JP4580835B2 - Vehicle seat back-forward mechanism - Google Patents

Vehicle seat back-forward mechanism Download PDF

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Publication number
JP4580835B2
JP4580835B2 JP2005212289A JP2005212289A JP4580835B2 JP 4580835 B2 JP4580835 B2 JP 4580835B2 JP 2005212289 A JP2005212289 A JP 2005212289A JP 2005212289 A JP2005212289 A JP 2005212289A JP 4580835 B2 JP4580835 B2 JP 4580835B2
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Prior art keywords
seat back
arm
sector gear
seat
return
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JP2007030536A (en
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アベリー コーリ
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Johnson Controls Technology Co
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Johnson Controls Technology Co
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
    • B60N2/206—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access to a position in which it can be used as a support for objects, e.g. as a tray
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/2213—Gear wheel driven mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2002/924—Positioning and locking mechanisms using electric or hydraulic energy

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

本発明は、車両用シートのシートバック前倒し機構に関するものである。   The present invention relates to a seat back forward tilt mechanism for a vehicle seat.

車両用シートのシートバックは、シートバックの後方に位置する荷室の拡大利用や、後席乗員の乗り降り等のために、前倒れ自在になっている。シートバックにはアームが固設され、このアームがフロア又はシートクッションのフレームに対して、着座位置から前傾位置まで回動軸を中心に回動自在に支持されている。アームとフレームとの間には、アームを前倒れ側へ付勢する付勢手段が設けられていると共に、アームを着座位置でロックするロック手段が設けられている。また、手動で操作する操作レバーが設けられ、この操作レバーを操作することにより、ロック手段を解除し、付勢手段の付勢力により、シートバックを勢い良く前側へ倒すことができる。シートバックを元の位置に復帰させる場合は、手でシートバックを引き起こす。このような手動操作式のシートバック前倒し機構は、シートバックを素早く前倒しできるメリットがある（例えば、特許文献１参照）。
特開２０００−３３５２９２号公報 The seat back of the vehicle seat can be tilted forward in order to expand the use of the luggage compartment located behind the seat back and to get on and off the rear seat occupant. An arm is fixed to the seat back, and this arm is supported with respect to the frame of the floor or the seat cushion so as to be rotatable around a rotation axis from a seating position to a forward tilt position. Between the arm and the frame is provided a biasing means for biasing the arm forward and a locking means for locking the arm at the seating position. In addition, an operation lever that is manually operated is provided, and by operating this operation lever, the lock means can be released, and the seat back can be pushed forward vigorously by the urging force of the urging means. When returning the seat back to the original position, manually raise the seat back. Such a manually operated seat back advance mechanism has an advantage that the seat back can be quickly moved forward (see, for example, Patent Document 1).
JP 2000-335292 A

しかしながら、このような従来の技術にあっては、操作レバーを動かすだけで、スプリングの付勢力によりシートバックを素早く前倒しできるものの、手動による操作方式のため、運転席付近に設けられたスイッチ等による遠隔操作が行えず、必ずシートの着座乗員か、シート近くにいる人が、操作レバーを操作する必要があった。   However, in such a conventional technique, the seat back can be quickly moved forward by the urging force of the spring only by moving the operation lever. However, because of the manual operation method, a switch or the like provided near the driver's seat is used. Remote control was not possible, and a seated occupant or a person near the seat had to operate the control lever.

手動操作方式に代えて、電動操作方式にすると、電動モータの駆動力をアームに伝達して、シートバックの前倒しと復帰を行う構造になるため、運転席付近に設けられたスイッチにより遠隔操作できるものの、シートバックを前倒しする速度は電動モータの回転速度に負うところがあり、シートバックを前倒しする速度は遅くなる。   If the electric operation method is used instead of the manual operation method, the driving force of the electric motor is transmitted to the arm and the seat back is moved forward and backward, so that it can be remotely operated by a switch provided near the driver's seat. However, the speed at which the seat back is moved forward depends on the rotational speed of the electric motor, and the speed at which the seat back is moved forward becomes slower.

本発明は、このような従来の技術に着目してなされたものであり、遠隔操作可能な電動操作方式でありながら、手動操作方式と同様の素早いシートバックの前倒しが可能な車両用シートのシートバック前倒し機構を提供するものである。   The present invention has been made by paying attention to such a conventional technique, and is a seat for a vehicle seat that can be moved forward as quickly as the manual operation method while being an electrically operated operation method that can be remotely operated. A back-forward mechanism is provided.

請求項１記載の発明は、シートバックに固設されたアームを、フロア又はシートクッションに固設されたフレームに対して、シートバックの着座位置から前傾位置まで回動軸を中心に回動自在に支持してなり、該アームには、該アームを前倒れ側へ付勢する付勢手段と、シートバックの前傾対応位置及び復帰対応位置の間で回動自在なセクタギアと、該アームの前傾位置でセクタギアの側端と当接すると共に復帰方向へ移動するセクタギアにより押されてアームを着座位置に復帰させる突起部とをそれぞれ備えてなり、前記フレームには、前記アームを着座位置でロック自在な電動ロック手段と、前記セクタギアと噛合することで該セクタギアを前倒れ方向及び復帰方向へ回動させるピニオンギア及び前記セクタギアを復帰対応位置へ回動させた後にシートバックの前傾対応位置まで反転させるようにピニオンギアを回動させる電動手段とを設けてなることを特徴とする。   According to the first aspect of the present invention, the arm fixed to the seat back is rotated around the rotation axis from the seat back seating position to the forward tilt position with respect to the frame fixed to the floor or the seat cushion. The arm includes a biasing means that biases the arm forward and a sector gear that is rotatable between a forward tilt corresponding position and a return corresponding position of the seat back, and the arm. And a projection that is brought into contact with the side edge of the sector gear at the forwardly inclined position and that is pushed by the sector gear that moves in the return direction to return the arm to the seating position. A lockable electric lock means and a pinion gear that rotates the sector gear in the forward tilt direction and the return direction by meshing with the sector gear and the sector gear are rotated to the return corresponding position. The pinion gear to reverse to forward tilting corresponding position of the seat back, characterized by comprising providing an electric means for rotating the after.

請求項２記載の発明は、付勢手段及び電動ロック手段と、セクタギア及びピニオンギアとを、それぞれアームの表裏別々に設けたことを特徴とする。   The invention described in claim 2 is characterized in that the urging means, the electric lock means, the sector gear and the pinion gear are provided separately on the front and back of the arm, respectively.

請求項１記載の発明によれば、シートバックのアームに形成した突起部は、前傾位置になるまでは、セクタギアと当接しないため、電動ロック手段を遠隔操作により解除することにより、シートバックは付勢手段により勢い良く前倒れすることが可能となる。そして、電動手段でピニオンギアを回転させ、セクタギアで復帰方向へ突起部を押せば、アームを着座位置に復帰させることができる。復帰後、電動ロック手段を再びロック状態にすれば、着座位置が維持される。復帰後、セクタギアはピニオンギアにより前傾対応位置まで戻されるため、その後の素早い前倒しが可能となる。   According to the first aspect of the present invention, the projection formed on the arm of the seat back does not come into contact with the sector gear until the forward tilt position is reached. It is possible to fall forward vigorously by the biasing means. Then, the arm can be returned to the seating position by rotating the pinion gear with the electric means and pushing the projection in the return direction with the sector gear. After returning, the seating position is maintained if the electric lock means is again locked. After the return, the sector gear is returned to the position corresponding to the forward tilt by the pinion gear, so that it can be quickly moved forward.

請求項２記載の発明によれば、付勢手段及び電動ロック手段と、セクタギア及びピニオンギアとを、それぞれアームの表裏別々に設けたため、それぞれの機構を設置するためのスペースを十分に確保でき、互いが干渉することはない。   According to the invention of claim 2, since the biasing means and the electric lock means, the sector gear and the pinion gear are provided separately on the front and back of the arm, respectively, a sufficient space for installing each mechanism can be secured, They do not interfere with each other.

本発明は、遠隔操作可能な電動操作方式でありながら、手動操作方式と同様の素早いシートバックの前倒しが可能な車両用シートのシートバック前倒し機構を提供するという目的を、シートバックに固設されたアームを、フロア又はシートクッションに固設されたフレームに対して、シートバックの着座位置から前傾位置まで回動軸を中心に回動自在に支持してなり、該アームには、該アームを前倒れ側へ付勢する付勢手段と、シートバックの前傾対応位置及び復帰対応位置の間で回動自在なセクタギアと、該アームの前傾位置でセクタギアの側端と当接すると共に復帰方向へ移動するセクタギアにより押されてアームを着座位置に復帰させる突起部とをそれぞれ備えてなり、前記フレームには、前記アームを着座位置でロック自在な電動ロック手段と、前記セクタギアと噛合することで該セクタギアを前倒れ方向及び復帰方向へ回動させるピニオンギア及び前記セクタギアを復帰対応位置へ回動させた後にシートバックの前傾対応位置まで反転させるようにピニオンギアを回動させる電動手段とを設けてなることで、実現した。以下、本発明の実施例を図面に基づいて説明する。   The object of the present invention is to provide a seat back forward mechanism for a vehicle seat that can be moved forward as quickly as the manual operation method, while being an electric operation method that can be operated remotely. The arm is supported with respect to a frame fixed to the floor or the seat cushion so as to be rotatable about a rotation axis from a seat back seating position to a forward tilting position. Urging means for urging the vehicle to the forward tilt side, a sector gear that can rotate between the forward tilt corresponding position and the return corresponding position of the seat back, and the side end of the sector gear at the forward tilt position of the arm and returning And a projection that is pushed by a sector gear that moves in the direction to return the arm to the seating position, and the frame has an electric motor that can lock the arm at the seating position. And a pinion gear that meshes with the sector gear to rotate the sector gear in the forward tilt direction and the return direction, and rotates the sector gear to the return corresponding position and then reverses the seat back to the forward tilt corresponding position. This is realized by providing an electric means for rotating the pinion gear. Embodiments of the present invention will be described below with reference to the drawings.

図１〜図６は、本発明の一実施例を示す図である。この実施例の車両用シートは、ワゴン車の後席シートに関するものである。フロア１に固定されたシートクッション２と、フロア１に固定されたフレーム３に支持されたシートバック４とから構成されている。   1-6 is a figure which shows one Example of this invention. The vehicle seat of this embodiment relates to the rear seat of the wagon car. The seat cushion 2 is fixed to the floor 1 and the seat back 4 is supported by a frame 3 fixed to the floor 1.

シートバック４の左右の下端部には、アーム５がそれぞれ延設され、このアーム５がフレーム３に対して、回動軸６を中心に前後に回動自在に支持されている。回動軸６付近は、カバー２０（図１参照）にて覆われている。従って、シートバック４は、シートバック４の後方(図１で右側)にある荷室を拡大利用したりするために、通常の着座位置から前傾位置まで前倒しすることができる。   Arms 5 are respectively provided at the left and right lower ends of the seat back 4, and the arms 5 are supported by the frame 3 so as to be pivotable back and forth around the pivot shaft 6. The vicinity of the rotating shaft 6 is covered with a cover 20 (see FIG. 1). Accordingly, the seat back 4 can be moved forward from the normal seating position to the forward tilt position in order to expand and use the luggage compartment behind the seat back 4 (right side in FIG. 1).

左右両側のアーム５のそれぞれ後席シートの外側(図１の手前側)には、フレーム３に固設されたブラケット７が位置し、そのブラケット７に保持片８が固定されている。ブラケット７はフレーム３の一部で、フレーム３を構成する。そして、このブラケット７とアーム５から後席シートの外側(図１の手前側)に突出した突片９との間に、アーム５を前(図１の左側)倒れ方向に付勢するスプリング（付勢手段）１０が設けられている。   Brackets 7 fixed to the frame 3 are positioned on the outer sides (front side in FIG. 1) of the rear seats of the left and right arms 5, and holding pieces 8 are fixed to the brackets 7. The bracket 7 is a part of the frame 3 and constitutes the frame 3. Then, between the bracket 7 and the projecting piece 9 protruding from the arm 5 to the outside of the rear seat (the front side in FIG. 1), a spring for biasing the arm 5 in the forward (left side in FIG. 1) tilting direction ( (Biasing means) 10 is provided.

前記アーム５の後席シートの外側(図１の手前側)から内側(図１の向こう側)に突き抜けて支持されてなる前記回動軸６には、アーム５と一緒に回動するレバー１１が設けられている。このレバー１１の先端には、リンク１２が設けられ、このリンク１２は、電動ロック手段１３のピストン１４にて押されている。ピストン１４が突出している時はロック状態で、後退している時は解除状態である。   A lever 11 that rotates together with the arm 5 is supported on the rotating shaft 6 that is supported by penetrating from the outside (front side in FIG. 1) to the inside (the other side in FIG. 1) of the rear seat of the arm 5. Is provided. A link 12 is provided at the tip of the lever 11, and the link 12 is pushed by the piston 14 of the electric lock means 13. When the piston 14 protrudes, it is in a locked state, and when it is retracted, it is in a released state.

一方、アーム５の後席シートの内側(図１の向こう側)には、図２に示すように、扇形をしたベース１５が固定されている。このベース１５は、アーム５を貫通して裏側のブラケット７と連結されており、不動である。ベース１５のアーム５を貫通する部分には、セクタギア１６が回動自在に支持されている。セクタギア１６は、回動軸６を中心にした状態で回動し、およそ前記ベース１５以外の範囲において前後に回動できる。   On the other hand, a fan-shaped base 15 is fixed inside the rear seat of the arm 5 (the other side in FIG. 1), as shown in FIG. The base 15 passes through the arm 5 and is connected to the back bracket 7 and is immovable. A sector gear 16 is rotatably supported at a portion of the base 15 that passes through the arm 5. The sector gear 16 rotates around the rotation shaft 6 and can rotate back and forth in a range other than the base 15.

セクタギア１６の下方のフレーム３には、図２に示すように、セクタギア１６に係合するピニオンギア１７が設けられている。ピニオンギア１７は一体的に設けられたモータ（電動手段）１８により、正逆方向へ回転することができる。ピニオンギア１７が回転することにより、セクタギア１６は、後側に回動した前傾対応位置（図２、図５参照）と、前側に回動した復帰対応位置（図６）とに移動可能である。   As shown in FIG. 2, a pinion gear 17 that engages with the sector gear 16 is provided on the frame 3 below the sector gear 16. The pinion gear 17 can be rotated in the forward and reverse directions by an integrally provided motor (electric means) 18. As the pinion gear 17 rotates, the sector gear 16 can move between a forward tilt corresponding position (see FIGS. 2 and 5) rotated rearward and a return corresponding position (FIG. 6) rotated forward. is there.

そして、アーム５の前側には、図２に示すように、突起部１９が形成されている。この突起部１９は、シートバック４が着座位置にある時(図２)は、セクタギア１６から離れているが、シートバック４が前傾位置にある時(図５)は、セクタギア１６の側端に当接するようになっている。   Further, as shown in FIG. 2, a protrusion 19 is formed on the front side of the arm 5. The protrusion 19 is separated from the sector gear 16 when the seat back 4 is in the seating position (FIG. 2), but when the seat back 4 is in the forward tilt position (FIG. 5), the side edge of the sector gear 16 is provided. It comes to contact with.

以上のように、この実施例では、スプリング１０及び電動ロック手段１３のグループと、セクタギア１６及びピニオンギア１７のグループとを、それぞれアーム５の表裏別々に設けたため、それぞれの機構を設置するためのスペースを十分に確保でき、互いが干渉することはない。   As described above, in this embodiment, the group of the spring 10 and the electric lock means 13 and the group of the sector gear 16 and the pinion gear 17 are provided separately on the front and back of the arm 5, respectively. Sufficient space can be secured so that they do not interfere with each other.

次に、この実施例の作用を説明する。   Next, the operation of this embodiment will be described.

着座状態（図２参照）：
シートバック４は、着座位置が保持されている。すなわち、シートバック４には、スプリング１０により前倒れ方向への付勢力が付与されているが、電動ロック手段１３のピストン１４が、アーム５と一体的に回動するレバー１１のリンク１２を押しているため（ロック状態）、シートバック４はスプリング１０の付勢力に抗して、着座位置が維持される。シートバック４の着座位置では、セクタギア１６は、ベース１５の後端に当接した着座対応位置になっており、セクタギア１６と、アーム５の突起部１９との間には、間隔が確保されている。 Sitting state (see Figure 2):
The seat back 4 is held at the seating position. That is, the seatback 4 is applied with an urging force in the forward tilt direction by the spring 10, but the piston 14 of the electric lock means 13 pushes the link 12 of the lever 11 that rotates together with the arm 5. Therefore, the seat back 4 is maintained in the seating position against the urging force of the spring 10. At the seating position of the seat back 4, the sector gear 16 is in a seating-corresponding position in contact with the rear end of the base 15, and a space is secured between the sector gear 16 and the protrusion 19 of the arm 5. Yes.

前傾状態（図５参照）：
シートバック４を前傾状態にする場合には、運転席付近のスイッチ（図示せず）を遠隔操作する。すると、電動ロック手段１３のピストン１４が後退し、アーム５と一体的に回動するレバー１１のリンク１２を押す力がなくなるため（解除状態）、シートバック４がスプリング７の付勢力により素早く前側に倒れて前傾位置となる。アーム５の突起部１９とセクタギア１６との間には、間隔が設けられているため、シートバック４は突起部１９がセクタギア１６と当接する位置まで素早く前側へ倒れる。このように、遠隔操作可能な電動操作方式でありながら、手動操作方式と同様の素早いシートバック４の前倒しが可能となる。 Forward tilted state (see Fig. 5):
When the seat back 4 is tilted forward, a switch (not shown) near the driver's seat is remotely operated. Then, the piston 14 of the electric lock means 13 moves backward, and the force pushing the link 12 of the lever 11 that rotates integrally with the arm 5 disappears (released state), so the seat back 4 is quickly moved forward by the biasing force of the spring 7. Falls to the forward tilt position. Since a gap is provided between the projection 19 of the arm 5 and the sector gear 16, the seat back 4 quickly falls forward to a position where the projection 19 contacts the sector gear 16. In this manner, the seatback 4 can be quickly moved forward in the same manner as the manual operation method while being an electrically operated operation method that can be operated remotely.

復帰状態（図６参照）：
前傾位置から着座位置に戻す場合は、モータ１８によりピニオンギア１７を回転させ、セクタギア１６を前側の復帰対応位置まで回転させる。セクタギア１６の側端には突起部１９が当接しているため、突起部１９がセクタギア１６によりベース１５の前端に当接するまで復帰方向へ押され、シートバック４が元の着座位置になる。シートバック４が着座位置になると、電動ロック手段１３が再びロック状態となる。その後、ピニオンギア１７は逆方向へ回転し、セクタギア１６を前傾対応位置まで戻す。そうすることにより、その後の素早い前倒しが可能となる。 Returned state (see FIG. 6):
When returning from the forward tilt position to the seating position, the pinion gear 17 is rotated by the motor 18 and the sector gear 16 is rotated to the front return corresponding position. Since the protruding portion 19 is in contact with the side end of the sector gear 16, the protruding portion 19 is pushed in the returning direction until the protruding portion 19 contacts the front end of the base 15 by the sector gear 16, and the seat back 4 becomes the original seating position. When the seat back 4 is in the seating position, the electric lock means 13 is again locked. Thereafter, the pinion gear 17 rotates in the reverse direction and returns the sector gear 16 to the forward tilt corresponding position. By doing so, it is possible to quickly advance ahead.

以上の実施例では、シートバック４を前倒しする構造だけを説明したが、別の構造として、シートバック４をシートクッション２に支持し、シートクッション２をスライド機構により前後移動自在な状態でフロア１に支持し、シートバック４の前倒しと共にシートクッション２を前方へスライドさせる所謂ウォークイン構造にしても良い。   In the above embodiment, only the structure in which the seat back 4 is moved forward has been described. However, as another structure, the seat 1 is supported by the seat cushion 2, and the seat cushion 2 can be moved back and forth by the slide mechanism. It is also possible to adopt a so-called walk-in structure in which the seat cushion 2 is slid forward together with the seat back 4 being tilted forward.

本発明の一実施例に係るシートを示す側面図。The side view which shows the sheet | seat which concerns on one Example of this invention. 図１の前倒し機構の着座状態を示す側面図。The side view which shows the seating state of the forward-turning mechanism of FIG. 図１の前倒し機構の裏側の構造を示す斜視図。The perspective view which shows the structure of the back side of the forward-turning mechanism of FIG. 図３の前倒し機構の裏側の構造を示す分解斜視図。The disassembled perspective view which shows the structure of the back side of the forward-turning mechanism of FIG. 図２の前倒し機構の前傾状態を示す側面部。The side part which shows the forward-tilting state of the forward tilt mechanism of FIG. 図５の前倒し機構の復帰状態を示す側面部。The side part which shows the return state of the forward tilt mechanism of FIG.

符号の説明Explanation of symbols

１ フロア
２ シートクッション
３ フレーム
４ シートバック
５ アーム
６ 回動軸
１０ スプリング（付勢手段）
１３ 電動ロック手段
１６ セクタギア
１７ ピニオンギア
１８ モータ（電動手段）
１９ 突起部 DESCRIPTION OF SYMBOLS 1 Floor 2 Seat cushion 3 Frame 4 Seat back 5 Arm 6 Rotating shaft 10 Spring (biasing means)
13 Electric lock means 16 Sector gear 17 Pinion gear 18 Motor (electric means)
19 Protrusion

Claims (2)

シートバックに固設されたアームを、フロア又はシートクッションに固設されたフレームに対して、シートバックの着座位置から前傾位置まで回動軸を中心に回動自在に支持してなり、
該アームには、該アームを前倒れ側へ付勢する付勢手段と、シートバックの前傾対応位置及び復帰対応位置の間で回動自在なセクタギアと、該アームの前傾位置でセクタギアの側端と当接すると共に復帰方向へ移動するセクタギアにより押されてアームを着座位置に復帰させる突起部とをそれぞれ備えてなり、
前記フレームには、前記アームを着座位置でロック自在な電動ロック手段と、前記セクタギアと噛合することで該セクタギアを前倒れ方向及び復帰方向へ回動させるピニオンギア及び前記セクタギアを復帰対応位置へ回動させた後にシートバックの前傾対応位置まで反転させるようにピニオンギアを回動させる電動手段とを設けてなることを特徴とする車両用シートのシートバック前倒し機構。 The arm fixed to the seat back is supported by a frame fixed to the floor or the seat cushion so as to be rotatable around a rotation axis from a seat back seating position to a forward tilt position.
The arm includes an urging means for urging the arm to the forward tilt side, a sector gear rotatable between a forward tilt corresponding position and a return corresponding position of the seat back, and a sector gear at the forward tilt position of the arm. Protruding portions that come into contact with the side ends and are pushed by a sector gear that moves in the return direction to return the arm to the seating position, respectively.
The frame includes an electric lock means that allows the arm to be locked at a seating position, and a pinion gear that rotates the sector gear in a forward-turning direction and a return direction by meshing with the sector gear, and the sector gear to a return corresponding position. A seat back forward tilting mechanism for a vehicle seat, comprising: an electric means for rotating a pinion gear so as to reverse the seat back to a position corresponding to the forward tilt of the seat back after being moved. 請求項１記載の車両用シートのシートバック前倒し機構であって、
付勢手段及び電動ロック手段と、セクタギア及びピニオンギアとを、それぞれアームの表裏別々に設けたことを特徴とする車両用シートのシートバック前倒し機構。 A vehicle seat back-forward mechanism according to claim 1,
A vehicle seat back-forward mechanism, characterized in that an urging means and an electric lock means, and a sector gear and a pinion gear are provided separately on the front and back sides of the arm, respectively.
JP2005212289A 2005-07-22 2005-07-22 Vehicle seat back-forward mechanism Expired - Fee Related JP4580835B2 (en)

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JP5171297B2 (en) * 2008-02-08 2013-03-27 株式会社今仙電機製作所 Sheet device
JP5278268B2 (en) * 2009-09-25 2013-09-04 株式会社今仙電機製作所 Sheet device
CN107139956B (en) * 2017-06-12 2024-03-29 青岛威奥轨道股份有限公司 Electric passenger seat for railway vehicle
CN107472089B (en) * 2017-08-11 2019-04-23 延锋安道拓座椅有限公司 A kind of unlock turnover mechanism of single motor driving and its application
JP7194649B2 (en) * 2019-06-21 2022-12-22 トヨタ紡織株式会社 Posture control system and vehicle seat
CN110406436B (en) * 2019-08-30 2024-04-30 湖北航嘉麦格纳座椅系统有限公司 Seat and turntable thereof

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JP2001287577A (en) * 2000-04-07 2001-10-16 Shiroki Corp Storage type seat for vehicle

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JPS5893251U (en) * 1981-12-21 1983-06-24 池田物産株式会社 seat reclining device
JPS63155455U (en) * 1987-03-31 1988-10-12

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JP2001287577A (en) * 2000-04-07 2001-10-16 Shiroki Corp Storage type seat for vehicle

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