To obtain a headrest bush that can prevent occurence of abnormal noise and can be easily produced.SOLUTION: A headrest bush 30R includes: a holder 32 formed with a stay insertion hole 38R into which a stay of a headrest is inserted in an axial direction, and formed with a lock accommodating hole 40 opened to one side in a stay orthogonal direction orthogonal to the axial direction and intersecting with the stay insertion hole 38R; and a lock 42 inserted into the lock accommodating hole 40 and biased in the stay orthogonal direction to be engaged with the stay. The lock accommodating hole 40 is formed in a tapered shape expanding toward an opening side thereof in the axial direction. The lock 42 includes a near side protrusion 48 protruding at the near side of the lock accommodating hole 40 toward one side in the axial direction, and a dimension in the axial direction is set to be larger at the near side of the lock accommodating hole 40 than at the far side of the lock accommodating hole 40.SELECTED DRAWING: Figure 4

    【課題】異音の発生を防止でき且つ製造が容易なヘッドレストブッシュを得る。【解決手段】ヘッドレストブッシュ30Rは、ヘッドレストのステーが軸方向に挿入されるステー挿入孔38Rが形成されると共に、前記軸方向と直交するステー直交方向の一方側に開口し且つステー挿入孔38Rと交差するロック収容孔40が形成されるホルダ32と、ロック収容孔40に挿入され、ステー直交方向に付勢されてステーと係合するロック42とを備えている。ロック収容孔40は、その開口側へ向かって前記軸方向に拡大するテーパ状に形成される。ロック42は、ロック収容孔40の手前側で前記軸方向の一方側に突出した手前側凸部48を有し、前記軸方向の寸法がロック収容孔40の手前側でロック収容孔40の奥側よりも大きく設定される。【選択図】図4


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    Title :

    HEADREST BUSH AND HEADREST DEVICE


    Additional title:

    ヘッドレストブッシュ及びヘッドレスト装置


    Contributors:

    Publication date :

    2023-03-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / A47C Stühle , CHAIRS



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