JP4683297B2 - Method for manufacturing a joint structure between a universal joint and a shaft - Google Patents

Method for manufacturing a joint structure between a universal joint and a shaft Download PDF

Info

Publication number
JP4683297B2
JP4683297B2 JP2006220024A JP2006220024A JP4683297B2 JP 4683297 B2 JP4683297 B2 JP 4683297B2 JP 2006220024 A JP2006220024 A JP 2006220024A JP 2006220024 A JP2006220024 A JP 2006220024A JP 4683297 B2 JP4683297 B2 JP 4683297B2
Authority
JP
Japan
Prior art keywords
shaft
tab
bolt
prevention tool
misassembly prevention
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2006220024A
Other languages
Japanese (ja)
Other versions
JP2008045611A (en
Inventor
明久 川鍋
茂孝 金目
裕 島田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JTEKT Corp
Original Assignee
JTEKT Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JTEKT Corp filed Critical JTEKT Corp
Priority to JP2006220024A priority Critical patent/JP4683297B2/en
Publication of JP2008045611A publication Critical patent/JP2008045611A/en
Application granted granted Critical
Publication of JP4683297B2 publication Critical patent/JP4683297B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
    • F16D1/116—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
    • F16D1/0864—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to tangential loading of the hub, e.g. a split hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
    • F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
    • F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)

Description

本発明は、自在継手とシャフトとの結合構造を製造する方法に関するものである。   The present invention relates to a method for manufacturing a joint structure between a universal joint and a shaft.

この種の自在継手は、シャフトを連結するためのヨークを備えており、ヨークはヨーク本体を備えている。ヨーク本体は、軸方向に延びるスリットを形成する筒状部と、上記スリットを挟んで相対向する第１および第２のタブとを含んでいる。第１のタブのボルト挿通孔から挿通されたボルトが、第２のタブのねじ孔にねじ込まれることにより、筒状部によってシャフトが締め付けられ、その結果、ヨーク本体にシャフトを固定されるようになっている。   This type of universal joint includes a yoke for connecting shafts, and the yoke includes a yoke body. The yoke main body includes a cylindrical portion that forms a slit extending in the axial direction, and first and second tabs that face each other with the slit interposed therebetween. As the bolt inserted from the bolt insertion hole of the first tab is screwed into the screw hole of the second tab, the shaft is tightened by the cylindrical portion, and as a result, the shaft is fixed to the yoke body. It has become.

通例、シャフトの外周には、その軸方向の所定位置に断面円弧状の逃がし部が設けられている。上記ボルトは、その逃がし部に挿通され、これにより、ボルトによって、シャフトが軸方向の正規位置に規制されるようになっている。
一方、筒状部へのシャフトの挿入量が不足し、シャフトが正規位置に達していない（いわゆる不完全嵌合の状態である）場合がある。その場合には、ボルトの先端がシャフトと干渉するので、ボルトを第２のタブのねじ孔内へ挿入できなくなっている。これにより、正規位置にないシャフトがヨーク本体に組み付けられるという、誤組み付けが防止されるようになっている（例えば特許文献１参照）。 In general, an outer periphery of the shaft is provided with a relief portion having an arcuate cross section at a predetermined position in the axial direction. The bolt is inserted into the relief portion, whereby the shaft is regulated to the normal position in the axial direction by the bolt.
On the other hand, there is a case where the amount of insertion of the shaft into the cylindrical portion is insufficient, and the shaft does not reach the normal position (so-called incomplete fitting state). In that case, since the tip of the bolt interferes with the shaft, the bolt cannot be inserted into the screw hole of the second tab. As a result, erroneous assembly, in which a shaft that is not in the normal position is assembled to the yoke body, is prevented (see, for example, Patent Document 1).

しかしながら、シャフトの先端を長くし過ぎると不完全嵌合は防止しやすくなる反面、ヨーク本体に挿通されたシャフトが、そのままヨークの十字軸部へ当接するおそれがあり、逆に短くし過ぎると不完全嵌合を防止し難い。したがって、車両毎に、シャフト先端部の長さ調整のために何度も設計、調整を繰り返す作業が必要になる場合があり、コストアップを招くおそれがある。   However, if the tip of the shaft is too long, it is easy to prevent incomplete fitting, but the shaft inserted through the yoke body may abut against the cross shaft portion of the yoke as it is. It is difficult to prevent complete mating. Therefore, for each vehicle, it may be necessary to repeat the design and adjustment many times for adjusting the length of the tip of the shaft, which may increase the cost.

一方、シャフトに針金製の位置決め部材を取り付け、この位置決め部材を用いて、シャフトとヨーク本体の筒状部の位相を合わせるとともに、筒状部へのシャフトの挿入量を規制するようにした自在継手とシャフトとの結合構造が提案されている（例えば特許文献２参照）。
特開２００１−２８０３６１号公報 実願平３−２４３１３号（実開平４−１１３３３４号）のＣＤ−ＲＯＭ On the other hand, a wire positioning member is attached to the shaft, and using this positioning member, the phases of the shaft and the cylindrical portion of the yoke body are matched, and the amount of insertion of the shaft into the cylindrical portion is regulated. And a shaft coupling structure have been proposed (see, for example, Patent Document 2).
JP 2001-280361 A CD-ROM for Japanese Utility Model No. 3-24313 (Japanese Utility Model Application No. 4-113334)

しかしながら、特許文献２では、自在継手にシャフトを組み付けた後にも、針金製の位置決め部材が自在継手に取り付けられたまま残存しており、この針金製の位置決め部材が、他のヨークと干渉しない範囲で、自在継手の屈曲角を設定することになり、したがって、屈曲角の大きさが制限されてしまう。さらに、自在継手の回転中心に対する最大回転半径が誤組付防止具の分だけ増大するため、周辺の部品との干渉を避けるために、配置スペースを大きく確保する必要がある。   However, in Patent Document 2, the wire positioning member remains attached to the universal joint even after the shaft is assembled to the universal joint, and the wire positioning member does not interfere with other yokes. Therefore, the bending angle of the universal joint is set, and therefore the size of the bending angle is limited. Furthermore, since the maximum turning radius with respect to the rotation center of the universal joint increases by the amount of the misassembly prevention tool, it is necessary to secure a large arrangement space in order to avoid interference with surrounding parts.

そこで、本発明の目的は、自在継手とシャフトとの結合構造を製造する方法において、シャフトの誤組付を確実に防止でき、しかも、組付工程で必要な誤組付防止具によって、自在継手の屈曲角の大きさが制限されることがないことである。   Accordingly, an object of the present invention is to reliably prevent misassembly of the shaft in a method for manufacturing a joint structure of a universal joint and a shaft, and to prevent the universal joint from being assembled by a misassembly prevention tool necessary in the assembly process. The size of the bending angle is not limited.

上記目的を達成するため、本発明は、軸方向に延びるスリットを形成する筒状部、並びに上記スリットを挟んで相対向する第１および第２のタブを含むヨーク本体に、合成樹脂製の誤組付防止具が取り付けられた状態で、シャフトを上記筒状部の軸方向の正規位置まで挿入するシャフト挿入工程と、上記第１のタブのねじ挿通孔に挿通されたボルトを、上記正規位置に挿入されたシャフトの外周面の凹溝を通して、上記第２のタブのねじ孔にねじ込むことにより、両タブを互いに近接させて、上記筒状部にシャフトを固定するシャフト固定工程とを備え、上記誤組付防止具は、第２のタブの外側面に沿う第１の部分と、第１の部分から突出形成され第２のタブのねじ孔の一部に弾性的に嵌合された第２の部分と、上記スリット内に配置され、第１のタブのボルト挿通孔から挿通されたボルトの先端に当接することにより、ボルトが第２のタブのねじ孔に挿通されることを阻止可能な阻止位置および阻止を解除する阻止解除位置に変位可能な第３の部分と、第１の部分および第３の部分を互いに連結した第４の部分とを含み、上記シャフト挿入工程では、上記正規位置へのシャフトの挿入に伴って、シャフトの先端によって誤組付防止具の第３の部分が押されることにより、上記第４の部分のねじりを伴って上記第３の部分が阻止位置から阻止解除位置に駆動され、上記シャフト固定工程では、上記ねじ孔へのボルトのねじ込みに伴って、ボルトの先端によって誤組付防止具の第２の部分がねじ孔から押し出されることにより、誤組付防止具がヨーク本体から取り外されることを特徴とするものである。   In order to achieve the above-described object, the present invention provides an error made of a synthetic resin in a yoke body including a cylindrical portion forming a slit extending in the axial direction and first and second tabs opposed to each other across the slit. With the assembly prevention tool attached, the shaft insertion step of inserting the shaft to the normal position in the axial direction of the cylindrical portion, and the bolt inserted through the screw insertion hole of the first tab, the normal position A shaft fixing step for fixing the shaft to the tubular portion by bringing both tabs close to each other by screwing into the screw hole of the second tab through the concave groove on the outer peripheral surface of the shaft inserted into The misassembly prevention tool includes a first part extending along the outer surface of the second tab, and a first part protruding from the first part and elastically fitted to a part of the screw hole of the second tab. 2 and disposed in the slit, Displacement to the blocking position where the bolt can be blocked from being inserted into the screw hole of the second tab and the blocking release position where the blocking is released by contacting the tip of the bolt inserted from the bolt insertion hole of the first tab A third portion that is possible, and a fourth portion that connects the first portion and the third portion to each other. In the shaft insertion step, the tip of the shaft is inserted along with the insertion of the shaft into the normal position. When the third part of the misassembly prevention tool is pushed by the third part, the third part is driven from the blocking position to the blocking release position with the torsion of the fourth part. In the shaft fixing step, As the bolt is screwed into the screw hole, the second part of the misassembly prevention tool is pushed out of the screw hole by the tip of the bolt, so that the misassembly prevention tool is removed from the yoke body. It is intended to.

本発明では、シャフトが筒状部の正規位置まで挿入されない状態（いわゆる半嵌合の状態）で、第１のタブのボルト挿通孔を通してボルトを挿入したときは、そのボルトの先端が阻止位置にある誤組付防止具に当接する。これにより、第２のタブのねじ孔へのボルトのねじ込みが阻止されるので、当該ボルトによりシャフトを固定することができなくなる。その結果、シャフトが半嵌合のままでヨーク本体に固定されてしまうという誤組み付けの発生を防止することができる。   In the present invention, when the bolt is inserted through the bolt insertion hole of the first tab in a state where the shaft is not inserted to the normal position of the cylindrical portion (so-called half-fitted state), the tip of the bolt is in the blocking position. It abuts against a certain misassembly prevention tool. As a result, the bolt is prevented from being screwed into the screw hole of the second tab, so that the shaft cannot be fixed by the bolt. As a result, it is possible to prevent the occurrence of erroneous assembly in which the shaft is fixed to the yoke body while being semi-fitted.

一方、シャフトが筒状部の正規位置まで挿入されると、その挿入に伴ってシャフトの端部により押された誤組付防止具の第３の部分が、阻止解除位置に変位される。これにより、次のシャフト固定工程において、第１のタブのボルト挿通孔を挿通したボルトを第２のタブのねじ孔にねじ込むことが許容され、その結果、当該ボルトによって正規位置にあるシャフトをヨーク本体に固定することができる。   On the other hand, when the shaft is inserted to the normal position of the cylindrical portion, the third portion of the misassembly prevention tool pushed by the end portion of the shaft with the insertion is displaced to the blocking release position. Thereby, in the next shaft fixing step, it is permitted to screw the bolt inserted through the bolt insertion hole of the first tab into the screw hole of the second tab, and as a result, the shaft in the normal position is yoked by the bolt. Can be fixed to the body.

また、シャフト固定工程において、ボルトのねじ込みによって、誤組付防止具を自在継手から取り外してしまうことができるので、完成した自在継手とシャフトとの結合構造において、誤組付防止具が残存することに起因する不具合をなくすことができる。特に、シャフトを固定するためのボルトのねじ込み作業をすると、誤組付防止具が自動的に取り外されるので、作業性が非常に良い。   Also, in the shaft fixing process, the misassembly prevention tool can be removed from the universal joint by screwing in the bolt, so that the misassembly prevention tool remains in the completed joint structure of the universal joint and the shaft. It is possible to eliminate problems caused by In particular, when a bolt is screwed to fix the shaft, the misassembly prevention tool is automatically removed, so the workability is very good.

また、上記シャフト挿入工程では、シャフトの先端によって誤組付防止具の第３の部分が押されることにより、誤組付防止具が第２のタブのねじ孔の軸線を中心として回動されるようにしてもよい（請求項２）。この場合、筒状部内に挿入されたシャフトの先端によって、誤組付防止具の第３の部分が押されたときに、誤組付防止具自体が回動するので、第４の部分のねじれ量が過大になることを防止することができる。   In the shaft insertion step, the third portion of the misassembly prevention tool is pushed by the tip of the shaft, so that the misassembly prevention tool is rotated about the axis of the screw hole of the second tab. (Claim 2). In this case, when the third portion of the misassembly prevention tool is pushed by the tip of the shaft inserted into the cylindrical portion, the misassembly prevention device itself rotates, so that the fourth portion is twisted. It is possible to prevent the amount from becoming excessive.

本発明の好ましい実施の形態を添付図面を参照しつつ説明する。
図１は本発明の一実施の形態に係る製造方法を用いて製造された、自在継手とシャフトとの結合構造Ｐが、ステアリング装置５０に適用された自動車５１を模式的に示している。
図１を参照して、ステアリング装置５０は、ステアリングホイール等の操舵部材５２と、車体５３に固定された筒状のステアリングコラム５４によって回転自在に支持され、上記の操舵部材５２が一端に連結されたステアリングシャフト５５と、このステアリングシャフト５５の他端と自在継手５６を介して連結されたインターミディエイトシャフト５８と、このインターミディエイトシャフト５８と自在継手５７を介して連結されたピニオンシャフト１と、このピニオンシャフト１のピニオン歯に噛み合うラック歯を有するラックバー（図示せず）を収容したラックハウジング５９と、上記ラックバーの端部を操向用の車輪６０に連結するためのタイロッド６１および図示しないナックルアームとを備えている。 Preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 schematically shows an automobile 51 in which a joint structure P between a universal joint and a shaft, which is manufactured using a manufacturing method according to an embodiment of the present invention, is applied to a steering device 50.
Referring to FIG. 1, a steering device 50 is rotatably supported by a steering member 52 such as a steering wheel and a cylindrical steering column 54 fixed to a vehicle body 53, and the steering member 52 is connected to one end. A steering shaft 55, an intermediate shaft 58 connected to the other end of the steering shaft 55 via a universal joint 56, a pinion shaft 1 connected to the intermediate shaft 58 and a universal joint 57, and A rack housing 59 containing a rack bar (not shown) having rack teeth meshing with the pinion teeth of the pinion shaft 1, a tie rod 61 for connecting the end of the rack bar to the steering wheel 60, and not shown It has a knuckle arm.

上記のピニオンシャフト１とラックバーとによって、ラックアンドピニオン機構からなる舵取り機構が構成されている。インターミディエイトシャフト５８は、車室とエンジンルームとを仕切るファイヤーウォール６２を貫通している。
本実施の形態では、インターミディエイトシャフト５８とピニオンシャフト１とを連結する自在継手５７に、結合構造Ｐが適用された例に則して説明するが、結合構造Ｐは、ステアリングシャフト５５とインターミディエイトシャフト５８とを連結する自在継手５６に適用されてもよい。 The pinion shaft 1 and the rack bar constitute a steering mechanism composed of a rack and pinion mechanism. The intermediate shaft 58 passes through a firewall 62 that partitions the vehicle compartment and the engine compartment.
In the present embodiment, description will be given in accordance with an example in which the coupling structure P is applied to the universal joint 57 that couples the intermediate shaft 58 and the pinion shaft 1. However, the coupling structure P includes the steering shaft 55 and the intermediate shaft. You may apply to the universal joint 56 which connects the shaft 58. FIG.

図２は上記結合構造Ｐの正面図である。図２を参照して、自動車５１のステアリング装置５０における、ピニオンシャフト１は自在継手ヨーク２に嵌合されており、この自在継手ヨーク２は十字軸３を介して他の自在継手ヨーク４に連結されている。他の自在継手ヨーク４はインターミディエイトシャフト５８（図１参照）に連結されている。
再び図２を参照して、自在継手ヨーク２は、ヨーク本体５と、このヨーク本体５にピニオンシャフト１を固定するための固定部材としてのボルト６とを備えている。ボルト６は、頭部７とねじ軸８とを備えている。 FIG. 2 is a front view of the coupling structure P. FIG. Referring to FIG. 2, in the steering device 50 of the automobile 51, the pinion shaft 1 is fitted to a universal joint yoke 2, and the universal joint yoke 2 is connected to another universal joint yoke 4 via a cross shaft 3. Has been. The other universal joint yoke 4 is connected to an intermediate shaft 58 (see FIG. 1).
Referring to FIG. 2 again, the universal joint yoke 2 includes a yoke body 5 and a bolt 6 as a fixing member for fixing the pinion shaft 1 to the yoke body 5. The bolt 6 includes a head 7 and a screw shaft 8.

上記ヨーク本体５は、ピニオンシャフト１を軸方向Ｘ１に沿って挿通させて保持するための筒状部９と、この筒状部９の一端から二股に分かれて延び、十字軸３の一対のトラニオン１０を軸受（図示せず）を介して支持するためのフォーク１１とを備えている。
上記筒状部９は、軸方向Ｘ１に沿って延びるスリット１２を形成しており、ヨーク本体５は、上記スリット１２を挟んで相対向する第１のタブ１３および第２のタブ１４を備えている。 The yoke body 5 has a cylindrical portion 9 for inserting and holding the pinion shaft 1 along the axial direction X1 and a bifurcated portion extending from one end of the cylindrical portion 9, and a pair of trunnions of the cross shaft 3. And a fork 11 for supporting 10 through a bearing (not shown).
The cylindrical portion 9 forms a slit 12 extending along the axial direction X1, and the yoke body 5 includes a first tab 13 and a second tab 14 facing each other with the slit 12 interposed therebetween. Yes.

上記のボルト６は、図５に示すように、第１のタブ１３に形成されたボルト挿通孔１５を通して、第２のタブ１４に形成されたねじ孔１６にねじ込まれるようになっている。これにより、第１および第２のタブ１３，１４を互いに近接させて筒状部９を縮径させてピニオンシャフト１を締めつけて筒状部９に固定するようになっている。
本実施の形態の、結合構造Ｐの製造方法では、ピニオンシャフト１がヨーク本体５の筒状部９の軸方向Ｘ１の正規位置に挿入されない状態で、ボルト６の締め付けによってピニオンシャフト１がヨーク本体５の筒状部９に固定されることを防止するための誤組付防止具１７（図３参照）が用いられる。その誤組付防止具１７は、製造過程では、図４に示すようにヨーク本体５に取り付けられおり、製造完了時には、図５に示すように、誤組付防止具１７が当該結合構造Ｐから取り外されるようにしてある。 As shown in FIG. 5, the bolt 6 is screwed into a screw hole 16 formed in the second tab 14 through a bolt insertion hole 15 formed in the first tab 13. As a result, the first and second tabs 13 and 14 are brought close to each other to reduce the diameter of the cylindrical portion 9, and the pinion shaft 1 is fastened and fixed to the cylindrical portion 9.
In the manufacturing method of the coupling structure P according to the present embodiment, the pinion shaft 1 is not inserted into the normal position in the axial direction X1 of the cylindrical portion 9 of the yoke body 5, and the pinion shaft 1 is tightened with the bolt 6. A misassembly prevention tool 17 (refer to FIG. 3) for preventing fixing to the cylindrical portion 9 is used. The erroneous assembly preventing tool 17 is attached to the yoke body 5 in the manufacturing process as shown in FIG. 4, and when the manufacturing is completed, the erroneous assembly preventing tool 17 is removed from the coupling structure P as shown in FIG. It is supposed to be removed.

具体的には、図３および図４を参照して、誤組付防止具１７は、第１の部分２１、第２の部分２２、第３の部分２３および第４の部分２４を備えており、弾性変形可能な合成樹脂部材により形成されている。誤組付防止具１７の第１の部分２１、第３の部分２３および第４の部分２４は、それぞれ板状をしている。
第１の部分２１は、第２のタブ１４の平坦な外側面１４ａに沿う板部材からなる。第２の部分２２は、第１の部分２１の内側面２１ａから突出形成された円柱状の突起からなる。第２の部分２２として、円筒状の突起を用いることもできる。第２の部分２２が第２のタブ１４のねじ孔１６の一部に弾性的に嵌合されることにより、図４に示すように、誤組付防止具１７がヨーク本体５に保持されるようになっている。 Specifically, referring to FIG. 3 and FIG. 4, the misassembly prevention tool 17 includes a first portion 21, a second portion 22, a third portion 23 and a fourth portion 24. The synthetic resin member is elastically deformable. The first part 21, the third part 23, and the fourth part 24 of the misassembly prevention tool 17 are each plate-shaped.
The first portion 21 is made of a plate member along the flat outer surface 14 a of the second tab 14. The second portion 22 is formed of a columnar protrusion that protrudes from the inner surface 21 a of the first portion 21. A cylindrical protrusion can also be used as the second portion 22. When the second portion 22 is elastically fitted into a part of the screw hole 16 of the second tab 14, the misassembly prevention tool 17 is held by the yoke body 5 as shown in FIG. 4. It is like that.

第３の部分２３は、第１の部分２１に平行な板部材からなり、スリット１２内に配置される。第４の部分２４は、第１の部分２１および第３の部分２３に例えば直交状に交差する板部材からなり、第１の部分２１および第３の部分２３の対応する一端部２１１，２３１を互いに連結している。
スリット１２内に配置された第３の部分２３は、第１のタブ１３のボルト挿通孔１５からボルト６が挿通された場合に、そのボルト６の先端に当接することにより、ボルト６が第２のタブ１４のねじ孔１６に挿通されることを阻止可能な阻止位置〔図４および図６（ａ）参照〕と、その阻止を解除する阻止解除位置〔図６（ｃ）参照〕とに変位可能である。阻止位置にある第３の部分２３は、ボルト挿通孔１５およびねじ孔１６とこれらの軸線Ｙ１方向に対向し、阻止解除位置に変位した第３の部分２３は、ボルト挿通孔１５およびねじ孔１６とは対向しないようになっている。 The third portion 23 is made of a plate member parallel to the first portion 21 and is disposed in the slit 12. The fourth portion 24 is formed of a plate member that intersects the first portion 21 and the third portion 23, for example, orthogonally, and the corresponding one end portions 211, 231 of the first portion 21 and the third portion 23 are connected to each other. Are connected to each other.
When the bolt 6 is inserted from the bolt insertion hole 15 of the first tab 13, the third portion 23 disposed in the slit 12 comes into contact with the tip of the bolt 6 so that the bolt 6 is second. Displacement between a blocking position (see FIG. 4 and FIG. 6 (a)) capable of blocking insertion through the screw hole 16 of the tab 14 and a blocking release position (see FIG. 6 (c)) for releasing the blocking. Is possible. The third portion 23 in the blocking position is opposed to the bolt insertion hole 15 and the screw hole 16 in the direction of the axis Y1, and the third portion 23 displaced to the blocking release position is the bolt insertion hole 15 and the screw hole 16. It is designed not to face.

図３を参照して、ピニオンシャフト１の端部１ａの外周面には、互いの間に二面幅を形成する相対向する一対の平坦部１ｂが形成されているとともに、一対の平坦部１ｂと直交する態様にて、ボルト６のための逃がし溝１ｃが形成されている。図４に示すように、筒状部９の内周面は、二面幅を形成するピニオンシャフト１の端部形状に合致する形状に形成され、組み付け時にピニオンシャフト１と筒状部９との相対回転が規制されるようになっている。   Referring to FIG. 3, a pair of opposed flat portions 1b that form a two-sided width between each other are formed on the outer peripheral surface of end portion 1a of pinion shaft 1, and a pair of flat portions 1b. The relief groove 1c for the bolt 6 is formed in a manner orthogonal to the above. As shown in FIG. 4, the inner peripheral surface of the cylindrical portion 9 is formed in a shape that matches the end shape of the pinion shaft 1 that forms a two-sided width, and the pinion shaft 1 and the cylindrical portion 9 are assembled when assembled. Relative rotation is regulated.

次いで、図６および図７を参照して、自在継手とシャフトとの結合構造Ｐの製造方法について説明する。まず、図６（ａ）〜（ｃ）はシャフト挿入工程を順次に示している。図６（ａ）および図４に示すように、誤組付防止具１７がヨーク本体５に取り付けられた状態で、ピニオンシャフト１をヨーク本体５の筒状部９内に挿入する。
すると、筒状部９内に挿入されたピニオンシャフト１の先端１ｄが、図６（ｂ）に示すように、第３の部分２３の駆動部としての一側縁２３２の一部を押す。 Next, with reference to FIG. 6 and FIG. 7, a method for manufacturing the joint structure P between the universal joint and the shaft will be described. First, FIGS. 6A to 6C sequentially show the shaft insertion process. As shown in FIG. 6A and FIG. 4, the pinion shaft 1 is inserted into the cylindrical portion 9 of the yoke body 5 with the misassembly prevention tool 17 attached to the yoke body 5.
Then, the tip 1d of the pinion shaft 1 inserted into the cylindrical portion 9 pushes a part of the one side edge 232 as the driving portion of the third portion 23 as shown in FIG.

これにより、誤組付防止具１７の第３の部分２３が、第４の部分２４のねじりを伴って、阻止位置から阻止解除位置側へ、図６（ｂ）において、反時計回りに回動する。
ピニオンシャフト１をさらに挿入すると、図６（ｃ）に示すように、第４の部分２４のねじりに加えて、誤組付防止具１７全体が、第２のタブ１４のねじ孔１６の軸線Ｙ１を中心として回動されることにより、第３の部分２３が、ねじ挿通孔１５とは対向しない阻止解除位置まで変位する。 As a result, the third portion 23 of the misassembly prevention tool 17 rotates counterclockwise in FIG. 6B from the blocking position to the blocking release position side with the torsion of the fourth portion 24. To do.
When the pinion shaft 1 is further inserted, as shown in FIG. 6C, in addition to the torsion of the fourth portion 24, the misassembly prevention tool 17 as a whole is the axis Y1 of the screw hole 16 of the second tab 14. , The third portion 23 is displaced to a blocking release position that does not face the screw insertion hole 15.

次いで、図７（ａ），（ｂ）に示すシャフト固定工程に移行する。図７（ａ）に示すように、第１のタブ１３のねじ挿通孔１５から挿通したボルト６のねじ軸８を、ピニオンシャフト１の逃がし溝１ｃを通して、第２のタブ１４のねじ孔１６にねじ込んでいくと、図７（ｂ）に示すように、ボルト６のねじ軸８の先端によって、誤組付防止具１７の第２の部分２２が、第２のタブ１４のねじ孔１６から外側方へ押し出され、その結果、誤組付防止具１７がヨーク本体５から取り外される。また、ボルト６によって両タブ１３，１４間の間隔が狭められ、筒状部９にピニオンシャフト１を強固に固定することができる。   Next, the process proceeds to the shaft fixing step shown in FIGS. As shown in FIG. 7A, the screw shaft 8 of the bolt 6 inserted through the screw insertion hole 15 of the first tab 13 is passed through the relief groove 1 c of the pinion shaft 1 to the screw hole 16 of the second tab 14. When screwed in, as shown in FIG. 7B, the second portion 22 of the misassembly prevention tool 17 is moved outward from the screw hole 16 of the second tab 14 by the tip of the screw shaft 8 of the bolt 6. As a result, the misassembly prevention tool 17 is removed from the yoke body 5. Moreover, the space | interval between both tabs 13 and 14 is narrowed with the volt | bolt 6, and the pinion shaft 1 can be firmly fixed to the cylindrical part 9. FIG.

本実施の形態によれば、ピニオンシャフト１が図５（ｂ）に示すように筒状部９の軸方向Ｘ１の正規位置まで挿入されない状態、いわゆる半嵌合の状態では、ボルト６の挿通方向から見て、誤組付防止具１７の阻止位置にある第３の部分２３が第２のタブ１４のねじ孔１６の少なくとも一部と重なっている。したがって、第１のタブ１３のボルト挿通孔１５を通してボルト６を挿入したときに、当該ボルト６の先端が阻止位置にある第３の部分２３に当接する。これにより、第２のタブ１４のねじ孔１６へのボルト６のねじ込みが阻止されるので、当該ボルト６によりピニオンシャフト１を固定することができなくなる。その結果、ピニオンシャフト１が半嵌合のままでヨーク本体５に固定されてしまうという誤組み付けを確実に防止することができる。   According to the present embodiment, in the state where the pinion shaft 1 is not inserted to the normal position in the axial direction X1 of the cylindrical portion 9 as shown in FIG. , The third portion 23 at the blocking position of the misassembly prevention tool 17 overlaps at least a part of the screw hole 16 of the second tab 14. Therefore, when the bolt 6 is inserted through the bolt insertion hole 15 of the first tab 13, the tip of the bolt 6 comes into contact with the third portion 23 at the blocking position. As a result, the screw 6 is prevented from being screwed into the screw hole 16 of the second tab 14, so that the pinion shaft 1 cannot be fixed by the bolt 6. As a result, it is possible to reliably prevent erroneous assembly that the pinion shaft 1 is fixed to the yoke body 5 while being semi-fitted.

一方、ピニオンシャフト１が図５（ｃ）に示すように筒状部９の軸方向Ｘ１の正規位置まで挿入されると、ピニオンシャフト１の先端１ｄにより誤組付防止具１７の第３の部分２３の一側縁２３２が押されることにより、誤組付防止具１７の第３の部分２３が阻止解除位置に変位される。これにより、第１のタブ１３のボルト挿通孔１５を挿通したボルト６を第２のタブ１４のねじ孔１６にねじ込むことが許容される。   On the other hand, when the pinion shaft 1 is inserted to the normal position in the axial direction X1 of the cylindrical portion 9 as shown in FIG. 5C, the third portion of the misassembly prevention tool 17 is caused by the tip 1d of the pinion shaft 1. When the one side edge 232 of 23 is pushed, the third portion 23 of the misassembly prevention tool 17 is displaced to the blocking release position. Thereby, the bolt 6 inserted through the bolt insertion hole 15 of the first tab 13 is allowed to be screwed into the screw hole 16 of the second tab 14.

そのボルト６のねじ込みに伴って、誤組付防止具１７を自動的に取り外すことができる。すなわち、従来構造においても必須の作業工程であったボルト締結工程を実施することによって、誤組付防止具１７を自動的に取り外せるので、作業性が非常に良い。
また、完成した結合構造Ｐにおいて、誤組付防止具１７が取り外されているので、ピニオンシャフト１とヨーク本体５との組み付け後に、自在継手５の回転半径が、十字軸３を中心とする、自在継手５７自身の組み付け前の回転半径を超えてしまうことがなくなり、その結果、自在継手５７の屈曲角の大きさが制限されることがない。 As the bolt 6 is screwed in, the misassembly prevention tool 17 can be automatically removed. That is, since the erroneous assembly preventing tool 17 can be automatically removed by carrying out the bolt fastening process, which is an essential work process in the conventional structure, the workability is very good.
Further, in the completed coupling structure P, since the erroneous assembly prevention tool 17 is removed, the rotational radius of the universal joint 5 is centered on the cross shaft 3 after the pinion shaft 1 and the yoke body 5 are assembled. As a result, the radius of rotation of the universal joint 57 is not exceeded, and as a result, the bending angle of the universal joint 57 is not limited.

また、結合構造Ｐの配置スペースの縮小化により、車両への搭載性が向上する。つまり、ピニオンシャフト１とヨーク本体５の組み付け後に、当該結合構造Ｐの周囲にある部品、例えば、ファイヤーウォール６２と自在継手５７とが近接する部位の近傍に配置される各種電装品の配線、車室内のカーペットなどとの干渉を確実に防止することができるという利点がある。   Moreover, the mounting property to the vehicle is improved by reducing the arrangement space of the coupling structure P. In other words, after the pinion shaft 1 and the yoke body 5 are assembled, wiring around various electrical components arranged in the vicinity of a part around the coupling structure P, for example, the part where the firewall 62 and the universal joint 57 are close to each other, the vehicle There is an advantage that interference with an indoor carpet can be surely prevented.

また、シャフト挿入工程において、誤組付防止具１７の第３の部分２３を阻止解除位置に変位させるときに、図６（ｃ）に示すにように、第４の部分２４のねじれに加えて、誤組付防止具１７全体が、第２のタブ１４のねじ孔１６の軸線Ｙ１を中心として回動されるようになっているので、第４の部分２４のねじれ量が過大になることが防止される。
本発明は上記実施の形態に限定されるものではなく、例えば、ピニオンシャフト１と筒状部９とをスプライン嵌合させて両者の相対回転を規制するようにしてもよい。 Further, in the shaft insertion step, when the third portion 23 of the misassembly prevention tool 17 is displaced to the blocking release position, in addition to the twist of the fourth portion 24 as shown in FIG. Since the entire misassembly prevention tool 17 is rotated around the axis Y1 of the screw hole 16 of the second tab 14, the amount of twist of the fourth portion 24 may be excessive. Is prevented.
The present invention is not limited to the above embodiment, and for example, the relative rotation of the pinion shaft 1 and the tubular portion 9 may be restricted by spline fitting.

本発明の一実施の形態の製造方法を用いて製造された、自在継手とシャフトとの結合構造が適用されたステアリング装置を含む車両の模式図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a vehicle including a steering device to which a joint structure between a universal joint and a shaft is manufactured, which is manufactured using a manufacturing method according to an embodiment of the present invention. 自在継手とシャフトとの結合構造の正面図である。It is a front view of the joint structure of a universal joint and a shaft. 結合構造の分解斜視図である。It is a disassembled perspective view of a coupling structure. シャフト組み付け前において、誤組付防止具が取りつけられたヨーク本体の断面図である。It is sectional drawing of the yoke main body with which the incorrect assembly | attachment prevention tool was attached before the shaft assembly | attachment. 製造完了後の結合構造の断面図である。It is sectional drawing of the joint structure after completion of manufacture. （ａ）〜（ｃ）は、シャフト挿入工程を順次に示す、結合構造の概略側面図である。(A)-(c) is a schematic side view of the coupling | bonding structure which shows a shaft insertion process in order. （ａ）および（ｂ）は、シャフト固定工程を順次に示す、結合構造の概略側面図である。(A) And (b) is a schematic side view of a joint structure which shows a shaft fixing process in order.

符号の説明Explanation of symbols

Ｐ…（自在継手とシャフトとの）結合構造、１…ピニオンシャフト、１ｃ…逃がし溝、１ｄ…先端、２…自在継手ヨーク、５…ヨーク本体、６…ボルト、９…筒状部、Ｘ１…（筒状部の）軸方向、１２…スリット、１３…第１のタブ、１４…第２のタブ、１４ａ…外側面、１５…ボルト挿通孔、１６…ねじ孔、Ｙ１…（ねじ孔の）軸線、１７…誤組付防止具、２１…第１の部分、２２…第２の部分、２３…第３の部分、２４…第４の部分   P ... Coupling structure (with universal joint and shaft), 1 ... Pinion shaft, 1c ... Relief groove, 1d ... Tip, 2 ... Universal joint yoke, 5 ... Yoke body, 6 ... Bolt, 9 ... Cylindrical part, X1 ... (Cylindrical part) axial direction, 12 ... slit, 13 ... first tab, 14 ... second tab, 14a ... outer surface, 15 ... bolt insertion hole, 16 ... screw hole, Y1 ... (of screw hole) Axis, 17 ... Misassembly prevention tool, 21 ... 1st part, 22 ... 2nd part, 23 ... 3rd part, 24 ... 4th part

Claims (2)

軸方向に延びるスリットを形成する筒状部、並びに上記スリットを挟んで相対向する第１および第２のタブを含むヨーク本体に、合成樹脂製の誤組付防止具が取り付けられた状態で、シャフトを上記筒状部の軸方向の正規位置まで挿入するシャフト挿入工程と、
上記第１のタブのねじ挿通孔に挿通されたボルトを、上記正規位置に挿入されたシャフトの外周面の凹溝を通して、上記第２のタブのねじ孔にねじ込むことにより、両タブを互いに近接させて、上記筒状部にシャフトを固定するシャフト固定工程とを備え、
上記誤組付防止具は、第２のタブの外側面に沿う第１の部分と、第１の部分から突出形成され第２のタブのねじ孔の一部に弾性的に嵌合された第２の部分と、上記スリット内に配置され、第１のタブのボルト挿通孔から挿通されたボルトの先端に当接することにより、ボルトが第２のタブのねじ孔に挿通されることを阻止可能な阻止位置および阻止を解除する阻止解除位置に変位可能な第３の部分と、第１の部分および第３の部分を互いに連結した第４の部分とを含み、
上記シャフト挿入工程では、上記正規位置へのシャフトの挿入に伴って、シャフトの先端によって誤組付防止具の第３の部分が押されることにより、上記第４の部分のねじりを伴って上記第３の部分が阻止位置から阻止解除位置に駆動され、
上記シャフト固定工程では、上記ねじ孔へのボルトのねじ込みに伴って、ボルトの先端によって誤組付防止具の第２の部分がねじ孔から押し出されることにより、誤組付防止具がヨーク本体から取り外されることを特徴とする自在継手とシャフトとの結合構造を製造する方法。 In the state where the cylindrical assembly forming the slit extending in the axial direction and the yoke body including the first and second tabs facing each other across the slit are attached with the synthetic resin misassembly prevention tool, A shaft insertion step of inserting the shaft to a normal position in the axial direction of the cylindrical portion;
The bolt inserted through the screw insertion hole of the first tab is screwed into the screw hole of the second tab through the concave groove on the outer peripheral surface of the shaft inserted into the regular position, thereby bringing the two tabs close to each other. And a shaft fixing step of fixing the shaft to the cylindrical portion,
The misassembly prevention tool includes a first part extending along the outer surface of the second tab, and a first part protruding from the first part and elastically fitted to a part of the screw hole of the second tab. It is possible to prevent the bolt from being inserted into the screw hole of the second tab by contacting the tip of the bolt inserted through the bolt insertion hole of the first tab. A third portion displaceable to a blocking position and a blocking release position for releasing blocking, and a fourth portion connecting the first portion and the third portion to each other;
In the shaft insertion step, the third part of the misassembly prevention tool is pushed by the tip of the shaft as the shaft is inserted into the regular position, whereby the fourth part is twisted. 3 is driven from the blocking position to the blocking release position,
In the shaft fixing step, when the bolt is screwed into the screw hole, the second part of the misassembly prevention tool is pushed out of the screw hole by the tip of the bolt, so that the misassembly prevention tool is removed from the yoke body. A method for manufacturing a joint structure of a universal joint and a shaft, wherein the joint structure is removed. 上記シャフト挿入工程では、シャフトの先端によって誤組付防止具の第３の部分が押されることにより、誤組付防止具が第２のタブのねじ孔の軸線を中心として回動されることを特徴とする請求項１記載の自在継手とシャフトとの結合構造を製造する方法。
In the shaft insertion step, when the third portion of the misassembly prevention tool is pushed by the tip of the shaft, the misassembly prevention tool is rotated about the axis of the screw hole of the second tab. The method for manufacturing a joint structure of a universal joint and a shaft according to claim 1 .
JP2006220024A 2006-08-11 2006-08-11 Method for manufacturing a joint structure between a universal joint and a shaft Expired - Fee Related JP4683297B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006220024A JP4683297B2 (en) 2006-08-11 2006-08-11 Method for manufacturing a joint structure between a universal joint and a shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006220024A JP4683297B2 (en) 2006-08-11 2006-08-11 Method for manufacturing a joint structure between a universal joint and a shaft

Publications (2)

Publication Number Publication Date
JP2008045611A JP2008045611A (en) 2008-02-28
JP4683297B2 true JP4683297B2 (en) 2011-05-18

Family

ID=39179547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006220024A Expired - Fee Related JP4683297B2 (en) 2006-08-11 2006-08-11 Method for manufacturing a joint structure between a universal joint and a shaft

Country Status (1)

Country Link
JP (1) JP4683297B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4938619B2 (en) * 2007-10-26 2012-05-23 日産自動車株式会社 Misassembly prevention tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011717A (en) * 1983-06-13 1985-01-22 ナカム Shaft position detecting apparatus in coupling element
JPH04113334U (en) * 1991-03-20 1992-10-02 日本精工株式会社 Coupling device for universal joint yoke and rotating shaft
JPH06221333A (en) * 1993-01-27 1994-08-09 Mazda Motor Corp Joint structure and method for fixing same
JP2001280361A (en) * 2000-03-28 2001-10-10 Koyo Seiko Co Ltd Connection structure of shaft and shaft coupling, and steering device using the same
JP2006226415A (en) * 2005-02-17 2006-08-31 Jtekt Corp Wrong attachment prevention means and universal joint including it

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011717A (en) * 1983-06-13 1985-01-22 ナカム Shaft position detecting apparatus in coupling element
JPH04113334U (en) * 1991-03-20 1992-10-02 日本精工株式会社 Coupling device for universal joint yoke and rotating shaft
JPH06221333A (en) * 1993-01-27 1994-08-09 Mazda Motor Corp Joint structure and method for fixing same
JP2001280361A (en) * 2000-03-28 2001-10-10 Koyo Seiko Co Ltd Connection structure of shaft and shaft coupling, and steering device using the same
JP2006226415A (en) * 2005-02-17 2006-08-31 Jtekt Corp Wrong attachment prevention means and universal joint including it

Also Published As

Publication number Publication date
JP2008045611A (en) 2008-02-28

Similar Documents

Publication Publication Date Title
JP4441600B2 (en) Misassembly prevention tool and universal joint including the same
JP5170520B2 (en) Misassembly prevention tool and universal joint including the same
JP5831672B2 (en) Steering device
JP4968114B2 (en) Universal joint
JP5613128B2 (en) Electric power steering device
JP4683297B2 (en) Method for manufacturing a joint structure between a universal joint and a shaft
JP6673308B2 (en) Torque transmission shaft for steering
JP2008132845A (en) Connecting structure of joint yoke and shaft in steering device
JP2014129073A (en) Steering device and positioning member
JP5682775B2 (en) Vehicle steering system
JP4938619B2 (en) Misassembly prevention tool
JP2003028153A (en) Electric power steering device
JP2009299776A (en) Worm reduction gear and electric power steering device
JP5163683B2 (en) Coupling device for joint yoke and rotating shaft and method for assembling the same
JP2009040223A (en) Steering device for vehicle
JP2008202742A (en) Yoke-shaft connection structure and steering device using the same
JP5093284B2 (en) Cross shaft type universal joint
JP4735444B2 (en) Joint part between shaft and universal joint yoke and method for manufacturing the same
JP4258245B2 (en) Steering device
JP2012107756A (en) Method of machining universal joint
JP2010084897A (en) Joint, and joining method of joint and shaft
JP6940005B2 (en) Torque detection device and its assembly method, electric power steering device
JP5223914B2 (en) Universal assembly misassembly prevention tool
JP4711217B2 (en) Steering gear box mounting structure
JP2007232004A (en) Joint structure of universal joint with shaft

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090721

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101013

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101021

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101214

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110113

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110126

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140218

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4683297

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees