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シート１の背凭シート３に回動自在に設けたアームレスト４の回動を摩擦抵抗でロックするロックスプリング３０のコイル部３１を、左右方向のシャフト７の外周に嵌合させ、該コイル部３１の一端は自由端３５に形成し、前記コイル部３１の他端は固定状態とし、前記自由端３５が継脱して前記前記ロックスプリング３０をロック状態とアンロック状態とに切り替える切替カム溝３８を設け、該切替カム溝３８は自由端３５をアンロック位置に保持するアンロック用カム面３６と該アンロック用カム面３６への係合を案内する案内カム面３７とを有して形成し、前記アンロック用カム面３６は、切替カム溝３８の前記アームレスト４の上方回動方向側の内周面に、前記シャフト７の軸心方向に対して外側に至るに従い低くなるように傾斜させて形成した車両用シートのアームレスト。A coil portion 31 of a lock spring 30 that locks the rotation of an armrest 4 provided on the dorsal seat 3 of the seat 1 with frictional resistance is fitted to the outer periphery of the shaft 7 in the left-right direction. One end of the coil portion 31 is formed in a free end 35, and the other end of the coil portion 31 is fixed, and a switching cam groove 38 for switching the lock spring 30 between a locked state and an unlocked state by the free end 35 being connected and disconnected. The switching cam groove 38 is provided with an unlocking cam surface 36 that holds the free end 35 in the unlocked position, and a guide cam surface 37 that guides the engagement with the unlocking cam surface 36. The unlocking cam surface 36 is inclined on the inner peripheral surface of the switching cam groove 38 on the upper rotation direction side of the armrest 4 so as to become lower toward the outer side with respect to the axial direction of the shaft 7. The formed sheet armrest of the vehicle Te.
シート１の背凭シート３の側部に固定の背凭ブラケット６に左右方向のシャフト７を固定し、該シャフト７にアームレスト４のアームレストフレーム１３の外面に固定したバネ取付用ブラケット１４を回転自在に挿通し、該バネ取付用ブラケット１４より外側に突き出た前記シャフト７の外周にロックスプリング３０のコイル部３１を嵌合させ、該コイル部３１の一端は自由端３５に形成し、前記コイル部３１の他端は前記バネ取付用ブラケット１４に固定した固定側端部３３に形成し、前記バネ取付用ブラケット１４の前縁には外側に屈曲させた屈曲板部３９を設け、該屈曲板部３９には、前記ロックスプリング３０の自由端３５をアンロック位置に保持するアンロック用カム面３６と該アンロック用カム面３６への係合を案内する案内カム面３７とを有し外側を開口させた切替カム溝３８を形成し、前記アンロック用カム面３６は、切替カム溝３８の前記アームレスト４の上方回動方向側の内周面に、前記シャフト７の軸心方向に対して外側に至るに従い低くなるように傾斜させて形成した車両用シートのアームレスト。
A horizontal shaft 7 is fixed to a fixed back bracket 6 on the side of the back seat 3 of the seat 1, and a spring mounting bracket 14 fixed to the outer surface of the armrest frame 13 of the armrest 4 is freely rotatable on the shaft 7. The coil portion 31 of the lock spring 30 is fitted to the outer periphery of the shaft 7 protruding outward from the spring mounting bracket 14, and one end of the coil portion 31 is formed at the free end 35, and the coil portion The other end of 31 is formed at a fixed side end 33 fixed to the spring mounting bracket 14, and a bent plate portion 39 bent outward is provided at the front edge of the spring mounting bracket 14. 39, an unlock cam surface 36 that holds the free end 35 of the lock spring 30 in the unlock position, and a guide cam that guides the engagement with the unlock cam surface 36. A switching cam groove 38 having a surface 37 and an outer opening is formed, and the unlocking cam surface 36 is formed on the inner peripheral surface of the switching cam groove 38 on the upper rotation direction side of the armrest 4. 7 is an armrest for a vehicle seat that is formed so as to be inclined downward toward the outer side with respect to the axial direction of 7.
請求項１または請求項２において、前記案内カム面３７は、切替カム溝３８の前記アームレスト４の下方回動方向側の内周面に、外側に至るに従い高くなるように傾斜させて形成し、アンロック用カム面３６の外端部Ｅと案内カム面３７の先端部Ｆとの間には自由端３５が通り抜け可能な隙間４１を設けると共に、前記案内カム面３７の先端部Ｆは、前記アンロック用カム面３６の外端部Ｅより外側で、且つ、上方に位置するように構成した車両用シートのアームレスト。
In Claim 1 or Claim 2 , the guide cam surface 37 is formed on the inner peripheral surface of the switching cam groove 38 on the lower rotation direction side of the armrest 4 so as to be inclined so as to increase toward the outside. A clearance 41 through which the free end 35 can pass is provided between the outer end E of the unlocking cam surface 36 and the front end F of the guide cam surface 37, and the front end F of the guide cam surface 37 is An armrest for a vehicle seat configured to be positioned outside and above the outer end E of the unlocking cam surface.
請求項１または請求項２または請求項３において、前記シャフト７の外端に、前記切替カム溝３８に自由端３５を嵌合させるアンロック用当接部４７および前記切替カム溝３８に嵌合している自由端３５を離脱させて自由状態に復帰させるアンロック解除部５０の夫々を設けた当接部材４５を位置不動に当接させ、前記シャフト７の内端に形成した係合突起２０を前記背凭ブラケット６の係合孔５８に係合させ、前記当接部材４５の外側から止着部材５９により前記シャフト７および前記当接部材４５を前記背凭ブラケット６に固定するように構成した車両用シートのアームレスト。
4. The unlocking contact portion 47 for fitting the free end 35 into the switching cam groove 38 and the switching cam groove 38 at the outer end of the shaft 7 according to claim 1 or claim 2 or claim 3 . The engaging protrusions 20 formed on the inner end of the shaft 7 are brought into abutment with the abutting members 45 provided with the unlocking portions 50 for releasing the free end 35 and returning to the free state. Is engaged with the engagement hole 58 of the dorsal bracket 6, and the shaft 7 and the abutting member 45 are fixed to the dorsal bracket 6 by the fastening member 59 from the outside of the abutting member 45. Armrests for used vehicle seats.
JP2004209477A2004-07-162004-07-16
Armrests for vehicle seats
Expired - LifetimeJP4530208B2
(en)