JP5171243B2 - Mounting hole inspection tool and inspection method - Google Patents

Mounting hole inspection tool and inspection method

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Publication number
JP5171243B2
JP5171243B2 JP2007331954A JP2007331954A JP5171243B2 JP 5171243 B2 JP5171243 B2 JP 5171243B2 JP 2007331954 A JP2007331954 A JP 2007331954A JP 2007331954 A JP2007331954 A JP 2007331954A JP 5171243 B2 JP5171243 B2 JP 5171243B2
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Prior art keywords
nut seat
inspection
inspection tool
mounting hole
shaft portion
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JP2007331954A
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JP2009156598A (en
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祥一郎 矢島
泰幸 浦
博司 佐藤
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Bridgestone Corp
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Bridgestone Corp
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Description

本発明は、ホイールの取付孔の状態検査において、ナット座の摩滅状態検査の他、ボルト孔の変形検査も行える検査具などに関する。   The present invention relates to an inspection tool capable of inspecting deformation of a bolt hole in addition to inspecting a worn state of a nut seat in a state inspection of a mounting hole of a wheel.

図８に示すように、車両のハブ１に取付けられるホイール２のディスク部には、ホイール２をハブ１に取付けるための取付孔３が形成される。ハブ１は車軸の端部に設けられた円盤状のホイール取付部である。ハブ１の表面（車両の外側に位置する面）には、ハブの回転中心を中心とした環状の取付面４が設けられ、この取付面４には車両の外側に延長するボルト５が設けられる。ボルト５は、環状の取付面４の円周に沿った方向に一定の間隔を隔てて複数本設けられる。ホイール２のディスク部には、ホイール２の回転中心を中心とした環状の取付部６が設けられる。この取付部６には複数本のボルト５に対応した複数個の取付孔３が、環状の取付部６の円周に沿った方向に一定の間隔を隔てて設けられる。取付孔３は、ハブ１より突出するように設けられたボルト５を貫通させるボルト孔７と当該ボルト孔７を貫通したボルト５に締結されるナット８のナット座９とを備える。ボルト孔７は、ハブ１の取付面４と接触するホイール２の取付部６の裏面１０とホイール２の取付部６の表面１１とに渡って真っ直ぐに貫通するように形成される。ナット座９は、ボルト孔７における取付部６の表面１１側に形成される。ナット座９の座面１２は、ボルト５に締結されるナット８の一端部面１３が接触する形状に形成される。ナット座９としては、例えば、円錐面状の座面１２を備えた円錐面状座（テーパー座と呼ばれる）、半球面状の座面１２を備えた半球面状座、平面状の座面１２を備えた平面座が知られている。
ホイール２の外周縁を形成するリム部１６にタイヤゴム１４が装着されてタイヤ１５が形成される。このタイヤ１５のホイール２における取付孔３のボルト孔７側からホイール２の取付孔３を貫通するようにハブ１のボルト５が通された後に、当該ボルト５の先端からナット８が取付けられ、ナット８の一端部面１３を取付孔３のナット座９の座面１２に押し付けるようにナット８がボルト５に締結されることによって、ハブ１の取付面４とホイール２の取付部６の裏面１０とが接触した状態に維持されて、ホイール２がハブ１に取付けられる。
車両の走行によって、ホイール２が図９（ａ）に示す状態と図１０（ａ）に示す状態とを繰り返す。即ち、図９（ｂ）や図１０（ｂ）に示すように、ホイール２が点線で示す状態から実線で示す状態への変化を繰り返すことによって、ホイール２の取付部６の裏面１０とハブ１の取付面４との間、ボルト孔７とボルト５との間、ナット座９とナット８との間で、微小な相対往復すべり運動が発生し、ホイール２の取付部６の裏面１０及び取付孔３が摩滅する（フレッティング磨耗と呼ばれる）ことが知られている。
そして、ホイール２の取付部６の裏面１０の摩滅状態を検査するための摩滅量測定用治具が知られている（例えば、特許文献１参照）。
一方、取付孔３のナット座９の摩滅状態を検査する検査具としては、図１１に示すものがある。この検査具２０は、ナット座９の座面１２を形成する反円錐面の反対形状である円錐面２１を備えた円錐体により形成される。
この検査具２０を用いたナット座９の摩滅状態検査方法を図１２を参照して説明する。使用後のホイール２のナット座９の座面１２に検査具２０の円錐面２１を載せるようにして検査具２０をナット座９に設置した場合の検査具２０の底面２２（円錐体の底面）の位置が、未使用のホイール２のナット座９の座面１２に検査具２０の円錐面２１を載せるようにして検査具２０をナット座９に設置した場合の検査具２０の底面２２の位置よりも下方に位置された場合に、ナット座９の座面１２が摩滅していてナット座９の径が拡大していると判定できる。
例えば、未使用のホイール２のナット座９の座面１２に検査具２０の円錐面２１を載せるようにして検査具２０をナット座９に設置した場合の検査具２０の底面２２とホイール２の取付部６の表面１１とが同一平面上に位置するような寸法に形成された検査具２０を用意し、使用後のホイール２のナット座９の座面１２に検査具２０の円錐面２１を載せるようにして検査具２０をナット座９に設置した場合の検査具２０の底面２２の位置が、取付部６の表面１１よりも低位置であるナット座９内に位置した場合に、ナット座９の座面１２が摩滅していてナット座９の径が拡大していると判定できる。
特開２００３−２８７４１６号公報 As shown in FIG. 8, an attachment hole 3 for attaching the wheel 2 to the hub 1 is formed in the disc portion of the wheel 2 attached to the hub 1 of the vehicle. The hub 1 is a disc-shaped wheel mounting portion provided at the end of the axle. On the surface of the hub 1 (surface located outside the vehicle), an annular mounting surface 4 centered on the center of rotation of the hub is provided, and the mounting surface 4 is provided with a bolt 5 extending outside the vehicle. . A plurality of bolts 5 are provided at regular intervals in the direction along the circumference of the annular mounting surface 4. The disc portion of the wheel 2 is provided with an annular mounting portion 6 centering on the rotation center of the wheel 2. A plurality of mounting holes 3 corresponding to the plurality of bolts 5 are provided in the mounting portion 6 at a predetermined interval in a direction along the circumference of the annular mounting portion 6. The mounting hole 3 includes a bolt hole 7 that passes through a bolt 5 provided so as to protrude from the hub 1, and a nut seat 9 of a nut 8 that is fastened to the bolt 5 that passes through the bolt hole 7. The bolt hole 7 is formed so as to penetrate straight through the back surface 10 of the mounting portion 6 of the wheel 2 that contacts the mounting surface 4 of the hub 1 and the surface 11 of the mounting portion 6 of the wheel 2. The nut seat 9 is formed on the surface 11 side of the mounting portion 6 in the bolt hole 7. The seat surface 12 of the nut seat 9 is formed in a shape that comes into contact with one end surface 13 of the nut 8 fastened to the bolt 5. Examples of the nut seat 9 include a conical surface seat (referred to as a taper seat) having a conical seat surface 12, a hemispherical seat having a hemispherical seat surface 12, and a planar seat surface 12. Planar seats are known.
A tire rubber 14 is attached to a rim portion 16 that forms the outer peripheral edge of the wheel 2 to form a tire 15. After the bolt 5 of the hub 1 is passed through the mounting hole 3 of the wheel 2 from the side of the bolt hole 7 of the mounting hole 3 of the wheel 15 of the tire 15, a nut 8 is mounted from the tip of the bolt 5. The nut 8 is fastened to the bolt 5 so that the one end surface 13 of the nut 8 is pressed against the seat surface 12 of the nut seat 9 in the mounting hole 3, whereby the mounting surface 4 of the hub 1 and the back surface of the mounting portion 6 of the wheel 2. The wheel 2 is attached to the hub 1 while being kept in contact with the wheel 10.
As the vehicle travels, the wheel 2 repeats the state shown in FIG. 9A and the state shown in FIG. That is, as shown in FIG. 9B and FIG. 10B, the wheel 2 repeats a change from the state indicated by the dotted line to the state indicated by the solid line, whereby the rear surface 10 of the mounting portion 6 of the wheel 2 and the hub 1 A small relative reciprocating sliding motion occurs between the mounting surface 4 of the wheel 2, the bolt hole 7 and the bolt 5, and the nut seat 9 and the nut 8. It is known that the holes 3 wear (called fretting wear).
And the abrasion amount measuring jig | tool for test | inspecting the abrasion state of the back surface 10 of the attaching part 6 of the wheel 2 is known (for example, refer patent document 1).
On the other hand, an inspection tool for inspecting the worn state of the nut seat 9 of the mounting hole 3 is shown in FIG. The inspection tool 20 is formed by a cone having a conical surface 21 which is opposite to the anticonical surface forming the seat surface 12 of the nut seat 9.
A method for inspecting the wear of the nut seat 9 using the inspection tool 20 will be described with reference to FIG. Bottom surface 22 of the inspection tool 20 (bottom surface of the cone) when the inspection tool 20 is installed on the nut seat 9 so that the conical surface 21 of the inspection tool 20 is placed on the seat surface 12 of the nut seat 9 of the wheel 2 after use. The position of the bottom surface 22 of the inspection tool 20 when the inspection tool 20 is installed on the nut seat 9 so that the conical surface 21 of the inspection tool 20 is placed on the seat surface 12 of the nut seat 9 of the unused wheel 2. If it is positioned below, it can be determined that the seat surface 12 of the nut seat 9 is worn and the diameter of the nut seat 9 is enlarged.
For example, when the inspection tool 20 is installed on the nut seat 9 so that the conical surface 21 of the inspection tool 20 is placed on the seat surface 12 of the nut seat 9 of the unused wheel 2, the bottom surface 22 of the inspection tool 20 and the wheel 2. An inspection tool 20 having a size such that the surface 11 of the mounting portion 6 is positioned on the same plane is prepared, and the conical surface 21 of the inspection tool 20 is provided on the seat surface 12 of the nut seat 9 of the wheel 2 after use. When the position of the bottom surface 22 of the inspection tool 20 when the inspection tool 20 is installed on the nut seat 9 so as to be placed is located in the nut seat 9 that is lower than the surface 11 of the mounting portion 6, the nut seat It can be determined that the seat surface 12 of the bearing 9 is worn and the diameter of the nut seat 9 is increased.
JP 2003-287416 A

しかしながら、上述した円錐体により形成された検査具では、使用後のホイールのボルト孔が変形しているか否かを検査するボルト孔の変形検査を行えないという課題があった。
本発明は、従来の問題点に鑑みてなされたもので、ナット座の径が拡大しているか否かを判定するためのナット座の座面の摩滅状態検査を行えるとともに、ボルト孔の変形検査を行える検査具などを提供する。 However, the inspection tool formed of the above-described cone has a problem that the bolt hole deformation inspection for inspecting whether or not the bolt hole of the wheel after use is deformed cannot be performed.
The present invention has been made in view of the conventional problems, and it is possible to inspect the worn state of the seat surface of the nut seat for determining whether or not the diameter of the nut seat is enlarged, and to inspect the deformation of the bolt hole. Providing inspection tools that can be used.

本発明による第１の検査具は、ホイールを車両のハブに取付けるためにホイールに形成された取付孔の状態を検査する検査具であって、取付孔は、ハブより突出するように設けられたボルトを貫通させるボルト孔と当該ボルト孔を貫通したボルトに締結されるナットのナット座とを備え、検査具は、未使用のナット座の座面と反対の形状の面を備えたナット座対応面と当該ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる嵌め合い軸部とを備えた柱体により形成されたことを特徴とする。
本発明による第２の検査具は、ホイールを車両のハブに取付けるためにホイールに形成された取付孔の状態を検査する検査具であって、取付孔は、ハブより突出するように設けられたボルトを貫通させるボルト孔と当該ボルト孔を貫通したボルトに締結されるナットのナット座とを備え、検査具は、軸の周面の円弧の径が未使用のナット座の入口孔径よりも大きい寸法に形成された大軸部と当該大軸部の一端の周面より延長して設けられて未使用のナット座の座面と反対の形状の面を備えたナット座対応面と当該ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる嵌め合い軸部とを備えた柱体により形成されたことを特徴とする。
本発明による第３の検査具は、ホイールを車両のハブに取付けるためにホイールに形成された取付孔の検査具であって、取付孔は、ハブより突出するように設けられたボルトを貫通させるボルト孔と当該ボルト孔を貫通したボルトに締結されるナットのナット座とを備え、検査具は、軸の周面の円弧の径が未使用のナット座の入口孔径よりも大きい寸法に形成された大軸部と当該大軸部の一端に設けられた第１検査部と当該大軸部の他端に設けられた第２検査部とを備えた柱体により形成され、第１検査部は、大軸部の一端の周面より延長して設けられて未使用のナット座の座面と反対の形状の面を備えた第１ナット座対応面と当該第１ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる第１嵌め合い軸部とを備え、第２検査部は、大軸部の他端の周面より延長して設けられて未使用のナット座の座面と反対の形状の面を備えた第２ナット座対応面と当該第２ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる第２嵌め合い軸部とを備え、第１嵌め合い軸部の軸の直径寸法と第２嵌め合い軸部の軸の直径寸法とが異なることを特徴とする。
柱体は、円柱状体の周面の一部が円柱状体の一端と他端とに渡って連続して除去された周面欠け柱体により形成されたことも特徴とする。
円柱状体の周面の一部が円柱状体の一端と他端とに渡って連続して除去された後の面が平面であり、この平面においてナット座対応面と大軸部との境界を示す直線が設けられたことも特徴とする。
周面欠け柱体は、円柱状体の中心軸に沿って円柱状体を半分に分割した分割体よりも大きいことも特徴とする。
周面欠け柱体の重量が、円柱状体の重量の６０％〜８０％であることも特徴とする。
本発明の検査具を用いた取付孔の検査方法は、検査具の嵌め合い軸部が使用後のボルト孔に嵌らない場合には、ボルト孔が変形していると判定することを特徴とする。
検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面と大軸部との境界位置がナット座内に位置した場合には、ナット座の径が拡大していると判定することも特徴とする。
検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面とナット座の座面との間に生じた隙間の大きさが所定の大きさ以上である場合には、ナット座が変形又は陥没していると判定することも特徴とする。
第１嵌め合い軸部と第２嵌め合い軸部とのうち使用後のボルト孔内に入った状態でがたつきの小さいほうの嵌め合い軸部を有した検査部を用いて検査を行うことも特徴とする。 A first inspection tool according to the present invention is an inspection tool for inspecting a state of an attachment hole formed in a wheel for attaching the wheel to a hub of a vehicle, and the attachment hole is provided so as to protrude from the hub. Bolt holes that allow bolts to pass through and nut seats of nuts that are fastened to the bolts that pass through the bolt holes. The inspection tool is compatible with nut seats that have a surface opposite to the seat surface of unused nut seats. Formed by a shaft extending from the end surface of the nut seat corresponding surface and the diameter of the circular arc of the peripheral surface of the shaft is smaller than the diameter of the unused bolt hole, and is fitted into the bolt hole after use. It is formed by the pillar provided with the fitting shaft part to be formed.
A second inspection tool according to the present invention is an inspection tool for inspecting a state of an attachment hole formed in a wheel for attaching the wheel to a hub of a vehicle, and the attachment hole is provided so as to protrude from the hub. A bolt hole that allows a bolt to pass therethrough and a nut seat of a nut that is fastened to the bolt that has passed through the bolt hole are provided, and the inspection tool has a larger diameter of the circular arc on the peripheral surface of the shaft than the inlet hole diameter of the unused nut seat A nut seat-corresponding surface having a large shaft portion formed in a dimension and a surface opposite to a seat surface of an unused nut seat provided extending from the peripheral surface of one end of the large shaft portion and the nut seat A fitting shaft that is formed by a shaft extending from the peripheral surface at the end of the corresponding surface, and whose diameter of the circular arc on the peripheral surface of the shaft is smaller than the diameter of an unused bolt hole, and is fitted into the bolt hole after use. Characterized by being formed by a pillar body with a portion That.
A third inspection tool according to the present invention is an inspection tool for an attachment hole formed in a wheel for attaching the wheel to a vehicle hub, and the attachment hole penetrates a bolt provided so as to protrude from the hub. The inspection tool is formed so that the diameter of the circular arc on the peripheral surface of the shaft is larger than the diameter of the inlet hole of the unused nut seat. The first inspection unit is formed by a column body including a large shaft part, a first inspection unit provided at one end of the large shaft part, and a second inspection unit provided at the other end of the large shaft part. A first nut seat corresponding surface provided with a surface opposite to a seat surface of an unused nut seat provided extending from the peripheral surface of one end of the large shaft portion, and a terminal end of the first nut seat corresponding surface It is formed by a shaft extending from the peripheral surface, and the diameter of the circular arc on the peripheral surface of the shaft is straight from an unused bolt hole. A first fitting shaft portion that is formed in a smaller dimension and is fitted into the bolt hole after use, and the second inspection portion is provided to extend from the peripheral surface of the other end of the large shaft portion and is unused. A second nut seat corresponding surface having a surface opposite to the seat surface of the nut seat and a shaft extending from the peripheral surface at the end of the second nut seat corresponding surface, and the diameter of the arc of the peripheral surface of the shaft is A second fitting shaft portion that is formed to a size smaller than the diameter of the unused bolt hole and is fitted into the bolt hole after use, and the diameter size of the shaft of the first fitting shaft portion and the second fitting shaft The diameter dimension of the shaft of the part is different.
The column body is also characterized in that it is formed by a peripheral surface chipped column body in which a part of the circumferential surface of the columnar body is continuously removed across one end and the other end of the columnar body.
The surface after a part of the peripheral surface of the cylindrical body is continuously removed across one end and the other end of the cylindrical body is a flat surface, and the boundary between the nut seat corresponding surface and the large shaft portion in this plane It is also characterized in that a straight line indicating is provided.
The peripheral chipped columnar body is also characterized by being larger than a divided body obtained by dividing the cylindrical body in half along the central axis of the cylindrical body.
It is also characterized in that the weight of the peripheral chipped body is 60% to 80% of the weight of the cylindrical body.
The mounting hole inspection method using the inspection tool of the present invention is characterized in that when the fitting shaft portion of the inspection tool does not fit into the bolt hole after use, it is determined that the bolt hole is deformed. To do.
If the nut seat support surface of the inspection tool is installed on the seat surface of the nut seat after use and the boundary position between the nut seat support surface and the large shaft is located within the nut seat, the diameter of the nut seat is It is also characterized by determining that the image has been enlarged.
In a state where the nut seat corresponding surface of the inspection tool is installed on the seat surface of the nut seat after use, the size of the gap generated between the nut seat corresponding surface and the seat surface of the nut seat is not less than a predetermined size. In this case, it is also characterized in that it is determined that the nut seat is deformed or depressed.
It is also possible to perform an inspection using an inspection unit having a fitting shaft portion with a smaller backlash in a state where the first fitting shaft portion and the second fitting shaft portion are in the bolt hole after use. Features.

本発明の第１の検査具によれば、嵌め合い軸部とナット座対応面とを備えた検査具としたので、嵌め合い軸部が使用後のボルト孔に嵌らない場合には、ボルト孔が変形していると判定できるようになる。即ち、ボルト孔の変形検査を行える検査具を提供できる。また、検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面がナット座の内側に位置した場合には、ナット座の座面が摩滅してナット座の径が拡大していると判定できるようになる。即ち、ボルト孔の変形検査及びナット座の座面の摩滅状態検査を行える検査具を提供できる。
本発明の第２の検査具によれば、嵌め合い軸部とナット座対応面と大軸部とを備えた検査具としたので、ボルト孔の変形検査を行えるとともに、検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面と大軸部との境界位置がナット座内に位置した場合には、ナット座の座面が摩滅してナット座の径が拡大していると判定できるようになる。即ち、ボルト孔の変形検査及びナット座の座面の摩滅状態検査を行える検査具を提供できる。また、大軸部を掴んで検査具が水平状態となるように検査具の姿勢を容易に調整できるようになる。
本発明の第３の検査具によれば、大軸部と、大軸部の一端に設けられた第１嵌め合い軸部と第１ナット座対応面とを備えた第１検査部と、大軸部の他端に設けられた第２嵌め合い軸部と第２ナット座対応面とを備えた第２検査部とを備え、第１嵌め合い軸部の軸の直径寸法と第２嵌め合い軸部の軸の直径寸法とを異ならせた検査具としたので、上記効果が得られるとともに、第１嵌め合い軸部と第２嵌め合い軸部とのうち使用後のボルト孔内に入った状態でがたつきの小さいほうの嵌め合い軸部（使用後のボルト孔にきつく嵌め合わされた嵌め合い軸部）を有した検査部を用いて検査を行うことができることで、ボルト孔にきつく嵌め合わされた嵌め合い軸部を持つ検査部を用いて検査を行うことにより、ボルト孔の孔の中心と嵌め合い軸部の軸の中心とのずれの少ない状態とできるので、ナット座の座面の摩滅状態検査を１つの検査具で正確に行える。さらに、ボルト孔の内面にバリがないような場合とボルト孔の内面に小さなバリがある場合とに対応した、ボルト孔の変形検査及びナット座の座面の摩滅状態検査を１つの検査具で正確かつ容易に行える。
また、円柱状体の周面の一部が円柱状体の一端と他端とに渡って連続して除去された周面欠け柱体により形成された検査具としたので、検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座の座面とナット座対応面との間の隙間を、周面の一部が除去された部分を通して容易に目視確認することが出来るようになり、ナット座の変形又は陥没等の有無を検査するナット座の座面状態検査を容易かつ正確に行えるようになる。
円柱状体の周面の一部が円柱状体の一端部と他端部とに渡って連続して除去された後の面が平面であり、この平面においてナット座対応面と大軸部との境界を示す直線が設けられたので、検査具のナット座対応面が使用後のナット座の座面に設置された状態において、直線と取付部の表面との平行を確認することで、検査具の水平状態を容易に確認でき、ナット座の座面の摩滅状態検査における判定の信頼性を向上できる。
周面欠け柱体を、円柱状体を円柱状体の中心軸に沿って半分に分割した分割体よりも大きくしたので、検査具をナット座の座面に設置したときの検査具の直立安定性が良くなり、検査を容易かつ正確に行えるようになる。
周面欠け柱体の重量を、円柱状体の重量の６０％〜８０％としたので、検査具をナット座の座面に設置したときの直立安定性がさらに良くなり、検査を容易かつ正確に行える。
本発明の検査具を使用した検査方法によれば、嵌め合い軸部が使用後のボルト孔に嵌らない場合には、ボルト孔が変形していると判定するので、ボルト孔が変形しているか否かの判定が容易となる。
検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面と大軸部との境界位置がナット座内に位置した場合には、ナット座の径が拡大していると判定するので、ナット座の径が拡大しているか否かの判定が容易となる。
検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面とナット座の座面との間に生じた隙間の大きさが所定の大きさ以上である場合には、ナット座が変形又は陥没していると判定するので、ナット座の座面状態検査が容易となる。
第１嵌め合い軸部と第２嵌め合い軸部とのうち使用後のボルト孔内に入った状態でがたつきの小さいほうの嵌め合い軸部を有した検査部を用いて検査を行うことにより、ボルト孔の孔の中心と嵌め合い軸部の軸の中心とのずれの少ない状態とできるので、検査を正確に行える。 According to the first inspection tool of the present invention, since the inspection tool is provided with a fitting shaft portion and a nut seat-corresponding surface, if the fitting shaft portion does not fit into the bolt hole after use, the bolt It can be determined that the hole is deformed. That is, it is possible to provide an inspection tool that can perform deformation inspection of bolt holes. In addition, if the nut seat support surface is located inside the nut seat while the nut seat support surface of the inspection tool is installed on the seat surface of the nut seat after use, the seat surface of the nut seat will wear out and the nut It can be determined that the diameter of the seat is increasing. That is, it is possible to provide an inspection tool capable of performing deformation inspection of the bolt hole and wear state inspection of the seat surface of the nut seat.
According to the second inspection tool of the present invention, since the inspection tool is provided with the fitting shaft portion, the nut seat corresponding surface, and the large shaft portion, the deformation inspection of the bolt hole can be performed, and the nut seat of the inspection tool can be supported. If the boundary position between the nut seat-compatible surface and the large shaft is located in the nut seat when the surface is installed on the seat surface of the nut seat after use, the seat surface of the nut seat wears out and the nut seat It can be determined that the diameter of the is enlarged. That is, it is possible to provide an inspection tool capable of performing deformation inspection of the bolt hole and wear state inspection of the seat surface of the nut seat. In addition, the posture of the inspection tool can be easily adjusted so that the inspection tool is in a horizontal state by grasping the large shaft portion.
According to the third inspection tool of the present invention, the first inspection portion including the large shaft portion, the first fitting shaft portion provided at one end of the large shaft portion, and the first nut seat corresponding surface, A second fitting shaft portion provided at the other end of the shaft portion and a second inspection portion having a second nut seat corresponding surface, the diameter of the shaft of the first fitting shaft portion and the second fitting Since the inspection tool has a different shaft diameter of the shaft portion, the above-mentioned effects can be obtained, and the first fitting shaft portion and the second fitting shaft portion enter the bolt hole after use. It can be inspected using the inspection part with the fitting shaft part (fitting shaft part tightly fitted to the bolt hole after use) with the smaller backlash in the state, so that it is tightly fitted to the bolt hole. The center of the hole of the bolt hole and the fitting shaft part by performing an inspection using the inspection part having the fitting shaft part. Since it a deviation less state of the center of the shaft, exactly perform the wear state inspection of the bearing surface of the nut seat in one test fixture. In addition, a single inspection tool can be used to inspect the deformation of the bolt hole and the worn state of the seat surface of the nut seat corresponding to the case where there is no burr on the inner surface of the bolt hole and the case where there is a small burr on the inner surface of the bolt hole. Accurate and easy to do.
Further, since the inspection tool is formed by the peripheral surface chipped column body in which a part of the peripheral surface of the cylindrical body is continuously removed across one end and the other end of the cylindrical body, the nut seat of the inspection tool is provided. When the corresponding surface is installed on the seat surface of the nut seat after use, the gap between the seat surface of the nut seat and the corresponding surface of the nut seat is easily visually confirmed through the part where the peripheral surface has been removed. As a result, it is possible to easily and accurately perform a seat surface state inspection of the nut seat for inspecting the presence or absence of deformation or depression of the nut seat.
The surface after a part of the circumferential surface of the cylindrical body is continuously removed across one end and the other end of the cylindrical body is a plane, and in this plane, the nut seat corresponding surface and the large shaft portion Since the straight line indicating the boundary is provided, check that the straight line and the surface of the mounting part are parallel when the nut seat corresponding surface of the inspection tool is installed on the seat surface of the nut seat after use. The horizontal state of the tool can be easily confirmed, and the reliability of the determination in the wear state inspection of the bearing surface of the nut seat can be improved.
Since the column with a peripheral surface is larger than the split body that divides the columnar body in half along the central axis of the columnar body, the inspection tool stands upright and stable when it is installed on the seat surface of the nut seat. And the inspection can be performed easily and accurately.
Since the weight of the peripheral column is 60% to 80% of the weight of the cylindrical body, the upright stability when the inspection tool is installed on the seat surface of the nut seat is further improved, and the inspection is easy and accurate. Can be done.
According to the inspection method using the inspection tool of the present invention, when the fitting shaft portion does not fit into the bolt hole after use, it is determined that the bolt hole is deformed. It is easy to determine whether or not there is.
If the nut seat support surface of the inspection tool is installed on the seat surface of the nut seat after use and the boundary position between the nut seat support surface and the large shaft is located within the nut seat, the diameter of the nut seat is Since it determines with having expanded, it will become easy to determine whether the diameter of a nut seat is expanding.
In a state where the nut seat corresponding surface of the inspection tool is installed on the seat surface of the nut seat after use, the size of the gap generated between the nut seat corresponding surface and the seat surface of the nut seat is not less than a predetermined size. In this case, since it is determined that the nut seat is deformed or depressed, the seat surface state inspection of the nut seat is facilitated.
By performing an inspection using an inspection portion having a fitting shaft portion with a smaller backlash in a state where the first fitting shaft portion and the second fitting shaft portion are in the bolt hole after use. Since the center of the hole of the bolt hole and the center of the shaft of the fitting shaft portion are small, the inspection can be performed accurately.

最良の形態１
図１乃至図５を参照し、最良の形態１による検査具の構成を説明する。尚、図８乃至図１２と同一部分は同一符号を付してその説明を省略する。最良の形態１では、円錐面状座により形成されたナット座９に対応したナット座対応面を備えた検査具を例にして説明する。 Best form 1
With reference to FIG. 1 thru | or FIG. 5, the structure of the test | inspection tool by the best form 1 is demonstrated. The same parts as those in FIGS. 8 to 12 are denoted by the same reference numerals, and the description thereof is omitted. In the best mode 1, an inspection tool provided with a nut seat corresponding surface corresponding to the nut seat 9 formed by a conical seat will be described as an example.

検査具３０は、アルミニウムやステンレスのような金属により形成された図２に示すような円柱状体６０の周面の一部が円柱状体６０の一端６１と他端６２とに渡って連続して除去された図１に示すような周面欠け柱体３１により形成される。当該周面欠け柱体３１は、両端部が検査部に形成され、両端部の検査部を互いに繋ぐ中間部分が大軸部４１に形成される。つまり、当該周面欠け柱体３１により形成された検査具３０は、大軸部４１と、大軸部４１の一端に設けられた第１検査部４２と、大軸部４１の他端に設けられた第２検査部４３とを備える。   In the inspection tool 30, a part of the circumferential surface of a cylindrical body 60 formed of a metal such as aluminum or stainless steel as shown in FIG. 2 is continuous across one end 61 and the other end 62 of the cylindrical body 60. 1 is formed by the peripheral surface chipped pillar body 31 as shown in FIG. The peripheral-surface chipped column body 31 has both end portions formed in the inspection portion, and an intermediate portion that connects the inspection portions in both end portions to each other is formed in the large shaft portion 41. That is, the inspection tool 30 formed by the peripheral chipped column 31 is provided at the large shaft portion 41, the first inspection portion 42 provided at one end of the large shaft portion 41, and the other end of the large shaft portion 41. Second inspection unit 43 provided.

上記円柱状体６０は、断面円形の大軸部６３と、断面円形の大軸部６３の両端部において大軸部６３と同軸に設けられた断面円形の嵌め合い軸部６４；６５と、大軸部６３の端部の外周面と嵌め合い軸部６４；６５の端部の外周面とを繋ぐ周面が未使用（新品）のナット座９の形状と反対の形状に形成されたナット座対応面６６；６７とを備える。このナット座対応面６６に形成された外周面を備えた円錐状軸部６８を軸と直交する面で切断した断面は円形である。円柱状体６０の断面円形の大軸部６３は、円形軸の直径ａが、未使用のホイール２のナット座９の入口５５の孔径Ｄ（ホイールの取付部の表面に位置するナット座の入口を形成する円孔縁の円の直径）に比べて１ｍｍ大きく形成される。円柱状体６０の一方の断面円形の嵌め合い軸部６４は、円形軸の直径ｃが、未使用のホイール２のボルト孔７の直径Ｄ１と比べて０．５ｍｍ小さく形成される。円柱状体６０の他方の断面円形の嵌め合い軸部６５は、円形軸の直径ｅが、未使用のホイール２のボルト孔７の直径Ｄ１と比べて１．０ｍｍ小さく形成される。円柱状体６０のナット座対応面６６；６７は、円錐体の頂部側を除いた円錐面のような形状に形成される。即ち、円柱状体６０のナット座対応面６６；６７は、ナット座９の形のキャビティを備えた成形型のキャビティによって形成される面形状と等しい。   The cylindrical body 60 includes a large shaft portion 63 having a circular cross section, a fitting shaft portion 64; 65 having a circular cross section provided coaxially with the large shaft portion 63 at both ends of the large shaft portion 63 having a circular cross section, Nut seat in which the outer peripheral surface connecting the outer peripheral surface of the end portion of the shaft portion 63 and the outer peripheral surface of the end portion of the fitting shaft portion 64; 65 is formed in a shape opposite to the shape of the unused (new) nut seat 9. Corresponding surfaces 66; 67. A cross section obtained by cutting the conical shaft portion 68 having an outer peripheral surface formed on the nut seat corresponding surface 66 with a surface orthogonal to the axis is circular. The large shaft portion 63 having a circular cross section of the cylindrical body 60 has a circular shaft diameter a that is a hole diameter D of the inlet 55 of the nut seat 9 of the unused wheel 2 (the inlet of the nut seat located on the surface of the wheel mounting portion). 1 mm larger than the diameter of the circle at the edge of the hole forming the circle. The fitting shaft portion 64 having one circular cross section of the cylindrical body 60 is formed such that the diameter c of the circular shaft is smaller by 0.5 mm than the diameter D1 of the bolt hole 7 of the unused wheel 2. The fitting shaft portion 65 having the other circular cross section of the cylindrical body 60 is formed such that the diameter e of the circular shaft is 1.0 mm smaller than the diameter D1 of the bolt hole 7 of the unused wheel 2. The nut seat corresponding surfaces 66; 67 of the cylindrical body 60 are formed in a shape like a conical surface excluding the top side of the conical body. That is, the nut seat corresponding surfaces 66; 67 of the cylindrical body 60 are equal to the surface shape formed by the cavity of the molding die having the cavity in the form of the nut seat 9.

図１に示す検査具３０を構成する周面欠け柱体３１は、例えば、図３に示すように、円柱状体６０の中心線Ａと平行な面３５であって円柱状体６０の中心線Ａを含まない面３５を境として円柱状体６０が中心線Ａに沿って分断されることによって得られる円柱状体６０の分割体のうちの重量の重い方の分割体６０Ａによって構成される。即ち、周面欠け柱体３１は、円柱状体６０の中心線Ａに沿って円柱状体６０を半分に等分割した分割体よりも大きく形成される。周面欠け柱体３１の重量は、円柱状体６０の重量の６０％〜８０％とした。   1 is a surface 35 parallel to the center line A of the cylindrical body 60 and the center line of the cylindrical body 60, for example, as shown in FIG. It is constituted by a heavier divided body 60A among the divided bodies of the cylindrical body 60 obtained by dividing the cylindrical body 60 along the center line A with a surface 35 not including A as a boundary. That is, the circumferential surface chipped pillar body 31 is formed larger than the divided body obtained by equally dividing the cylindrical body 60 in half along the center line A of the cylindrical body 60. The weight of the circumferential chipped column 31 was 60% to 80% of the weight of the cylindrical body 60.

検査具３０を構成する周面欠け柱体３１は、大軸部４１と、大軸部４１の一端側に設けられた第１検査部４２と、大軸部４１の他端側に設けられた第２検査部４３とを備える。大軸部４１は、軸の断面形状が円形の周囲の一部を除去した異形断面形状に形成され、軸の周面を形成する円弧面の円弧の径が未使用のホイール２のナット座９の入口５５の孔径Ｄよりも１．０ｍｍ大きい寸法に形成される。第１検査部４２は、第１ナット座対応面４６と第１嵌め合い軸部４７とを備える。第１ナット座対応面４６は、大軸部４１の一端の周面より延長して設けられて未使用のナット座９の座面１２と反対の形状の面を６０％以上残した面により形成される。第１嵌め合い軸部４７は、第１ナット座対応面４６の終端の周面より延長して軸の断面形状が円形の周囲の一部を除去した異形断面形状に形成され、軸の周面を形成する円弧面の円弧の径が未使用のホイール２のボルト孔７の直径Ｄ１よりも０．５ｍｍ小さい寸法に形成される。第２検査部４３は、第２ナット座対応面４８と第２嵌め合い軸部４９とを備える。第２ナット座対応面４８は、大軸部４１の他端の周面より延長して設けられて未使用のナット座９の座面１２と反対の形状の面を６０％以上残した面により形成される。第２嵌め合い軸部４９は、第２ナット座対応面４８の終端の周面より延長して軸の断面形状が円形の周囲の一部を除去した異形断面形状に形成され、軸の周面を形成する円弧面の円弧の径が未使用のホイール２のボルト孔７の直径Ｄ１よりも１．０ｍｍ小さい寸法に形成される。第１ナット座対応面４６及び第２ナット座対応面４８は、円錐体の頂部側を除いた円錐面の周面の一部をさらに除いたような形状に形成される。   The peripheral surface missing column 31 constituting the inspection tool 30 is provided on the large shaft portion 41, the first inspection portion 42 provided on one end side of the large shaft portion 41, and the other end side of the large shaft portion 41. A second inspection unit 43. The large shaft portion 41 is formed in an irregular cross-sectional shape in which a section of the shaft is partially removed from the periphery of the shaft, and the diameter of the arc of the arc surface forming the peripheral surface of the shaft is the nut seat 9 of the wheel 2 that is not used. The hole 55 is formed to have a size 1.0 mm larger than the hole diameter D of the inlet 55. The first inspection unit 42 includes a first nut seat corresponding surface 46 and a first fitting shaft portion 47. The first nut seat-corresponding surface 46 is formed by a surface that extends from the peripheral surface of one end of the large shaft portion 41 and leaves a surface having a shape opposite to the seat surface 12 of the unused nut seat 9 by 60% or more. Is done. The first fitting shaft portion 47 extends from the peripheral surface at the end of the first nut seat corresponding surface 46 and is formed into a modified cross-sectional shape in which a part of the cross-sectional shape of the shaft is circular is removed. The diameter of the arc of the arc surface forming is formed to be 0.5 mm smaller than the diameter D1 of the bolt hole 7 of the unused wheel 2. The second inspection portion 43 includes a second nut seat corresponding surface 48 and a second fitting shaft portion 49. The second nut seat corresponding surface 48 is provided so as to extend from the peripheral surface of the other end of the large shaft portion 41, and is a surface that leaves 60% or more of the surface opposite to the seat surface 12 of the unused nut seat 9. It is formed. The second fitting shaft portion 49 extends from the peripheral surface at the end of the second nut seat-corresponding surface 48 and is formed into a deformed cross-sectional shape in which a part of the cross-sectional shape of the shaft is circular is removed. The diameter of the arc of the arc surface forming is formed to be 1.0 mm smaller than the diameter D1 of the bolt hole 7 of the unused wheel 2. The 1st nut seat corresponding surface 46 and the 2nd nut seat corresponding surface 48 are formed in the shape which remove | excluded a part of peripheral surface of the conical surface except the top part side of the cone.

周面欠け柱体３１は、円柱状体６０の周面の一部が円柱状体６０の一端６１と他端６２とに渡って連続して除去された後の面が平面３６に形成される。この周面欠け柱体３１の平面３６には、第１ナット座対応面４６と大軸部４１との境界を示す直線がナット座摩滅判定線５０として形成されるとともに、第２ナット座対応面４８と大軸部４１との境界を示す直線がナット座摩滅判定線５１として形成される。   In the peripheral surface missing column body 31, a surface after a part of the peripheral surface of the cylindrical body 60 is continuously removed across the one end 61 and the other end 62 of the cylindrical body 60 is formed on the flat surface 36. . A straight line indicating the boundary between the first nut seat corresponding surface 46 and the large shaft portion 41 is formed as a nut seat wear determination line 50 on the flat surface 36 of the peripheral surface chipped column 31 and the second nut seat corresponding surface. A straight line indicating the boundary between 48 and the large shaft portion 41 is formed as a nut seat wear determination line 51.

検査具３０を使用した検査方法を図５乃至図７に基いて説明する。例えば、数年間、走行に用いられたホイール２の取付孔３を点検する場合において、図５に示すように、ホイール２の取付部６の表面１１が水平となって上を向くようにホイール２を検査場に設置してから、検査具３０を用いて取付孔３の検査を行う。尚、検査開始前には、ホイール２の取付孔３内及び取付孔３近辺位置の錆や汚れを除去しておく。   An inspection method using the inspection tool 30 will be described with reference to FIGS. For example, when inspecting the mounting hole 3 of the wheel 2 used for traveling for several years, as shown in FIG. 5, the wheel 2 so that the surface 11 of the mounting portion 6 of the wheel 2 is horizontal and faces upward. Is installed at the inspection site, and then the mounting hole 3 is inspected using the inspection tool 30. Before starting the inspection, rust and dirt in the mounting hole 3 of the wheel 2 and in the vicinity of the mounting hole 3 are removed.

まず、図７に示すように、検査具３０の第２検査部４３の第２嵌め合い軸部４９が取付孔３のボルト孔７に入るか否かを検査する（ステップＳ１）。即ち、第１嵌め合い軸部４７よりも径が小さくて未使用のホイール２のボルト孔７の直径Ｄ１よりも１．０ｍｍ小さい小径の第２嵌め合い軸部４９がボルト孔７に入らない場合は、ボルト孔７が変形している可能性があるので、ユーザにホイール２の交換を推奨する。   First, as shown in FIG. 7, it is inspected whether or not the second fitting shaft portion 49 of the second inspection portion 43 of the inspection tool 30 enters the bolt hole 7 of the attachment hole 3 (step S1). That is, when the second fitting shaft portion 49 having a smaller diameter than the first fitting shaft portion 47 and 1.0 mm smaller than the diameter D1 of the bolt hole 7 of the unused wheel 2 does not enter the bolt hole 7. Since the bolt hole 7 may be deformed, the user is recommended to replace the wheel 2.

そして、第１嵌め合い軸部４７と第２嵌め合い軸部４９とをそれぞれボルト孔７に挿入してみてボルト孔７にきつく嵌め合わされた嵌め合い軸部を持つ検査部（即ち、使用後のボルト孔７内に入った状態でがたつきの小さいほうの嵌め合い軸部を有した検査部）を用いて、ナット座９の座面１２の摩滅状態検査及びナット座９の座面状態検査を行う（ステップＳ２）。このように、ボルト孔７にきつく嵌め合わされた嵌め合い軸部を持つ検査部を用いて検査を行うことにより、ボルト孔７の孔の中心と嵌め合い軸の軸の中心とのずれの少ない状態とできるので、正確な検査を行うことが可能となる。   Then, when the first fitting shaft portion 47 and the second fitting shaft portion 49 are inserted into the bolt holes 7 respectively, the inspection portion having the fitting shaft portion tightly fitted to the bolt holes 7 (that is, after use) Using the inspection shaft having the fitting shaft portion with the smaller backlash when in the bolt hole 7, the wear state inspection of the seat surface 12 of the nut seat 9 and the seat surface state inspection of the nut seat 9 are performed. Perform (step S2). As described above, the inspection is performed using the inspection portion having the fitting shaft portion that is tightly fitted to the bolt hole 7 so that the center of the hole of the bolt hole 7 and the shaft center of the fitting shaft are less displaced. Therefore, an accurate inspection can be performed.

ボルト孔７にきつく嵌め合わされた嵌め合い軸部を持つ検査部のナット座対応面（ナット座対応面４６又はナット座対応面４８のうちの一方）をナット座９の方向に押し込んでナット座摩滅判定線（ナット座摩滅判定線５０又はナット座摩滅判定線５０のうちの一方）とホイール２の表面１１とが平行となるようにナット座対応面をナット座９に設置する。この場合に、ナット座摩滅判定線の位置がホイールの取付部６の表面１１よりもナット座９の内側に位置した場合は（ステップＳ３及び図６（ａ）参照）、ナット座９の径が１ｍｍ以上拡大している可能性があるので、ユーザにホイールの交換を推奨する。   Nut seat wear by pushing the nut seat corresponding surface (one of the nut seat corresponding surface 46 or the nut seat corresponding surface 48) of the inspection portion having the fitting shaft portion tightly fitted into the bolt hole 7 toward the nut seat 9. The nut seat corresponding surface is placed on the nut seat 9 so that the judgment line (one of the nut seat wear judgment line 50 or the nut seat wear judgment line 50) and the surface 11 of the wheel 2 are parallel to each other. In this case, when the position of the nut seat wear determination line is located inside the nut seat 9 with respect to the surface 11 of the wheel mounting portion 6 (see step S3 and FIG. 6A), the diameter of the nut seat 9 is Since there is a possibility that it is enlarged by 1 mm or more, it is recommended that the user replace the wheel.

さらに、検査具３０のナット座対応面がナット座９に設置された状態において、ナット座９の入口５５に近い位置においてのナット座対応面とナット座９との間に生じた隙間ｈ（図６（ｂ）参照）の大きさが０.５ｍｍ以上である場合には（ステップＳ４）、ナット座９が変形又は陥没していると判定し、ユーザにホイール２の交換を推奨する。   Further, in a state where the nut seat corresponding surface of the inspection tool 30 is installed on the nut seat 9, a gap h (see FIG. 5) formed between the nut seat corresponding surface and the nut seat 9 at a position close to the inlet 55 of the nut seat 9. 6 (b)) is 0.5 mm or more (step S4), it is determined that the nut seat 9 is deformed or depressed, and the user is recommended to replace the wheel 2.

未使用のボルト孔７の直径よりも１．０ｍｍ小さい寸法に形成された小径の第２嵌め合い軸部４９は、ボルト孔７の内面に小さなバリがある場合の検査用として用いることができ、未使用のボルト孔７の直径よりも０．５ｍｍ小さい寸法に形成された大径の第１嵌め合い軸部４７は、ボルト孔７の内面にバリがないかバリが微小な場合の検査用として用いることができる。大径の第１嵌め合い軸部４７を備えた第１検査部４２だけを用いて検査を行うと、ボルト孔７の内面にバリがある場合において第１嵌め合い軸部４７がボルト孔７内に入らずにボルト孔７が変形していると判断される可能性がある。しかしながら、径の異なる２つの嵌め合い軸部を用いたことにより、大径の第１嵌め合い軸部４７がボルト孔７内に入らずとも小径の第２嵌め合い軸部４９がボルト孔７内に入れば、ボルト孔７の変形ではなくボルト孔７の内面に小さな（０．５ｍｍ以下程度）バリがあるだけなので、この程度のバリがあったとしてもホイール交換推奨の対象とはしないようにできる。逆に、小径の第２嵌め合い軸部４９を備えた第２検査部４３だけを用いて検査を行うと、ボルト孔７の内面にバリがないかバリが微小な場合に、第２嵌め合い軸部４９がボルト孔７内でがたついてしまって、ナット座対応面６６の傾斜角度とナット座９の座面１２の傾斜角度とが合わなくなる可能性があり、上述したナット座９の座面１２の摩滅状態検査や、ナット座９の変形又は陥没等の有無を検査するナット座９の座面状態検査を正確に行えなくなる可能性がある。従って、第１検査部４２及び第２検査部４３の両方を用いて取付孔３の検査を行うことによって、ボルト孔７の内面にバリがないような場合とボルト孔の内面に小さなバリがある場合とに対応した、ボルト孔７の変形検査、ナット座９の座面１２の摩滅状態検査、ナット座９の座面状態検査のすべてを正確かつ容易に行える。検査具３０を用いれば、１つの検査具で、ボルト孔７の変形検査、ナット座９の座面１２の摩滅状態検査、ナット座９の座面状態検査のすべてを正確かつ容易に行える。   The second fitting shaft portion 49 having a small diameter formed to a size smaller by 1.0 mm than the diameter of the unused bolt hole 7 can be used for inspection when there is a small burr on the inner surface of the bolt hole 7, The large-diameter first fitting shaft portion 47 formed to have a size 0.5 mm smaller than the diameter of the unused bolt hole 7 is used for inspection when the inner surface of the bolt hole 7 has no burrs or is very small. Can be used. When the inspection is performed using only the first inspection portion 42 provided with the first fitting shaft portion 47 having a large diameter, the first fitting shaft portion 47 is located in the bolt hole 7 when there is a burr on the inner surface of the bolt hole 7. There is a possibility that it is determined that the bolt hole 7 is deformed without entering. However, by using two fitting shaft portions having different diameters, the second fitting shaft portion 49 having a small diameter can be formed in the bolt hole 7 even if the first fitting shaft portion 47 having a large diameter does not enter the bolt hole 7. If there is only a small burr (about 0.5mm or less) on the inner surface of the bolt hole 7 instead of deformation of the bolt hole 7, even if there is such a burr, it should not be recommended for wheel replacement it can. On the contrary, when the inspection is performed using only the second inspection portion 43 including the second fitting shaft portion 49 having a small diameter, the second fitting is performed when the inner surface of the bolt hole 7 has no burrs or the burrs are minute. The shaft portion 49 may rattle in the bolt hole 7 and the inclination angle of the nut seat corresponding surface 66 may not match the inclination angle of the seat surface 12 of the nut seat 9. There is a possibility that the wear state inspection of the surface 12 and the seat surface state inspection of the nut seat 9 for inspecting the presence or absence of deformation or depression of the nut seat 9 may not be performed accurately. Therefore, when the mounting hole 3 is inspected using both the first inspection portion 42 and the second inspection portion 43, there are cases where there is no burr on the inner surface of the bolt hole 7 and there are small burrs on the inner surface of the bolt hole. Corresponding to the case, the deformation inspection of the bolt hole 7, the wear state inspection of the seat surface 12 of the nut seat 9, and the seat surface state inspection of the nut seat 9 can all be performed accurately and easily. If the inspection tool 30 is used, the deformation inspection of the bolt hole 7, the wear state inspection of the seat surface 12 of the nut seat 9, and the seat surface state inspection of the nut seat 9 can be performed accurately and easily with one inspection tool.

最良の形態１による検査具３０によれば、ボルト孔７の変形検査、ナット座９の座面１２の摩滅状態検査、ナット座９の座面状態検査のすべてを正確かつ容易に行える。
最良の形態１による検査具３０によれば、重量が、円柱状体の重量の６０％〜８０％である周面欠け柱体３１により形成された検査具３０としたので、上述したナット座９の検査の際の目視検査の容易化が図れるとともに、取付孔３に検査部を設置した場合の検査具３０の直立安定性が向上するので、検査具３０の倒れや傾きが少なくなり、検査の容易化が図れる。
最良の形態１による検査具３０によれば、大軸部４１を掴んで検査具３０が水平状態となるように検査具３０の姿勢を容易に調整できるようになる。 According to the inspection tool 30 according to the best mode 1, all of the deformation inspection of the bolt hole 7, the wear state inspection of the seat surface 12 of the nut seat 9, and the seat surface state inspection of the nut seat 9 can be performed accurately and easily.
According to the inspection tool 30 of the best mode 1, since the weight is 60% to 80% of the weight of the columnar body, the inspection tool 30 is formed by the peripheral chipped column body 31, and thus the nut seat 9 described above. In addition, the visual inspection during the inspection can be facilitated, and the upright stability of the inspection tool 30 when the inspection part is installed in the mounting hole 3 is improved. Simplification can be achieved.
According to the inspection tool 30 according to the best mode 1, the posture of the inspection tool 30 can be easily adjusted such that the inspection tool 30 is in a horizontal state by grasping the large shaft portion 41.

上述した円柱状体６０を検査具３０として用いてもよいが、円柱状体６０を検査具３０として用いる場合には、ナット座９の座面１２の摩滅状態検査において、円柱状体６０の周面に形成された大軸部６３とナット座対応面６７との境界線部が取付部６の表面１１よりもナット座９の内側に位置しない場合には、ナット座９の入口５５の孔縁が境界線部の下に位置してナット座９の上方からナット座９の入口５５の孔縁と境界線部との間の間隔を目視できないため、ナット座９の入口５５の孔縁と境界線部との間の間隔を真横方向から目視しなければならず、ナット座９の摩滅がどれくらい進んでいるかを目視検査することが難しくなる。また、円柱状体６０を検査具３０として用いる場合には、ナット座９の変形又は陥没の有無を検査できない。   Although the above-described cylindrical body 60 may be used as the inspection tool 30, when the cylindrical body 60 is used as the inspection tool 30, in the wear state inspection of the seat surface 12 of the nut seat 9, When the boundary line portion between the large shaft portion 63 formed on the surface and the nut seat corresponding surface 67 is not located inside the nut seat 9 with respect to the surface 11 of the mounting portion 6, the hole edge of the inlet 55 of the nut seat 9 Is positioned below the boundary line portion, and the interval between the hole edge of the inlet 55 of the nut seat 9 and the boundary line portion cannot be visually observed from above the nut seat 9. The interval between the line portions must be visually observed from the side direction, and it is difficult to visually inspect how much the nut seat 9 is worn. Further, when the cylindrical body 60 is used as the inspection tool 30, it is impossible to inspect whether the nut seat 9 is deformed or depressed.

一方、最良の形態１による検査具３０によれば、周面欠け柱体３１により形成された検査具３０を用いたので、検査部を取付孔３内に設置してナット座９の座面１２の摩滅状態を検査する場合において、周面欠け柱体３１の除去された後に残った部分である平面３６の部分を取付孔３の上方から目視することが可能となり、上述した円柱状体６０を用いた目視検査に比べて目視検査が容易となる。
最良の形態１による検査具３０によれば、円柱状体６０の周面の一部が円柱状体６０の一端と他端とに渡って連続して除去された後の平面３６が、円柱状体６０の中心線Ａと平行な面であって円柱状体６０の中心線Ａを含まない平面３６に形成された周面欠け柱体３１であって、周面欠け柱体３１の除去された後の平面３６にナット座摩滅判定線５０；５１を設けたので、ナット座９の座面１２の摩滅状態検査において、摩滅具合の目視検査をより容易に行える。 On the other hand, according to the inspection tool 30 according to the best mode 1, since the inspection tool 30 formed by the peripheral surface chipped column 31 is used, the inspection portion is installed in the mounting hole 3 and the seat surface 12 of the nut seat 9 is provided. In the case of inspecting the worn state, the portion of the flat surface 36, which is the portion remaining after the peripheral surface chipped column 31 is removed, can be viewed from above the mounting hole 3, and the cylindrical body 60 described above can be seen. The visual inspection is easier than the visual inspection used.
According to the inspection tool 30 according to the best mode 1, the flat surface 36 after the part of the peripheral surface of the cylindrical body 60 is continuously removed across one end and the other end of the cylindrical body 60 is cylindrical. A peripheral surface missing column 31 formed on a plane 36 parallel to the center line A of the body 60 and not including the center line A of the cylindrical body 60, with the peripheral surface lacking column 31 removed. Since the nut seat wear determination lines 50; 51 are provided on the subsequent plane 36, visual inspection of the wear condition can be performed more easily in the wear state inspection of the seat surface 12 of the nut seat 9.

最良の形態１による検査具３０によれば、検査部を取付孔３内に設置した状態において、周面欠け柱体３１の除去された後に残った部分である平面３６の部分を取付孔３の上方から目視することができるようになったことで、ナット座９の変形又は陥没検査、即ち、ナット座９の座面状態検査を容易に行える。   According to the inspection tool 30 according to the best mode 1, in the state in which the inspection portion is installed in the mounting hole 3, the portion of the flat surface 36 that is the portion remaining after the peripheral surface missing column 31 is removed is attached to the mounting hole 3. By being able to see from above, the deformation or depression inspection of the nut seat 9, that is, the seat surface state inspection of the nut seat 9 can be easily performed.

最良の形態２
第１の検査部４２と大軸部４１とを備えた検査具３０と、第２検査部４３と大軸部４１とを備えた検査具３０とを別々に用意し、これら２つの検査具３０を用いて検査を行っても良い。 Best form 2
The inspection tool 30 provided with the first inspection part 42 and the large shaft part 41 and the inspection tool 30 provided with the second inspection part 43 and the large shaft part 41 are prepared separately, and these two inspection tools 30 are prepared. The inspection may be performed using.

最良の形態３
第１の検査部４２のみを備えた検査具３０と、第２検査部４３のみを備えた検査具３０とを別々に形成し、これら２つの検査具３０を用いて検査を行っても良い。 Best form 3
The inspection tool 30 including only the first inspection unit 42 and the inspection tool 30 including only the second inspection unit 43 may be formed separately, and inspection may be performed using these two inspection tools 30.

最良の形態４
上述した円柱状体６０により形成された検査具でもよい。
また、円柱状体６０の一方の検査部と大軸部６３とにより形成された検査具と、円柱状体６０の他方の検査部と大軸部６３とにより形成された検査具とを別々に形成し、これら２つの検査具を用いて検査を行っても良い。
さらに、円柱状体６０の一方の検査部のみで形成された検査具と、円柱状体６０の他方の検査部のみで形成された検査具とを別々に形成し、これら２つの検査具を用いて検査を行っても良い。
以上のような円柱状体により形成された検査具を用いた場合でも、本願の所期の目的である、ボルト孔７の変形検査及びナット座９の座面１２の摩滅状態検査が可能であるからである。 Best form 4
The inspection tool formed of the cylindrical body 60 described above may be used.
In addition, the inspection tool formed by one inspection portion of the cylindrical body 60 and the large shaft portion 63 and the inspection tool formed by the other inspection portion of the cylindrical body 60 and the large shaft portion 63 are separately provided. You may form and test | inspect using these two test | inspection tools.
Further, an inspection tool formed by only one inspection part of the cylindrical body 60 and an inspection tool formed only by the other inspection part of the cylindrical body 60 are separately formed, and these two inspection tools are used. You may inspect it.
Even when the inspection tool formed of the cylindrical body as described above is used, the deformation inspection of the bolt hole 7 and the wear state inspection of the seat surface 12 of the nut seat 9 can be performed, which are the intended purposes of the present application. Because.

他の形態
円柱状体６０の周面の一部が円柱状体の一端と他端とに渡って連続して除去された後の面が平面３６でない周面欠け柱体により形成された検査具としてもよい。
円柱状体６０の中心線Ａに沿って円柱状体６０を半分に等分割した分割体よりも大きく形成された周面欠け柱体を用いれば、取付孔３に検査部を設置した場合の直立安定性が向上する。
円柱状体６０の中心線Ａに沿って円柱状体６０を半分に等分割した分割体よりも小さい周面欠け柱体により形成された検査具を用いてもよい。この場合、取付孔３に検査部を設置した場合の直立安定性が悪くなるが、検査具を手で支えながら検査を行うことによって、ボルト孔の変形検査、ナット座の座面の摩滅状態検査、ナット座の座面状態検査のすべてを正確かつ容易に行えるようになる。 Other Forms The inspection tool formed by the peripheral surface missing column body whose surface after the part of the peripheral surface of the cylindrical body 60 is continuously removed across one end and the other end of the cylindrical body is not the flat surface 36. It is good.
If the peripheral surface chipped column body formed larger than the divided body obtained by equally dividing the cylindrical body 60 in half along the center line A of the cylindrical body 60 is used, the upright when the inspection portion is installed in the mounting hole 3 is used. Stability is improved.
You may use the test | inspection tool formed with the circumferential surface lacking column body smaller than the division body which divided the cylindrical body 60 into the half equally along the centerline A of the cylindrical body 60. FIG. In this case, the upright stability when the inspection part is installed in the mounting hole 3 is deteriorated. However, by performing the inspection while supporting the inspection tool by hand, the deformation inspection of the bolt hole and the wear state inspection of the seat surface of the nut seat are performed. In addition, it becomes possible to accurately and easily perform all the bearing surface inspections of the nut seat.

尚、ナット座９としては、上述した円錐面状座の他、半球面状座、平面座があるので、ナット座対応面６６は、ナット座９の種類に応じて形成すればよい。   As the nut seat 9, in addition to the above-mentioned conical surface seat, there are a hemispherical seat and a plane seat, so the nut seat corresponding surface 66 may be formed according to the type of the nut seat 9.

本発明の検査具及び検査方法は、構造上、フレッティング磨耗（摩滅）が生じ易いトラックやバスのような大型車に使用されるホイールの取付孔の状態検査に特に適しているが、一般車両に使用されるホイールの取付孔の状態検査にも使用できる。   The inspection tool and the inspection method of the present invention are particularly suitable for inspecting the state of the mounting holes of wheels used in large vehicles such as trucks and buses that are susceptible to fretting wear (wear) due to their structure. It can also be used to check the state of the wheel mounting holes used in

検査具を示す斜視図（最良の形態１）。The perspective view which shows a test | inspection tool (best form 1). 図１の検査具をＢ方向からみた正面図（最良の形態１）。The front view which looked at the test | inspection tool of FIG. 1 from the B direction (best form 1). 検査具を示す斜視図（最良の形態１；２）。The perspective view which shows a test | inspection tool (the best form 1; 2). 図３の検査具をＢ方向からみた正面図（最良の形態１；２）。The front view which looked at the test | inspection tool of FIG. 3 from the B direction (best form 1; 2). 検査方法を示す図（最良の形態１）。The figure which shows the inspection method (best form 1). 検査方法を示す図（最良の形態１）。The figure which shows the inspection method (best form 1). 検査方法の手順を示すフローチャート（最良の形態１）。The flowchart which shows the procedure of an inspection method (best form 1). タイヤの断面図。Sectional drawing of a tire. フレッティング磨耗（摩滅）の起こる過程を示す説明図。Explanatory drawing which shows the process in which fretting wear (wearing) occurs. フレッティング磨耗（摩滅）の起こる過程を示す説明図。Explanatory drawing which shows the process in which fretting wear (wearing) occurs. 従来の検査具及び検査方法を示す図。The figure which shows the conventional inspection tool and the inspection method. 従来の検査方法を示す図。The figure which shows the conventional test | inspection method.

符号の説明Explanation of symbols

１ ハブ、２ ホイール、３ 取付孔、４ 取付面、５ ボルト、６ 取付部、
７ ボルト孔、８ ナット、９ ナット座、１２ 座面、３０ 検査具、
３１ 周面欠け柱体、３６ 平面、４１ 大軸部、４２ 第１検査部、
４３ 第２検査部、４６ 第１ナット座対応面、４７ 第１嵌め合い軸部、
４８ 第２ナット座対応面、４９ 第２嵌め合い軸部、
５０；５１ ナット座摩滅判定線（直線）。 1 hub, 2 wheel, 3 mounting hole, 4 mounting surface, 5 bolt, 6 mounting part,
7 Bolt hole, 8 Nut, 9 Nut seat, 12 Seat surface, 30 Inspection tool,
31 peripheral surface missing column body, 36 plane, 41 large shaft part, 42 1st inspection part,
43 2nd inspection part, 46 1st nut seat corresponding surface, 47 1st fitting shaft part,
48 second nut seat corresponding surface, 49 second fitting shaft portion,
50; 51 Nut seat wear judgment line (straight line).

Claims (11)

ホイールを車両のハブに取付けるためにホイールに形成された取付孔の状態を検査する検査具であって、取付孔は、ハブより突出するように設けられたボルトを貫通させるボルト孔と当該ボルト孔を貫通したボルトに締結されるナットのナット座とを備え、検査具は、未使用のナット座の座面と反対の形状の面を備えたナット座対応面と当該ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる嵌め合い軸部とを備えた柱体により形成されたことを特徴とする取付孔の検査具。   An inspection tool for inspecting a state of a mounting hole formed in a wheel for mounting the wheel on a vehicle hub, wherein the mounting hole includes a bolt hole through which a bolt provided so as to protrude from the hub and the bolt hole. A nut seat that is fastened to a bolt that passes through the nut seat, and the inspection tool includes a nut seat corresponding surface having a surface opposite to the seat surface of the unused nut seat and an end of the nut seat corresponding surface. A column having a fitting shaft portion formed by a shaft extending from the peripheral surface and having a diameter of an arc of the peripheral surface of the shaft smaller than that of an unused bolt hole and fitted in the bolt hole after use. A mounting hole inspection tool characterized by being formed by a body. ホイールを車両のハブに取付けるためにホイールに形成された取付孔の状態を検査する検査具であって、取付孔は、ハブより突出するように設けられたボルトを貫通させるボルト孔と当該ボルト孔を貫通したボルトに締結されるナットのナット座とを備え、検査具は、軸の周面の円弧の径が未使用のナット座の入口孔径よりも大きい寸法に形成された大軸部と当該大軸部の一端の周面より延長して設けられて未使用のナット座の座面と反対の形状の面を備えたナット座対応面と当該ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる嵌め合い軸部とを備えた柱体により形成されたことを特徴とする取付孔の検査具。   An inspection tool for inspecting a state of a mounting hole formed in a wheel for mounting the wheel on a vehicle hub, wherein the mounting hole includes a bolt hole through which a bolt provided so as to protrude from the hub and the bolt hole. A nut seat fastened to a bolt that penetrates the shaft, and the inspection tool includes a large shaft portion formed such that the diameter of the arc of the circumferential surface of the shaft is larger than the inlet hole diameter of the unused nut seat, and Extending from the peripheral surface of one end of the large shaft portion and extending from the peripheral surface of the end of the corresponding surface of the nut seat and having a surface opposite to the seat surface of the unused nut seat. It is formed by a column body having a fitting shaft portion that is formed by a shaft and has a circular arc diameter on the peripheral surface of the shaft that is smaller than the diameter of an unused bolt hole and is fitted into a bolt hole after use. A mounting hole inspection tool characterized by that. ホイールを車両のハブに取付けるためにホイールに形成された取付孔の状態を検査する検査具であって、取付孔は、ハブより突出するように設けられたボルトを貫通させるボルト孔と当該ボルト孔を貫通したボルトに締結されるナットのナット座とを備え、検査具は、軸の周面の円弧の径が未使用のナット座の入口孔径よりも大きい寸法に形成された大軸部と当該大軸部の一端に設けられた第１検査部と当該大軸部の他端に設けられた第２検査部とを備えた柱体により形成され、第１検査部は、大軸部の一端の周面より延長して設けられて未使用のナット座の座面と反対の形状の面を備えた第１ナット座対応面と当該第１ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる第１嵌め合い軸部とを備え、第２検査部は、大軸部の他端の周面より延長して設けられて未使用のナット座の座面と反対の形状の面を備えた第２ナット座対応面と当該第２ナット座対応面の終端の周面より延長する軸により形成され軸の周面の円弧の径が未使用のボルト孔の直径よりも小さい寸法に形成されて使用後のボルト孔に嵌められる第２嵌め合い軸部とを備え、第１嵌め合い軸部の軸の直径寸法と第２嵌め合い軸部の軸の直径寸法とが異なることを特徴とする取付孔の検査具。   An inspection tool for inspecting a state of a mounting hole formed in a wheel for mounting the wheel on a vehicle hub, wherein the mounting hole includes a bolt hole through which a bolt provided so as to protrude from the hub and the bolt hole. A nut seat fastened to a bolt that penetrates the shaft, and the inspection tool includes a large shaft portion formed such that the diameter of the arc of the circumferential surface of the shaft is larger than the inlet hole diameter of the unused nut seat, and The first inspection part is formed by a column having a first inspection part provided at one end of the large shaft part and a second inspection part provided at the other end of the large shaft part, and the first inspection part is one end of the large shaft part. The first nut seat corresponding surface provided with a surface opposite to the seat surface of the unused nut seat and extended from the peripheral surface of the terminal end of the first nut seat corresponding surface. The diameter of the circular arc formed by the shaft is smaller than the diameter of the unused bolt hole A first fitting shaft portion that is formed in accordance with the law and fitted into the bolt hole after use, and the second inspection portion is provided to extend from the peripheral surface of the other end of the large shaft portion, and is not used. The second nut seat corresponding surface having a surface opposite to the seat surface and a shaft extending from the peripheral surface at the terminal end of the second nut seat corresponding surface, and the diameter of the arc of the peripheral surface of the shaft is unused And a second fitting shaft portion that is formed to have a size smaller than the diameter of the bolt hole and is fitted into the bolt hole after use, and the diameter size of the shaft of the first fitting shaft portion and the shaft of the second fitting shaft portion A mounting hole inspection tool characterized in that the diameter dimension of the mounting hole is different. 柱体は、円柱状体の周面の一部が円柱状体の一端と他端とに渡って連続して除去された周面欠け柱体により形成されたことを特徴とする請求項１乃至請求項３のいずれかに記載の取付孔の検査具。   The column body is formed by a peripheral surface chipped column body in which a part of the peripheral surface of the columnar body is continuously removed across one end and the other end of the columnar body. The mounting hole inspection tool according to claim 3. 円柱状体の周面の一部が円柱状体の一端と他端とに渡って連続して除去された後の面が平面であり、この平面においてナット座対応面と大軸部との境界を示す直線が設けられたことを特徴とする請求項４に記載の取付孔の検査具。   The surface after a part of the peripheral surface of the cylindrical body is continuously removed across one end and the other end of the cylindrical body is a flat surface, and the boundary between the nut seat corresponding surface and the large shaft portion in this plane The mounting hole inspection tool according to claim 4, wherein a straight line is provided. 周面欠け柱体は、円柱状体の中心軸に沿って円柱状体を半分に分割した分割体よりも大きいことを特徴とする請求項４又は請求項５に記載の取付孔の検査具。   The inspection tool for a mounting hole according to claim 4 or 5, wherein the circumferentially chipped column body is larger than a divided body obtained by dividing the columnar body in half along the central axis of the columnar body. 周面欠け柱体の重量が、円柱状体の重量の６０％〜８０％であることを特徴とする請求項４乃至請求項６のいずれかに記載の取付孔の検査具。   The weight of the peripheral chipped column is 60% to 80% of the weight of the cylindrical body, The mounting hole inspection tool according to any one of claims 4 to 6. 請求項１乃至請求項７のいずれかに記載の取付孔の検査具を用いた取付孔の検査方法であって、検査具の嵌め合い軸部が使用後のボルト孔に嵌らない場合には、ボルト孔が変形していると判定することを特徴とする取付孔の検査方法。   A mounting hole inspection method using the mounting hole inspection tool according to any one of claims 1 to 7, wherein the fitting shaft portion of the inspection tool does not fit into the bolt hole after use. A method for inspecting a mounting hole, wherein the bolt hole is determined to be deformed. 請求項１乃至請求項７のいずれかに記載の取付孔の検査具を用いた取付孔の検査方法であって、検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面と大軸部との境界位置がナット座内に位置した場合には、ナット座の径が拡大していると判定することを特徴とする取付孔の検査方法。   A mounting hole inspection method using the mounting hole inspection tool according to claim 1, wherein the nut seat corresponding surface of the inspection tool is installed on the seat surface of the nut seat after use. A method for inspecting a mounting hole, characterized in that, when the boundary position between the nut seat corresponding surface and the large shaft portion is located in the nut seat in a state, it is determined that the diameter of the nut seat is enlarged. 請求項４乃至請求項７のいずれかに記載の取付孔の検査具を用いた取付孔の検査方法であって、検査具のナット座対応面が使用後のナット座の座面に設置された状態においてナット座対応面とナット座の座面との間に生じた隙間の大きさが所定の大きさ以上である場合には、ナット座が変形又は陥没していると判定することを特徴とする取付孔の検査方法。   A mounting hole inspection method using the mounting hole inspection tool according to any one of claims 4 to 7, wherein the nut seat corresponding surface of the inspection tool is installed on the seat surface of the nut seat after use. In the state, when the size of the gap formed between the nut seat corresponding surface and the seat surface of the nut seat is a predetermined size or more, it is determined that the nut seat is deformed or depressed. Inspection method for mounting holes. 請求項９又は請求項１０に記載の取付孔の検査方法であって、第１嵌め合い軸部と第２嵌め合い軸部とのうち使用後のボルト孔内に入った状態でがたつきの小さいほうの嵌め合い軸部を有した検査部を用いたことを特徴とする取付孔の検査方法。   The method for inspecting a mounting hole according to claim 9 or 10, wherein the backlash is small in a state where the first fitting shaft portion and the second fitting shaft portion are in the bolt hole after use. A method for inspecting a mounting hole, comprising using an inspection portion having a fitting shaft portion.
JP2007331954A 2007-12-25 2007-12-25 Mounting hole inspection tool and inspection method Expired - Fee Related JP5171243B2 (en)

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JPS5613201A (en) * 1979-07-06 1981-02-09 Topy Ind Ltd Wheel disc
JPS59170204U (en) * 1983-04-28 1984-11-14 横浜ゴム株式会社 Pitch circle diameter measuring device for vehicle hub bolt or wheel hub bolt hole
JPH067285Y2 (en) * 1983-10-31 1994-02-23 金井 宏之 Nut seat pitch measuring device for wheels
JPS61250507A (en) * 1985-04-30 1986-11-07 Toshiba Corp Measuring apparatus
JPH0363501A (en) * 1989-07-31 1991-03-19 Kanai Hiroyuki Method and instrument for measuring nut seat diameter of wheel for vehicle
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