JP5545647B2 - Vehicle seat slider structure - Google Patents

Description

  The present invention relates to a slider structure for a vehicle seat. Specifically, the lower rail fixed on the vehicle floor, the upper rail that is slidably assembled to the lower rail and integrally assembled to the vehicle seat, and the stopper that can regulate the sliding area of the upper rail with respect to the lower rail within a predetermined range And a slider structure for a vehicle seat having a mechanism.

  Conventionally, what was indicated by the following patent documents 1 as a slider structure of a vehicular seat is known. This slider structure is usually provided with a stopper mechanism that prevents the vehicle seat from being slid unless the vehicle seat is switched to a predetermined state, in addition to the slide lock mechanism that slide-locks the vehicle seat with respect to the floor. ing. Specifically, the stopper mechanism performs an operation of returning the seat back to the original posture after that by tilting the seat back forward and sliding the entire vehicle seat forward (walk-in state). Unless it performs, even if it performs release operation of a slide lock mechanism, it becomes the structure hold | maintained in the state which controlled the slide to the back side of the vehicle seat.

JP 2003-2092 A

  However, in the above prior art, the stopper mechanism is configured to be released when the posture of the vehicle seat is switched, so that the stopper function is not allowed to work only when the vehicle seat is mounted and fixed on the vehicle. The vehicle seat can be moved to a position where it does not interfere with the fixing work to the floor set in an enlarged area that is not normally used, and after fixing, the stopper function is always in a working state. This is unsuitable for use to restrict unnecessary movement to the enlarged region. The present invention was devised to solve the above problems, and the problem to be solved by the present invention is to expand an area that is not normally used before the vehicle seat is fixed to the floor. An object of the present invention is to provide a slider structure that can be slid to a position that does not interfere with the set operation for fixing to the floor, and that can be slid to an unnecessary enlarged area after fixing.

  The first invention restricts a lower rail fixed on a vehicle floor, an upper rail that is slidably assembled to the lower rail and integrally assembled to a vehicle seat, and a sliding area of the upper rail with respect to the lower rail within a predetermined range. A vehicle seat slider structure having a possible stopper mechanism. The stopper mechanism includes a locking piece provided on the lower rail and a locked piece provided on the upper rail. The locked piece is brought into a state in which the upper rail slide is restricted by coming into contact with the locking piece from one side by sliding of the upper rail, and the upper rail is allowed to slide when coming into contact with the locking piece from the other side. In the upper rail, one of the sliding areas from the position where the locked piece comes into contact with the locking piece from one side is set as a use area where the vehicle seat is normally used. The area on the other side is set as an enlarged area where the vehicle seat is not normally used. When the upper rail is in the sliding position of the use area, the lower rail is arranged with the vehicle seat overlying the fixed part fixed to the floor, and the space for fixing the fixed part is narrowed However, when the upper rail is at the slide position of the enlarged region, the vehicle seat is retracted from the upper side of the fixing portion, and the space for performing the fixing operation of the fixing portion is expanded. . Prior to fixing the fixing portion, the upper rail is disposed at the slide position of the enlarged region.

Here, “the region from the position where the locked piece abuts the locking piece from one side to the other side” means that the locked piece is positioned on the other side of the locking piece, or the locked piece is The state which is contacting the locking piece from the other side.
According to the first aspect of the invention, before the fixing portion of the lower rail is fixed, the upper rail is disposed at the slide position of the enlarged region, so that the vehicle seat is retracted from the upper side of the fixing portion, and The space for performing the fixing operation is expanded, and the fixing operation of the fixing portion is facilitated. The above-mentioned locked piece allows the upper rail to slide even if it comes into contact with the locking piece from the other side. Therefore, after the fixing portion is fixed, the upper rail is slid to move the locked piece to one side of the locking piece. It can be moved to the use area. As a result of this movement, the upper rail is brought into a state where the slide is restricted within the use area by bringing the locked piece into contact with the locking piece from one side by the slide. In this way, the vehicle seat can be slid to a position that does not interfere with the work for fixing to the floor before being fixed to the floor, and the slide to an unnecessary enlarged area can be regulated after fixing. .

  In a second aspect based on the first aspect described above, the lower rail has, in addition to the fixed portion, another fixed portion that is fixed to the floor before the fixed portion. The stopper mechanism slides the upper rail in the direction in which the locked piece comes into contact with the locking piece from the other side, and the locked piece comes in contact with the locking piece and slides in the same direction. It is configured to escape. When the locked piece comes into contact with the locking piece and rides up, the vehicle seat is retracted from the upper side of the other fixing portion, and the fixing operation of the other fixing portion is performed. The space for is expanded.

  According to the second aspect of the invention, the upper rail is slid to the position where the locked piece comes into contact with the locking piece from the other side and rides up, so that there is a space for fixing the other fixing portion of the lower rail. By adopting a configuration in which it is spread out, the position where the latched piece abuts the latching piece from one side and the upper rail slide is restricted, or the latched piece contacts the latching piece from the other side. Without changing the size of the area where the upper rail slide is allowed even if it comes into contact, the locking piece is lengthened in the sliding direction so that the locked piece slides from one side. The structural strength of the latching piece to be received can be increased.

  According to a third invention, in the first or second invention described above, the locking piece is constituted by a plate member provided so as to protrude integrally with the lower rail, and the locked piece is rotatable to the upper rail. It is comprised by the rotation member provided in. The locked piece is normally urged in one rotation direction by the urging force of the spring and is stopped at a position where it comes into contact with a stopper piece provided on the upper rail. When the locked piece comes into contact with the locking piece from one side, the locked piece is pressed by the locking piece in one rotation direction stopped by the stopper piece to restrict the sliding of the upper rail. When the locked piece comes into contact with the locking piece from the other side, the locked piece is pushed in the other rotation direction away from the contact with the stopper piece by the locking piece to release the slide of the upper rail. It has become.

  According to the third aspect of the present invention, the locked piece is constituted by the rotating member that is restricted in rotation in one rotation direction and is free to rotate in the other rotation direction. It is possible to easily realize a configuration that restricts the slide of the upper rail when abutting from the upper side and allows the slide of the upper rail to be released by rotation when abutting from the other side.

It is a side view of the slider structure of the vehicle seat of Example 1. It is a perspective view of a vehicle seat. It is a side view which shows the state which bolted the rear side leg part of the lower rail to the floor. It is a side view which shows the state which the rotation member contacted the plate member from the front side. It is a side view which shows the state which the rotation member moved to the back side of the plate member. It is a side view which shows the state which the rotation member contact | abutted from the back side to the plate member. It is the VII-VII sectional view taken on the line of FIG.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

  First, the slider structure of the vehicle seat according to the first embodiment will be described with reference to FIGS. As shown in FIG. 1, the slider structure of the vehicle seat according to the present embodiment includes a slider mechanism 10 that connects the vehicle seat 1 to a state in which the vehicle seat 1 can slide in the vehicle front-rear direction, and the slider mechanism 10. And a stopper mechanism 20 capable of restricting the slide area within a predetermined range (a use area described later).

  Here, the vehicle seat 1 includes a seat back 2 and a seat cushion 3. The slider mechanism 10 is provided between the seat cushion 3 and the floor F as a pair of left and right. The slider mechanism 10 can lock the lower rail 11 fixed integrally on the floor F of the vehicle, the upper rail 12 assembled so as to be slidable in the vehicle front-rear direction with respect to the lower rail 11, and the slide of the upper rail 12 with respect to the lower rail 11. A locking device (not shown).

  Specifically, each of the lower rails 11 is provided such that its front and rear end portions are integrally fixed on the floor F by a front leg portion 11A and a rear leg portion 11B, respectively. Here, the rear leg portion 11B corresponds to a fixing portion of the present invention, and the front leg portion 11A corresponds to another fixing portion of the present invention. Each of the front leg portion 11A and the rear leg portion 11B is integrally fixed to the bottom surface portion of the lower rail 11 by caulking with a caulking pin (not shown). Then, the front leg portion 11A and the rear leg portion 11B, which are integrally fixed to the lower rail 11, are fixed to the floor F by fastening with bolts Ba and bolts Bb, as will be described later.

  As shown in FIGS. 2 and 7, each of the lower rails 11 is formed by bending a single steel plate formed in a long shape in places in the short-side direction, and the surface is directed to the upper side of the seat. The bottom part, the left and right side parts rising from the left and right edge parts of the bottom part to the upper side of the seat, and the left and right folded parts bent back downward from the upper edge parts of the both side parts, respectively And is formed in a shape having.

  On the other hand, each of the upper rails 12 is formed by bending a long steel sheet in some directions in the lateral direction, and has an upper surface portion with the surface facing the upper side of the seat and both left and right sides of the upper surface portion. Left and right side portions that respectively hang down from the edges of the sheet, and left and right fin portions that are bent back so as to be flipped up in a direction away from each other from the respective lower edge portions of both side surfaces. Is formed. On the upper surface portion of the upper rail 12, a support frame 12A formed by bending two plate materials into a frame shape is provided in an integrally bonded state. A frame of the seat cushion 3 (not shown) is integrally bonded and fixed to the upper portion of the support frame 12A.

  The upper rails 12 are inserted in the longitudinal direction from the open ends of the lower rails 11 on either one of the front and rear sides so that the fins are accommodated in the folded space of the folded portions of the lower rails 11. As a result, the lower rail 11 can be slid in the longitudinal direction and assembled. As a result, each upper rail 12 is guided to slide in the longitudinal direction along the shape of each lower rail 11, and both fin portions are hooked on both folded portions of the lower rail 11, so that the upper rail 12 is separated from the lower rail 11. It is held in a state in which peeling is prevented so as not to come off upward.

  Each upper rail 12 is normally held in a state in which the slide with respect to each lower rail 11 is locked by a locking device (not shown). The slide lock state of both the lock devices is released by performing an operation of pulling up the operation lever 10 </ b> A that is connected to them and projects to the front side Fr of the seat cushion 3. With this release, each upper rail 12 can slide with respect to each lower rail 11. Then, after each upper rail 12 is slid to a desired slide position, the operation of lifting the operation lever 10A is stopped, so that each lock device (not shown) is locked again, and each upper rail 12 is slide-locked. Return to state.

  Here, the limit position at which the vehicle seat 1 can slide to the front side Fr from the slide position of the normal use region shown in FIG. 5 is a stopper mechanism which will be described later, as shown in FIG. The 20 rotation members 22 are in contact with and locked to the plate member 21 from the rear side Rr. Here, the plate member 21 corresponds to the locking piece of the present invention, and the rotating member 22 corresponds to the locked piece of the present invention. Further, the limit position at which the vehicle seat 1 can slide from the sliding position in the use area to the rear side Rr is not shown in the drawing, but is provided between the upper rail 12 and the lower rail 11. The stopper structure abuts and is locked (not shown). Here, the front side Fr corresponds to the other side of the present invention, and the rear side Rr corresponds to one side of the present invention.

  By the way, when the vehicle seat 1 is mounted on the floor F of the vehicle, the front leg that is transported into the vehicle with the slider mechanism 10 integrally assembled in advance and integrally provided on each lower rail 11 is provided. The part 11A and the rear leg part 11B are fixed to the floor F by fixing them with bolts Ba and bolts Bb, respectively (see FIGS. 1 and 3). Specifically, when the vehicle seat 1 is fixed on the floor F, the vehicle seat 1 that exceeds the use area restricted by the stopper mechanism 20 to the front side Fr is not normally used. A position that is in the slide position of the enlarged region (the state shown in FIG. 1 or FIG. 3) and that does not interfere with the work of fixing the front leg portion 11A and the rear leg portion 11B to the floor F using the tightening tool M. It can be evacuated by sliding it. Then, after the vehicle seat 1 is fixed to the floor F, as shown in FIG. 5, the rotating member 22 of the stopper mechanism 20 described later slides to a position where the plate member 21 exceeds the rear side Rr. As a result, the vehicle seat 1 enters a state where it is normally used, and the sliding toward the front side Fr is restricted by the stopper mechanism 20 (the sliding to the unnecessary enlarged area is restricted). State).

  Hereinafter, the configuration of the stopper mechanism 20 will be described. As shown in FIGS. 6 and 7, the stopper mechanism 20 includes a plate member 21 provided integrally with the side surface portion of the lower rail 11 and a rotating member 22 provided to be rotatable with respect to the upper rail 12. And having. The plate member 21 is formed in an elongated L-shaped plate shape along the longitudinal direction of the lower rail 11, and the bent side portion is applied to the side surface portion of the lower rail 11 and is integrally fixed. Yes. The rotation member 22 is formed of an L-shaped link member, and is connected to a support frame 12A fixed to the upper portion of the upper rail 12 by an axis pin 22A so as to be rotatable. Specifically, the shaft pin 22A is integrally fixed to the support frame 12A, and is configured to support the rotating member 22 so that the shaft can rotate. A spring 22B is hooked between the rotating member 22 and the shaft pin 22A, and is always in a state of being urged to rotate counterclockwise as shown in FIG. 6 by the urging force of the spring 22B.

  The urging rotation of the rotating member 22 in the counterclockwise direction shown in the figure is restricted at a position where the rotating member 22 comes into contact with a stopper piece 22 </ b> C provided protruding from the side surface of the lower rail 11. As a result, the rotating member 22 is normally in a state in which the rotation in the counterclockwise direction in contact with the stopper piece 22C is restricted and can rotate in the clockwise direction in the drawing. Yes. As shown in FIG. 3, the rotating member 22 is in a state where the upper rail 12 is in the sliding position of the enlarged region, that is, when the rotating member 22 is positioned on the front side Fr of the plate member 21, the upper rail 12 is moved from this state. By being slid to the rear side Rr and pressed against the plate member 21 from the front side Fr, as shown in FIG. The upper surface of the member 21 is slid. As a result, sliding to the rear side Rr that allows the upper rail 12 to move from the enlarged region (region of FIGS. 1 and 3) to the use region (region of FIG. 5) is allowed.

  On the other hand, as shown in FIG. 5, the rotating member 22 is in a state where the upper rail 12 is in the sliding position of the use region, that is, when the rotating member 22 is positioned on the rear side Rr of the plate member 21. Is slid to the front side Fr and pressed against the plate member 21 from the rear side Rr, so that it is pressed against the plate member 21 in the counterclockwise direction shown in FIG. To be locked. Thereby, the slide to the front side Fr which moves the said upper rail 12 from a use area | region to an expansion area | region is accept | permitted.

  Next, a procedure for conveying the vehicle seat 1 described above into the vehicle and fixing the front leg portion 11A and the rear leg portion 11B of the lower rail 11 to the floor F using the tightening tool M will be described. When performing the fixing operation, as shown in FIG. 3, the vehicle seat 1 is in a state in which the rotating member 22 is positioned on the front side Fr with respect to the plate member 21, that is, in a state in which the upper rail 12 is in the sliding position of the enlarged region. It is said that. In this state, the vehicle seat 1 is disposed so as to overlap above the portion of the front leg portion 11A where the bolt Ba is tightened, and a tightening tool M (see FIG. 1) is used for the front leg portion 11A. It is in a state where it is difficult to perform the tightening operation of the bolt Ba (a state where a space for performing the tightening operation is narrowed).

  Then, next, the upper rail 12 (vehicle seat 1) is slid to the rear side Rr, and as shown in FIG. 1, the rotating member 22 comes into contact with the plate member 21 from the front side Fr and rides up. Like that. Thus, the vehicle seat 1 is retracted from the upper side of the portion where the bolt Ba of the front leg portion 11A is tightened to the rear side Rr, and the bolt Ba is tightened using the tightening tool M on the front leg portion 11A. Therefore, the front leg 11A is fixed to the floor F with the bolt Ba using the tightening tool M in this state. In addition, the vehicle seat 1 may be disposed at a position where the rotating member 22 rides on the upper portion of the plate member 21 from the beginning when being conveyed into the vehicle.

  Next, in order to increase the space for fixing the rear leg portion 11B to the floor F using the tightening tool M, the upper rail 12 (vehicle seat 1) is moved to a position where the rotating member 22 gets over the plate member 21 to the front side Fr. ) To the front side Fr. Thereby, as shown in FIG. 3, the vehicle seat 1 is retracted from the upper side of the portion where the bolt Bb of the rear leg portion 11B is tightened to the front side Fr, and the tightening tool M is used for the rear leg portion 11B. Thus, the bolt Bb can be tightened (the space for tightening is widened). In this state, the rear leg 11B is tightened to the floor F by the bolt Bb using the tightening tool M. Secure to. As a result, the lower rail 11 (vehicle seat 1) is fixed to the floor F.

  Therefore, next, the upper rail 12 (vehicle seat 1) is slid to the rear side Rr to a position where the rotating member 22 gets over the plate member 21 to the rear side Rr. As a result, as shown in FIG. 5, the upper rail 12 enters the use area slide position, and the stopper mechanism 20 restricts the slide to the front side Fr beyond the use area of the upper rail 12 (vehicle seat 1). (See FIG. 6). In the state where the rotating member 22 is located on the rear side Rr from the plate member 21, that is, the state where the upper rail 12 is in the sliding position of the use region, the vehicle is disposed above the portion where the bolt Bb of the rear leg portion 11B is tightened. Since the seat 1 is placed in an overlapping state, it is difficult to tighten the bolt Bb using the tightening tool M (see FIG. 3) on the rear leg portion 11B (space for performing the tightening operation). Is a narrowed state). Therefore, as described above, when the rear leg portion 11B is fixed, the vehicle seat 1 is in a state where the rotating member 22 is positioned on the front side Fr of the plate member 21, that is, the upper rail 12 is slid in the enlarged region. By maintaining the position, the fixing operation of the rear leg portion 11B can be easily performed in addition to the fixing operation of the front leg portion 11A described above.

  Thus, according to the slider structure of the vehicle seat of the present embodiment, the upper rail 12 is disposed at the slide position in the enlarged region before the rear leg portion 11B of the lower rail 11 is fixed, thereby the vehicle seat. 1 is retracted from the upper side of the rear leg portion 11B, and a space for fixing the rear leg portion 11B is widened, and the fixing operation of the rear leg portion 11B is facilitated. The rotating member 22 of the stopper mechanism 20 allows the upper rail 12 to slide even if it contacts the plate member 21 from the front side Fr. Therefore, after the rear leg 11B is fixed, the upper rail 12 is slid to rotate the rotating member 22. Can be moved to the rear side Rr of the plate member 21 and moved to the use area. As a result of this movement, the upper rail 12 is brought into a state where the slide is restricted within the use region by bringing the rotary member 22 into contact with the plate member 21 from the rear side Rr by the slide. In this way, the vehicle seat 1 can be slid to a position that does not interfere with the fixing work to the floor F before being fixed to the floor F, and after the fixing, the sliding to an unnecessary enlarged region can be regulated. be able to.

  In addition, by sliding the upper rail 12 to a position where the rotating member 22 contacts the plate member 21 from the front side Fr and rides up, a space for fixing the front leg portion 11A of the lower rail 11 is expanded. With this configuration, the position where the rotation member 22 comes into contact with the plate member 21 from the rear side Rr and the sliding of the upper rail 12 is restricted, or even if the rotation member 22 comes into contact with the plate member 21 from the front side Fr. The movement in which the rotating member 22 is slid from the rear side Rr with the plate member 21 lengthened in the sliding direction without changing the size of the area (enlarged area) where the 12 slides are allowed to be allowed. The structural strength of the plate member 21 that catches it can be increased.

  As mentioned above, although the embodiment of the present invention has been described using one example, the present invention can be implemented in various forms in addition to the above example. For example, in the above-described embodiment, the slide region of the upper rail 12 has a configuration in which the enlargement region is set in the region beyond the normal use region to the front side Fr. However, the enlargement region is set to the rear side. A stopper mechanism may be provided so as to set the region beyond the limit. Moreover, in the said Example, as the stopper mechanism of this invention, what comprised the to-be-latched piece provided in the upper rail 12 with the rotating member 22, and comprised the latching piece provided in the lower rail 11 with the board member 21 was illustrated. However, the to-be-latched piece may be constituted by a plate member, and the engaging piece may be constituted by a rotating member. Moreover, in the said Example, the to-be-latched piece of this invention contact | abuts on a latching piece, and it rides, and it rotates by abutting a to-be-latched piece to a latching piece, and it rotates on a latching piece. Although what was comprised by the member 22 was illustrated, it slides to an up-down direction by contacting a latching piece (or latching piece) to a latching piece (latched piece), and a latching piece (latched piece) ) May be configured to ride on. In the above embodiment, the front leg 11A (corresponding to another fixing part of the present invention) is fixed before the rear leg 11B (corresponding to the fixing part of the present invention). However, the rear leg 11B may be fixed first.

DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Seat back 3 Seat cushion 10 Slider mechanism 10A Operation lever 11 Lower rail 11A Front leg part (other fixing parts)
11B Rear leg (fixed part)
12 Upper rail 12A Support frame 20 Stopper mechanism 21 Plate member (locking piece)
22 Rotating member (locked piece)
22A Shaft pin 22B Spring 22C Stopper piece F Floor Fr Front side (the other side)
Rr rear side (one side)
Ba bolt Bb bolt M Tightening tool

Claims (2)

A lower rail fixed on a vehicle floor, an upper rail that is slidably assembled to the lower rail and integrally assembled to a vehicle seat, and a stopper that can regulate a sliding area of the upper rail with respect to the lower rail within a predetermined range A vehicle seat slider structure having a mechanism,
The stopper mechanism is
A locking piece provided on the lower rail;
Provided in the upper rail, the sliding of the upper rail to restrict the sliding of times the upper rail contact from one side to the locking piece, and rides on the locking piece when the contact from the other side to the locking piece the A locked piece that allows the upper rail to slide,
The upper rail is configured such that, in the sliding area, a region on one side from a position where the locked piece comes into contact with the locking piece from one side is set as a use region in which the vehicle seat is normally used. The area on the other side from the contact position is set as an enlarged area where the vehicle seat is not normally used,
The lower rail is configured to be fixed to the floor at a fixing portion and another fixing portion, and when the upper rail is in a slide position of the use area, the fixing portion is disposed above the vehicle. The seat overlaps and the space for performing the fixing operation is narrowed, but when the upper rail is in the slide position of the enlarged region, the vehicle seat is retracted from the upper side to expand the fixing operation space. The other fixing portion moves the upper rail closer to the use area in the enlarged area and causes the locked piece to come into contact with the locking piece from the other side to ride on the vehicle seat. Is configured to widen the space for retracting from the upper side and performing the fixing work,
Before the fixing portion and the other fixing portion are fixed, the upper rail is arranged at the slide position of the enlarged region, and the fixing portion and the other fixing portion can be fixed without sliding the upper rail to the use region. A slider structure for a vehicle seat, characterized in that the work can be completed . The vehicle seat slider structure according to claim 1,
The locking piece is constituted by a plate member provided so as to protrude integrally with the lower rail, and the locked piece is constituted by a rotating member provided rotatably on the upper rail, the locked piece Is normally urged in the direction of rotation by the urging force of a spring and stopped at a position where it comes into contact with a stopper piece provided on the upper rail, and the locked piece is engaged with the locking piece from one side. At the time of contact, the locked piece is pressed by the locking piece in the one rotation direction stopped by the stopper piece to restrict the sliding of the upper rail, but the locked piece becomes the locking piece. the device under locking piece when the contact from the other side Turkey has composition which is pushed around the other rotation direction away from the contact with the stopper piece by the locking piece escape slide of the upper rail The slider structure of a vehicle seat according to claim.

Images