in the 4th embodiment of this invention. この発明の第５の実施の態様におけるベアリングアッセンブリーの一部の軸方向断面図。The axial sectional view of a part of the bearing assembly in the fifth embodiment of the present invention. この発明の第５の実施の態様におけるベアリングアッセンブリーの軸方向断面図。The axial sectional view of the bearing assembly in the 5th embodiment of this invention. この発明の第６の実施の態様におけるベアリングアッセンブリーの軸方向断面図。The axial sectional view of the bearing assembly in the 6th embodiment of this invention. この発明の第７の実施の態様におけるベアリングアッセンブリーの軸方向断面図。The axial sectional view of the bearing assembly in the 7th embodiment of this invention.

符号の説明Explanation of symbols

Ａ ベアリングユニット
Ｂ 別付けの装置
１ アウターレース
２，３ インナーレース
１１ 第１のリング
１２ 第２のリング
１３，１１３ 第１の加圧空気の通路
１４ 第２の加圧空気の通路
１５，１６ 封止隔膜部 A Bearing unit B Separately attached device 1 Outer race 2, 3 Inner race 11 First ring 12 Second ring 13, 113 First pressurized air passage 14 Second pressurized air passage 15, 16 Sealing Diaphragm

Claims (1)

固定のアウターレース（１）、回転するインナー・ハーフレース（２、３）および回転ボール（４、５）を備えるベアリングユニットＡ；
固定のアウターリング（１１）の側面（２１）に開口しているエルボウ形状の一つ以上の第１の加圧空気の通路（１１３）、封止隔膜部（１５、１６）の間の空間（１７）、回転するインナーリング（１２）に貫通している一つ以上の第２の加圧空気の通路（１４）および前記回転するインナーリング（１２）に取り付けられるインパルスリング（９）を備え、前記ベアリングユニットＡ取り付けられる別付け装置Ｂ；そして
カバー部材（７）により支持され前記インパルスリング（９）に対面し前記別付け装置（Ｂ）の前記回転するインナーリング（１２）の回転速度を検出する回転センサ（８）および前記第１の加圧空気の通路（１１３）と連通する一つ以上の空気の貫通孔（２３）を有する前記カバー部材（７）を備え、前記別付け装置（Ｂ）の前記固定のアウターリング（１１）に取り付けられる検知装置Ｃ；
から構成され、加圧空気が前記空気の貫通孔（２３）、前記第１の加圧空気の通路（１１３）、前記封止隔膜部の間の空間（１７）および前記第２の加圧空気の通路（１４）を抜けて自動車の車輪のハブを経てタイヤへ空気を供給するためのベアリングアッセンブリー。 Bearing unit A comprising a fixed outer race (1), rotating inner half races (2, 3) and rotating balls (4, 5);
The space between the elbow-shaped one or more first pressurized air passages (113) opening in the side surface (21) of the fixed outer ring (11) and the sealing diaphragms (15, 16) ( 17) comprises one or more second pressurized air passages (14) penetrating the rotating inner ring (12) and an impulse ring (9) attached to the rotating inner ring (12); An attachment device B to which the bearing unit A is attached; and
A rotation sensor (8) that is supported by a cover member (7), faces the impulse ring (9) and detects the rotational speed of the rotating inner ring (12) of the attachment device (B), and the first additional sensor. The cover member (7) having one or more air through holes (23) communicating with the compressed air passage (113) is attached to the fixed outer ring (11) of the attachment device (B). Sensing device C;
The pressurized air is composed of the air through hole (23), the first pressurized air passage (113), the space (17) between the sealing diaphragms, and the second pressurized air. Bearing assembly for supplying air to the tires through the vehicle's wheel hub through the passage (14) .
JP2003397096A 2003-11-27 2003-11-27 Device for supplying pressurized air to wheel tires of automobiles via wheel hubs Expired - Fee Related JP4434704B2 (en)

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JP2003397096A JP4434704B2 (en) 2003-11-27 2003-11-27 Device for supplying pressurized air to wheel tires of automobiles via wheel hubs

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JP4434704B2 true JP4434704B2 (en) 2010-03-17

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