JP5566014B2

JP5566014B2 - Seat track equipment

Info

Publication number: JP5566014B2
Application number: JP2008204888A
Authority: JP
Inventors: 直樹林; 宏行鈴木
Original assignee: Shiroki Corp
Current assignee: Shiroki Corp
Priority date: 2008-08-07
Filing date: 2008-08-07
Publication date: 2014-08-06
Anticipated expiration: 2028-08-07
Also published as: JP2010036824A

Description

本発明は、ロアレールの底壁部とその両縁から立設された２つの側壁部とで囲まれる空間（溝状空間）にアッパーレールの下部を収容してレール長手方向へ移動可能に支持するとともに、アッパーレールとロアレールの間に設けたロック機構によりアッパーレールを移動禁止状態にロックするシートトラック装置に関する。 The present invention accommodates the lower portion of the upper rail in a space (grooved space) surrounded by the bottom wall portion of the lower rail and two side wall portions erected from both edges thereof, and supports the lower rail so as to be movable in the longitudinal direction of the rail. In addition, the present invention relates to a seat track device that locks the upper rail in a movement-inhibited state by a lock mechanism provided between the upper rail and the lower rail.

自動車のシートを前後移動可能に支持するとともに、所望の位置に停止させて移動禁止状態にロックする機能を備えたシートトラック装置が提供されている。
このシートトラック装置の主たるタイプとしては、ロアレールの底壁部とその両縁から立設された２つの側壁部で囲まれる空間（溝状空間）にアッパーレールの下部を収容するタイプと、アッパーレールの両側壁部によりロアレールの両側壁部を包み込むように覆うタイプとがある。前者としては、例えば、特開２００７−１２６０８０号公報（特許文献１）に記載の装置を挙げることができる。また、後者としては、例えば、特開平０７−１９５９６４号公報（特許文献２）に記載の装置を挙げることができる。 2. Description of the Related Art There is provided a seat track device that has a function of supporting a seat of an automobile so as to be movable back and forth, and locking it to a movement prohibited state by stopping at a desired position.
The main types of the seat track apparatus are a type in which the lower part of the upper rail is accommodated in a space (grooved space) surrounded by the bottom wall part of the lower rail and two side wall parts erected from both edges thereof, and the upper rail. There is a type that covers both side walls of the lower rail so as to wrap around the both side walls. As the former, for example, an apparatus described in Japanese Patent Application Laid-Open No. 2007-122080 (Patent Document 1) can be given. Examples of the latter include the device described in JP-A-07-195964 (Patent Document 2).

また、ロック機構として、特許文献１（特開２００７−１２６０８０号公報）では、アッパーレール側の部材により揺動自在に支持したロック部材の爪を、アッパーレール側のブラケットの孔・ロアレールの側壁部の孔・アッパーレールの側板部の孔に挿通して係合させる機構が採用されている（特許文献１の図５参照）。
また、特許文献２（特開平０７−１９５９６４号公報）では、アッパーレールにより支持したラッチ用バネの係合突部を、アッパーレールの下垂板部の孔・ロアレールの下垂部の下端縁の切欠き・アッパーレールの側板部の孔に係合させる機構が採用されている（特許文献２の図１４，１５参照）。 Also, as a lock mechanism, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2007-124080), a locking member claw supported by a member on the upper rail side so as to be swingable is used as a bracket hole on the upper rail side or a side wall portion of the lower rail. A mechanism for inserting and engaging with the holes of the side plates of the upper rail and the upper rail is employed (see FIG. 5 of Patent Document 1).
Further, in Patent Document 2 (Japanese Patent Application Laid-Open No. 07-195964), the engagement protrusion of the latch spring supported by the upper rail is formed by notching the hole in the lower plate portion of the upper rail and the lower end edge of the lower portion of the lower rail. A mechanism that engages with a hole in the side plate portion of the upper rail is employed (see FIGS. 14 and 15 of Patent Document 2).

特開２００７−１２６０８０号公報Japanese Patent Application Laid-Open No. 2007-125080 特開平０７−１９５９６４号公報Japanese Patent Application Laid-Open No. 07-195964

自動車のシートを前後移動可能に支持し、所望の位置でロックするシートトラック装置には、小型化・軽量化の要請や、組み付けの自動化・容易化の要請がある。
本発明は、ロアレールの底壁部とその両縁から立設された２つの側壁部で囲まれる空間にアッパーレールの下部を収容するタイプのシートトラック装置に関して、上記の要請に応えることを目的とする。 A seat track device that supports a seat of an automobile so that it can move back and forth and locks it at a desired position has a demand for miniaturization and weight reduction, and a demand for automation and easy assembly.
An object of the present invention is to meet the above-mentioned demand with respect to a seat track apparatus of a type in which a lower portion of an upper rail is accommodated in a space surrounded by a bottom wall portion of the lower rail and two side wall portions erected from both edges thereof. To do.

本発明は、下記［１］〜［７］のように構成される。なお、本項（課題を解決するための手段）及び次項（発明の効果）に於いて付した符号は理解を容易にするためであり、本願発明を符号の構成に限定する趣旨ではない。
［１］構成１：
ロアレール１の底壁部１０とその両縁から立設されたアウタ側壁部１１及びインナ側壁部１６で囲まれる空間にアッパーレール２の下部を収容してレール方向へ移動可能に支持するとともに、ロック部材３０を備えたロック機構３をアッパーレール２とロアレール１に関連付けて有し該ロック機構３によりアッパーレール２を移動禁止状態にロックするシートトラック装置であって、
前記ロアレール１は、アウタ側壁部１１の上端縁からインナ側へ延設された天壁部１２と、該天壁部１２の先端縁から下垂された下垂部１３とを有し、前記インナ側壁部１６の高さは前記ロック部材３０をその上方位置にて前記アッパーレール２に取り付け得る高さに設定されており、
前記アッパーレール２は、鉛直に設けられるアウタ側板材２０ａとインナ側板材２０ｂを有し上部にてシートを支持する立板部２０と、該立板部２０のアウタ側板材の下端縁からアウタ側へ延設された底板部２１と、該底板部２１の先端縁から上方へ立設されその先端縁が前記ロアレール１のアウタ側壁部１１と天壁部１２と下垂部１３とで構成される溝内に位置される側板部２２とを有し、
前記アウタ側板材２０ａよりアウタ側にある前記ロアレール１のアウタ側壁部１１と天壁部１２と下垂部１３とで構成される溝内の、前記アッパーレール２の側板部２２との各間隙に、前記レール方向への移動可能な支持のためのボール４２，４３をそれぞれ設け、前記アウタ側板材２０ａよりインナ側にはボールを設けず、
前記ロック機構３は、係合突部３１を有し前記立板部２０の板材のインナ側の板面上に支持されたロック部材３０と、前記立板部２０の板材に形成された手前側貫通孔と、前記下垂部１３に設けられた係合受部１３０とを備え、前記ロック部材３０の係合突部３１を前記手前側貫通孔に挿通した状態で前記係合受部１３０と係合させることによりアッパーレール２を移動禁止状態にロックする、
ことを特徴とするシートトラック装置。
The present invention is configured as the following [1] to [7]. In addition, the code | symbol attached | subjected in this term (means for solving a subject) and the following term (effect of invention) is for understanding easily, and is not the meaning which limits this invention to the structure of a code | symbol.
[1] Configuration 1:
A lower wall of the lower rail 1 is accommodated in a space surrounded by the bottom wall portion 10 and the outer side wall portion 11 and the inner side wall portion 16 erected from both edges of the lower rail 1 so as to be movable in the rail direction and locked. A seat track device that has a lock mechanism 3 including a member 30 associated with the upper rail 2 and the lower rail 1 and locks the upper rail 2 in a movement-inhibited state by the lock mechanism 3.
The lower rail 1 includes a top wall portion 12 extending from the upper end edge of the outer side wall portion 11 to the inner side, and a hanging portion 13 hanging from the tip edge of the top wall portion 12, and the inner side wall portion The height of 16 is set to a height at which the lock member 30 can be attached to the upper rail 2 at an upper position thereof,
The upper rail 2 has an outer side plate member 20a and an inner side plate member 20b that are provided vertically, and a vertical plate portion 20 that supports a seat at the upper portion, and a lower edge of the outer side plate member of the vertical plate portion 20 from the outer side. A bottom plate portion 21 extending upward, and a groove that is erected upward from a tip edge of the bottom plate portion 21, and whose tip edge is constituted by the outer side wall portion 11, the top wall portion 12, and the hanging portion 13 of the lower rail 1. A side plate portion 22 positioned inside,
In each gap between the side plate portion 22 of the upper rail 2 in the groove formed by the outer side wall portion 11, the top wall portion 12, and the hanging portion 13 of the lower rail 1 located on the outer side from the outer side plate material 20 a , Balls 42 and 43 for supporting movement in the rail direction are provided , and no ball is provided on the inner side of the outer side plate member 20a.
The lock mechanism 3 has an engagement protrusion 31 and is supported on a plate surface on the inner side of the plate material of the standing plate portion 20, and the near side formed on the plate material of the standing plate portion 20. A through hole and an engagement receiving portion 130 provided on the hanging portion 13, and the engagement receiving portion 130 is engaged with the engagement protrusion 31 of the lock member 30 inserted into the front through hole. By locking, the upper rail 2 is locked in the movement prohibited state.
A seat track device.

上記に於いて、アウタ（側）・インナ（側）とは、それらが相互に反対方向であることを示す。したがって、この表現に代えて、例えば、「一方（側）」と「（該一方とは反対の）他方（側）」というような表現を用いてもよい。アウタ（側）・インナ（側）としては、例えば、シート着座者の左右の直下に一対のシートトラック装置を配した場合に於いて、着座者から見て外側をアウタ（側）、着座者の中心側をインナ（側）とすることができる。
また、上記に於いて、立板部２０を後述の構成３の如く２枚の平行な板材２０ａ，２０ｂで構成してもよく、その場合に於いて、それらを重ねて密着して構成してもよく、所定の間隙を保持して平行に設けるようにしてもよい。 In the above, outer (side) and inner (side) indicate that they are in opposite directions. Therefore, instead of this expression, expressions such as “one (side)” and “the other (side opposite to the one)” may be used. As the outer (side) / inner (side), for example, when a pair of seat track devices are arranged directly below the left and right sides of the seat occupant, the outer side (side) of the seat occupant is The center side can be an inner side.
Further, in the above, the upright plate portion 20 may be constituted by two parallel plate materials 20a and 20b as in the configuration 3 to be described later. Alternatively, a predetermined gap may be maintained and provided in parallel.

［２］構成２：
構成１に於いて、
前記インナ側壁部１６の高さは前記下垂部１３の下端より低く設定されている、
ことを特徴とするシートトラック装置。 [2] Configuration 2:
In configuration 1,
The height of the inner side wall portion 16 is set lower than the lower end of the hanging portion 13,
A seat track device.

［３］構成３：
構成２に於いて、
前記ロアレール１は、さらに、前記インナ側壁部１６の先端縁から前記下垂部１３の下端より低い高さでアウタ側へ延設された第２天壁部１７と、該第２天壁部１７の先端縁から底壁部１０側へ延設された第２下垂部１８を有し、
前記アッパーレール２の立板部２０の板材はアウタ側板材２０ａとインナ側板材２０ｂという２枚の平行な板材から成り、前記底板部２１はアウタ側板材２０ａから延設されており、
前記アッパーレール２は、さらに、前記インナ側板材２０ｂの下端縁からインナ側へ延設された第２底板部２６と、該第２底板部２６の先端縁から上方へ立設されその先端縁が前記ロアレール１のインナ側壁部１６と第２天壁部１７と第２下垂部１８とで構成される溝内に位置される第２側板部２７とを有し、
前記ロック部材３０は前記インナ側板材２０ｂのインナ側の板面上に支持されている、
ことを特徴とするシートトラック装置。
アウタ側板材２０ａとインナ側板材２０ｂは、それぞれが別の板材であってもよく、また、１枚の板材を折り曲げて図１内不図示の上方にて連続していてもよい。また、両板材は２枚重ねで密着していてもよく、所定の間隙をあけられていてもよい。 [3] Configuration 3:
In configuration 2,
The lower rail 1 further includes a second ceiling wall portion 17 extending from the leading edge of the inner side wall portion 16 to the outer side at a height lower than the lower end of the hanging portion 13, and the second ceiling wall portion 17. A second hanging portion 18 extending from the leading edge to the bottom wall 10 side;
The plate material of the upright plate portion 20 of the upper rail 2 is composed of two parallel plate materials, an outer side plate material 20a and an inner side plate material 20b, and the bottom plate portion 21 extends from the outer side plate material 20a.
The upper rail 2 is further provided with a second bottom plate portion 26 extending from the lower end edge of the inner side plate member 20b toward the inner side, and an upper end of the second bottom plate portion 26 that is erected upward. A second side plate portion 27 located in a groove formed by the inner side wall portion 16, the second top wall portion 17, and the second hanging portion 18 of the lower rail 1,
The lock member 30 is supported on the inner side plate surface of the inner side plate member 20b.
A seat track device.
Each of the outer side plate member 20a and the inner side plate member 20b may be a different plate member, or one plate member may be bent and continuous in an upper portion (not shown in FIG. 1). Moreover, both board | plate materials may be closely_contact | adhered by 2 sheets, and the predetermined clearance gap may be opened.

［４］構成４：
構成１〜構成３の何れかに於いて、
前記ロック機構３は前記側板部２２に形成された奥側貫通孔２２ｈを更に有し、前記ロック部材３０の係合突部３１を前記手前側貫通孔２０ｂｈ，２０ａｈに挿通した状態で前記係合受部１３０と係合させるとともに前記奥側貫通孔２２ｈに挿通することによりアッパーレール２を移動禁止状態にロックする、
ことを特徴とするシートトラック装置。 [4] Configuration 4:
In any of Configuration 1 to Configuration 3,
The lock mechanism 3 further includes a back side through hole 22h formed in the side plate portion 22, and the engagement protrusion 31 of the lock member 30 is inserted into the front side through holes 20bh and 20ah in the engaged state. The upper rail 2 is locked in a movement-inhibited state by being engaged with the receiving portion 130 and being inserted into the back side through hole 22h.
A seat track device.

［５］構成５：
構成１〜構成４の何れかに於いて、
前記ロック部材３０は線状弾性体を凹凸状に屈曲させて係合突部３１を形成したバネ３０であり、その両端３０１，３０２を前記立板部２０の板材のインナ側の板面上に支持されており、
前記係合受部１３０は前記下垂部１３の下端縁を凹凸状に切り欠いて成る係合歯１３０であり、
前記バネ３０の中間部３０ｃを下方へ押圧して変移させることにより係合突部３１を前記係合歯１３０から離脱させてロックを解除し、押圧を無くしてバネ力で復帰させることにより係合突部３１を前記係合歯１３０と係合させてロック状態とする、
ことを特徴とするシートトラック装置。 [5] Configuration 5:
In any of Configuration 1 to Configuration 4,
The lock member 30 is a spring 30 in which a linear elastic body is bent in an uneven shape to form an engagement protrusion 31, and both ends 301, 302 are placed on the inner plate surface of the plate member of the standing plate portion 20. Supported,
The engagement receiving portion 130 is an engagement tooth 130 formed by cutting out the lower end edge of the hanging portion 13 in an uneven shape,
The intermediate protrusion 30c of the spring 30 is pressed downward and moved to disengage the engaging protrusion 31 from the engaging tooth 130 to release the lock. The protrusion 31 is engaged with the engagement tooth 130 to be in a locked state.
A seat track device.

［６］構成６：
構成５に於いて、
前記立板部２０に形成された手前側貫通孔２０ｂｈ，２０ａｈと前記側板部２２に形成された奥側貫通孔２２ｈは、貫通孔上壁部内面から貫通孔内へ垂れ下がるように設けられた舌状部２０ｂｈ１（等）を有する、
ことを特徴とするシートトラック装置。 [6] Configuration 6:
In configuration 5,
The front side through-holes 20bh, 20ah formed in the upright plate portion 20 and the back side through-hole 22h formed in the side plate portion 22 are tongues provided so as to hang down from the inner surface of the through-hole upper wall portion into the through-hole. Having a shaped part 20bh1 (etc.),
A seat track device.

［７］構成７：
構成３〜構成６の何れかに於いて、
前記アッパーレール２の底板部２１の延設幅は第２底板部２６の延設幅よりも広く、
前記アッパーレール２の立板部２０を下方へ延長した仮想面は、前記底板部２１直下側の幅が前記第２底板部２６直下側の幅より広くなるように、前記ロアレール１の底壁部１０を分割する、
ことを特徴とするシートトラック装置。 [7] Configuration 7:
In any of Configuration 3 to Configuration 6,
The extended width of the bottom plate portion 21 of the upper rail 2 is wider than the extended width of the second bottom plate portion 26,
The imaginary plane obtained by extending the upright plate portion 20 of the upper rail 2 downward has a bottom wall portion of the lower rail 1 such that the width immediately below the bottom plate portion 21 is wider than the width directly below the second bottom plate portion 26. Divide 10
A seat track device.

構成１は、ロアレール１の底壁部１０とその両縁から立設されたアウタ側壁部１１及びインナ側壁部１６で囲まれる空間にアッパーレール２の下部を収容してレール方向へ移動可能に支持するとともに、ロック部材３０を備えたロック機構３をアッパーレール２とロアレール１に関連付けて有し該ロック機構３によりアッパーレール２を移動禁止状態にロックするシートトラック装置であって、前記ロアレール１は、アウタ側壁部１１の上端縁からインナ側へ延設された天壁部１２と、該天壁部１２の先端縁から下垂された下垂部１３とを有し、前記インナ側壁部１６の高さは前記ロック部材３０をその上方位置にて前記アッパーレール２に取り付け得る高さに設定されており、前記アッパーレール２は、鉛直に設けられるアウタ側板材２０ａとインナ側板材２０ｂを有し上部にてシートを支持する立板部２０と、該立板部２０のアウタ側板材の下端縁からアウタ側へ延設された底板部２１と、該底板部２１の先端縁から上方へ立設されその先端縁が前記ロアレール１のアウタ側壁部１１と天壁部１２と下垂部１３とで構成される溝内に位置される側板部２２とを有し、前記アウタ側板材２０ａよりアウタ側にある前記ロアレール１のアウタ側壁部１１と天壁部１２と下垂部１３とで構成される溝内の、前記アッパーレール２の側板部２２との各間隙に、前記レール方向への移動可能な支持のためのボール４２，４３をそれぞれ設け、前記アウタ側板材２０ａよりインナ側にはボールを設けず、前記ロック機構３は、係合突部３１を有し前記立板部２０の板材のインナ側の板面上に支持されたロック部材３０と、前記立板部２０の板材に形成された手前側貫通孔と、前記下垂部１３に設けられた係合受部１３０とを備え、前記ロック部材３０の係合突部３１を前記手前側貫通孔に挿通した状態で前記係合受部１３０と係合させることによりアッパーレール２を移動禁止状態にロックすることを特徴とするシートトラック装置であるため、小型化・軽量化の要請に応えることができる。
つまり、従来は、ロアレール１とアッパーレール２は両者共に断面が左右対称であったのに対して、本構成では、インナ側壁部１６の高さは前記ロック部材３０をその上方位置にて前記アッパーレール２に取り付け得る高さである。換言すれば、アウタ側壁部１１の背後に隠れている立板部２０のアウタ側板面上の部位に対応するインナ側板面上の部位の大部分は、隠れることなく露出されている。このため、立板部２０のインナ側の板面に対して後加工を容易に施すことができるという効果がある。後加工としては、例えば、アッパーレール２をロアレール１に組み付けた後に、ロック部材３０を取り付ける等の加工を挙げることができる。この場合、アッパーレール２をロアレール１に組み付ける工程を効率良く自動化し易いという効果もある。 In Configuration 1, the lower wall of the lower rail 1 is accommodated in a space surrounded by the bottom wall 10 of the lower rail 1 and the outer side wall 11 and the inner side wall 16 erected from both edges of the lower rail 1 so as to be movable in the rail direction. And a locking mechanism 3 having a lock member 30 associated with the upper rail 2 and the lower rail 1, and a locking mechanism 3 that locks the upper rail 2 in a movement-inhibited state. The top wall 12 extends from the upper edge of the outer side wall 11 to the inner side, and the bottom 13 extends from the top edge of the top wall 12. The height of the inner side wall 16 It is set at a height that can mounted to the upper rail 2 to the locking member 30 in its upper position, the upper rail 2, the outer side plate 20 provided vertically And vertical plate portions 20 for supporting the sheet at the top has an inner side plate 20b, a bottom plate portion 21 extending from the lower edge of the outer side plate of the upstanding plate portion 20 to the outer side, the bottom plate 21 its leading edge is erected from the leading edge upward and a side plate portion 22 which is positioned in the groove formed by the hanging portion 13 and the outer side wall 11 and top wall 12 of the lower rail 1, the In each gap between the side plate portion 22 of the upper rail 2 in the groove formed by the outer side wall portion 11, the top wall portion 12, and the hanging portion 13 of the lower rail 1 located on the outer side from the outer side plate material 20 a , Balls 42 and 43 for supporting movement in the rail direction are provided , no ball is provided on the inner side of the outer side plate member 20a, and the lock mechanism 3 has an engaging projection 31 and has the upright position. On the inner plate surface of the plate member 20 A locking member 30 held; a front side through-hole formed in the plate material of the upright plate portion 20; and an engagement receiving portion 130 provided in the hanging portion 13; Since the seat track device is characterized in that the upper rail 2 is locked in a movement-inhibited state by engaging the engagement receiving portion 130 with the portion 31 inserted through the front side through-hole. It can meet the demand for weight reduction.
That is, conventionally, the lower rail 1 and the upper rail 2 are both symmetrical in cross section, but in this configuration, the height of the inner side wall portion 16 is set so that the lock member 30 is positioned above the upper member. It is a height that can be attached to the rail 2. In other words, most of the portion on the inner side plate surface corresponding to the portion on the outer side plate surface of the upright plate portion 20 hidden behind the outer side wall portion 11 is exposed without being hidden. For this reason, there exists an effect that a post-process can be easily given with respect to the inner side plate | board surface of the standing board part 20. Examples of post-processing include processing such as attaching the lock member 30 after assembling the upper rail 2 to the lower rail 1. In this case, there is an effect that the process of assembling the upper rail 2 to the lower rail 1 can be easily automated efficiently.

構成２は、構成１に於いて、前記インナ側壁部１６の高さは前記下垂部１３の下端より低く設定されていることを特徴とするシートトラック装置であるため、構成１の効果を奏し得る具体的構成例を与えることができる。 Configuration 2 is a seat track device characterized in that, in Configuration 1, the height of the inner side wall portion 16 is set lower than the lower end of the hanging portion 13, the effect of Configuration 1 can be achieved. A specific configuration example can be given.

構成３は、構成２に於いて、前記ロアレールは、さらに、前記インナ側壁部１６の先端縁から前記下垂部１３の下端より低い高さでアウタ側へ延設された第２天壁部１７と、該第２天壁部１７の先端縁から底壁部１０側へ延設された第２下垂部１８を有し、前記アッパーレール２の立板部２０の板材はアウタ側板材２０ａとインナ側板材２０ｂという２枚の平行な板材から成り、前記底板部２１はアウタ側板材２０ａから延設されており、前記アッパーレール２は、さらに前記インナ側板材２０ｂの下端縁からインナ側へ延設された第２底板部２６と、該第２底板部２６の先端縁から上方へ立設されその先端縁が前記ロアレール１のインナ側壁部１６と第２天壁部１７と第２下垂部１８とで構成される溝内に位置される第２側板部２７とを有し、前記ロック部材３０は前記インナ側板材２０ｂのインナ側の板面上に支持されていることを特徴とするシートトラック装置であるため、構成２と同様にインナ側を小型化・軽量化でき、さらに、アッパーレール２の自由度を高めることができる具体的な構成例を与えることができるという効果がある。 In the configuration 3, in the configuration 2, the lower rail further includes a second ceiling wall portion 17 extending from the leading edge of the inner side wall portion 16 to the outer side at a height lower than the lower end of the hanging portion 13. And a second hanging portion 18 extending from the leading edge of the second top wall portion 17 to the bottom wall portion 10 side, and the plate material of the upright plate portion 20 of the upper rail 2 is the outer side plate material 20a and the inner side. The bottom plate portion 21 is extended from the outer side plate material 20a, and the upper rail 2 is further extended from the lower end edge of the inner side plate material 20b to the inner side. The second bottom plate portion 26, and the front end edge of the second bottom plate portion 26 are formed upwardly from the inner edge 16 of the lower rail 1, the second top wall portion 17, and the second hanging portion 18. A second side plate portion 27 located in the configured groove. The locking member 30 is a seat track device characterized in that it is supported on the inner side plate surface of the inner side plate member 20b, so that the inner side can be reduced in size and weight in the same manner as in the configuration 2. Furthermore, there exists an effect that the specific structural example which can raise the freedom degree of the upper rail 2 can be given.

構成４は、構成１〜構成３の何れかに於いて、前記ロック機構３は前記側板部２２に形成された奥側貫通孔２２ｈを更に有し、前記ロック部材３０の係合突部３１を前記手前側貫通孔２０ｂｈ，２０ａｈに挿通した状態で前記係合受部１３０と係合させるとともに前記奥側貫通孔２２ｈに挿通することによりアッパーレール２を移動禁止状態にロックすることを特徴とするシートトラック装置であるため、構成１〜３が奏する効果に加えて、さらに、係合突部３１をアッパーレール側・ロアレール側・アッパーレール側の３点で支持するため、ロックを確実に行うことができる効果がある。 In Configuration 4, in any one of Configurations 1 to 3, the lock mechanism 3 further includes a back side through-hole 22h formed in the side plate portion 22, and the engagement protrusion 31 of the lock member 30 is provided. The upper rail 2 is locked in a movement-inhibited state by being engaged with the engagement receiving portion 130 while being inserted into the front side through holes 20bh and 20ah and being inserted into the back side through hole 22h. Since it is a seat track device, in addition to the effects of configurations 1 to 3, the engagement protrusion 31 is supported at three points on the upper rail side, the lower rail side, and the upper rail side, so that the locking is surely performed. There is an effect that can.

構成５は、構成１〜構成４の何れかに於いて、前記ロック部材３０は線状弾性体を凹凸状に屈曲させて係合突部３１を形成したバネ３０であり、その両端３０１，３０２を前記立板部２０の板材のインナ側の板面上に支持されており、前記係合受部１３０は前記下垂部１３の下端縁を凹凸状に切り欠いて成る係合歯１３０であり、前記バネ３０の中間部３０ｃを下方へ押圧して変移させることにより係合突部３１を前記係合歯１３０から離脱させてロックを解除し、押圧を無くしてバネ力で復帰させることにより係合突部３１を前記係合歯１３０と係合させてロック状態とすることを特徴とするシートトラック装置であるため、部品点数を最少化でき、構成１〜４よりも更に小型化・軽量化の要請に応えることができるとともに、ロック部材の具体的構成を与えることができるという効果がある。 Configuration 5 is any one of Configurations 1 to 4, wherein the lock member 30 is a spring 30 in which a linear elastic body is bent in a concavo-convex shape to form an engagement protrusion 31, and both ends 301, 302 thereof. Is supported on the inner plate surface of the plate material of the upright plate portion 20, and the engagement receiving portion 130 is an engagement tooth 130 formed by cutting out the lower end edge of the hanging portion 13 in an uneven shape, The intermediate protrusion 30c of the spring 30 is pressed downward and moved to disengage the engaging protrusion 31 from the engaging tooth 130 to release the lock. Since the seat track device is characterized in that the protrusion 31 is engaged with the engagement teeth 130 to be in a locked state, the number of parts can be minimized, and the size and weight can be further reduced as compared with the configurations 1 to 4. Lock member that can meet the demand There is an effect that it is possible to provide a specific configuration.

構成６は、構成５に於いて、前記立板部２０に形成された手前側貫通孔２０ｂｈ，２０ａｈと前記側板部２２に形成された奥側貫通孔２２ｈは、貫通孔上壁部内面から貫通孔内へ垂れ下がるように設けられた舌状部２０ｂｈ１（等）を有することを特徴とするシートトラック装置であるため、係合突部３１をアッパーレール側・ロアレール側・アッパーレール側の３点で支持する機能の一部を舌状部２０ｂｈ１（等）により担うことができ、より確実にロックを行うことができる。 Configuration 6 is that in Configuration 5, the front side through holes 20bh and 20ah formed in the standing plate portion 20 and the back side through hole 22h formed in the side plate portion 22 penetrate from the inner surface of the upper wall portion of the through hole. Since the seat track device is characterized by having a tongue-shaped portion 20bh1 (or the like) provided so as to hang down into the hole, the engagement protrusion 31 is provided at three points on the upper rail side, the lower rail side, and the upper rail side. Part of the supporting function can be performed by the tongue-shaped portion 20bh1 (etc.), and locking can be performed more reliably.

構成７は、構成３〜構成６の何れかに於いて、前記アッパーレール２の底板部２１の延設幅は第２底板部２６の延設幅よりも広く、前記アッパーレール２の立板部２０を下方へ延長した仮想面は、前記底板部２１直下側の幅が前記第２底板部２６直下側の幅より広くなるように前記ロアレール１の底壁部１０を分割することを特徴とするシートトラック装置であるため、構成１よりも更に小型化・軽量化の要請に応えることができる。 According to Configuration 7, in any one of Configurations 3 to 6, the extending width of the bottom plate portion 21 of the upper rail 2 is wider than the extending width of the second bottom plate portion 26, and the standing plate portion of the upper rail 2 The virtual surface obtained by extending 20 downward divides the bottom wall portion 10 of the lower rail 1 so that the width immediately below the bottom plate portion 21 is wider than the width directly below the second bottom plate portion 26. Since it is a seat track device, it is possible to meet the demand for further reduction in size and weight than in the first configuration.

以下、図面を参照して本発明の実施の形態を説明する。図１は実施の形態のシートトラック装置の断面図（図４内Ｂ−Ｂ線断面図）、図２は要部斜視図、図３（ａ）は図２の要部を図２内矢視Ａ方向から見た正面図、（ｂ）はバネ３０の斜視図である。また、図４は実施の形態のシートトラック装置の全体（但し、図４では左右一対の片方のみを示す）斜視図である。なお、以下で、アウタとは図１での左方を言い、インナとは右方を言う。 Embodiments of the present invention will be described below with reference to the drawings. 1 is a cross-sectional view of the seat track apparatus according to the embodiment (a cross-sectional view taken along line BB in FIG. 4), FIG. 2 is a perspective view of main parts, and FIG. 3 (a) is a main part of FIG. The front view seen from the A direction, (b) is a perspective view of the spring 30. 4 is an overall perspective view of the seat track apparatus according to the embodiment (however, only one of the pair of left and right is shown in FIG. 4). In the following, “outer” means the left side in FIG. 1, and “inner” means the right side.

図示のシートトラック装置は、ロアレール１の底壁部１０とその両縁から立設された２つの側壁部（アウタ側壁部１１，インナ側壁部１６）で囲まれる空間（溝状空間）に、アッパーレール２の下部を収容して、レール方向へ移動可能に支持する装置である。この移動を可能にするために、アッパーレール２とロアレール１の間隙には、ローラ４１や、ボール４２，４３が設けられている。例えば、底板部２１と底壁部１０の間には、ローラ４１が設けられている。また、アウタ側壁部１１・天壁部１２と側板部２２の先端寄り部位との間にはボール４２が設けられており、下垂部１３と側板部２２の屈曲部位との間にはボール４３が設けられている。
また、図示のシートトラック装置は、アッパーレール２とロアレール１の間に後述のロック機構３が設けられており、これにより、アッパーレール２の移動を所望の位置で停止させて、ロックすることができる。 The illustrated seat track apparatus has an upper portion in a space (groove-shaped space) surrounded by a bottom wall portion 10 of the lower rail 1 and two side wall portions (an outer side wall portion 11 and an inner side wall portion 16) standing upright from both edges thereof. It is a device that accommodates the lower part of the rail 2 and supports it so as to be movable in the rail direction. In order to enable this movement, rollers 41 and balls 42 and 43 are provided in the gap between the upper rail 2 and the lower rail 1. For example, a roller 41 is provided between the bottom plate portion 21 and the bottom wall portion 10. Further, a ball 42 is provided between the outer side wall portion 11 and the top wall portion 12 and a portion near the tip of the side plate portion 22, and a ball 43 is provided between the hanging portion 13 and the bent portion of the side plate portion 22. Is provided.
The illustrated seat track apparatus is provided with a lock mechanism 3 (described later) between the upper rail 2 and the lower rail 1, so that the movement of the upper rail 2 can be stopped and locked at a desired position. it can.

ロアレール１は、床面に平行に設置される底壁部１０と、底壁部１０のアウタ側の縁から垂直に立設されたアウタ側壁部１１と、アウタ側壁部１１の上端縁から略９０度インナ側へ曲げて延設された天壁部１２と、天壁部１２の先端縁から略９０度下方へ曲げて下垂された下垂部１３と、底壁部１０のインナ側の縁からインナ側斜め上方へ鈍角で曲げてその最高高さが下垂部１３の下端より低くなるように延設されたインナ側壁部１６と、インナ側壁部１６の先端縁から最高高さが下垂部１３の下端より低くなるように略９０度曲げてアウタ側斜め上方へ延設された第２天壁部１７と、第２天壁部１７の先端縁から略９０度曲げて底壁部１０側（アウタ側斜め下方）へ延設された第２下垂部１８とを有する。これらの各部から構成されるロアレール１は、例えば、１枚の金属板を折り曲げ形成することにより製造され得る。 The lower rail 1 includes a bottom wall portion 10 installed in parallel to the floor surface, an outer side wall portion 11 erected vertically from an outer side edge of the bottom wall portion 10, and approximately 90 from an upper end edge of the outer side wall portion 11. The ceiling wall portion 12 that is bent and extended to the inner side, the hanging portion 13 that is bent downward from the tip edge of the ceiling wall portion 12 by approximately 90 degrees, and the inner edge from the inner side edge of the bottom wall portion 10. An inner side wall portion 16 that is bent at an obtuse angle obliquely upward and extends so that its maximum height is lower than the lower end of the drooping portion 13, and the lower end of the drooping portion 13 has a maximum height from the leading edge of the inner side wall portion 16. The second top wall portion 17 bent approximately 90 degrees so as to be lower and extended obliquely upward on the outer side, and the bottom wall portion 10 side (outer side) bent approximately 90 degrees from the leading edge of the second top wall portion 17 And a second hanging part 18 extending obliquely downward). The lower rail 1 composed of these parts can be manufactured, for example, by bending a single metal plate.

アッパーレール２は、鉛直に設けられる２枚重ねの板材２０ａ，２０ｂから成り上部にてシート（不図示）を支持する立板部２０と、立板部２０の２枚の板材の一方であるアウタ側板材２０ａの下端縁から略９０度アウタ側へ曲げて延設された底板部２１と、底板部２１のアウタ側の縁（先端縁）から上方へ立設されその先端縁がロアレール１のアウタ側壁部１１と天壁部１２と下垂部１３とで構成される溝（下側開放の溝）内に位置される側板部２２と、立板部２０の２枚の板材の他方であるインナ側板材２０ｂの下端縁から略９０度インナ側へ曲げて延設された第２底板部２６と、第２底板部２６のインナ側の縁（先端縁）から上方へ立設されその先端縁がロアレール１のインナ側壁部１６と第２天壁部１７と第２下垂部１８とで構成される溝（下側開放の溝）内に位置される第２側板部２７とを有する。これらの各部から構成されるアッパーレール２の各板材２０ａ，２０ｂは、それぞれ、例えば、１枚の金属板を折り曲げ形成することにより製造され得る。
なお、アウタ側板材２０ａとインナ側板材２０ｂは、本実施の形態ではそれぞれ別の２枚の板材を用いているが、これに代えて、例えば、１枚の板材を折り曲げて図１内不図示の上方にて連続させたものでよい。
また、アウタ側板材２０ａとインナ側板材２０ｂは、図示の例では２枚重ねに密接されているが、これらが所定の間隙を有していてもよい。 The upper rail 2 is composed of two vertically stacked plate members 20a and 20b, and an upper plate 20 that supports a sheet (not shown) at the upper portion and an outer plate that is one of the two plate members of the vertical plate 20. A bottom plate portion 21 that is bent and extended from the lower end edge of the side plate member 20a toward the outer side by approximately 90 degrees, and an outer edge (tip end edge) of the bottom plate portion 21 that is erected upward, and the front end edge thereof is the outer of the lower rail 1 An inner side which is the other of the two plate members of the side plate portion 22 and the standing plate portion 20 which are positioned in a groove (lower open groove) constituted by the side wall portion 11, the ceiling wall portion 12 and the hanging portion 13. A second bottom plate portion 26 that is bent and extended from the lower end edge of the plate member 20b to the inner side by approximately 90 degrees, and an inner side edge (front end edge) of the second bottom plate portion 26 that is erected upward, and the front end edge thereof is a lower rail. 1 inner side wall portion 16, second ceiling wall portion 17 and second hanging portion 18. And a second side plate portion 27 which is positioned in the groove (the groove of the lower opening) that. Each plate 20a, 20b of the upper rail 2 comprised from these each part can each be manufactured by bending and forming one metal plate, for example.
The outer side plate member 20a and the inner side plate member 20b use two different plate members in the present embodiment, but instead of this, for example, one plate member is bent and not shown in FIG. It may be a continuous one above.
The outer side plate member 20a and the inner side plate member 20b are in close contact with each other in the illustrated example, but they may have a predetermined gap.

なお、上記に於いて、側板部２２の先端（上端）側は、ボール４２や４３を適宜に支持可能なように、適宜に屈曲され、適宜に傾斜されている。
また、上記に於いて、アッパーレール２の底板部２１の延設幅は、第２底板部２６の延設幅よりも広い。同様に、アッパーレール２の立板部２０を下方へ延長した仮想面（板材２０ａと２０ｂの境界面を図１で下方へ延長した面）は、底板部２１の下方側の部分の幅が第２底板部２６の下方側の部分の幅よりも広くなるように、ロアレール１の底壁部１０を分割する。言い換えれば、図１で立板部２０の境界より右側の部分は、左側の部分よりも小さく構成されており、軽量である。 In the above description, the front end (upper end) side of the side plate portion 22 is appropriately bent and appropriately inclined so that the balls 42 and 43 can be appropriately supported.
In the above description, the extending width of the bottom plate portion 21 of the upper rail 2 is wider than the extending width of the second bottom plate portion 26. Similarly, the virtual surface (surface obtained by extending the boundary surface between the plate members 20a and 20b downward in FIG. 1) of the upright plate portion 20 of the upper rail 2 downward is the width of the lower portion of the bottom plate portion 21. The bottom wall portion 10 of the lower rail 1 is divided so as to be wider than the width of the lower side portion of the two bottom plate portion 26. In other words, the portion on the right side from the boundary of the upright plate portion 20 in FIG. 1 is configured to be smaller than the left portion, and is lightweight.

ロック機構は、ロック部材３０と、インナ側板材２０ｂの貫通孔２０ｂｈと、アウタ側板材２０ａの貫通孔２０ａｈと、下垂部１３の下端にレール長手方向で等間隔に形成された複数の切欠きから成る係合歯１３０と、側板部２２に形成された貫通孔２２ｈとから成る。ここで、各貫通孔２０ｂｈ，２０ａｈ，２２ｈの個数はロック部材３０の係合突部３１の個数に応じて決まり、また、それらの高さ位置は係合歯１３０と同等である。 The lock mechanism includes a lock member 30, a through hole 20bh in the inner side plate member 20b, a through hole 20ah in the outer side plate member 20a, and a plurality of notches formed at equal intervals in the rail longitudinal direction at the lower end of the hanging portion 13. The engaging teeth 130 and the through holes 22 h formed in the side plate portion 22. Here, the number of the through holes 20bh, 20ah, and 22h is determined according to the number of the engaging protrusions 31 of the lock member 30, and the height positions thereof are the same as those of the engaging teeth 130.

本実施の形態のシートトラック装置では、ロック部材３０は、図３（ｂ）に示すように金属製の線状弾性体を凹凸状に屈曲形成して成るバネであり、その両端部３０１，３０２は、図２に示すようにそれぞれインナ側板材２０ｂから切り起こし形成された保持部２０１，２０２に係止されることにより、インナ側板材２０ｂに取り付けられている。言い換えれば、インナ側板材２０ｂの板面上に支持されている。これらの保持部２０１，２０２はロアレール１の第２天壁部１７の最高部位よりも高い位置に設定されているため、アッパーレール２をロアレール１に組み付けた後でも、第２天壁部１７の陰に隠れずに露出されている。このため、アッパーレール２をロアレール１に組み付けた後であっても、ロック部材３０をインナ側板材２０ｂの保持部２０１，２０２に取り付けるという、一般には手作業での工程を、容易に行うことができる。 In the seat track apparatus according to the present embodiment, the lock member 30 is a spring formed by bending a metal linear elastic body into a concavo-convex shape as shown in FIG. Are attached to the inner side plate 20b by being locked to holding parts 201 and 202 formed by cutting and raising from the inner side plate 20b as shown in FIG. In other words, it is supported on the plate surface of the inner side plate 20b. Since these holding portions 201 and 202 are set at a position higher than the highest portion of the second top wall portion 17 of the lower rail 1, even after the upper rail 2 is assembled to the lower rail 1, It is exposed without being hidden behind it. For this reason, even after the upper rail 2 is assembled to the lower rail 1, it is possible to easily perform a generally manual process of attaching the lock member 30 to the holding portions 201 and 202 of the inner side plate member 20 b. it can.

また、アッパーレール２をロアレール１に組み付ける工程は、自動化が比較的容易であるという事情があるため、アッパーレール２とロアレール１を自動化工程で組み付けた後に、ロック部材３０を取り付ける手作業の工程を配して、全体の作業効率を向上させるようにすることもできる。 Further, since the process of assembling the upper rail 2 to the lower rail 1 is relatively easy to automate, a manual process of attaching the lock member 30 after assembling the upper rail 2 and the lower rail 1 in the automation process is performed. To improve the overall work efficiency.

ロック部材（バネ）３０をインナ側板材２０ｂの保持部２０１，２０２に係止させることにより取り付けた状態では、係合突部３１は、インナ側板材２０ｂ及びアウタ側板材２０ａの各貫通孔２０ｂｈ，２０ａｈに挿通され、下垂部１３の下端の切欠き（係合歯１３０）に係合され、更に、側板部２２の貫通孔２２ｈに挿通された状態となる。言い換えれば、係合突部３１は、その長さ方向に関して、ロアレール側の部材（下垂部１３の係合歯１３０の切欠き端面）によって支持される部位の両側を、アッパーレール側の部材（立板部２０の貫通孔２０ｂｈ・２０ａｈの内壁面と、側板部２２の貫通孔２２ｈの内壁面）によって支持（３点支持）されることとなり、安定したロックが実現される。 In a state in which the lock member (spring) 30 is attached by being locked to the holding portions 201 and 202 of the inner side plate member 20b, the engagement protrusion 31 is formed in each of the through holes 20bh and the inner side plate member 20b and the outer side plate member 20a. It is inserted into 20 ah, engaged with a notch (engagement tooth 130) at the lower end of the hanging part 13, and further inserted into the through hole 22 h of the side plate part 22. In other words, the engaging protrusion 31 has, in the length direction thereof, the upper rail side member (the standing rail) on both sides of the portion supported by the lower rail side member (the notch end surface of the engaging tooth 130 of the hanging part 13). It will be supported (three-point support) by the inner wall surfaces of the through holes 20bh and 20ah of the plate part 20 and the inner wall surfaces of the through holes 22h of the side plate part 22, thereby realizing a stable lock.

なお、係合突部３１を各貫通孔２０ｂｈ，２０ａｈ，２２ｈに挿通する際には、隣接する係合突部３１，３１の先端を連結する先端連結部３１ａは、ロック部材（バネ）３０を若干押し下げることにより、各貫通孔２０ｂｈ，２０ａｈ，２２ｈの上壁部内面からそれぞれ各貫通孔内へ垂れ下がるように設けられている各舌状部（２０ｂｈ１等）の下方の間隙（各舌状部と各貫通孔２０ｂｈ，２０ａｈ，２２ｈの下壁部内面との間隙）を通過される。また、挿通後、押し下げが解除されると、係合突部３１及び先端連結部３１ａはバネ力により上方位置へ復帰するため、以後、先端連結部３１ａは奥側貫通孔２２ｈの舌状部により係止されることとなり、抜けが防止される。このため、ロック状態を確実に維持することができるようになる。 When the engaging protrusion 31 is inserted into each of the through holes 20bh, 20ah, and 22h, the tip connecting part 31a that connects the tips of the adjacent engaging protrusions 31 and 31 has a lock member (spring) 30 attached thereto. By slightly pushing down, gaps below each tongue-like part (20bh1 etc.) provided so as to hang down from the inner surface of the upper wall part of each through-hole 20bh, 20ah, 22h into each through-hole (20bh1, etc.) Each through hole 20bh, 20ah, 22h is passed through the inner surface of the lower wall portion. Further, when the push-down is released after the insertion, the engaging protrusion 31 and the tip connecting portion 31a are returned to the upper position by the spring force, and hence the tip connecting portion 31a is subsequently moved by the tongue-like portion of the back side through hole 22h. It will be locked and it will be prevented from coming off. For this reason, a locked state can be maintained reliably.

ロック解除・ロックについて説明する。
図４に示すハンドル５１を引き上げると、ハンドル５１に連携されている解除レバー５２が、ピン５３を軸として、図４で反時計周りに回動する。これにより、解除レバー５２の中でピン５３を挟み反対側に位置する部分が下方へ変移して、その先端部５２０（図１参照）が、ロック部材（バネ）３０の中央部３０ｃを押し下げる。これにより、ロック部材（バネ）３０の係合突部３１が下方へ変移して、ロアレール１の下垂部１３の係合歯１３０から下方へ離脱する。即ち、ロックが解除される。 The unlock / lock will be described.
When the handle 51 shown in FIG. 4 is pulled up, the release lever 52 linked to the handle 51 rotates counterclockwise in FIG. As a result, the portion of the release lever 52 that is located on the opposite side of the pin 53 is shifted downward, and the tip portion 520 (see FIG. 1) pushes down the central portion 30c of the lock member (spring) 30. As a result, the engaging protrusion 31 of the lock member (spring) 30 shifts downward and is released downward from the engaging tooth 130 of the hanging part 13 of the lower rail 1. That is, the lock is released.

次に、ハンドル５１を離すと、ロック部材（バネ）３０は、そのバネ力によって元の状態へ復元する。即ち、ロック部材（バネ）３０の係合突部３１が上方へ変移して、ロアレール１の下垂部１３の係合歯１３０に進入し、再び係合状態（ロック状態）となる。
なお、ピン５３に巻回されているスプリング５３０は、ロック部材（ばね）３０を常時軽く押さえつけるための付勢力を付与するものである。 Next, when the handle 51 is released, the lock member (spring) 30 is restored to the original state by the spring force. That is, the engagement protrusion 31 of the lock member (spring) 30 is shifted upward, enters the engagement tooth 130 of the hanging part 13 of the lower rail 1, and is again engaged (locked).
Note that the spring 530 wound around the pin 53 imparts an urging force for always lightly pressing the lock member (spring) 30.

上記では、ロック部材３０が図３（ｂ）に示すようなバネである場合を説明したが、バネ３０に代えて公知のロック部材を用いることもできる。例えば、ロック爪を備えたロック部材を、アッパーレール２の立板部２０のインナ側板材２０ｂに回動軸等を用いて揺動自在に支持し、これを、立板部２０の貫通孔と、下垂部１３の貫通孔もしくは下側開放の切欠きと、側板部２２の貫通孔とに挿通して、ロックするように構成してもよい。 Although the case where the lock member 30 is a spring as shown in FIG. 3B has been described above, a known lock member can be used instead of the spring 30. For example, a lock member provided with a lock claw is supported swingably on the inner side plate member 20b of the upright plate portion 20 of the upper rail 2 using a rotation shaft or the like. Alternatively, the penetrating portion 13 may be inserted into the through hole or the lower open cutout and the through hole of the side plate portion 22 to be locked.

ロック部材として、上述した実施の形態のように、金属製の線状弾性体を凹凸状に屈曲形成して成るバネを用いると、バネ３０の係合突部３１がバネ力によって係合歯１３０の切欠き端面にしっかりと押圧されて隙間なく密接されるため、ロック状態でガタツキを生じないという効果がある。
また、線状弾性体を円形断面としたとき、係合突部３１の径を、強度を確保したままで小さくできるため、所要のロック強度を確保したままでロック歯１３０のレール方向のピッチを小さくできる。即ち、ロック位置の段階を小さくできる。 When a spring formed by bending a metal linear elastic body in a concavo-convex shape as in the above-described embodiment is used as the lock member, the engagement protrusion 31 of the spring 30 is engaged with the engagement teeth 130 by the spring force. Since it is firmly pressed to the notch end face and is brought into close contact with no gap, there is an effect that no rattling occurs in the locked state.
Further, when the linear elastic body has a circular cross section, the diameter of the engagement protrusion 31 can be reduced while ensuring the strength, so the pitch of the lock teeth 130 in the rail direction can be maintained while maintaining the required lock strength. Can be small. That is, the step of the lock position can be reduced.

実施の形態のシートトラック装置の要部断面図。FIG. 3 is a cross-sectional view of a main part of the seat track device according to the embodiment. 実施の形態のシートトラック装置の要部斜視図。The principal part perspective view of the seat track apparatus of an embodiment. （ａ）は図２の要部を図２内矢視Ａ方向から見た正面図、（ｂ）はバネ３０の斜視図。(A) is the front view which looked at the principal part of FIG. 2 from the arrow A direction in FIG. 2, (b) is a perspective view of the spring 30. FIG. 実施の形態のシートトラック装置の斜視図。1 is a perspective view of a seat track device according to an embodiment.

Explanation of symbols

１ロアレール
１０底壁部
１１アウタ側壁部
１２天壁部
１３下垂部
１３０係合受部／係合歯
１６インナ側壁部
１７第２天壁部
１８第２下垂部
２アッパーレール
２０立板部
２０１，２０２保持部
２０ａアウタ側板材
２０ａｈ手前側貫通孔
２０ｂインナ側板材
２０ｂｈ手前側貫通孔
２１底板部
２２側板部
２２ｈ奥側貫通孔
２６第２底板部
２７第２側板部
３ロック機構
３０ロック部材／バネ
３０ｃバネの中間部
３０１，３０２バネの端部
３１係合突部
３１ａ先端連結部
４１ローラ
４２ボール
４３ボール DESCRIPTION OF SYMBOLS 1 Lower rail 10 Bottom wall part 11 Outer side wall part 12 Top wall part 13 Bottom part 130 Engagement receiving part / engagement tooth 16 Inner side wall part 17 Second top wall part 18 Second bottom part 2 Upper rail 20 Standing plate part 201, 202 Holding portion 20a Outer side plate member 20ah Front side through hole 20b Inner side plate member 20bh Front side through hole 21 Bottom plate portion 22 Side plate portion 22h Back side through hole 26 Second bottom plate portion 27 Second side plate portion 3 Lock mechanism 30 Lock member / spring 30c Spring intermediate portion 301, 302 Spring end 31 Engagement protrusion 31a Tip connecting portion 41 Roller 42 Ball 43 Ball

Claims

A lock provided with a lock member while accommodating the lower part of the upper rail in a space surrounded by the bottom wall part of the lower rail and the outer side wall part and the inner side wall part erected from both edges thereof so as to be movable in the rail direction. A seat track device that has a mechanism associated with an upper rail and a lower rail and locks the upper rail in a movement-inhibited state by the lock mechanism,
The lower rail has a ceiling wall portion extending from the upper end edge of the outer side wall portion to the inner side, and a hanging portion that is suspended from the tip edge of the ceiling wall portion, and the height of the inner side wall portion is It is set to a height at which the lock member can be attached to the upper rail at its upper position,
The upper rail has an outer side plate material and an inner side plate material provided vertically, and a vertical plate portion that supports the seat at the upper portion, and extends from the lower end edge of the outer side plate material of the vertical plate portion to the outer side . A bottom plate portion, and a side plate portion standing upward from a tip edge of the bottom plate portion, the tip edge being positioned in a groove formed by the outer side wall portion, the top wall portion, and the hanging portion of the lower rail. ,
In the groove formed in the outer side wall and the top wall of the lower rail in the outer side of the outer side plate and the hanging portion, each gap between side plate portion of the upper rail, movably to the rail direction Ball for each support is provided , the ball is not provided on the inner side from the outer side plate material,
The lock mechanism has an engagement protrusion and is supported on a plate surface on the inner side of the plate material of the standing plate portion, a front side through-hole formed in the plate material of the standing plate portion, The upper rail is prohibited from moving by being engaged with the engagement receiving portion in a state where the engagement protrusion of the lock member is inserted into the front through hole. To lock in,
A seat track device.

In claim 1,
The height of the inner side wall portion is set lower than the lower end of the hanging portion,
A seat track device.

In claim 2,
The lower rail further includes a second top wall portion extending from the leading edge of the inner side wall portion to the outer side at a height lower than the lower end of the hanging portion, and a bottom wall extending from the leading edge of the second ceiling wall portion. A second hanging part extending to the part side,
The plate material of the upright plate portion of the upper rail is composed of two parallel plate materials, an outer side plate material and an inner side plate material, and the bottom plate portion is extended from the outer side plate material,
The upper rail further includes a second bottom plate portion extending from the lower end edge of the inner side plate member toward the inner side, and an upper end standing upward from the front end edge of the second bottom plate portion. A second side plate portion located in a groove formed by the side wall portion, the second ceiling wall portion, and the second hanging portion,
The lock member is supported on the inner side plate surface of the inner side plate material,
A seat track device.

In any one of Claims 1-3,
The lock mechanism further includes a back side through hole formed in the side plate portion, and engages the engagement protrusion with the engagement receiving portion in a state where the engagement protrusion of the lock member is inserted into the front side through hole. Locking the upper rail in a movement-inhibited state by inserting it into the back side through-hole,
A seat track device.

In any one of Claims 1-4,
The lock member is a spring in which a linear elastic body is bent in a concavo-convex shape to form an engaging protrusion, and both ends thereof are supported on the inner plate surface of the plate material of the standing plate portion,
The engagement receiving portion is an engagement tooth formed by cutting out a lower end edge of the hanging portion in an uneven shape,
By pressing the middle part of the spring downward and shifting it, the engaging protrusion is released from the engaging tooth to release the lock, and the pressure is released and the engaging protrusion is restored by spring force. Engage with engaging teeth to lock
A seat track device.

In claim 5,
The front side through hole formed in the standing plate part and the back side through hole formed in the side plate part have a tongue-like part provided so as to hang down from the inner surface of the through hole upper wall part into the through hole,
A seat track device.

In any one of Claims 3-6,
The extending width of the bottom plate portion of the upper rail is wider than the extending width of the second bottom plate portion,
The virtual surface obtained by extending the upright plate portion of the upper rail downward divides the bottom wall portion of the lower rail so that the width immediately below the bottom plate portion is wider than the width directly below the second bottom plate portion.
A seat track device.