JP5713228B2 - Vehicle wheel hub - Google Patents

Vehicle wheel hub Download PDF

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JP5713228B2
JP5713228B2 JP2010148479A JP2010148479A JP5713228B2 JP 5713228 B2 JP5713228 B2 JP 5713228B2 JP 2010148479 A JP2010148479 A JP 2010148479A JP 2010148479 A JP2010148479 A JP 2010148479A JP 5713228 B2 JP5713228 B2 JP 5713228B2
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annular member
ring
inner ring
width direction
vehicle width
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JP2012011840A (en
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輝知 永井
輝知 永井
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Isuzu Motors Ltd
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Description

本発明は、ホイールが装着される車両のホイールハブに関する。   The present invention relates to a wheel hub of a vehicle to which a wheel is mounted.

ホイールがホイールハブに装着された状態で、ホイールの軸孔の内周面に近接又は接触するホイールハブの嵌合面（ボア部やインロー部などの外面）に錆が発生すると、タイヤ交換などのホイールの脱着時にホイールの軸孔とハブの嵌合面とが固着し、ホイールの取り外しに過大な力を要する。   When the wheel is fitted to the wheel hub and rust occurs on the wheel hub fitting surface (outer surface such as bore or spigot) close to or in contact with the inner peripheral surface of the wheel shaft hole, tire replacement, etc. When the wheel is detached, the wheel shaft hole and the fitting surface of the hub adhere to each other, and an excessive force is required to remove the wheel.

このような不都合を解消するため、特開平１０−８１１０３号公報には、ホイールハブの嵌合面に、耐腐食性に優れた部材からなりかつホイールの軸孔に接する案内環を結合した構造が記載されている。   In order to eliminate such inconvenience, Japanese Patent Laid-Open No. 10-81103 discloses a structure in which a guide ring made of a member having excellent corrosion resistance and in contact with a wheel shaft hole is coupled to a fitting surface of a wheel hub. Have been described.

また、特開２００３−２３７３０１号公報には、ホイールハブの嵌合面に環状の弾性体を固定し、この弾性体にホイールの軸孔の内周面を接触させる構造が記載されている。   Japanese Patent Application Laid-Open No. 2003-237301 describes a structure in which an annular elastic body is fixed to a fitting surface of a wheel hub and an inner peripheral surface of a wheel shaft hole is brought into contact with the elastic body.

特開平１０−８１１０３号公報JP-A-10-81103 特開２００３−２３７３０１号公報JP 2003-237301 A

しかし、特開平１０−８１１０３号公報に記載された構造では、耐腐食性に優れた特別な部材を使用するため、コストの上昇を招く。   However, in the structure described in Japanese Patent Laid-Open No. 10-81103, a special member having excellent corrosion resistance is used, resulting in an increase in cost.

また、特開２００３−２３７３０１号公報に記載された構造では、弾性体の変形によってホイールとホイールハブの回転中心がずれてしまい、車両振動を招く恐れがある。   Moreover, in the structure described in Unexamined-Japanese-Patent No. 2003-237301, the rotation center of a wheel and a wheel hub may shift | deviate by deformation | transformation of an elastic body, and there exists a possibility of causing a vehicle vibration.

本発明は、上記実状に鑑みてなされたものであって、コストの上昇及びホイールとホイールハブの回転中心のずれの発生を抑制しつつ、ホイールの取り外し作業性の向上を図ることが可能なホイールハブの提供を目的とする。   The present invention has been made in view of the above circumstances, and a wheel capable of improving the workability of removing a wheel while suppressing an increase in cost and occurrence of a shift between the rotation center of the wheel and the wheel hub. The purpose is to provide a hub.

本発明のホイールハブは、ハブ本体と環状部材とを備える。ハブ本体は、車軸に支持されるハブ軸部と、ハブ軸部の回転軸の周囲に配置される環状部材締結部とを一体的に備える。環状部材は、内側リングと内側リングの外側に重なる外側リングとを有する。環状部材締結部は、ハブ軸部の回転軸を中心とした円周面に沿った雄ネジ形状の外面を有する。内側リングの内周面は、環状部材締結部の外面と螺合する雌ネジ形状を有する。 The wheel hub of the present invention includes a hub body and an annular member. The hub main body integrally includes a hub shaft portion supported by the axle and an annular member fastening portion disposed around the rotation shaft of the hub shaft portion. The annular member has an inner ring and an outer ring that overlaps the outer side of the inner ring. The annular member fastening portion has an external surface in the form of a male thread along a circumferential surface around the rotation axis of the hub shaft portion. The inner peripheral surface of the inner ring has a female thread shape that is screwed with the outer surface of the annular member fastening portion.

内側リングの外周面と外側リングの内周面とは、外側リングが外側に重なった内側リングを環状部材締結部に螺合した状態で車幅方向内側に向かって内側リングの内径側へ傾斜するテーパ状に形成されて相互に面接触する。ハブ本体には、外側リングの車幅方向内側の端部が当接して環状部材締結部に対する外側リングの車幅方向内側への移動を規制するフランジ部が設けられる。内側リングの車幅方向外側の端縁には、内側リングの外径側へ突出する突条が形成される。外側リングが外側に重なった内側リングを環状部材締結部に螺合して締結すると、車幅方向内側へ移動する内側リングの突条が外側リングの車幅方向外側の端部を車幅方向内側へ押圧して外側リングの車幅方向内側の端部がフランジ部に当接し、環状部材が環状部材締結部の所定位置に取り付けられる。内側リングが環状部材締結部の上記所定位置よりも車幅方向外側に設定された状態で、内側リングの外側に重なった外側リングをホイールの軸孔に挿入し、内側リングを上記所定位置まで締結することによって、外側リングとホイールの軸孔とが嵌合する。 The outer peripheral surface and the inner peripheral surface of the outer ring of the inner ring, the inclined outer ring toward the inside in the vehicle width direction in a state where the inner ring overlapped outside screwed to the ring-shaped member fastening portion to the inner diameter side of the inner ring They are tapered and are in surface contact with each other. The hub main body is provided with a flange portion that abuts on the inner end in the vehicle width direction of the outer ring and regulates the movement of the outer ring in the vehicle width direction relative to the annular member fastening portion. In the vehicle width direction outside edge of the inner ring, ribs projecting radially outwardly of the inner ring is formed. When the inner ring with the outer ring overlapped on the outside is screwed into the annular member fastening part and fastened, the protrusion of the inner ring that moves inward in the vehicle width direction causes the end of the outer ring in the vehicle width direction outer side to extend in the vehicle width direction. And the end of the outer ring in the vehicle width direction is in contact with the flange portion, and the annular member is attached to a predetermined position of the annular member fastening portion. With the inner ring set outside the predetermined position of the annular member fastening portion in the vehicle width direction, the outer ring overlapping the outer side of the inner ring is inserted into the wheel shaft hole, and the inner ring is tightened to the predetermined position. By doing so, the outer ring and the shaft hole of the wheel are fitted.

上記構成では、環状部材の外周面によってホイールがホイールハブに対して確実にセンタリングされて保持されるので、ホイールとホイールハブの回転中心のずれの発生が抑制される。   In the above configuration, since the wheel is securely centered and held with respect to the wheel hub by the outer peripheral surface of the annular member, occurrence of deviation of the rotation center between the wheel and the wheel hub is suppressed.

ホイールハブからホイールを取り外す場合、ホイールを車幅方向外側へ引っ張る。このとき、環状部材の外周面に錆が発生し、環状部材とホイールハブとが固着していると、ホイールをホイールハブから容易に抜くことができない。   When removing the wheel from the wheel hub, pull the wheel outward in the vehicle width direction. At this time, if rust is generated on the outer peripheral surface of the annular member and the annular member and the wheel hub are fixed, the wheel cannot be easily removed from the wheel hub.

このようなときには、冶具（例えば環状部材と係合する専用冶具）を用いて、環状部材をハブ本体に対して反締結方向へ回転させ、環状部材を車幅方向外側へ移動させる。これにより、ホイールは、環状部材とともに車幅方向外側へ移動し、環状部材が環状部材締結部から外れることによって、ホイールハブから離脱する。ホイールから環状部材を取り外す作業は、ホイールハブからの離脱後に、ハンマー等によってホイールや環状部材を叩く等によって行えばよい。   In such a case, the annular member is rotated in the anti-fastening direction with respect to the hub body using a jig (for example, a dedicated jig that engages with the annular member), and the annular member is moved outward in the vehicle width direction. As a result, the wheel moves outward in the vehicle width direction together with the annular member, and is detached from the wheel hub when the annular member is detached from the annular member fastening portion. The operation of removing the annular member from the wheel may be performed by hitting the wheel or the annular member with a hammer or the like after detachment from the wheel hub.

また、環状部材が内側リングと外側リングとを有しているので、環状部材のうち内側リングをハブ本体に対して反締結方向へ回転させ、内側リングを車幅方向外側へ移動させる。このとき、内側リングと外側リングとが錆によって固着して一体的に回転する場合には、上述のように、内側リングが環状部材締結部から外れることによって、ホイールがホイールハブから離脱する。一方、内側リングと外側リングとが相対回転可能な状態であり、内側リングのみが車幅方向外側へ移動する場合には、内側リングを環状部材締結部から外した後、外側リングとホイールとをホイールハブから取り外せばよい。 Further, since the annular member has an inner ring and an outer ring, an inner ring of the annular member is rotated in the counter-fastening direction relative to the hub body, it moves the inner ring to the outside in the vehicle width direction. At this time, when the inner ring and the outer ring are fixed together by rust and rotate integrally, the wheel is detached from the wheel hub by the inner ring being detached from the annular member fastening portion as described above. On the other hand, when the inner ring and the outer ring are relatively rotatable, and only the inner ring moves outward in the vehicle width direction, the inner ring is removed from the annular member fastening portion, and then the outer ring and the wheel are moved. Remove from the wheel hub.

また、内側環状部材及び外側環状部材は、特別な素材によって形成する必要がないので、コストの上昇を抑制することができる。   Moreover, since it is not necessary to form an inner side annular member and an outer side annular member with a special raw material, the raise of cost can be suppressed.

本発明によれば、コストの上昇及びホイールとホイールハブの回転中心のずれの発生を抑制しつつ、ホイールの取り外し作業性の向上を図ることができる。   According to the present invention, it is possible to improve the detachability of the wheel while suppressing an increase in cost and occurrence of a shift between the rotation center of the wheel and the wheel hub.

第１実施形態のホイールハブを車幅方向外側から視た正面図である。It is the front view which looked at the wheel hub of a 1st embodiment from the vehicle width direction outside. 図１のホイールハブの要部拡大斜視図である。It is a principal part expansion perspective view of the wheel hub of FIG. 図１の内側環状部材及び外側環状部材を示す斜視図である。It is a perspective view which shows the inner side annular member and outer side annular member of FIG. ホイールが装着されたホイールハブを示す図１のIV−IV矢視断面図である。FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 1 showing a wheel hub on which a wheel is mounted. 第２実施形態の環状部材を示す斜視図である。It is a perspective view which shows the annular member of 2nd Embodiment. ホイールが装着された第２実施形態のホイールハブを示す断面図である。It is sectional drawing which shows the wheel hub of 2nd Embodiment with which the wheel was mounted | worn.

以下、本発明の第１実施形態に係るリヤ側のホイールハブについて、図１〜図４を参照して説明する。   Hereinafter, a rear wheel hub according to a first embodiment of the present invention will be described with reference to FIGS.

ホイールハブ１は、ハブ本体１０と環状部材１１とを備える。ハブ本体１０は、筒状のハブ軸部２と、ハブ軸部２から外周方向へ延びる円板状のフランジ部３と、複数のインロー部（環状部材締結部）４とを一体的に備える。   The wheel hub 1 includes a hub body 10 and an annular member 11. The hub body 10 integrally includes a cylindrical hub shaft portion 2, a disk-shaped flange portion 3 extending from the hub shaft portion 2 in the outer peripheral direction, and a plurality of spigot portions (annular member fastening portions) 4.

ハブ軸部２は、リヤ側の車軸（図示省略）に回転自在に支持される。フランジ部３の車幅方向の外面にはアルミニウム製のホイール（内側タイヤのホイール５と外側タイヤのホイール６）が、内面には制動ドラム（図示省略）がそれぞれ重ねられ、これらは複数のボルト及びナット（図示省略）によって締結される。これにより、ホイール５，６と制動ドラムとがフランジ部３を介して結合される。ホイール５，６の周縁には、タイヤ（図示省略）を支持するリム（図示省略）が結合されている。   The hub shaft 2 is rotatably supported by a rear axle (not shown). An aluminum wheel (inner tire wheel 5 and outer tire wheel 6) is stacked on the outer surface of the flange portion 3 in the vehicle width direction, and a braking drum (not shown) is stacked on the inner surface. Fastened with a nut (not shown). As a result, the wheels 5 and 6 and the brake drum are coupled via the flange portion 3. A rim (not shown) for supporting a tire (not shown) is coupled to the peripheral edges of the wheels 5 and 6.

複数のインロー部４は、ハブ軸部２の外周縁よりも外周側で、フランジ部３の外周縁よりも内周側で、且つフランジ部３より車幅方向外側（図４中左側）の領域において、ハブ軸部２（ホイールハブ１）の回転軸の周囲に所定の間隔をおいて飛び石状に配置されている。また、インロー部４の外面４ａは、ハブ軸部２の回転軸を中心とした円周面に沿って断続的に配置されている。   The plurality of spigot portions 4 are on the outer peripheral side of the outer peripheral edge of the hub shaft portion 2, on the inner peripheral side of the outer peripheral edge of the flange portion 3, and on the outer side in the vehicle width direction (left side in FIG. 4). Are arranged in a stepping stone shape at a predetermined interval around the rotation shaft of the hub shaft portion 2 (wheel hub 1). Further, the outer surface 4 a of the spigot part 4 is intermittently disposed along a circumferential surface around the rotation axis of the hub shaft part 2.

環状部材１１の内周面１１ａは、インロー部４の外面４ａが配置される上記円周面とほぼ同径に設定されている。環状部材１１の内周面１１ａは、雌ネジ状に形成され、各インロー部４の外面４ａは、環状部材１１の内周面１１ａと螺合する雄ネジ状に形成されている。環状部材１１の内周面１１ａにインロー部４の外面４ａが螺合するように環状部材１１を回転させることにより、環状部材１１がインロー部４に締結固定される。   The inner peripheral surface 11a of the annular member 11 is set to have substantially the same diameter as the circumferential surface on which the outer surface 4a of the spigot part 4 is disposed. The inner peripheral surface 11 a of the annular member 11 is formed in a female screw shape, and the outer surface 4 a of each spigot part 4 is formed in a male screw shape that is screwed with the inner peripheral surface 11 a of the annular member 11. By rotating the annular member 11 so that the outer surface 4a of the spigot part 4 is screwed to the inner peripheral surface 11a of the annular member 11, the annular member 11 is fastened and fixed to the spigot part 4.

環状部材１１の締結方向前方の端縁には、径方向外側へ突出する板状のリブ１２が一体形成され、ホイールハブ１１のフランジ部３には、リブ１２が収容される凹部１３が形成されている。環状部材１１をインロー部４に締結すると、環状部材１１は車幅方向内側へ移動し、リブ１２が凹部１３に収容されてフランジ部３と当接する。リブ１２とフランジ部３との当接によって、環状部材１１の移動が規制され、環状部材１１がインロー部４の所定位置に取り付けられる。この取付状態で、環状部材１１には、ホイール５，６の軸孔７，８が車幅方向外側から嵌合され、環状部材１１の外周面（嵌合面）１１ｂとホイール５，６の軸孔７，８の内周面７ａ、８ａとが対向する。   A plate-like rib 12 protruding outward in the radial direction is integrally formed at the front edge of the annular member 11 in the fastening direction, and a concave portion 13 in which the rib 12 is accommodated is formed in the flange portion 3 of the wheel hub 11. ing. When the annular member 11 is fastened to the inlay portion 4, the annular member 11 moves inward in the vehicle width direction, and the rib 12 is accommodated in the recess 13 and comes into contact with the flange portion 3. The movement of the annular member 11 is regulated by the contact between the rib 12 and the flange portion 3, and the annular member 11 is attached to a predetermined position of the spigot portion 4. In this mounted state, the shaft members 7 and 8 of the wheels 5 and 6 are fitted into the annular member 11 from the outside in the vehicle width direction, and the outer peripheral surface (fitting surface) 11b of the annular member 11 and the shafts of the wheels 5 and 6 are fitted. The inner peripheral surfaces 7a and 8a of the holes 7 and 8 face each other.

ホイールハブ１に対してホイール５，６を同心に支持するために、環状部材１１の外周面１１ｂとホイール５，６の内周面７ａ，８ａとの隙間は、微小距離（例えば０．２〜０．６ｍｍ程度）に設定され、環状部材１１の外周面１１ｂとホイール５，６の内周面７ａ，８ａとは近接又は接触する。なお、図４には両者が接触した状態が図示されている。   In order to support the wheels 5 and 6 concentrically with respect to the wheel hub 1, a gap between the outer peripheral surface 11 b of the annular member 11 and the inner peripheral surfaces 7 a and 8 a of the wheels 5 and 6 is a minute distance (for example, 0.2 to The outer peripheral surface 11b of the annular member 11 and the inner peripheral surfaces 7a and 8a of the wheels 5 and 6 are close to or in contact with each other. FIG. 4 shows a state where both are in contact with each other.

本実施形態では、環状部材１１の外周面１１ｂによってホイール５，６がホイールハブ１に対して確実にセンタリングされて保持されるので、ホイール５，６とホイールハブ１の回転中心のずれの発生が抑制される。   In the present embodiment, since the wheels 5 and 6 are securely centered and held with respect to the wheel hub 1 by the outer peripheral surface 11b of the annular member 11, the rotation centers of the wheels 5 and 6 and the wheel hub 1 are displaced. It is suppressed.

ホイールハブ１からホイール５，６を取り外す場合、ホイール５，６を車幅方向外側へ引っ張る。このとき、環状部材１１の外周面１１ｂに錆が発生し、環状部材１１とホイールハブ１とが固着していると、ホイール５，６をホイールハブ１から容易に抜くことができない。   When removing the wheels 5 and 6 from the wheel hub 1, the wheels 5 and 6 are pulled outward in the vehicle width direction. At this time, if rust is generated on the outer peripheral surface 11 b of the annular member 11 and the annular member 11 and the wheel hub 1 are fixed, the wheels 5 and 6 cannot be easily removed from the wheel hub 1.

このようなときには、冶具（例えば環状部材と係合する専用冶具）を用いて、環状部材１１をハブ本体１０に対して反締結方向へ回転させ、環状部材１１を車幅方向外側へ移動させる。これにより、ホイール５，６は、環状部材１１とともに車幅方向外側へ移動し、環状部材１１がインロー部４から外れることによって、ホイールハブ１から離脱する。ホイール５，６から環状部材１１を取り外す作業は、ホイールハブ１からの離脱後に、ハンマー等によってホイール５，６や環状部材１１を叩く等によって行えばよい。なお、本実施形態では、環状部材１１にリブ１３が設けられているので、リブ１３によってホイール５，６が車幅方向外側へ押圧されるので、錆による固着力の大きさによらず、ホイール５，６は環状部材１１とともにインロー部４から外れる。   In such a case, the annular member 11 is rotated in the anti-fastening direction with respect to the hub body 10 using a jig (for example, a dedicated jig that engages with the annular member), and the annular member 11 is moved outward in the vehicle width direction. Accordingly, the wheels 5 and 6 move together with the annular member 11 to the outside in the vehicle width direction, and are detached from the wheel hub 1 when the annular member 11 is detached from the spigot portion 4. The operation of removing the annular member 11 from the wheels 5 and 6 may be performed by hitting the wheel 5 or 6 or the annular member 11 with a hammer or the like after detachment from the wheel hub 1. In the present embodiment, since the rib 13 is provided on the annular member 11, the wheels 5 and 6 are pressed outward in the vehicle width direction by the rib 13, so the wheel does not depend on the magnitude of the fixing force due to rust. 5 and 6 are removed from the spigot 4 together with the annular member 11.

従って、ホイール５，６が錆によってホイールハブ１に強固に固着している場合であっても、ホイール５，６をホイールハブ１から取り外すことができる。   Therefore, even if the wheels 5 and 6 are firmly fixed to the wheel hub 1 by rust, the wheels 5 and 6 can be detached from the wheel hub 1.

また、環状部材１１を特殊な材料によって形成する必要がないので、コストの上昇を抑えることができる。   Moreover, since it is not necessary to form the annular member 11 with a special material, an increase in cost can be suppressed.

次に、本発明の第２実施形態を図５及び図６を参照して説明する。なお、本実施形態は、環状部材を内側リング１４と外側リング１５とによって構成したものであり、第１実施形態と共通する構成については、同一の符号を付してその説明を省略する。   Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the annular member is configured by the inner ring 14 and the outer ring 15, and the same reference numerals are given to the components common to the first embodiment, and the description thereof is omitted.

外側リング１５は、拡径及び縮径を許容する切り欠き１６を有し、僅かに拡径された状態で内側リング１４の外側に重ねられる。   The outer ring 15 has a notch 16 that allows diameter expansion and contraction, and is overlapped on the outer side of the inner ring 14 in a slightly expanded state.

内側リング１４の内周面１４ａは、インロー部４の外面４ａが配置される上記円周面とほぼ同径に設定されている。内側リング１４の内周面１４ａは、雌ネジ状に形成され、各インロー部４の外面４ａは、内側リング１４の内周面１４ａと螺合する雄ネジ状に形成されている。内側リング１４の内周面１４ａにインロー部４の外面４ａが螺合するように内側リング１４を回転させることにより、内側リング１４がインロー部４に締結固定される。   The inner peripheral surface 14a of the inner ring 14 is set to have substantially the same diameter as the above-described peripheral surface on which the outer surface 4a of the spigot part 4 is disposed. The inner peripheral surface 14 a of the inner ring 14 is formed in a female screw shape, and the outer surface 4 a of each spigot part 4 is formed in a male screw shape that is screwed with the inner peripheral surface 14 a of the inner ring 14. By rotating the inner ring 14 so that the outer surface 4a of the spigot part 4 is screwed to the inner peripheral surface 14a of the inner ring 14, the inner ring 14 is fastened and fixed to the spigot part 4.

外側リング１５の内径（内周面１５ａの径）は、内側リング１４の外周面１４ｂの外側に重なるように設定されている。内側リング１４の外周面１４ｂと外側リング１５の内周面１５ａとは、内側リング１４がインロー部４に締結固定された状態で車幅方向内側に向かって内側リング１４の内径側へ傾斜するテーパ状に形成されて相互に面接触する。内側リング１４の車幅方向外側の端縁には、内側リング１４の外径側へ突出する突条１７が形成されている。内側リング１４に外側リング１５を重ねた状態で、内側リング１４をインロー部４に締結すると、両者の締結に伴って内側リング１４の突条１７が外側リング１５の車幅方向外側の端部１８を押圧し、両リング１４，１５が一体的に車幅方向内側へ移動する。締結が進むと、外側リング１５の車幅方向内側の端部１９がフランジ部３に当接して両リング１４，１５の移動が規制される。これにより、両リング１４，１５がインロー部４の所定位置に取り付けられる。この取付状態で、外側リング１５には、ホイール５，６の軸孔７，８が車幅方向外側から嵌合され、外側リング１５の外周面（嵌合面）１５ｂとホイール５，６の軸孔７，８の内周面７ａ、８ａとが対向する。

The inner diameter of the outer ring 15 (the diameter of the inner peripheral surface 15a) is set to overlap the outer side of the outer peripheral surface 14b of the inner ring 14. The inner circumferential surface 1 5 a of the outer circumferential surface 14b and the outer ring 15 of the inner ring 14, inclined toward the inside in the vehicle width direction in a state where the inner ring 14 is fastened to the spigot portion 4 to the inner diameter side of the inner ring 14 They are tapered and are in surface contact with each other. On the outer edge of the inner ring 14 in the vehicle width direction, a ridge 17 that protrudes toward the outer diameter side of the inner ring 14 is formed. When the inner ring 14 is fastened to the spigot 4 with the outer ring 15 overlapped with the inner ring 14, the protrusion 17 of the inner ring 14 is connected to the end portion 18 of the outer ring 15 in the vehicle width direction. , And both rings 14 and 15 move inward in the vehicle width direction. When the fastening proceeds, the end portion 19 on the inner side in the vehicle width direction of the outer ring 15 comes into contact with the flange portion 3 to restrict the movement of both the rings 14 and 15. Thereby, both the rings 14 and 15 are attached to the predetermined position of the spigot part 4. In this attached state, the shaft holes 7 and 8 of the wheels 5 and 6 are fitted into the outer ring 15 from the outer side in the vehicle width direction, and the outer peripheral surface (fitting surface) 15b of the outer ring 15 and the shafts of the wheels 5 and 6 are fitted. The inner peripheral surfaces 7a and 8a of the holes 7 and 8 face each other.

本実施形態では、ホイール５，６をホイールハブ１に装着する場合、内側リング１４を上記所定位置まで締め付けずに、上記所定位置よりも車幅方向外側に設定し、外側リング１５を上記所定位置に設定する。この状態で、内側リング１４は外側リング１５に対して車幅方向外側にオフセットしているので、内側リング１４の外周面１４ｂと外側リング１５の内周面１４ａのテーパ形状によって、外側リング１５が上記取付状態よりも縮径した状態となる。従って、ホイール５，６の軸孔７，８に外側リング１５を容易に挿入することができる。   In the present embodiment, when the wheels 5 and 6 are mounted on the wheel hub 1, the inner ring 14 is set to the vehicle width direction outer side than the predetermined position without being tightened to the predetermined position, and the outer ring 15 is set to the predetermined position. Set to. In this state, since the inner ring 14 is offset outward in the vehicle width direction with respect to the outer ring 15, the outer ring 15 is formed by the tapered shape of the outer peripheral surface 14b of the inner ring 14 and the inner peripheral surface 14a of the outer ring 15. It will be in a state where the diameter has been reduced more than the above attachment state. Therefore, the outer ring 15 can be easily inserted into the shaft holes 7 and 8 of the wheels 5 and 6.

軸孔７，８を外側リング１５に挿入し、ホイール５，６を外側リング１５の最奥位置（フランジ部３と接する位置）まで移動させた後、内側リング１４を締結方向に回転させる。これにより、内側リング１４が車幅方向内側へ移動し、上記テーパ形状によって外側リング１５が拡径され、内側リング１４が上記所定位置に達したときに、ホイール５，６の軸孔７，８が外側リング１５に嵌合した状態となる。   The shaft holes 7 and 8 are inserted into the outer ring 15, and the wheels 5 and 6 are moved to the innermost position of the outer ring 15 (a position in contact with the flange portion 3), and then the inner ring 14 is rotated in the fastening direction. As a result, the inner ring 14 moves inward in the vehicle width direction, the outer ring 15 is expanded in diameter by the tapered shape, and when the inner ring 14 reaches the predetermined position, the shaft holes 7, 8 of the wheels 5, 6. Is in a state of being fitted to the outer ring 15.

錆によってホイールハブに固着したホイールを取り外す場合、内側リング１４をハブ本体１０に対して反締結方向へ回転させ、内側リング１４を車幅方向外側へ移動させる。このとき、内側リング１４と外側リング１５とが錆によって固着して一体的に回転する場合には、第１実施形態と同様に、内側リング１４がインロー部４から外れることによって、ホイール５，６がホイールハブ１から離脱する。一方、内側リング１４と外側リング１５とが相対回転可能な状態であり、内側リング１４のみが車幅方向外側へ移動する場合には、内側リング１４をインロー部４から外した後、外側リング１５とホイール５，６とをホイールハブ１から取り外せばよい。また、内側リング１４のみが移動した場合、内側リング１４の外周面１４ｂと外側リング１５の内周面１４ａのテーパ形状によって外側リング１５が縮径可能となるため、内側リング１４をインロー部４から完全に離脱させる前であっても、外側リング１５をホイール５，６とともにホイールハブ１から取り外す際に必要な力が低減され、ホイール５，６をホイールハブ１から外し易くなる。   When removing the wheel fixed to the wheel hub due to rust, the inner ring 14 is rotated in the anti-fastening direction with respect to the hub body 10, and the inner ring 14 is moved outward in the vehicle width direction. At this time, when the inner ring 14 and the outer ring 15 are fixed together by rust and rotate integrally, the inner ring 14 is disengaged from the spigot portion 4 in the same manner as in the first embodiment. Is detached from the wheel hub 1. On the other hand, when the inner ring 14 and the outer ring 15 are relatively rotatable, and only the inner ring 14 moves outward in the vehicle width direction, the outer ring 15 is removed after the inner ring 14 is removed from the spigot 4. And the wheels 5 and 6 may be removed from the wheel hub 1. Further, when only the inner ring 14 moves, the outer ring 15 can be reduced in diameter by the tapered shape of the outer peripheral surface 14b of the inner ring 14 and the inner peripheral surface 14a of the outer ring 15. Even before completely disengaging, the force required to remove the outer ring 15 together with the wheels 5 and 6 from the wheel hub 1 is reduced, and the wheels 5 and 6 can be easily detached from the wheel hub 1.

なお、上記実施形態では、リヤ側のホイールハブ１について説明したが、本発明はフロント側のホイールハブにも適用可能である。また、アルミニウム製のホイール５，６について説明したが、その材質は限定されるのもではなく、例えばアルミニウム製に比べて薄肉である鉄製のホイール５，６（図４中に二点鎖線で示す）であってもよい。また、環状部材締結部として、複数のインロー部９に代えて円筒状のボア部を設けてもよい。   In the above embodiment, the wheel hub 1 on the rear side has been described. However, the present invention can also be applied to a wheel hub on the front side. Moreover, although the aluminum wheels 5 and 6 have been described, the material thereof is not limited. For example, the steel wheels 5 and 6 that are thinner than aluminum wheels (indicated by a two-dot chain line in FIG. 4). ). Further, as the annular member fastening portion, a cylindrical bore portion may be provided instead of the plurality of spigot portions 9.

以上、本発明者によってなされた発明を適用した実施形態について説明したが、この実施形態による本発明の開示の一部をなす論述及び図面により本発明は限定されることはない。すなわち、この実施形態に基づいて当業者等によりなされる他の実施形態、実施例及び運用技術等は全て本発明の範疇に含まれることは勿論であることを付け加えておく。   As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the discussion and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

本発明は、様々な車両のホイールハブに適用可能である。   The present invention is applicable to wheel hubs of various vehicles.

１：ホイールハブ
２：ハブ軸部
３：フランジ部
４：インロー部（環状部材締結部）
４ａ：インロー部の外面
５，６：ホイール
７，８：軸孔
７ａ，８ａ：軸孔の内周面
１０：ハブ本体
１１：環状部材
１１ａ：環状部材の内周面
１１ｂ：環状部材の外周面
１２：リブ
１３：凹部
１４：内側リング
１４ａ：内側リングの内周面
１４ｂ：内側リングの外周面
１５：外側リング
１５ａ：外側リングの内周面
１５ｂ：外側リングの外周面
１６：切り欠き
１７：突条
１８、１９：外側リングの端部 1: Wheel hub 2: Hub shaft portion 3: Flange portion 4: Inlay portion (annular member fastening portion)
4a: outer surface of the spigot part 5, 6: wheel 7, 8: shaft hole 7a, 8a: inner peripheral surface 10: hub body 11: annular member 11a: inner peripheral surface 11b of annular member: outer peripheral surface of annular member 12: Rib 13: Recess 14: Inner ring 14a: Inner ring inner peripheral surface 14b: Inner ring outer peripheral surface 15: Outer ring 15a: Outer ring inner peripheral surface 15b: Outer ring outer peripheral surface 16: Notch 17: Ridges 18, 19: end of outer ring

Claims (1)

車軸に支持されるハブ軸部と該ハブ軸部の回転軸の周囲に配置される環状部材締結部とを一体的に備えたハブ本体と、内側リングと該内側リングの外側に重なる外側リングとを有する環状部材と、を備え、
前記環状部材締結部は、前記ハブ軸部の回転軸を中心とした円周面に沿った雄ネジ形状の外面を有し、
前記内側リングの内周面は、前記環状部材締結部の外面と螺合する雌ネジ形状を有し、
前記内側リングの外周面と前記外側リングの内周面とは、該外側リングが外側に重なった該内側リングを前記環状部材締結部に螺合した状態で車幅方向内側に向かって該内側リングの内径側へ傾斜するテーパ状に形成されて相互に面接触し、
前記ハブ本体には、前記外側リングの車幅方向内側の端部が当接して前記環状部材締結部に対する該外側リングの車幅方向内側への移動を規制するフランジ部が設けられ、
前記内側リングの車幅方向外側の端縁には、該内側リングの外径側へ突出する突条が形成され、
前記外側リングが外側に重なった前記内側リングを前記環状部材締結部に螺合して締結すると、車幅方向内側へ移動する該内側リングの前記突条が該外側リングの車幅方向外側の端部を車幅方向内側へ押圧して該外側リングの車幅方向内側の端部が前記フランジ部に当接し、前記環状部材が該環状部材締結部の所定位置に取り付けられ、
前記内側リングが前記環状部材締結部の前記所定位置よりも車幅方向外側に設定された状態で、該内側リングの外側に重なった前記外側リングをホイールの軸孔に挿入し、該内側リングを前記所定位置まで締結することによって、該外側リングと該ホイールの軸孔とが嵌合する
ことを特徴とする車両のホイールハブ。 A hub body integrally including a hub shaft portion supported by an axle and an annular member fastening portion disposed around a rotation shaft of the hub shaft portion, an inner ring, and an outer ring overlapping the outer side of the inner ring An annular member having
The annular member fastening portion has a male screw-shaped outer surface along a circumferential surface around the rotation axis of the hub shaft portion,
The inner peripheral surface of the inner ring has a female screw shape that is screwed with the outer surface of the annular member fastening portion,
Wherein the inner ring outer peripheral surface and the inner peripheral surface of the outer ring, inner outer ring toward the overlapping inner ring outwardly in the vehicle width direction inside in a state screwed in said ring-shaped member fastening portion It is formed in a tapered shape that inclines toward the inner diameter side of the ring and makes surface contact with each other
The hub body is provided with a flange portion that abuts the inner end in the vehicle width direction of the outer ring and restricts the movement of the outer ring in the vehicle width direction with respect to the annular member fastening portion,
On the outer edge of the inner ring in the vehicle width direction, a protrusion that protrudes toward the outer diameter side of the inner ring is formed,
When the inner ring with the outer ring overlapped on the outside is screwed and fastened to the annular member fastening portion, the protrusion of the inner ring that moves inward in the vehicle width direction is the end of the outer ring in the vehicle width direction outer side. Pressing the portion inward in the vehicle width direction, the end of the outer ring in the vehicle width direction contacts the flange portion, and the annular member is attached to a predetermined position of the annular member fastening portion,
With the inner ring set outside the predetermined position of the annular member fastening portion in the vehicle width direction, the outer ring that overlaps the outer side of the inner ring is inserted into a shaft hole of the wheel, and the inner ring is the predetermined position by fastening to a wheel hub of a vehicle and the shaft hole of said outer ring and said wheel, characterized in that you fitting.
JP2010148479A 2010-06-30 2010-06-30 Vehicle wheel hub Expired - Fee Related JP5713228B2 (en)

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