JP2023118221A - seat slide device - Google Patents

Abstract

To arrange a biasing member in a manner that prevents the biasing member from affecting an operating range of an operation member and a lever member and achieve simplification of a shape of the biasing member.SOLUTION: A seat slide device 101 includes a lever member 131, a lock member 117, a rear biasing member 136, an operation member 133, and a front biasing member 135. The lever member 131 has: front upper support parts respectively provided at upper ends of front ends of a pair of left and right side walls 147 and extending inward in a lateral direction; and a front lower support part provided at lower ends of the front ends of the pair of left and right side walls 147 and extending inward in the lateral direction. A cylindrical portion of the operation member 133 is inserted into a front end of the lever member 131 having a substantially square shaped cross section. A front end of the front biasing member 135 biases the operation member 133 upward to press the operation member 133 against the front upper support parts. The front biasing member 135 has removal prevention parts 135b which are folded downward at its front end to be engaged with an engagement hole 133a provided at the operation member 133.SELECTED DRAWING: Figure 14

Description

本開示は、車両用のシートに用いられるシートスライド装置に関する。 The present disclosure relates to a seat slide device used for a vehicle seat.

車両用のシートスライド装置は、車体に固定したロアレールに対し、シートに固定したアッパレールをスライド移動自在に設け、アッパレールに取り付けたロック部材のロック歯（ロック部）を、ロアレールのロック溝（被ロック部）に係合させてロック状態となる。当該シートスライド装置は、ロック部をロック解除方向に動作させるレバー部材を備え、レバー部材は、その回動中心よりも前側の部分が付勢部材により上方に付勢される。また、レバー部材の前端部には操作部材が連結されており、操作部材を上方に持ち上げることでレバー部材が操作部材と共に回動するように構成されている。 A seat slide device for a vehicle is provided with an upper rail fixed to a seat so as to be slidable with respect to a lower rail fixed to a vehicle body. part) to be locked. The seat slide device includes a lever member that operates the lock portion in the unlocking direction, and the portion of the lever member on the front side of the rotation center thereof is urged upward by an urging member. An operation member is connected to the front end of the lever member, and is configured to rotate together with the operation member when the operation member is lifted upward.

特許文献１では、アッパレールに左右方向の軸線周りに回動可能にレバー部材が支持され、このレバー部材の後端部には、ロアレールに設けた長手方向に連続するロック溝に係脱するロック部が配置されている。また、レバー部材の前端部には、操作部材が連結され、操作ハンドルを上方に持ち上げることでレバー部材が一体的に上方に回動するように構成されている。さらに、操作部材とレバー部材との間には、レバー部材に対して操作部材の前後方向の移動を阻止する付勢部材が設けられている。 In Patent Document 1, a lever member is supported by the upper rail so as to be rotatable about an axis in the left-right direction. are placed. An operation member is connected to the front end portion of the lever member, and the lever member is integrally rotated upward when the operation handle is lifted upward. Further, an urging member is provided between the operating member and the lever member to prevent the operating member from moving forward and backward with respect to the lever member.

その一方、特許文献２には、ロックプレート（レバー部材）の前端に設けた矢尻部をスライドレバー（操作部材）の内部に差し込む構造が開示されている。特許文献２では、操作部材の内面とレバー部材の矢尻部との間に筒状のバネを設けて操作部材の抜け止めをしている。 On the other hand, Patent Document 2 discloses a structure in which an arrowhead portion provided at the front end of a lock plate (lever member) is inserted into the inside of a slide lever (operating member). In Patent Document 2, a cylindrical spring is provided between the inner surface of the operating member and the arrowhead portion of the lever member to prevent the operating member from coming off.

特開２０１３－１６６４３４号公報JP 2013-166434 A 特開２００１－２１９７６８号公報Japanese Patent Application Laid-Open No. 2001-219768

しかし、特許文献１では、付勢部材が操作部材の下方に配置されるため、操作部材の作動できる動作範囲（角度）が小さくなる。一方、特許文献２では、矢尻部を操作部材の内部に差し込むため、２つの縦壁を重ねるように形成されており、しかも操作部材の直径の増加は重量増加に大きく影響するため、矢尻部が小さく十分な強度が得られない。また、特許文献２の矢尻部の強度を確保するように断面を例えば四角形状とした場合、その外側にバネと操作部材が配置されるため、操作部材及びレバー部材が上下に大きくなることで作動できる動作範囲（角度）が小さくなる。 However, in Patent Document 1, since the biasing member is arranged below the operation member, the operation range (angle) in which the operation member can operate is reduced. On the other hand, in Patent Document 2, since the arrowhead portion is inserted into the inside of the operation member, the two vertical walls are formed so as to overlap each other. Small and not strong enough. In addition, if the cross section of Patent Document 2 is, for example, square so as to ensure the strength of the arrowhead portion, the spring and the operating member are arranged on the outer side, so the operating member and the lever member are enlarged vertically to operate. The possible operating range (angle) becomes smaller.

そこで、本発明は、付勢部材を操作部材及びレバー部材の動作範囲に影響しないように配置すると共に、付勢部材の形状の簡素化を図ることを目的としている。 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to arrange an urging member so as not to affect the operating range of an operation member and a lever member, and to simplify the shape of the urging member.

本発明に係わるシートスライド装置は、車両前後方向に沿って延設されるロアレールと、ロアレールの長手方向に沿って相対移動するアッパレールと、アッパレールに対して左右方向の軸周りに回動可能に支持されるレバー部材と、レバー部材の後端部に設けられ、ロアレールに形成された被ロック部に係合するロック位置と被ロック部から外れたロック解除位置との間で移動可能なロック部を備えたロック部材と、ロック部をロック位置方向に付勢する後側付勢部材と、レバー部材の前端部に接続される操作部材と、を備える。レバー部材は、アッパレールの長手方向に沿って延びる左右一対の側壁と、左右一対の側壁の前端部の上端部に設けられ、左右方向内側に延出する前側上部支持部と、左右一対の側壁の前端部の下端部に設けられ、左右方向内側に延出する前側下部支持部と、を有する。左右一対の側壁と前側上部支持部と前側下部支持部とにより、レバー部材の前端部が断面略四角形状を有して、この前端部の内方に操作部材の筒状部分が挿入される。棒状の部材から形成され、支持部がアッパレールに設けた係止部に係止されると共に、前端部が操作部材の筒状部分の内部に挿入される前側付勢部材が設けられる。前側付勢部材の前端部は、操作部材を上方に付勢して操作部材を前側上部支持部に対して押し付けると共に、前側付勢部材は、その前端部において下方に折り返されて操作部材に設けた係止孔に係合する抜止部を有する。 A seat slide device according to the present invention includes a lower rail extending along the vehicle front-rear direction, an upper rail relatively moving along the longitudinal direction of the lower rail, and a seat slide device supported rotatably about an axis in the left-right direction with respect to the upper rail. and a locking portion provided at the rear end of the lever member and movable between a locking position engaging with a locked portion formed on the lower rail and an unlocking position disengaged from the locked portion. a rear-side biasing member biasing the lock portion toward the locked position; and an operation member connected to the front end portion of the lever member. The lever member includes a pair of left and right side walls extending along the longitudinal direction of the upper rail, a front upper support portion provided at the upper ends of the front ends of the pair of left and right side walls and extending inward in the left and right direction, and a pair of left and right side walls. a front lower support portion provided at the lower end portion of the front end portion and extending inward in the left-right direction. The pair of left and right side walls, the front upper support portion, and the front lower support portion form a front end portion of the lever member that has a substantially square cross-sectional shape, and the tubular portion of the operating member is inserted inside the front end portion. A front side biasing member is provided which is formed of a rod-shaped member and has a support portion that is locked by a locking portion provided on the upper rail and a front end portion of which is inserted into the tubular portion of the operating member. The front end portion of the front biasing member biases the operating member upward to press the operating member against the front upper support portion. It also has a retaining portion that engages with the locking hole.

本発明によれば、付勢部材を操作部材及びレバー部材の動作範囲に影響しないように配置すると共に、付勢部材の形状の簡素化を図ることができる。 According to the present invention, it is possible to arrange the biasing member so as not to affect the motion ranges of the operation member and the lever member, and to simplify the shape of the biasing member.

本発明の一実施形態に係わるシートスライド装置の分解斜視図である。1 is an exploded perspective view of a seat slide device according to one embodiment of the present invention; FIG. ロアレールにアッパレールを組み付けた状態をレバー部材及び付勢部材も含めて示す斜視図である。FIG. 4 is a perspective view showing a state in which an upper rail is assembled to a lower rail, including a lever member and a biasing member; アッパレールとロアレールとの間に配置される下方ガイドボール及び上方ガイドボールを含むシートスライド装置の断面図である。FIG. 4 is a cross-sectional view of a seat slide device including lower guide balls and upper guide balls arranged between an upper rail and a lower rail; ロアレールの斜視図である。It is a perspective view of a lower rail. アッパレールの斜視図である。4 is a perspective view of an upper rail; FIG. ロック部材の斜視図である。It is a perspective view of a locking member. レバー部材の斜視図である。It is a perspective view of a lever member. 付勢部材の斜視図である。FIG. 4 is a perspective view of a biasing member; レバー部材に付勢部材を組み付けた状態を示す斜視図である。FIG. 4 is a perspective view showing a state in which a biasing member is attached to a lever member; レバー部材及び付勢部材を後方から見た背面図である。It is the back view which looked at the lever member and the biasing member from the back. 操作部材の一部を下方から見た斜視図である。It is the perspective view which looked at a part of operation member from the downward direction. 操作部材の後端部を後方から見た背面図である。It is the back view which looked at the rear-end part of the operation member from the back. レバー部材及び付勢部材を上方から見た平面図である。FIG. 4 is a top plan view of a lever member and a biasing member; 一方の軸受部を示すシートスライド装置の要部拡大の側断面図である。FIG. 3 is an enlarged side cross-sectional view of a main portion of the seat slide device showing one bearing portion; 他方の軸受部を示すシートスライド装置の要部拡大の側断面図である。FIG. 3 is an enlarged side cross-sectional view of the main part of the seat slide device showing the other bearing portion; シートスライド装置の要部拡大の側断面図である。FIG. 2 is an enlarged side cross-sectional view of a main part of the seat slide device; 操作部材をロック解除方向に操作した状態を示すシートスライド装置の要部拡大の側断面図である。FIG. 4 is an enlarged sectional side view of a main part of the seat slide device showing a state in which the operating member is operated in the unlocking direction; 操作部材に反ロック解除方向への負荷が作用した状態を示すシートスライド装置の要部拡大の側断面図である。FIG. 4 is an enlarged side cross-sectional view of a main portion of the seat slide device showing a state in which a load acts on the operation member in the anti-lock release direction;

以下、本発明の実施の形態を図面に基づき説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described based on the drawings.

図１～図３に示す本発明の一実施形態に係わるシートスライド装置１０１は車両用シートの前後方向への調節を手動で行う手動式である。シートスライド装置１０１は、車両の床面上に設置され、車両前後方向に沿って延設されるロアレール１０３と、シート座部（図示せず）の裏面に設置され、ロアレール１０３の長手方向に沿って、ロアレール１０３内を相対移動自在に組み付けられるアッパレール１０５とを備えている。ロアレール１０３とアッパレール１０５とでレール体１０６を構成しており、レール体１０６は左右一対設けられている。なお、以下の説明（他の実施形態も含む）で、「前」は図１中で左側の車両前方ＦＲ側で、「後」は図１中で右側の車両後方ＲＲ側であり、「左右」は車両後方から車両前方を見たときの左右方向である。 A seat slide device 101 according to an embodiment of the present invention shown in FIGS. 1 to 3 is of a manual type for manually adjusting a vehicle seat in the longitudinal direction. The seat slide device 101 includes a lower rail 103 that is installed on the floor surface of the vehicle and extends along the longitudinal direction of the vehicle, and a lower rail 103 that is installed on the back surface of a seat (not shown) and extends along the longitudinal direction of the lower rail 103. and an upper rail 105 which is assembled so as to be relatively movable within the lower rail 103 . The lower rail 103 and the upper rail 105 constitute a rail body 106, and a pair of left and right rail bodies 106 are provided. In the following description (including other embodiments), "front" means the vehicle front FR side on the left side in FIG. 1, "rear" means the vehicle rear RR side on the right side in FIG. ' is the left-right direction when the front of the vehicle is viewed from the rear of the vehicle.

ロアレール１０３は、図３に示すように、車両前後方向に延びる長方形の板形状を具備するロア底壁１０３ａを備えている。ロア底壁１０３ａの車幅方向の両端縁から、左右一対のロア外側壁１０３ｂが、ロア底壁１０３ａから上方に向けて若干外側に傾斜するように立ち上がっている。左右一対の両ロア外側壁１０３ｂの下端とロア底壁１０３ａとの間にはロア斜壁１０３ｃが形成されている。左右一対の両ロア外側壁１０３ｂの上端縁から、互いに近づく方向にロア底壁１０３ａと平行に延在する左右一対のロア上壁１０３ｄが設けられている。 As shown in FIG. 3, the lower rail 103 has a lower bottom wall 103a having a rectangular plate shape extending in the longitudinal direction of the vehicle. A pair of left and right lower outer walls 103b rise from both edges of the lower bottom wall 103a in the vehicle width direction so as to be slightly outwardly inclined upward from the lower bottom wall 103a. A lower oblique wall 103c is formed between the lower ends of the pair of left and right lower outer walls 103b and the lower bottom wall 103a. A pair of left and right lower upper walls 103d extend parallel to the lower bottom wall 103a in a direction toward each other from upper edges of the pair of left and right lower outer walls 103b.

左右一対のロア上壁１０３ｄの内端縁からロア底壁１０３ａに向かって下方に垂下する、左右一対のロア内側壁１０３ｅが設けられている。なお、互いに平行な状態で対向するロア内側壁１０３ｅ間の間隔は、ロアレール１０３内に収容されるアッパレール１０５が移動可能なように設定されている。 A pair of left and right lower inner walls 103e are provided that extend downward from the inner edges of the pair of left and right lower upper walls 103d toward the lower bottom wall 103a. The interval between the lower inner walls 103e facing each other in parallel is set so that the upper rail 105 accommodated in the lower rail 103 can move.

アッパレール１０５は、車体前後方向に延びる長方形の板形状を具備するアッパ天壁１０５ａを備えている。アッパ天壁１０５ａの車幅方向の両端縁から、左右一対のアッパ側壁１０５ｂが下方に向けて垂下している。左右両アッパ側壁１０５ｂの下端縁から、アッパ下方斜壁１０５ｃがそれぞれの外側斜め上方に向けて立ち上がっている。左右一対の両アッパ下方斜壁１０５ｃの上端縁から、屈曲部１０５ｄを介してアッパ上方斜壁１０５ｅがロア上壁１０３ｄに向かって斜め上方に向けて立ち上がっている。 The upper rail 105 has an upper ceiling wall 105a having a rectangular plate shape extending in the longitudinal direction of the vehicle body. A pair of left and right upper side walls 105b hang downward from both edges of the upper ceiling wall 105a in the vehicle width direction. From the lower edges of the right and left upper side walls 105b, upper lower slanted walls 105c rise obliquely upward and outward. From the upper edges of the pair of right and left upper lower inclined walls 105c, upper upper inclined walls 105e rise obliquely upward toward the lower upper wall 103d via bent portions 105d.

ロアレール１０３のロア底壁１０３ａとロア斜壁１０３ｃとの間の下方円弧部１０３ｆと、アッパレール１０５のアッパ下方斜壁１０５ｃとの間に、下方ガイドボール１０７を転動自在に配置している。ロアレール１０３のロア外側壁１０３ｂとロア上壁１０３ｄとの間の上方円弧部１０３ｇと、アッパレール１０５のアッパ上方斜壁１０５ｅとの間に上方ガイドボール１０９を転動自在に配置している。 Between the lower arc portion 103f between the lower bottom wall 103a and the lower slanted wall 103c of the lower rail 103 and the upper lower slanted wall 105c of the upper rail 105, a lower guide ball 107 is rotatably arranged. Between the upper arc portion 103g between the lower outer wall 103b and the lower upper wall 103d of the lower rail 103 and the upper upper oblique wall 105e of the upper rail 105, an upper guide ball 109 is arranged so as to be free to roll.

下方ガイドボール１０７及び上方ガイドボール１０９は、図１に示すように、図３では省略しているボールリテーナ１１１に回転自在に支持されている。ボールリテーナ１１１は、下方ガイドボール１０７及び上方ガイドボール１０９を２個ずつ、計４個を支持している。これら下方ガイドボール１０７及び上方ガイドボール１０９を支持した状態のボールリテーナ１１１は、ロア外側壁１０３ｂ、ロア斜壁１０３ｃ、ロア上壁１０３ｄ及びロア内側壁１０３ｅに囲まれた収容部１１３（図３）内に、前後２カ所配置され、左右一対のレール体１０６に対して計４カ所配置される。 As shown in FIG. 1, the lower guide ball 107 and the upper guide ball 109 are rotatably supported by a ball retainer 111 (not shown in FIG. 3). The ball retainer 111 supports two each of the lower guide balls 107 and the upper guide balls 109, totaling four. The ball retainer 111, which supports the lower guide balls 107 and the upper guide balls 109, has a housing portion 113 (FIG. 3) surrounded by the lower outer wall 103b, the lower oblique wall 103c, the lower upper wall 103d, and the lower inner wall 103e. Inside, the front and rear are arranged at two locations, and a total of four locations are arranged with respect to the pair of left and right rail bodies 106 .

図１４に示すように、レール体１０６を組み立てた状態において、アッパレール１０５の前方側におけるアッパ側壁１０５ｂには、軸部材１１５によってレバー部材１３１が回動可能に支持される。軸部材１１５は、アッパレール１０５の左右両アッパ側壁１０５ｂに跨るように左右両アッパ側壁１０５ｂの間にかけ渡されている。また、レバー部材１３１の回動中心（軸部材１１５）よりも後方側の端部には、ロック部材１１７が設けられる。その一方、レバー部材１３１の回動中心（軸部材１１５）よりも前方側の端部には、操作部材１３３が連結される。 As shown in FIG. 14 , in the assembled state of the rail body 106 , a lever member 131 is rotatably supported by the shaft member 115 on the upper side wall 105 b on the front side of the upper rail 105 . The shaft member 115 spans between the left and right upper side walls 105b of the upper rail 105 so as to straddle the left and right upper side walls 105b. A lock member 117 is provided at the end of the lever member 131 on the rear side of the rotation center (shaft member 115). On the other hand, the operation member 133 is connected to the end of the lever member 131 on the front side of the rotation center (shaft member 115).

図６に示すように、ロック部材１１７は、凸形状の平板であり、左右両側縁部付近に前後方向に沿って二つずつの矩形の孔１２５ａが形成されている。ところで、ロック部材１１７における各孔１２５ａの前後方向に隣接する部分は、左右両側方に突出するロック部としてのロック歯１２５ｂを構成する。ロック歯１２５ｂは、左右両側にそれぞれ三箇所形成される。左右両側のそれぞれ三箇所のロック歯１２５ｂは、先端側が、前後方向に延びる接続部１２５ｃで接続された構成となる。 As shown in FIG. 6, the lock member 117 is a flat plate having a convex shape, and two rectangular holes 125a are formed in the vicinity of the left and right side edges along the front-rear direction. By the way, portions of the lock member 117 adjacent to the holes 125a in the front-rear direction constitute lock teeth 125b as lock portions that protrude in the left and right sides. Three lock teeth 125b are formed on each of the left and right sides. The three locking teeth 125b on the left and right sides are connected at their tip ends by connecting portions 125c extending in the front-rear direction.

本実施形態では、車幅方向右側の三箇所のロック歯１２５ｂのうち、最も前方側のロック歯１２５ｂは、他のロック歯１２５ｂよりも前後方向の幅が大きく形成された主ロック歯１２５ｍを構成する。主ロック歯１２５ｍは、左右の複数（６箇所）のロック歯のうちの１つのみである。 In the present embodiment, of the three lock teeth 125b on the right side in the vehicle width direction, the frontmost lock tooth 125b constitutes a main lock tooth 125m formed with a larger longitudinal width than the other lock teeth 125b. do. The main lock tooth 125m is only one of a plurality of (six) left and right lock teeth.

また、ロック部材１１７の左右方向の中央部には、前側から順に、前側固定孔部１１７ａ、ロック部材１１７から上方へ突出する上方突出部１１７ｂ、ロック部材１１７から下方へ突出する下方突出部１１７ｃ、後側固定孔部１１７ｄが設けられている。上方突出部１１７ｂは、ロック部材１１７の一部を下方へ突出させることにより形成され、下方突出部１１７ｃは、ロック部材１１７から下方に向けて切起こしにより形成される。 In addition, in the central portion of the lock member 117 in the left-right direction, there are, in order from the front side, a front fixing hole portion 117a, an upward projection portion 117b projecting upward from the lock member 117, a downward projection portion 117c projecting downward from the lock member 117, A rear fixing hole portion 117d is provided. The upward projecting portion 117b is formed by projecting a part of the locking member 117 downward, and the downward projecting portion 117c is formed by cutting and raising the locking member 117 downward.

図５に示すように、アッパレール１０５の前後方向のほぼ中央付近において、左右両アッパ側壁１０５ｂから両アッパ下方斜壁１０５ｃにわたり、ロック歯受入凹部１２９を、前後方向に沿って左右それぞれ三箇所形成している。レール体１０６を組み立てた状態において、三箇所のロック歯受入凹部１２９にロック部材１１７の三つのロック歯１２５ｂが下方から入り込んでいる。このとき、ロック歯受入凹部１２９相互間の突起１２６が、ロック部材１１７の孔１２５ａに挿入される。その際、ロック部材１１７の接続部１２５ｃ付近が、アッパレール１０５に干渉するのを避けるために、ロック歯受入凹部１２９の下部に連続する開口部１２８、アッパ上方斜壁１０５ｅの上部に形成した切欠開口１３０を、アッパレール１０５の左右両側に設けてある。 As shown in FIG. 5, near the center of the upper rail 105 in the front-rear direction, three locking tooth receiving recesses 129 are formed along the front-rear direction from the left and right upper side walls 105b to the upper lower oblique walls 105c. ing. When the rail body 106 is assembled, the three lock teeth 125b of the lock member 117 are inserted into the three lock tooth receiving recesses 129 from below. At this time, the protrusions 126 between the lock tooth receiving recesses 129 are inserted into the holes 125 a of the lock member 117 . At this time, in order to prevent the vicinity of the connection portion 125c of the lock member 117 from interfering with the upper rail 105, an opening 128 continuous to the lower portion of the lock tooth receiving recess 129 and a cutout opening formed in the upper portion of the upper upper inclined wall 105e 130 are provided on both left and right sides of the upper rail 105 .

また、アッパレール１０５の左右両アッパ側壁１０５ｂには、軸部材１１５が挿通される軸受孔１０５ｆと、後述する付勢部材１３２を係止する係止部１０５ｇとが設けられている。この係止部１０５ｇは、アッパ側壁１０５ｂにおいてレバー部材１３１の回動中心（軸部材１１５）よりも後方側に設けられている。また、係止部１０５ｇは、アッパ側壁１０５ｂから内側に向けて切起こして形成されたものである。 Further, the left and right upper side walls 105b of the upper rail 105 are provided with a bearing hole 105f through which the shaft member 115 is inserted, and an engaging portion 105g for engaging an urging member 132, which will be described later. The engaging portion 105g is provided on the upper side wall 105b on the rear side of the center of rotation of the lever member 131 (the shaft member 115). The locking portion 105g is formed by cutting and raising the upper side wall 105b toward the inside.

一方、図４に示すように、ロアレール１０３の左右のロア内側壁１０３ｅの前部付近及び後部付近を除く位置には、被ロック部としてのロック溝１２７を前後方向に沿って複数設けている。ロック溝１２７にロック部材１１７のロック歯１２５ｂが、ロック歯受入凹部１２９に位置している状態で下方から入り込むことで、ロック部材１１７がロアレール１０３に対してロックした状態となる。これにより、ロック部材１１７を取り付けてあるアッパレール１０５は、ロアレール１０３に対して前後方向の移動が規制される。 On the other hand, as shown in FIG. 4, a plurality of lock grooves 127 as locked portions are provided along the front-rear direction at positions other than the vicinity of the front portion and the vicinity of the rear portion of the left and right lower inner walls 103e of the lower rail 103. As shown in FIG. Lock tooth 125 b of lock member 117 enters lock groove 127 from below while it is positioned in lock tooth receiving recess 129 , so that lock member 117 is locked with respect to lower rail 103 . As a result, the upper rail 105 to which the lock member 117 is attached is restricted from moving forward and backward with respect to the lower rail 103 .

ロック部材１１７は、アッパレール１０５に取り付けた状態で、付勢部材１３２が上方に弾性力を付与することで、ロック歯１２５ｂがロック溝１２７に入り込んだ状態が維持される。この状態から、図１に示す操作部材１３３をロック解除方向（上方）に向けて操作することで、レバー部材１３１を介してロック部材１１７が下方に押され、ロックが解除される。操作部材１３３は、アッパレール１０５内に前部から挿入されてレバー部材１３１と連動可能に配置される。 When the lock member 117 is attached to the upper rail 105 , the biasing member 132 applies an upward elastic force to keep the lock tooth 125 b in the lock groove 127 . From this state, by operating the operation member 133 shown in FIG. 1 in the unlocking direction (upward), the lock member 117 is pushed downward via the lever member 131 to unlock. The operating member 133 is inserted into the upper rail 105 from the front and arranged so as to be interlockable with the lever member 131 .

図７に示すように、レバー部材１３１は、アッパレール１０５の長手方向に沿って延びると共に左右方向に所定の間隔を有して対向する左右の側壁１４７と、左右の側壁１４７の前方側の端部を除く領域において、左右の側壁１４７の下端相互をつなぐ下壁１３４とを備えている。 As shown in FIG. 7, the lever member 131 includes left and right side walls 147 extending along the longitudinal direction of the upper rail 105 and opposed to each other at a predetermined interval in the left and right direction. A lower wall 134 connecting the lower ends of the left and right side walls 147 is provided in the region except for the .

レバー部材１３１の前後方向の中間位置より前方側の側壁１４７の上側端部には、軸受部としての凹溝１４７ａが左右一対に形成されている。左右一対の凹溝１４７ａのうち、右側の凹溝１４７ａの底面は、軸部材１１５の外径よりも僅かに大きい半径を有する半円形状の円弧面として形成され（図１３Ａ参照）、左側の凹溝１４７ａの底面は、車両前後方向に延びる平面として形成される（図１３Ｂ参照）。凹溝１４７ａは軸部材１１５に下方から係合し、凹溝１４７ａが軸部材１１５に係合した状態を維持するようにレバー部材１３１が前端部と後端部とでそれぞれ上方に付勢されて、左右一対の凹溝１４７ａの底面はそれぞれ、軸部材１１５に上下方向の１点で接触することになる。ここで、前述の円弧面の半径は、ばらつきにより、軸部材１１５との係合が圧入とならない程度に、軸部材１１５の外径よりも僅かに大きく設定する。 A pair of left and right concave grooves 147a as bearing portions are formed in the upper end portion of the side wall 147 on the front side of the intermediate position of the lever member 131 in the front-rear direction. Of the pair of left and right grooves 147a, the bottom surface of the right groove 147a is formed as a semicircular arc surface having a radius slightly larger than the outer diameter of the shaft member 115 (see FIG. 13A). The bottom surface of the groove 147a is formed as a plane extending in the vehicle front-rear direction (see FIG. 13B). The recessed groove 147a is engaged with the shaft member 115 from below, and the lever member 131 is biased upward at the front end and the rear end so that the recessed groove 147a remains engaged with the shaft member 115. , the bottom surfaces of the pair of left and right recessed grooves 147a respectively contact the shaft member 115 at one point in the vertical direction. Here, the radius of the arc surface described above is set slightly larger than the outer diameter of the shaft member 115 to the extent that the engagement with the shaft member 115 does not result in press-fitting due to variations.

図示はしないが、他の実施形態では、左右一対の軸受部のうち、一方の軸受部が丸孔として形成され、他方の軸受部が、車両前後方向に延びる長孔として形成されてもよい。 Although not shown, in another embodiment, one of the pair of left and right bearings may be formed as a round hole, and the other bearing may be formed as an elongated hole extending in the longitudinal direction of the vehicle.

また、レバー部材１３１の後端部の下壁１３４には、前側から順に、下壁１３４から下方へ突出する前側突起部１３４ａ、位置決め孔部１３４ｂ、下壁１３４から下方へ突出する後側突起部１３４ｃが設けられている。前側突起部１３４ａ及び後側突起部１３４ｃはそれぞれ、下壁１３４から下方に向けて切起こしにより形成される。 The lower wall 134 of the rear end portion of the lever member 131 has, in order from the front side, a front protrusion 134a protruding downward from the lower wall 134, a positioning hole 134b, and a rear protrusion protruding downward from the lower wall 134. 134c is provided. The front protrusion 134a and the rear protrusion 134c are formed by cutting and raising the lower wall 134 downward.

レバー部材１３１の前側突起部１３４ａ及び後側突起部１３４ｃはそれぞれ、ロック部材１１７の前側固定孔部１１７ａ及び後側固定孔部１１７ｄに挿入され、ロック部材１１７の上方突出部１１７ｂが、レバー部材１３１の位置決め孔部１３４ｂに圧入により挿入される。この状態で、前側突起部１３４ａ及び後側突起部１３４ｃをそれぞれかしめることにより、ロック部材１１７がレバー部材１３１の後端部に固定される（図９及び図１０参照）。 The front protrusion 134a and the rear protrusion 134c of the lever member 131 are inserted into the front fixing hole 117a and the rear fixing hole 117d of the lock member 117, respectively, and the upward protrusion 117b of the lock member 117 is inserted into the lever member 131. is inserted by press-fitting into the positioning hole 134b. In this state, the lock member 117 is fixed to the rear end of the lever member 131 by crimping the front projection 134a and the rear projection 134c (see FIGS. 9 and 10).

レバー部材１３１の前端部の下端部は、対向する反対側の下端部に向けて左右方向に延出する前側下部支持部としての前部下壁１４７ｂにより相互につながっている。前部下壁１４７ｂの上面は、前側下部支持面１４７ｃを構成している。両側壁１４７の前端部の上端部には、両側壁１４７から互いに対向する反対側に向けて屈曲するようにして左右方向に延出する前側上部支持部としての前側上部突起１５７が形成されている。左右の前側上部突起１５７の先端相互は互いに離間していて相互間には隙間が形成されている。前側上部突起１５７の下面は、前側上部支持面１５７ａを構成している。 The lower ends of the front ends of the lever members 131 are connected to each other by a front lower wall 147b as a front lower support portion extending in the left-right direction toward the opposite lower end. The upper surface of the front lower wall 147b forms a front lower support surface 147c. Front upper projections 157 are formed at the upper ends of the front ends of the side walls 147 and extend in the left-right direction so as to bend from the side walls 147 to opposite sides facing each other. . The tips of the left and right front upper protrusions 157 are separated from each other to form a gap therebetween. A lower surface of the front upper projection 157 constitutes a front upper support surface 157a.

前側上部突起１５７の後方で且つ凹溝１４７ａの前方となる両側壁１４７の上部には、両側壁１４７から互いに対向する反対側に向けて屈曲するようにして左右方向に延出する後側上部支持部としての後側上部突起１５８が形成されている。後側上部突起１５８の下面は、後側上部支持面１５８ａを構成している。すなわち、レバー部材１３１の前端部には、操作部材１３３の後端部の上面１６９ｂ１に対向する一対の上部支持面（前側上部支持面１５７ａ、後側上部支持面１５８ａ）が車両前後方向に間隔をおいて設けられている。さらに、レバー部材１３１の前端部には、操作部材１３３の後端部の下面１６９ｂ３に対向する前側下部支持面１４７ｃが前側上部支持面１５７ａの下方に位置させて設けられている。 At the upper part of both side walls 147 behind the front upper protrusion 157 and in front of the groove 147a, there is a rear upper support that extends in the left-right direction so as to bend from the both side walls 147 toward the opposite side facing each other. A rear upper projection 158 is formed as a part. A lower surface of the rear upper projection 158 constitutes a rear upper support surface 158a. That is, at the front end of the lever member 131, a pair of upper support surfaces (the front upper support surface 157a and the rear upper support surface 158a) facing the upper surface 169b1 of the rear end of the operation member 133 are spaced apart in the vehicle front-rear direction. is provided. Further, the front end of the lever member 131 is provided with a front lower support surface 147c facing the lower surface 169b3 of the rear end of the operating member 133 and positioned below the front upper support surface 157a.

前側上部支持面１５７ａと前側下部支持面１４７ｃと両側壁１４７とにより、レバー部材１３１の前端部は断面略四角形状に形成され、このレバー部材１３１の前端部の内側に操作部材１３３の後端部が挿入されている。 The front end portion of the lever member 131 is formed in a substantially rectangular cross section by the front upper support surface 157a, the front lower support surface 147c, and the side walls 147. is inserted.

また、後側上部突起１５８の後方で且つ凹溝１４７ａの前方となる両側壁１４７には、両側壁１４７から互いに対向する側に向けて突出する移動規制突起１４７ｄが形成されている。移動規制突起１４７ｄは、両側壁１４７の一部を内側に突出させることにより形成される。 Both side walls 147 behind the rear upper protrusion 158 and in front of the recessed groove 147a are formed with movement restricting protrusions 147d that protrude from the side walls 147 toward the sides facing each other. 147 d of movement control protrusions are formed by making a part of both side walls 147 protrude inward.

さらに、凹溝１４７ａの後方で且つ前側突起部１３４ａよりも前方となる両側壁１４７には、左右一対の凹部１４７ｅを設けて、両側壁１４７相互間の間隔を前端部及び後端部よりも狭くした幅狭部１４７ｆが形成されている。 Furthermore, a pair of left and right recesses 147e are provided on both side walls 147 behind the recessed groove 147a and forward of the front projection 134a, so that the distance between the side walls 147 is narrower than the front end and the rear end. A narrow width portion 147f is formed.

図８に示すように、付勢部材１３２は、略平行に延びる左右一対の細長い棒状に形成され、アッパレール１０５の内側でアッパレール１０５のアッパ側壁１０５ｂに沿って前後方向に延在している。この付勢部材１３２は、レバー部材１３１の前端部を上方に付勢するようにレバー部材１３１の前端部にそれぞれ当接する前側作用部１３５ａを備える前側付勢部材１３５を有する。また、付勢部材１３２は、レバー部材１３１の後端部を上方に付勢するようにレバー部材１３１の後端部にそれぞれ当接する後側作用部１３６ａを備える後側付勢部材１３６を有する。さらに、付勢部材１３２は、前側作用部１３５ａと後側作用部１３６ａとの間に形成され、アッパレール１０５のアッパ側壁１０５ｂに設けられた係止部１０５ｇにそれぞれ係止される中間支持部１３７を有する。 As shown in FIG. 8, the biasing member 132 is formed in the shape of a pair of elongated left and right rods extending substantially parallel, and extends in the front-rear direction along the upper side wall 105b of the upper rail 105 inside the upper rail 105. As shown in FIG. The urging member 132 has a front urging member 135 having front acting portions 135a each abutting against the front end of the lever member 131 so as to urge the front end of the lever member 131 upward. The urging member 132 also has a rear urging member 136 having rear acting portions 136a that contact the rear ends of the lever members 131 so as to urge the rear ends of the lever members 131 upward. Further, the biasing member 132 includes an intermediate support portion 137 formed between the front acting portion 135a and the rear acting portion 136a and engaged with the engaging portion 105g provided on the upper side wall 105b of the upper rail 105. have.

後側付勢部材１３６は、中間支持部１３７から後側作用部１３６ａまで左右両アッパ側壁１０５ｂにそれぞれ沿って延びると共に、後端部に左右一対の後側作用部１３６ａが連結される連結部１３６ｂを有している。後側付勢部材１３６の連結部１３６ｂがロック部材１１７の下面に下方から当接して、後側作用部１３６ａ（連結部１３６ｂ）がロック部材１１７を上方（ロック位置方向）に付勢している。この後側付勢部材１３６の連結部１３６ｂが下方突出部１１７ｃと後側突起部１３４ｃとの間に位置することにより、後側付勢部材１３６（付勢部材１３２）の前後方向の移動範囲が規定される。 The rear biasing member 136 extends from the intermediate support portion 137 to the rear acting portion 136a along the left and right upper side walls 105b, and has a connecting portion 136b to which the pair of left and right rear acting portions 136a are connected to the rear end portion. have. The connecting portion 136b of the rear biasing member 136 contacts the lower surface of the locking member 117 from below, and the rear acting portion 136a (connecting portion 136b) biases the locking member 117 upward (toward the lock position). . Since the connecting portion 136b of the rear biasing member 136 is positioned between the downward projecting portion 117c and the rear projecting portion 134c, the range of movement of the rear biasing member 136 (biasing member 132) in the front-rear direction is increased. Defined.

後側付勢部材１３６は、後端部（後側作用部１３６ａ、連結部１３６ｂ）がレバー部材１３１及びロック部材１１７の下方に位置し、中間部分（中間支持部１３７）が凹部１４７ｅ（幅狭部１４７ｆとアッパ側壁１０５ｂとの間）を通ってレバー部材１３１の上方へ延びている。 The rear biasing member 136 has a rear end portion (rear acting portion 136a, connecting portion 136b) located below the lever member 131 and the locking member 117, and an intermediate portion (intermediate support portion 137) having a concave portion 147e (narrow width). It extends above the lever member 131 through the portion 147f and the upper side wall 105b).

その一方、前側付勢部材１３５は、中間支持部１３７から前側作用部１３５ａまで左右両アッパ側壁１０５ｂに沿って延びると共に、下方に折り返されて操作部材１３３の下面に設けた係止孔１３３ａに係合する抜止部１３５ｂを前端部に有している。前側付勢部材１３５の前側作用部１３５ａが操作部材１３３に下方から当接して、前側作用部１３５ａが操作部材１３３を介してレバー部材１３１の前端部を上方に付勢している。 On the other hand, the front biasing member 135 extends from the intermediate support portion 137 to the front acting portion 135a along the left and right upper side walls 105b, and is folded downward to engage with a locking hole 133a provided in the lower surface of the operating member 133. It has a locking portion 135b at its front end. A front acting portion 135 a of the front biasing member 135 contacts the operating member 133 from below, and the front acting portion 135 a biases the front end portion of the lever member 131 upward via the operating member 133 .

前側付勢部材１３５は、後端部（中間支持部１３７）がレバー部材１３１の上方に位置し、前端部（前側作用部１３５ａ）が互いに近づくように内側に曲げられて両側壁１４７の間を前方へ延びている。 The front biasing member 135 has a rear end (intermediate support portion 137) positioned above the lever member 131 and a front end (front acting portion 135a) bent inward so as to move toward the side walls 147. extending forward.

本実施形態では、前側付勢部材１３５と後側付勢部材１３６とは、一体（１つの部材）である。 In this embodiment, the front side biasing member 135 and the rear side biasing member 136 are integrated (one member).

図示はしないが、別の実施形態では、前側付勢部材１３５と後側付勢部材１３６とが、別体（別々の部材）であってもよい。 Although not shown, in another embodiment, the front biasing member 135 and the rear biasing member 136 may be separate bodies (separate members).

図１に示すように、操作部材１３３は、左右一対のレール体１０６に対応して設けられる左右一対のアーム部１６７と、左右一対のアーム部１６７同士をつないで車幅方向に延在する把持部１６８とを備えている。左右一対のアーム部１６７は、前後方向に延在し、左右それぞれのアッパレール１０５内に前端から挿入される後端部を有する。把持部１６８は、操作部材１３３を乗員が操作するときに把持する。 As shown in FIG. 1, the operation member 133 includes a pair of left and right arm portions 167 provided corresponding to the pair of left and right rail bodies 106, and a gripping member extending in the vehicle width direction by connecting the pair of left and right arm portions 167 to each other. a portion 168; The pair of left and right arm portions 167 extend in the front-rear direction and have rear end portions that are inserted into the left and right upper rails 105 from the front ends thereof. The grip portion 168 grips the operation member 133 when the passenger operates it.

アーム部１６７は、図１４に示すように、後端部が、レバー部材１３１の左右の側壁１４７相互間に挿入されている。アーム部１６７は、把持部１６８を含めた全体が円筒部材で構成しており、前述した後端部が、円筒部材をプレス成形により加工した形状の後方接続部としての接続端部１６９となっている。 As shown in FIG. 14, the rear end of the arm portion 167 is inserted between the left and right side walls 147 of the lever member 131 . The entire arm portion 167 including the grip portion 168 is formed of a cylindrical member, and the rear end portion described above serves as a connection end portion 169 as a rear connection portion formed by press-molding the cylindrical member. there is

図１１Ａ及び図１１Ｂに示すように、接続端部１６９は、上面１６９ｂ１と、上面１６９ｂ１の左右の両端部から下方に延びる側面１６９ｂ２と、左右の側面１６９ｂ２の下端から左右内側に向けて設けられる下面１６９ｂ３とを備えている。接続端部１６９の上側内面及び下側内面には、車両前後方向に沿って延びる左右一対の凹所１７１が設けられている。また、接続端部１６９の下面１６９ｂ３には、左右の凹所１７１，１７１を跨ぐように係止孔１３３ａが形成されている。 As shown in FIGS. 11A and 11B, the connection end portion 169 includes an upper surface 169b1, side surfaces 169b2 extending downward from both left and right ends of the upper surface 169b1, and a lower surface extending left and right inward from the lower ends of the left and right side surfaces 169b2. 169b3. A pair of left and right recesses 171 extending along the vehicle front-rear direction are provided on the upper inner surface and the lower inner surface of the connection end portion 169 . A locking hole 133a is formed in the lower surface 169b3 of the connecting end portion 169 so as to straddle the left and right recesses 171,171.

操作部材１３３の接続端部１６９は、円筒部材の左右方向中間部分をそれぞれ内方に突出させた突出部１７２を上下に有し、付勢部材１３２の左右一対の前端部がそれぞれ、接続端部１６９の上下方向の間隔が広い部分（凹所１７１）に配置されている。 The connection end portion 169 of the operation member 133 has protrusions 172 on the upper and lower sides, each of which protrudes inward from the laterally intermediate portion of the cylindrical member. 169 in a portion (recess 171) with a large vertical interval.

操作部材１３３をレバー部材１３１に装着する前の状態においては、付勢部材１３２の前端部（当接部）は、レバー部材１３１の前側上部支持面１５７ａに当接するようになっている。そして、操作部材１３３をレバー部材１３１に装着した状態（図１４参照）において、付勢部材１３２の前端部（当接部）は、操作部材１３３の内部に挿入されて、操作部材１３３の下面（上面１６９ｂ１の内面）に下方から当接し、操作部材１３３を上方に付勢するようになっている。 Before the operation member 133 is attached to the lever member 131 , the front end portion (contact portion) of the biasing member 132 contacts the front upper support surface 157 a of the lever member 131 . In a state where the operating member 133 is attached to the lever member 131 (see FIG. 14), the front end portion (abutment portion) of the biasing member 132 is inserted into the operating member 133 so that the lower surface of the operating member 133 ( The inner surface of the upper surface 169b1) is contacted from below to urge the operation member 133 upward.

図１４に示すように、アッパレール１０５のアッパ側壁１０５ｂには、レバー部材１３１が軸部材１１５により回動可能に支持され、付勢部材１３２が係止部１０５ｇにより下方への移動を規制するように係止される。また、アッパレール１０５の左右両アッパ側壁１０５ｂには、車両前後方向において軸受孔１０５ｆの前方の位置に、両アッパ側壁１０５ｂから互いに対向する側に向けて屈曲するようにして突出する後側下部支持部としての後側下部突起１４８が形成される。この後側下部突起１４８は、アッパ側壁１０５ｂから内側に向けて切起こして形成されたものである。 As shown in FIG. 14, on the upper side wall 105b of the upper rail 105, a lever member 131 is rotatably supported by a shaft member 115, and a biasing member 132 is restrained from downward movement by a locking portion 105g. Locked. Further, on both left and right upper side walls 105b of the upper rail 105, rear lower support portions are provided at positions in front of the bearing holes 105f in the longitudinal direction of the vehicle, and protrude from the upper side walls 105b so as to bend toward the sides facing each other. A rear lower projection 148 is formed as. The rear lower projection 148 is formed by cutting and raising the upper side wall 105b inward.

付勢部材１３２は、前側上部支持面１５７ａの下方の位置において操作部材１３３の後端部の下面（上面１６９ｂ１の内面）に下方から係合して、操作部材１３３を上方に付勢している。これにより、操作部材１３３の上面１６９ｂ１が一対の上部支持面（前側上部支持面１５７ａ、後側上部支持面１５８ａ）に接触している。このとき、レバー部材１３１に設けられた前側下部支持面１４７ｃと、操作部材１３３の後端部の下面１６９ｂ３との間、及び、アッパレール１０５に設けられた後側下部支持面１４８ａと、操作部材１３３の後端部の下面１６９ｂ３との間には、それぞれ上下方向のクリアランスＣ１，Ｃ２が設けられている。 The biasing member 132 engages with the lower surface (inner surface of the upper surface 169b1) of the rear end portion of the operation member 133 from below at a position below the front upper support surface 157a to bias the operation member 133 upward. . As a result, the upper surface 169b1 of the operating member 133 is in contact with the pair of upper support surfaces (the front upper support surface 157a and the rear upper support surface 158a). At this time, between the front lower support surface 147c provided on the lever member 131 and the lower surface 169b3 of the rear end portion of the operation member 133, and between the rear lower support surface 148a provided on the upper rail 105 and the operation member 133 Vertical clearances C1 and C2 are provided between the rear end portion and the lower surface 169b3, respectively.

次に、上記のように構成されたシートスライド装置１０１の動作を説明する。 Next, the operation of the seat slide device 101 configured as described above will be described.

図１４は、ロック部材１１７のロック歯１２５ｂがロアレール１０３のロック溝１２７に係合してロックされたロック位置にある待機状態（操作部材１３３を操作していない非操作状態）である。この状態においては、操作部材１３３は、付勢部材１３２の前端部（当接部）により、一対の上部支持面（前側上部支持面１５７ａ、後側上部支持面１５８ａ）に押し付けられている。この付勢部材１３２の前端部による押し付け力（付勢力）は、操作部材１３３が自重により下がろうとする力よりも大きい。一方で、ロック部材１１７をロック解除位置方向に回転付勢する回転モーメントとしては付勢部材１３２の後端部の押し付け力（付勢力）によるロック位置方向への回転モーメントよりも小さいため、前述の待機状態が維持される。 FIG. 14 shows a standby state (a non-operating state in which the operating member 133 is not operated) in which the locking tooth 125b of the locking member 117 is engaged with the locking groove 127 of the lower rail 103 and locked at the locked position. In this state, the operation member 133 is pressed against the pair of upper support surfaces (the front upper support surface 157a and the rear upper support surface 158a) by the front end portion (abutting portion) of the biasing member 132 . The pressing force (biasing force) by the front end portion of the biasing member 132 is greater than the force with which the operating member 133 tries to move down due to its own weight. On the other hand, the rotational moment for urging the lock member 117 to rotate toward the unlocked position is smaller than the rotational moment toward the locked position due to the pressing force (urging force) of the rear end portion of the urging member 132. A standby state is maintained.

図１４に示す状態から、乗員が操作部材１３３の把持部１６８を持ち上げる操作をすると、前側上部支持面１５７ａと操作部材１３３の上面１６９ｂ１との接点を支点として操作部材１３３が回動し、操作部材１３３の後端が付勢部材１３２の前端部（当接部）を押し下げて下方に移動する。その状態から、操作部材１３３の把持部１６８をさらに持ち上げると、操作部材１３３の後端部の下面１６９ｂ３がアッパレール１０５に設けられた後側下部支持面１４８ａに当接して、後側下部支持面１４８ａと操作部材１３３の後端部の下面１６９ｂ３との接点を支点として操作部材１３３が回動することになる。これにより、操作部材１３３の上面１６９ｂ１が、レバー部材１３１の前側上部支持面１５７ａを上方に持ち上げるように回動し、レバー部材１３１がロック部材１１７のロック部をロック解除位置方向に回動させる（図１５参照）。 When the occupant lifts the grip portion 168 of the operating member 133 from the state shown in FIG. The rear end of 133 pushes down the front end (contact portion) of biasing member 132 and moves downward. When the grip portion 168 of the operation member 133 is further lifted from this state, the lower surface 169b3 of the rear end portion of the operation member 133 contacts the rear lower support surface 148a provided on the upper rail 105, and the rear lower support surface 148a is lifted. and the lower surface 169b3 of the rear end portion of the operating member 133 as a fulcrum. As a result, the upper surface 169b1 of the operating member 133 rotates so as to lift the front upper support surface 157a of the lever member 131 upward, and the lever member 131 rotates the lock portion of the lock member 117 toward the unlocked position ( See Figure 15).

これにより、レバー部材１３１は、軸部材１１５を回動中心として図１４中で時計回り方向に揺動回転する。このとき、レバー部材１３１は、揺動回転によってロック部材１１７を下方に押し下げ、付勢部材１３２（後側付勢部材１３６）が下方に向けて弾性変形する。その結果、ロック歯１２５ｂがロアレール１０３のロック溝１２７から外れてロックが解除されたロック解除状態となる。ロックが解除されることで、図示しないシートをアッパレール１０５と共に、ロアレール１０３側の車両の床面に対して前後に移動させることができ、乗員の希望とするシート位置を確保できる。 As a result, the lever member 131 swings and rotates clockwise in FIG. 14 with the shaft member 115 as the center of rotation. At this time, the lever member 131 presses down the lock member 117 by its swinging rotation, and the biasing member 132 (rear side biasing member 136) is elastically deformed downward. As a result, the lock teeth 125b are disengaged from the lock grooves 127 of the lower rail 103, resulting in an unlocked state. By releasing the lock, the seat (not shown) can be moved back and forth along with the upper rail 105 with respect to the floor surface of the vehicle on the lower rail 103 side, and the seat position desired by the occupant can be secured.

シート位置を決定した状態で、乗員が操作部材１３３から手を離すと、付勢部材１３２（後側付勢部材１３６）がロック部材１１７を上方に押し付け、レバー部材１３１を揺動回転させて図１４の待機状態に戻る。このとき、レバー部材１３１は、軸部材１１５を回動中心として図１４中で反時計回り方向に揺動回転する。 When the occupant releases the operating member 133 after the seat position is determined, the biasing member 132 (rear side biasing member 136) presses the lock member 117 upward, causing the lever member 131 to swing and rotate. It returns to the waiting state of 14. At this time, the lever member 131 swings and rotates in the counterclockwise direction in FIG. 14 with the shaft member 115 as the center of rotation.

図１４の状態で、操作部材１３３に反ロック解除方向（下方）への負荷が作用した場合には、後側上部支持面１５８ａと操作部材１３３の上面１６９ｂ１との接点を支点として操作部材１３３が回動し、操作部材１３３の下面１６９ｂ３と前側下部支持面１４７ｃとの間のクリアランスＣ１の分だけ、操作部材１３３が下方に移動することができる（図１６参照）。なお、このとき、レバー部材１３１は、主ロック歯１２５ｍの噛み合い位置を中心に下方へ回動し、両側壁１４７の前端側の下面が後側下部支持面１４８ａに当接することでレバー部材１３１の下方への移動を規制し、凹溝１４７ａが軸部材１１５から外れるのを防止している。 In the state shown in FIG. 14, when a load acts on the operating member 133 in the counter-unlocking direction (downward), the operating member 133 moves with the contact point between the rear upper support surface 158a and the upper surface 169b1 of the operating member 133 as a fulcrum. As a result, the operating member 133 can move downward by the clearance C1 between the lower surface 169b3 of the operating member 133 and the front lower support surface 147c (see FIG. 16). At this time, the lever member 131 rotates downward around the engagement position of the main lock tooth 125m, and the lower surfaces of the front end sides of the side walls 147 come into contact with the rear lower support surface 148a. It restricts downward movement and prevents the concave groove 147 a from coming off the shaft member 115 .

以下、本実施形態に係わるシートスライド装置１０１の作用効果を説明する。 The effects of the seat slide device 101 according to this embodiment will be described below.

（１）シートスライド装置１０１は、車両前後方向に沿って延設されるロアレール１０３と、ロアレール１０３の長手方向に沿って相対移動するアッパレール１０５と、アッパレール１０５に対して左右方向の軸周りに回動可能に支持されるレバー部材１３１と、レバー部材１３１の後端部に設けられ、ロアレール１０３に形成された被ロック部（ロック溝１２７）に係合するロック位置と被ロック部から外れたロック解除位置との間で移動可能なロック部（ロック歯１２５ｂ）を備えたロック部材１１７と、ロック部をロック位置方向に付勢する後側付勢部材１３６と、レバー部材１３１の前端部に接続される操作部材１３３と、を備える。レバー部材１３１は、アッパレール１０５の長手方向に沿って延びる左右一対の側壁１４７と、左右一対の側壁１４７の前端部の上端部に設けられ、左右方向内側に延出する前側上部支持部（前側上部突起１５７）と、左右一対の側壁１４７の前端部の下端部に設けられ、左右方向内側に延出する前側下部支持部（前部下壁１４７ｂ）と、を有する。左右一対の側壁１４７と前側上部支持部と前側下部支持部とにより、レバー部材１３１の前端部が断面略四角形状を有して、この前端部の内方に操作部材１３３の筒状部分（接続端部１６９）が挿入されている。シートスライド装置１０１は、棒状の部材から形成され、支持部がアッパレール１０５に設けた係止部１０５ｇに係止されると共に、前端部が操作部材１３３の筒状部分の内部に挿入される前側付勢部材１３５をさらに備える。前側付勢部材１３５の前端部は、操作部材１３３を上方に付勢して操作部材１３３を前側上部支持部に対して押し付けると共に、前側付勢部材１３５は、その前端部において下方に折り返されて操作部材１３３に設けた係止孔１３３ａに係合する抜止部１３５ｂを有する。 (1) The seat slide device 101 includes a lower rail 103 extending along the vehicle front-rear direction, an upper rail 105 relatively moving along the longitudinal direction of the lower rail 103, and a seat slide device 101 rotating about an axis in the left-right direction with respect to the upper rail 105. A lever member 131 movably supported, a lock position provided at the rear end of the lever member 131 and engaged with a locked portion (lock groove 127) formed in the lower rail 103, and a lock disengaged from the locked portion. A lock member 117 having a lock portion (lock tooth 125b) movable between the release position and a rear side biasing member 136 that biases the lock portion toward the lock position is connected to the front end portion of the lever member 131. and an operation member 133 to be operated. The lever member 131 includes a pair of left and right side walls 147 extending along the longitudinal direction of the upper rail 105, and a front upper support portion (front upper portion) extending inward in the left and right direction. and a front lower support portion (front lower wall 147b) provided at the lower ends of the front ends of the pair of left and right side walls 147 and extending inward in the left-right direction. The pair of left and right side walls 147, the front-side upper support portion, and the front-side lower support portion form a front end portion of the lever member 131 that has a substantially square cross-sectional shape. end 169) is inserted. The seat slide device 101 is formed of a rod-shaped member, and has a support portion that is engaged with an engaging portion 105g provided on the upper rail 105, and a front end that is inserted into the cylindrical portion of the operation member 133. A biasing member 135 is further provided. The front end portion of the front biasing member 135 biases the operating member 133 upward to press the operating member 133 against the front upper support portion, and the front biasing member 135 is folded downward at its front end portion. It has a retaining portion 135b that engages with a locking hole 133a provided in the operating member 133. As shown in FIG.

前側付勢部材１３５を操作部材１３３の筒状部分の内部に差し込む構造であるため、レバー部材１３１及び操作部材１３３の上下方向の空間に前側付勢部材１３５を設ける必要がなく、レバー部材１３１及び操作部材１３３が作動する空間を大きく確保できる。このため、レバー部材１３１及び操作部材１３３のレイアウト性がよい。 Since the front biasing member 135 is inserted into the cylindrical portion of the operating member 133, it is not necessary to provide the front biasing member 135 in the vertical space between the lever member 131 and the operating member 133. A large space for operating the operating member 133 can be secured. Therefore, the layout property of the lever member 131 and the operation member 133 is good.

前側付勢部材１３５の前端部は、細長い棒状の部材を押圧方向とは反対側（下方）に折り返した形状であるため、前側付勢部材１３５の抜け止めのための形状の簡素化が図れると共に製造コストを安くできる。 The front end portion of the front side biasing member 135 has a shape in which an elongated rod-shaped member is folded in the direction opposite to the pressing direction (downward), so that the shape for preventing the front side biasing member 135 from coming off can be simplified. Can reduce manufacturing costs.

（２）操作部材１３３の筒状部分は、その左右方向中間部分をそれぞれ内方に突出させた突出部１７２を上下に有し、前側付勢部材１３５は、互いに対して平行に延びる左右一対の前端部を有する。前側付勢部材１３５の左右一対の前端部がそれぞれ、操作部材１３３の筒状部分の上下方向の間隔が広い部分（凹所１７１）に配置されている。 (2) The cylindrical portion of the operation member 133 has upper and lower protruding portions 172 that protrude inward from the middle portions in the left-right direction. It has a front end. A pair of left and right front end portions of the front biasing member 135 are arranged in portions (recesses 171 ) of the cylindrical portion of the operation member 133 with a wide vertical interval.

前側付勢部材１３５の左右一対の前端部の左右方向位置が安定するため、前側付勢部材１３５の位置ズレによる異音の発生及びガタつきを抑制できる。 Since the left-right position of the pair of left and right front end portions of the front biasing member 135 is stabilized, it is possible to suppress the generation of abnormal noise and rattling due to positional deviation of the front biasing member 135 .

操作部材１３３は、筒状のパイプ部材の先端を上下に押圧するだけで成形できるため、加工が容易であると共に、接続端部１６９の剛性を高くできる。 Since the operation member 133 can be formed simply by pressing the tip of the cylindrical pipe member up and down, it is easy to process and the rigidity of the connecting end portion 169 can be increased.

（３）レバー部材１３１には、前側上部支持部及び前側下部支持部の後方に位置して操作部材１３３の後方側への移動を規制する移動規制突起１４７ｄが、左右一対の側壁１４７の一部を内側に突出させることにより形成されている。 (3) On the lever member 131, movement restricting projections 147d positioned behind the front upper support portion and the front lower support portion to restrict rearward movement of the operating member 133 are formed as part of the pair of left and right side walls 147. is formed by protruding inward.

操作部材１３３に乗員の踵がぶつかり、操作部材１３３が後方に押された際に、操作部材１３３の後端部端面がレバー部材１３１の移動規制突起１４７ｄに当接するため、操作部材１３３の後方への移動を阻止することができる。 When the occupant's heel hits the operating member 133 and pushes the operating member 133 rearward, the rear end face of the operating member 133 abuts against the movement restricting protrusion 147d of the lever member 131, so that the operating member 133 moves rearward. movement can be prevented.

これにより、前側付勢部材１３５の抜止部１３５ｂと共にレバー部材１３１に対する操作部材１３３の車両前後方向の位置を規制することができる。 Thereby, the position of the operation member 133 in the vehicle front-rear direction with respect to the lever member 131 can be restricted together with the retaining portion 135 b of the front biasing member 135 .

（４）後側付勢部材１３６及び前側付勢部材１３５は、一体の付勢部材１３２として形成されている。付勢部材１３２の後端部が、ロック部をロック方向に付勢すると共に、レバー部材１３１に対して前方側への移動を規制されるように係止される。付勢部材１３２の車両前後方向の中間部分がアッパレール１０５の係止部１０５ｇに係止され、付勢部材１３２の前端部に設けた抜止部１３５ｂが、操作部材１３３に設けた係止孔１３３ａに係止される。 (4) The rear biasing member 136 and the front biasing member 135 are formed as an integral biasing member 132 . The rear end portion of the biasing member 132 biases the locking portion in the locking direction and is engaged with the lever member 131 so as to be restricted from moving forward. An intermediate portion of the biasing member 132 in the vehicle front-rear direction is locked by the locking portion 105g of the upper rail 105, and a retaining portion 135b provided at the front end portion of the biasing member 132 is engaged with the locking hole 133a provided in the operation member 133. Locked.

ロック部をロック方向に付勢する後側付勢部材１３６と、操作部材１３３とレバー部材１３１とを連結する前側付勢部材１３５を、１つの付勢部材１３２により構成できるため、部品点数の削減が図れる。 Since the rear biasing member 136 that biases the locking portion in the locking direction and the front biasing member 135 that connects the operation member 133 and the lever member 131 can be configured by one biasing member 132, the number of parts can be reduced. can be achieved.

また、付勢部材１３２のレバー部材１３１に対する前方側への移動規制を容易にすることができる。 Further, it is possible to easily restrict the forward movement of the biasing member 132 with respect to the lever member 131 .

以上、本発明の実施形態について説明したが、これらの実施形態は本発明の理解を容易にするために記載された単なる例示に過ぎず、本発明は当該実施形態に限定されるものではない。本発明の技術的範囲は、上記実施形態で開示した具体的な技術事項に限らず、そこから容易に導きうる様々な変形、変更、代替技術なども含む。 Although the embodiments of the present invention have been described above, these embodiments are merely examples described to facilitate understanding of the present invention, and the present invention is not limited to the embodiments. The technical scope of the present invention is not limited to the specific technical matters disclosed in the above embodiments, but also includes various modifications, changes, alternative techniques, etc. that can be easily derived therefrom.

例えば、付勢部材１３２の一対の前端部は、同じ長さを有するが、長手方向に異なる長さ（一方が長く、他方が短い。）であってもよい。また、抜止部１３５ｂを付勢部材１３２の一対の前端部それぞれに設けているが、一方の前端部のみに設けるようにしてもよい。 For example, the pair of front ends of the biasing member 132 may have the same length, but different lengths (one longer and the other shorter) in the longitudinal direction. Moreover, although the retaining portions 135b are provided on each of the pair of front ends of the urging member 132, they may be provided on only one of the front ends.

また、付勢部材１３２の前側作用部１３５ａを操作部材１３３の内部に挿入しているが、外側下面（下面１６９ｂ３）を下側から上方に付勢するようにしてもよい。 Further, although the front acting portion 135a of the biasing member 132 is inserted into the operation member 133, the outer lower surface (lower surface 169b3) may be biased upward from below.

さらにまた、上部突起１５７，１５８は、両側壁１４７の上端部にそれぞれ設けられているが、一方の側壁１４７の上端部にのみ設けるようにしてもよい。 Furthermore, although the upper protrusions 157 and 158 are provided at the upper ends of both side walls 147 respectively, they may be provided only at the upper end of one side wall 147 .

また、レバー部材１３１の前端部の下端部は、前部下壁１４７ｂにより相互につながっているが、前側上部突起１５７を相互につながる形状としてもよい。この場合、レバー部材１３１は、左右の側壁１４７の下端相互をつなぐ下壁１３４が上端相互をつなぐ上壁となった、下方が開放した逆向きＵ字形状となる。 The lower ends of the front ends of the lever members 131 are connected to each other by the front lower wall 147b, but the front upper projections 157 may be connected to each other. In this case, the lever member 131 has an inverted U shape with an open bottom, in which a lower wall 134 connecting the lower ends of the left and right side walls 147 serves as an upper wall connecting the upper ends.

１０１ シートスライド装置
１０３ ロアレール
１０５ アッパレール
１０５ｇ 係止部
１１７ ロック部材
１２５ｂ ロック歯
１２７ ロック溝
１３１ レバー部材
１３２ 付勢部材
１３３ 操作部材
１３３ａ 係止孔
１３５ 前側付勢部材
１３５ｂ 抜止部
１３６ 後側付勢部材
１４７ 側壁
１４７ａ 凹溝
１４７ｂ 前部下壁
１４７ｄ 移動規制突起
１５７ 前側上部突起
１５８ 後側上部突起
１６９ 接続端部
１７１ 凹所
１７２ 突出部 101 seat slide device 103 lower rail 105 upper rail 105g locking portion 117 locking member 125b locking tooth 127 locking groove 131 lever member 132 biasing member 133 operating member 133a locking hole 135 front side biasing member 135b retaining portion 136 rear side biasing member 147 Side wall 147a Groove 147b Front lower wall 147d Movement restricting projection 157 Front upper projection 158 Rear upper projection 169 Connection end 171 Recess 172 Projection

Claims (4)

車両前後方向に沿って延設されるロアレールと、
前記ロアレールの長手方向に沿って相対移動するアッパレールと、
前記アッパレールに対して左右方向の軸周りに回動可能に支持されるレバー部材と、
前記レバー部材の後端部に設けられ、前記ロアレールに形成された被ロック部に係合するロック位置と前記被ロック部から外れたロック解除位置との間で移動可能なロック部を備えたロック部材と、
前記ロック部をロック位置方向に付勢する後側付勢部材と、
前記レバー部材の前端部に接続される操作部材と、を備え、
前記レバー部材は、
前記アッパレールの長手方向に沿って延びる左右一対の側壁と、
左右一対の前記側壁の前端部の上端部に設けられ、左右方向内側に延出する前側上部支持部と、
左右一対の前記側壁の前端部の下端部に設けられ、左右方向内側に延出する前側下部支持部と、を有し、
左右一対の前記側壁と前記前側上部支持部と前記前側下部支持部とにより、前記レバー部材の前端部が断面略四角形状を有して、この前端部の内方に前記操作部材の筒状部分が挿入されており、
棒状の部材から形成され、支持部が前記アッパレールに設けた係止部に係止されると共に、前端部が前記操作部材の筒状部分の内部に挿入される前側付勢部材が設けられ、
前記前側付勢部材の前端部は、前記操作部材を上方に付勢して前記操作部材を前記前側上部支持部に対して押し付けると共に、
前記前側付勢部材は、その前端部において下方に折り返されて前記操作部材に設けた係止孔に係合する抜止部を有する、
シートスライド装置。 a lower rail extending along the longitudinal direction of the vehicle;
an upper rail that relatively moves along the longitudinal direction of the lower rail;
a lever member supported to be rotatable about an axis in the left-right direction with respect to the upper rail;
A lock provided at the rear end of the lever member and provided with a locking portion movable between a locking position engaged with a locked portion formed on the lower rail and an unlocking position disengaged from the locked portion. a member;
a rear biasing member that biases the lock portion toward the locked position;
an operating member connected to the front end of the lever member,
The lever member
a pair of left and right side walls extending along the longitudinal direction of the upper rail;
a front upper support portion provided at the upper end portion of the front end portion of the pair of left and right side walls and extending inward in the left-right direction;
a front lower support portion provided at the lower ends of the front ends of the pair of left and right side walls and extending inward in the left-right direction;
The pair of left and right side walls, the front-side upper support portion, and the front-side lower support portion form a front end portion of the lever member that has a substantially square cross-sectional shape, and a cylindrical portion of the operation member is formed inside the front end portion. is inserted and
a front urging member formed of a rod-shaped member, a support portion of which is engaged with an engaging portion provided on the upper rail, and a front end portion of which is inserted into the cylindrical portion of the operation member;
The front end portion of the front side biasing member biases the operating member upward to press the operating member against the front side upper support portion, and
The front biasing member has a retaining portion that is folded downward at the front end thereof and engages with a locking hole provided in the operating member,
seat slide device. 前記操作部材の筒状部分は、その左右方向中間部分をそれぞれ内方に突出させた突出部を上下に有し、
前記前側付勢部材は、互いに対して平行に延びる左右一対の前端部を有し、
前記前側付勢部材の左右一対の前端部がそれぞれ、前記操作部材の筒状部分の上下方向の間隔が広い部分に配置されている、
請求項１に記載のシートスライド装置。 the tubular portion of the operation member has upper and lower protruding portions each protruding inward from the middle portion in the left-right direction;
The front biasing member has a pair of left and right front ends extending parallel to each other,
The pair of left and right front end portions of the front side biasing member are respectively arranged in portions of the cylindrical portion of the operation member with a wide vertical interval,
The seat slide device according to claim 1. 前記レバー部材には、前記前側上部支持部及び前記前側下部支持部の後方に位置して前記操作部材の後方側への移動を規制する移動規制突起が、左右一対の前記側壁の一部を内側に突出させることにより形成されている、
請求項１又は２に記載のシートスライド装置。 The lever member has movement restricting projections positioned behind the front upper support portion and the front lower support portion to restrict rearward movement of the operation member. formed by protruding into
The seat slide device according to claim 1 or 2. 前記後側付勢部材及び前記前側付勢部材は、一体の付勢部材として形成されており、
前記付勢部材の後端部が、前記ロック部をロック方向に付勢すると共に、前記レバー部材に対して前方側への移動を規制されるように係止され、
前記付勢部材の車両前後方向の中間部分が前記アッパレールの前記係止部に係止され、
前記付勢部材の前端部に設けた前記抜止部が、前記操作部材に設けた前記係止孔に係止される、
請求項１～３のうちいずれか１項に記載のシートスライド装置。 The rear biasing member and the front biasing member are formed as an integral biasing member,
the rear end portion of the biasing member biases the lock portion in the locking direction and is engaged with the lever member so as to be restricted from moving forward;
an intermediate portion of the biasing member in the vehicle front-rear direction is locked to the locking portion of the upper rail;
the retaining portion provided at the front end portion of the biasing member is engaged with the engaging hole provided in the operating member;
The seat slide device according to any one of claims 1 to 3.

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