JP6561552B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat, and in particular, a movable rail that slides on a fixed rail together with a seat body, a vibration suppression body that is interposed between the movable rail and the seat body, a cover member that covers the movable rail, It is related with the vehicle seat provided with.

  Vehicle seats equipped with a slide rail mechanism are already well known. A general slide rail mechanism includes a fixed rail fixed to a vehicle body floor and a movable rail that slides on the fixed rail. In addition, as a configuration of the vehicle seat provided with the slide rail mechanism, a vibration suppressing body is provided at a lower portion of the seat body, that is, an upper position of the movable rail for the purpose of suppressing the vibration on the vehicle body floor from being transmitted to the seat body. The configuration is also known. For example, Patent Document 1 describes a vehicle seat in which an elastic spring body as a vibration isolator is provided between a seat cushion frame and a movable rail (upper rail).

JP 2012-162183 A

  On the other hand, the movable rail may be covered with a cover member in order to suppress adhesion of foreign matter on the movable rail. In this case, in order to prevent foreign matter from entering the space around the position where the vibration suppressing body is disposed and finally adhering to the movable rail, the cover member is disposed so as to straddle the position where the vibration suppressing body is disposed in the vertical direction. It is desirable to arrange. Further, in order to effectively suppress the entry of foreign matter, it is preferable that the cover member extends downward as much as possible. However, if the cover member extends downward, the lower end of the cover member may be unintentionally displaced (fluttered).

  Then, this invention is made | formed in view of said problem, The objective is suppressing that the lower end part of the said cover member displaces when the cover member which covers a movable rail is extended below. The object is to provide a possible vehicle seat.

According to the vehicle seat of the present invention, the subject is a fixed rail fixed to the vehicle body floor, a movable rail that slides along the fixed rail, and disposed above the movable rail, together with the movable rail. A seat body that slides, a vibration suppression body that is provided at a lower portion of the seat body and suppresses vibration on the vehicle body floor from being transmitted to the seat body, and a cover member that covers a side surface of the movable rail. The cover member is arranged so as to straddle the arrangement position of the vibration suppressing body in the vertical direction, and a portion of the cover member that is located above the arrangement position of the vibration suppressing body is located on the seat body. is fixed, it is positioned in the width direction of the seat body by a member positioned below the position of the lower end the vibration suppression of the cover member The lower portion of the seat body includes a bracket for attaching the movable rail, and a fixing portion disposed at an upper position of the bracket for fixing the bracket, and the vibration suppressing body is arranged in the vertical direction. The cover is interposed between the bracket and the fixed portion, the cover member covers the bracket to which the movable rail is attached, and the member positioned below the position where the vibration suppressing body is disposed is the bracket. the lower end of the cover member is solved by Rukoto are positioned in the width direction by the bracket.
Further, the problem is that a fixed rail fixed to the vehicle body floor, a movable rail that slides along the fixed rail, a seat body that is disposed above the movable rail and slides together with the movable rail, A vibration suppression body that is provided at a lower portion of the seat body and suppresses vibrations on the vehicle body floor from being transmitted to the seat body; and a cover member that covers a side surface of the movable rail. The portion of the cover member that is located above the position of the vibration suppressing body is fixed to the seat body, and the lower end of the cover member. The portion is positioned in the width direction of the seat body by a member positioned below the arrangement position of the vibration suppressing body, and the lower portion of the seat body An extending member extending downward, wherein the extending member is spaced outward in the width direction from the vibration suppressing body, and an upper end portion of the extending member is at the same position in the vertical direction as the vibration suppressing body And at least a part of the extending member is positioned below a position where the vibration suppressing body is disposed, and a lower end portion of the cover member is formed in the width direction by the at least a part of the extending member. It is solved by being positioned in.

  As described above, in the vehicle seat of the present invention, the cover member that covers the movable rail is disposed so as to straddle the position where the vibration suppressing body is disposed in the vertical direction. The portion of the cover member that is located above the position where the vibration suppressing body is disposed is fixed to the seat body, and the lower end of the cover member is positioned by the member located below the position where the vibration suppressing body is disposed. Has been. Thereby, even if the cover member is extended downward, the displacement of the lower end portion of the cover member can be suppressed with a simple configuration.

Further, in the above vehicle seat, the lower portion of the seat body includes a bracket for attaching the movable rail, and a fixing portion disposed at an upper position of the bracket for fixing the bracket, The vibration suppressing body is interposed between the bracket and the fixed portion in the vertical direction, and the cover member covers the bracket to which the movable rail is attached and is positioned below the position where the vibration suppressing body is disposed. The said member is the said bracket, and the lower end part of the said cover member is good to be positioned in the said width direction by the said bracket.
In the above configuration, the lower end portion of the cover member is positioned by the bracket to which the movable rail is attached. That is, the bracket for attaching the movable rail is used for positioning the lower end portion of the cover member. Thereby, compared with the case where another member is provided for positioning of the lower end part of a cover member, it becomes possible to reduce the number of parts.

Further, in the above vehicle seat, a side wall of the cover member that is located outside in the width direction is in contact with an outer end portion of the bracket that is located outside in the width direction. The lower end portion of the member may be positioned in the width direction.
According to said structure, the lower end part of a cover member is simplified structure by making the side wall located in the width direction outer side contact | abut with the outer side edge part located in the width direction outer side among brackets. It becomes possible to position with.

In the above vehicle seat, a bent portion that is bent toward the inner side in the width direction is formed at a lower end portion of the side wall, and the outer end portion of the bracket is bent in the vertical direction. The lower end portion of the cover member extends downward to the position where the portion is formed, and the portion located on the innermost side in the width direction of the bent portion contacts the outer end portion of the bracket. Is preferably positioned in the width direction.
In the above configuration, when positioning the lower end portion of the cover member, a bent portion is provided at the lower end portion of the side wall of the cover member, and among the bent portions, the innermost portion in the width direction is used as the outer end portion of the bracket. It is supposed to abut. Accordingly, the lower end portion of the side wall of the cover member can be easily brought into contact with the outer end portion of the bracket, and as a result, the lower end portion of the cover member can be positioned more easily.

In the above vehicle seat, a lower portion of the seat body includes an extending member extending downward, and the extending member is spaced apart from the vibration suppressing body in the width direction , and the extending member The upper end portion of the member is at the same position in the vertical direction as the vibration suppressing body, at least a part of the extending member is positioned below the arrangement position of the vibration suppressing body, and the lower end portion of the cover member is The at least one part of the extending member may be positioned in the width direction.
In the above configuration, the lower end portion of the cover member is positioned by the extending member that extends downward from the lower portion of the seat body. Thereby, positioning of the lower end part of a cover member can be performed more efficiently.

Further, in the above vehicle seat, the extending member is a linear member having a curved outer peripheral surface, and the side wall located on the outer side in the width direction of the cover member is the linear member. The lower end part of the cover member may be positioned in the width direction by contacting the outer peripheral surface.
In said structure, the lower end part of a cover member is positioned when the side wall located in the width direction outer side contact | abuts with the outer peripheral surface of a linear member. In addition, since the outer peripheral surface of the linear member is curved, the contact area between the cover member and the outer peripheral surface of the linear member becomes smaller, and abnormal noise generated when the cover member slides on the linear member is reduced. It becomes possible to reduce.

In the above vehicle seat, the cover member may be made of a resin material.
With the above configuration, the effect of the present invention is more effectively exhibited. More specifically, the cover member made of a resin material is easily deformed in the same direction when a load is applied in the width direction of the sheet body. In other words, the lower end portion of the cover member is easily displaced in the width direction of the sheet main body. In such a situation, the effect of the present invention that suppresses displacement of the lower end portion of the cover member is more effectively exhibited.

According to the vehicle seat of the present invention, even if the cover member is extended downward, the displacement of the lower end portion of the cover member can be suppressed with a simple configuration.
In addition, according to the vehicle seat of the present invention, the number of parts can be reduced as compared with the case where another member is provided to position the lower end portion of the cover member.
Further, according to the vehicle seat of the present invention, the lower end portion of the cover member is brought into contact with the outer end portion located on the outer side in the width direction of the bracket, with the side wall located on the outer side in the width direction of the cover member. Can be positioned with a simpler configuration.
Further, according to the vehicle seat of the present invention, the lower end portion of the side wall of the cover member can be easily brought into contact with the outer end portion of the bracket, so that the lower end portion of the cover member can be positioned more easily. .
According to the vehicle seat of the present invention, the lower end portion of the cover member is positioned more efficiently by positioning the lower end portion of the cover member by the extending member extending downward from the lower portion of the seat body. Is possible.
Further, according to the vehicle seat of the present invention, the lower end portion of the cover member is positioned by the side wall of the cover member located on the outer side in the width direction coming into contact with the outer peripheral surface of the linear member. Moreover, since the outer peripheral surface of the linear member is a curved surface, it is possible to reduce noise generated when the cover member is in sliding contact with the linear member.
Moreover, according to the vehicle seat of the present invention, the effect of the present invention of suppressing the displacement of the lower end portion of the cover member is more meaningfully exhibited because the cover member is made of a resin material.

It is a figure which shows the whole image of the vehicle seat which concerns on one Embodiment of this invention. It is a component diagram of a slide rail mechanism. It is a figure when the seat cushion frame in the state where the cover member was attached was seen from the side. It is a figure when the seat cushion frame of the state where the cover member was removed was seen from the side. It is a figure when the side edge part of a seat cushion frame is seen from diagonally downward. It is AA sectional drawing in FIG.

<< Regarding Configuration of Vehicle Seat According to One Embodiment of the Present Invention >>
Hereinafter, an example of the vehicle seat of the present invention will be described. The embodiment of the vehicle seat described below (hereinafter, this embodiment) is merely an example for facilitating understanding of the present invention, and does not limit the present invention. That is, the present invention can be changed and improved without departing from the gist thereof, and the present invention includes its equivalents.

  In the following description, the “front-rear direction” refers to the front-rear direction of the vehicle seat and is the direction that coincides with the traveling direction of the vehicle. The “width direction” is the width direction of the vehicle seat, strictly speaking, the width direction (left-right direction), and corresponds to the width direction of the seat body. Further, the positions and the like of the respective parts of the seat described below are the contents when the vehicle seat is in a seatable state (that is, during normal times) unless otherwise specified.

  First, an overall configuration of a vehicle seat (hereinafter, this seat S) according to the present embodiment will be outlined. This seat S is a seat used in the vehicle interior as a rear seat (strictly speaking, seats in the second and subsequent rows). However, the vehicle seat of the present invention can also be used as a driver seat or a passenger seat. Incidentally, this sheet S employs a vibration suppression structure (the vibration suppression structure will be described later). Therefore, the seat S is particularly effective when used as a seat disposed at a position where vibration is more likely to occur, for example, a position directly above the tire.

  As shown in FIG. 1, the seat S includes a seat body Sh and a slide rail mechanism R as main components. The seat body Sh includes a seat cushion S1 on which an occupant sits, a seat back S2 on which the occupant leans, and a headrest S3 that supports the occupant's head. The seat cushion S1 and the seat back S2 are configured by placing a pad material such as urethane on a frame forming a skeleton and further covering the pad member with a skin material. The basic configurations of the seat cushion S1 and the seat back S2 are generally the same as known configurations.

  The slide rail mechanism R slides the seat body Sh along the front-rear direction, and a pair of slide rail mechanisms R are arranged at positions immediately below the seat body Sh. Each slide rail mechanism R has a lower rail R1 as a fixed rail and an upper rail R2 as a movable rail. The lower rail R1 is fixed to the vehicle body floor and extends along the front-rear direction.

  The upper rail R2 is assembled to the lower rail R1 so as to be slidable along the lower rail R1. Since the structure for assembling the upper rail R2 to the lower rail R1 in a state in which it can slide along the lower rail R1 is known, the description thereof will be omitted.

  Further, the upper rail R2 is fixed to the lower portion of the seat body Sh. That is, the seat body Sh is disposed above the upper rail R2, and slides in the front-rear direction together with the upper rail R2. More specifically, in a normal state, the state of the upper rail R2 is a state in which the slide movement is restricted by the slide lock mechanism 30, that is, a slide lock state. On the other hand, when the slide lock release lever Ls provided on the side of the seat body Sh (more strictly speaking, the seat cushion S1) is operated by an occupant, the components of the slide lock mechanism 30 are moved in accordance with the lever operation. become. As a result, the upper rail R2 that has been in the slide lock state until then is allowed to slide. When the upper rail R2 in such a state is moved back and forth along the lower rail R1, the upper rail R2 and the seat body Sh slide together.

  Further, the seat S employs a structure for suppressing vibration generated on the vehicle body floor from being transmitted to the seat body Sh via the slide rail mechanism R. In describing the vibration suppressing structure, the structure of the upper rail R2 according to the present embodiment, the configuration for fixing the upper rail R2 to the seat body Sh, and the like will be described.

  The upper rail R2 according to the present embodiment is fixed to the lower portion of the seat body Sh via the rail bracket 20 illustrated in FIG. More specifically, as shown in FIG. 5 and FIG. 6, the side frame f1 provided as the side portion of the seat cushion frame CF includes a side wall f11 disposed at the outer end in the width direction and a lower end of the side wall f11. A bottom wall f12 that is fixed and extends inward in the width direction. In the present embodiment, the side wall f11 and the bottom wall f12 are separate from each other and are joined by welding or the like. However, the present invention is not limited to this, and the side wall f11 and the bottom wall f12 of the side frame f1 may be integrally formed by processing a single metal plate or the like.

  A rail bracket 20 is fixed at a position below the bottom wall f12. The rail bracket 20 is a metal bracket for attaching the upper rail R2. And the rail bracket 20 is being fixed to the lower part of the sheet | seat main body Sh by fastening the upper end part to the bottom wall f12 of the side frame f1 with fastening members, such as a volt | bolt. That is, the bottom wall f12 functions as a fixing portion for fixing the rail bracket 20 at the lower portion of the seat main body Sh by being disposed above the rail bracket 20.

  Hereinafter, each structure of upper rail R2 and rail bracket 20 concerning this embodiment is explained in detail.

  As shown in FIG. 2, the upper rail R <b> 2 has a standing wall portion r <b> 21 made of two metal plates that rise upward. Each of the two metal plates constituting the standing wall portion r21 has an upper end portion bent in a lateral U shape. Further, the two metal plates are joined in a state where the bent upper ends are combined. Thereby, the rectangular tube-shaped part r23 is formed in the upper end part of upper rail R2.

  Furthermore, as shown in FIG. 2, a pipe-shaped hollow body r22 is accommodated in the inner space of the rectangular tube-shaped portion r23. A through-hole is formed in the hollow body r22 along the front-rear direction. Further, both end openings of the through hole are substantially at the same position as both end positions of the rectangular tube-shaped portion r23 in the front-rear direction. And the fastening bolt B mentioned later will be screwed in into the both ends of a through-hole.

  As shown in FIG. 2, the rail bracket 20 has an upper wall 21 extending along the front-rear direction and a falling wall extending downward from the outer edge of the upper wall 21. Moreover, the bolt hole 24 is formed in the front wall 22 located in the front-end part of the rail bracket 20 and the rear wall 23 located in a rear-end part among falling walls, respectively. Further, in the front-rear direction, the distance between the front wall 22 and the rear wall 23 is slightly longer than the length in the front-rear direction of the rectangular tubular portion r23 formed at the upper end of the upper rail R2.

  Then, the upper rail R2 is attached to the rail bracket 20 in a state where the rail bracket 20 covers the square cylindrical portion r23. Specifically, when the upper rail R2 is attached to the rail bracket 20, the upper rail R2 is set so that the rectangular tubular portion r23 is sandwiched between the front wall 22 and the rear wall 23 of the rail bracket 20 in the front-rear direction. At this time, the upper rail R2 is set so that the bolt holes 24 formed in each of the front wall 22 and the rear wall 23 overlap with both end openings of the hollow body r22 accommodated in the rectangular tubular portion r23. Then, the fastening bolt B is inserted into the bolt hole 24, and the bolt tip is screwed into the through hole of the hollow body r22. As a result, the upper rail R2 is attached to the rail bracket 20, and as a result, is fixed to the side frame f1 of the seat cushion frame CF.

  As described above, in the seat S, the upper rail R2 is fixed to the lower portion of the seat body Sh via the rail bracket 20. Further, as described above, the seat S employs a configuration for suppressing the vibration on the vehicle body floor from being transmitted to the seat body Sh. More specifically, as shown in FIG. 3, a vibration isolator 40 is provided at the lower portion of the sheet main body Sh. The vibration isolator 40 corresponds to a vibration suppressing body that suppresses vibration on the vehicle body floor from being transmitted to the seat body Sh. Further, the vibration isolator 40 is interposed between the bottom wall f12 of the side frame f1 of the seat cushion frame CF and the upper wall 21 of the rail bracket 20 in the vertical direction.

  When vibration on the vehicle body floor is transmitted to the vibration isolator 40 via the lower rail R1, the upper rail R2, and the rail bracket 20, the vibration isolator 40 is deformed by being distorted in the front-rear direction. The vibration energy is absorbed by the deformation of the vibration isolator 40 in this way. In other words, vibration on the vehicle body floor is attenuated by the vibration isolator 40. In addition, about the member which comprises the vibration isolator 40, if it exhibits a vibration proof effect by deform | transforming, it can be utilized without a restriction | limiting especially, For example, a vibration proof rubber and a vibration proof spring can be used. is there.

  By the way, this sheet | seat S has the cover member (henceforth, rail cover 10) which covers upper rail R2 from the objective of preventing the foreign material adhesion etc. to upper rail R2. The rail cover 10 is made of a resin material. Moreover, in this sheet | seat S, the rail cover 10 becomes a structure which covers the rail bracket 20, as FIG. 3 and 4 shows. That is, the rail cover 10 included in the seat S is configured to cover the upper rail R2 by covering the rail bracket 20 to which the upper rail R2 is attached.

  As shown in FIG. 3, the seat S is provided with a side frame cover 50 that covers the side frame f <b> 1 of the seat cushion frame CF from the side separately from the rail cover 10. The side frame cover 50 is assembled to the rail cover 10 in a state of being located on the outer side in the width direction than the rail cover 10.

  The rail cover 10 will be described in more detail. The rail cover 10 provided in the seat S has side walls located at the front, rear, and side of the rail bracket 20 and is configured to surround the rail bracket 20. Moreover, the rail cover 10 is arrange | positioned so that the arrangement position of the vibration isolator 40 may be straddled in an up-down direction, as shown in FIG. That is, the upper end of the rail cover 10 is located above the position where the vibration isolator 40 is disposed, and the lower end of the rail cover 10 is located below the position where the vibration isolator 40 is disposed. Since the rail cover 10 is disposed so as to straddle the position where the vibration isolator 40 is disposed in this way, foreign matter enters the space around the position where the vibration isolator 40 is disposed and finally adheres to the upper rail R2. It can be effectively suppressed.

  Further, in the present embodiment, the rail cover 10 is continuous as one component without being divided vertically in the vicinity of the position where the vibration isolator 40 is disposed. Thereby, it becomes possible to suppress the abnormal noise generated when the rail cover 10 is divided into upper and lower parts. In order to explain the effect in an easy-to-understand manner, it is assumed that the rail cover is divided into an upper part (hereinafter, upper cover) and a lower part (hereinafter, lower cover).

  When the rail cover is divided into an upper cover and a lower cover, the upper cover is fixed to a member positioned above the position where the vibration isolator 40 is disposed, and the lower cover is disposed on the vibration isolator 40. It will be fixed to the member located below the position. In addition, for the purpose of suppressing the entry of foreign matter into the space around the position where the vibration isolator 40 is disposed, each cover corresponds so that the lower end of the upper cover and the upper end of the lower cover overlap in the front-rear direction and the left-right direction. It is fixed to the member to do. In such a configuration, when the vibration isolator 40 is deformed to absorb vibration energy, when the member with the lower cover is brought close to the member with the upper cover, the covers collide with each other, causing abnormal noise. Will occur.

  On the other hand, the rail cover 10 provided in the seat S has a continuous configuration as one component as described above. For this reason, in this sheet S, unlike the case where the rail cover is divided into the upper cover and the lower cover, the covers do not collide with each other and no abnormal noise is generated.

  The rail cover 10 provided in the seat S will be described in more detail. A portion of the rail cover 10 that is located above the position where the vibration isolator 40 is disposed is fixed to the seat body Sh. Strictly, as shown in FIG. 6, it is fixed to the side wall f11 of the side frame f1 of the seat cushion frame CF by bolts or the like.

  On the other hand, for the purpose of effectively suppressing foreign matter adhesion to the upper rail R2, the rail cover 10 extends relatively long downward. However, in the configuration in which the rail cover 10 extends downward, the lower end portion of the rail cover 10 may be unintentionally displaced (fluttered). Therefore, the present seat S employs a configuration that effectively suppresses fluttering at the lower end of the rail cover 10. Such a configuration is a feature of the sheet S, and the characteristic configuration will be described below with reference to FIGS.

  The structure of the rail cover 10 will be described again. The rail cover 10 has side walls located on the front, rear and side of the rail bracket 20. Among these, the side wall adjacent to the rail bracket 20 on the outer side in the width direction corresponds to the side wall located on the outer side in the width direction, and is hereinafter referred to as the outer wall 11. Further, the side wall adjacent to the rail bracket 20 on the inner side in the width direction corresponds to the side wall located on the inner side in the width direction, and is hereinafter referred to as an inner side wall 12. Both the outer side wall 11 and the inner side wall 12 extend downward. As shown in FIG. 6, the extension amount of the outer wall 11 is somewhat longer than the extension amount of the inner wall 12 (in other words, the lower end of the outer wall 11 is lower than the lower end of the inner wall 12. Is also located below).

  The outer wall 11 bends inward in the width direction at an intermediate position in the extending direction, extends somewhat inward in the width direction, and then extends downward again. Furthermore, the lower end portion of the outer wall 11 is bent again toward the inner side in the width direction as shown in FIG. 6 to form a substantially L-shaped bent portion 13. Similarly, the lower end portion of the inner wall 12 is bent toward the outer side in the width direction as shown in FIG. 6 to form a substantially inverted L-shaped bent portion 14.

  Next, the configuration around the rail cover 10 will be described. As shown in FIG. 6, in addition to the rail bracket 20 described above, a deformation restriction wire 60 and a harness restriction wire 65 are provided around the rail cover 10, particularly around the outer wall 11 and the inner wall 12.

  The deformation restriction wire 60 corresponds to an extending member, and is provided in the lower portion of the sheet main body Sh. More specifically, the deformation regulating wire 60 is configured by bending a metal linear member. In the present embodiment, as shown in FIG. 4, the shape of the deformation regulating wire 60 is substantially U-shaped when viewed from the side. Moreover, the linear member which comprises the deformation | transformation control wire 60 is a round bar-shaped member. That is, the deformation regulating wire 60 is configured by a linear member having a curved outer peripheral surface.

  Further, as shown in FIGS. 4 and 5, the deformation regulating wire 60 is fixed to the side frame f1 of the seat cushion frame CF via an attachment wire 61, and extends downward. Furthermore, as shown in FIG. 6, most of the deformation regulating wire 60 excluding the upper end fixed to the attachment wire 61 is positioned below the position where the vibration isolator 40 is disposed. Furthermore, the lower end portion of the deformation regulating wire 60 is adjacent to the rail bracket 20 on the outer side in the width direction as shown in FIG. 6, strictly speaking, the side wall 25 located at the outer end portion in the width direction of the rail bracket 20. Located right beside.

  The harness regulation wire 65 is provided to regulate the path of a harness (not shown) routed in the seat cushion S1, and is configured by bending a metal linear member. . Further, the harness regulating wire 65 is fixed to the lower end portion of the seat cushion frame CF and extends downward. Furthermore, the lower end part of the harness control wire 65 is located below the position where the vibration isolator 40 is disposed as shown in FIG. Furthermore, the lower end portion of the harness regulating wire 65 is disposed at a position adjacent to the rail bracket 20 on the inner side in the width direction as shown in FIG.

  The structure of the rail bracket 20 will be described again. At both ends in the width direction of the rail bracket 20, a falling wall that extends downward from the upper wall 21, that is, a side wall 25 is provided. Further, a part of the side wall 25 provided at the outer end in the width direction is provided with a tongue-like hanging part 25a that extends somewhat longer than the other part. As shown in FIGS. 4 and 5, a plurality of the hanging portions 25 a are provided intermittently (two in the present embodiment) in the front-rear direction.

  As shown in FIGS. 5 and 6, a cover bracket 70 is disposed inside the rail bracket 20. The cover bracket 70 is a steel plate member for protecting a component disposed below the upper wall 21 of the rail bracket 20, and is disposed so as to cover the component from below. If it demonstrates concretely, the cover bracket 70 will be arrange | positioned in the position pinched | interposed between the side walls 25 provided in the width direction both ends of the rail bracket 20. FIG.

  The components protected by the cover bracket 70 are protected by the cover bracket 70 by being disposed in a space surrounded by the rail bracket 20 and the cover bracket 70. The parts protected by the cover bracket 70 are not particularly limited. As an example, a movable member that moves in conjunction with the seat body Sh and the upper rail R2 sliding in the front-rear direction, or a mechanical or electronic position detection that operates according to the position of the upper rail R2 after the sliding movement. It may be a device. Incidentally, in the configuration shown in FIG. 6, an operating body 80 that operates when the upper rail R <b> 2 moves forward from a predetermined position is provided as a part that is protected by the cover bracket 70.

  Moreover, the cover bracket 70 has a shape with a substantially U-shaped cross section. That is, both end portions in the width direction of the cover bracket 70 are bent so as to be directed upward. Of the both ends in the width direction of the cover bracket 70, the portions that rise upward are joined to the side walls 25 of the rail bracket 20. In other words, each side wall 25 of the rail bracket 20 is in contact with the end portion in the width direction of the cover bracket 70 on its inner surface. With such a configuration, the inward collapse of each side wall 25 is suppressed by the cover bracket 70.

  In the state where the upper rail R2 is attached to the rail bracket 20, as shown in FIG. 6, the upper end portion (indicated by a broken line in the figure) of the upper rail R2 comes to be positioned immediately below the cover bracket 70. More specifically, the upper rail R2 is attached to the rail bracket 20 in a state where the ceiling surface (upper end surface) of the upper rail R2 is in contact with the lower end surface of the cover bracket 70.

  Next, the relationship between the rail cover 10 and peripheral components will be described. The inner wall 12 of the rail cover 10 is engaged with the harness regulation wire 65 at the lower end portion thereof. More specifically, as shown in FIG. 6, the lower end portion of the harness regulating wire 65 is applied to the corner portion of the bent portion 14 formed at the lower end portion of the inner wall 12. Thereby, the lower end part of the inner wall 12 is in the state positioned in the width direction. Here, “positioned” means that the position is maintained, and specifically, it is regulated so as not to be displaced (so as not to flutter) due to deformation such as bending. It means to be in a state.

  On the other hand, the lower end portion of the outer wall 11 of the rail cover 10 is in contact with the deformation regulating wire 60 and the rail bracket 20. Thereby, the lower end portion of the outer wall 11 is also positioned in the width direction. More specifically, as shown in FIG. 6, the lower end portion of the outer wall 11 is in contact with the outer peripheral surface of the deformation regulating wire 60 on its inner side surface (side surface located on the inner side in the width direction). In the present embodiment, the portion of the lower end portion of the outer wall 11 that is in contact with the outer peripheral surface of the deformation regulating wire 60 is the portion located above the bent portion 13, strictly speaking, inward in the width direction. This is a portion that extends downward again after being bent.

  Further, as shown in FIG. 6, the bent portion 13 formed at the lower end portion of the outer wall 11 is in contact with the side wall 25 located at the outer end portion in the width direction in the rail bracket 20. More specifically, the portion of the bent portion 13 that is located on the innermost side in the width direction is in contact with the hanging portion 25a of the side wall 25 that is located at the outer end in the width direction. That is, the drooping portion 25a extends downward to a position where the bent portion 13 is formed in the vertical direction so that the bent portion 13 can come into contact therewith.

  As described above, in the present sheet S, the lower end portion of the outer wall 11 is in contact with the outer peripheral surface of the deformation regulating wire 60 and the side wall 25 of the rail bracket 20, thereby being positioned in the width direction. With such a configuration, it is possible to suppress fluttering at the lower end portion of the outer wall 11 with a relatively simple configuration.

  Moreover, in this sheet | seat S, the outer peripheral surface of the deformation | transformation control wire 60 is a curved surface shape. For this reason, compared with the case where the outer peripheral surface of the deformation | transformation control wire 60 is a plane, the contact area of the outer wall 11 and the outer peripheral surface of the deformation | transformation control wire 60 becomes smaller. As a result, the noise generated when the outer wall 11 is in sliding contact with the deformation regulating wire 60 is reduced.

  As shown in FIGS. 4 and 5, the deformation regulating wire 60 includes first extending portions 62 that extend downward at positions separated from each other in the front-rear direction, and a lower end portion of the first extending portion 62. A second extending portion 63 extending in the front-rear direction is provided to connect the two. Here, the second extending portion 63 is in contact with the outer wall 11 from the front end to the rear end. That is, the deformation regulating wire 60 is in contact with the outer wall 11 along the front-rear direction. Thereby, it becomes possible to suppress the fluttering of the lower end part of the outer wall 11 efficiently.

  Further, in the present sheet S, a portion of the lower end portion of the outer wall 11 positioned above the bent portion 13 is in contact with the outer peripheral surface of the deformation restriction wire 60. In addition, the bent portion 13 formed at the lower end portion of the outer wall 11 is in contact with the side wall 25 of the rail bracket 20 located on the inner side in the width direction than the deformation regulating wire 60. Thus, the outer wall 11 is in contact with a plurality of members arranged at different positions in the width direction. Thereby, it is possible to more efficiently suppress the fluttering of the lower end portion of the outer wall 11.

  Furthermore, in the present seat S, the lower end portion of the outer wall 11 abuts the hanging portion 25a extending to the lower end position of the outer wall 11 among the side walls 25 positioned at the outer end portion in the width direction of the rail bracket 20. ing. On the other hand, a plurality of hanging parts 25a are provided intermittently in the front-rear direction. With such a configuration, the rail bracket 20 can be further reduced in weight compared to a configuration in which the hanging portion 25a is provided in a state where the hanging portion 25a is continuous from the front end to the rear end of the rail bracket 20.

  Although the structural example of the vehicle seat of the present invention has been described above, the present invention is not limited to the above-described structural example, and other structural examples are also conceivable. For example, in the above configuration example, the lower end portion of the rail cover 10 is positioned in the width direction by contacting the deformation regulating wire 60 or the side wall 25 of the rail bracket 20. However, the configuration for positioning the lower end portion of the rail cover 10 is not limited to the above configuration. For example, a slit-like engagement hole (not shown) is formed in the side wall 25 of the rail bracket 20 and the lower end of the rail cover 10 is inserted into and engaged with the engagement hole. The structure which positions a part in the width direction can be considered.

  In the above configuration example, the upper rail R2 is fixed to the seat body Sh via the rail bracket 20, but the present invention is not limited to this. That is, the upper rail R2 may be directly fixed to the lower portion of the seat body Sh without using the rail bracket 20. In such a configuration, the vibration isolator 40 is disposed between the portion of the seat main body Sh where the upper end of the upper rail R2 is attached and the upper end of the upper rail R2.

  In the above configuration example, the lower end portion of the rail cover 10 is brought into contact with the side wall 25 of the rail bracket 20 in order to position the lower end portion of the rail cover 10. However, the member with which the lower end portion of the rail cover 10 is brought into contact is not limited to the rail bracket 20 as long as it is a member positioned below the position where the vibration isolator 40 is disposed. For example, the cover bracket 70 described above may include a portion extending downward, and the lower end portion of the rail cover 10 may contact the portion to be positioned in the width direction.

  In the above configuration example, the rail cover 10 is made of a resin material. The rail cover 10 made of a resin material is easily deformed in the same direction when a load is applied in the width direction. In other words, if the rail cover 10 is made of a resin material, the lower end portion thereof is likely to flutter in the width direction. If it is such a structure, the effect of this invention of suppressing the flutter of the lower end part of the rail cover 10 will come out more effectively. However, the material of the rail cover 10 is not limited to the resin material, and the rail cover 10 may be made of, for example, a metal material.

10 Rail cover (cover member)
11 Outer side wall (side wall located outside in the width direction)
12 Inner side walls 13, 14 Bending part 20 Rail bracket (bracket)
21 Upper wall 22 Front wall 23 Rear wall 24 Bolt hole 25 Side wall 25a Hanging part 30 Slide lock mechanism 40 Vibration isolator (vibration suppression body)
50 Side frame cover 60 Deformation restriction wire (extending member, linear member)
61 Attachment wire 62 First extension part 63 Second extension part 65 Harness restriction wire 70 Cover bracket 80 Actuator B Fastening bolt CF Seat cushion frame f1 Side frame f11 Side wall f12 Bottom wall (fixed part)
Ls Slide lock release lever R Slide rail mechanism R1 Lower rail (fixed rail)
R2 Upper rail (movable rail)
r21 Standing wall portion r22 Hollow body r23 Square tubular portion S This seat Sh Seat body S1 Seat cushion S2 Seat back S3 Headrest

Claims (7)

A fixed rail fixed to the body floor,
A movable rail that slides along the fixed rail;
A seat body which is disposed above the movable rail and slides together with the movable rail;
A vibration suppressor that is provided at a lower portion of the seat body and suppresses vibrations transmitted from the vehicle body floor to the seat body;
A cover member that covers a side surface of the movable rail,
The cover member is arranged so as to straddle the arrangement position of the vibration suppression body in the vertical direction, and a portion of the cover member that is located above the arrangement position of the vibration suppression body is fixed to the seat body. The lower end of the cover member is positioned in the width direction of the seat body by a member positioned below the position where the vibration suppressing body is disposed ,
The lower portion of the seat body includes a bracket for attaching the movable rail, and a fixing portion disposed at an upper position of the bracket for fixing the bracket.
The vibration suppression body is interposed between the bracket and the fixed portion in the vertical direction,
The cover member covers the bracket to which the movable rail is attached,
The member located below the position where the vibration suppressing body is disposed is the bracket,
The lower end portion of the cover member for a vehicle seat, characterized that you have been positioned in the width direction by the bracket. A fixed rail fixed to the body floor,
A movable rail that slides along the fixed rail;
A seat body which is disposed above the movable rail and slides together with the movable rail;
A vibration suppressor that is provided at a lower portion of the seat body and suppresses vibrations transmitted from the vehicle body floor to the seat body;
A cover member that covers a side surface of the movable rail,
The cover member is arranged so as to straddle the arrangement position of the vibration suppression body in the vertical direction, and a portion of the cover member that is located above the arrangement position of the vibration suppression body is fixed to the seat body. The lower end of the cover member is positioned in the width direction of the seat body by a member positioned below the position where the vibration suppressing body is disposed,
The lower portion of the seat body includes an extending member extending downward,
The extending member is spaced outward in the width direction from the vibration suppressing body, and an upper end portion of the extending member is at the same position in the vertical direction as the vibration suppressing body, and at least a part of the extending member is , Located below the arrangement position of the vibration suppression body,
The vehicle seat , wherein a lower end portion of the cover member is positioned in the width direction by the at least part of the extending member. The lower portion of the seat body includes a bracket for attaching the movable rail, and a fixing portion disposed at an upper position of the bracket for fixing the bracket.
The vibration suppression body is interposed between the bracket and the fixed portion in the vertical direction,
The cover member covers the bracket to which the movable rail is attached,
The member located below the position where the vibration suppressing body is disposed is the bracket,
The vehicle seat according to claim 2 , wherein a lower end portion of the cover member is positioned in the width direction by the bracket. The lower portion of the seat body includes an extending member extending downward,
The extending member is spaced outward in the width direction from the vibration suppressing body, and an upper end portion of the extending member is at the same position in the vertical direction as the vibration suppressing body, and at least a part of the extending member is , Located below the arrangement position of the vibration suppression body,
The lower end portion of the cover member, the vehicle seat according to claim 1 or 3, characterized in that it is positioned in the width direction by at least a portion of said extension member. Of the cover member, a side wall located on the outer side in the width direction comes into contact with an outer end portion located on the outer side in the width direction of the bracket, so that a lower end portion of the cover member is in the width direction. The vehicle seat according to claim 3 , wherein the vehicle seat is positioned. A bent portion that is bent toward the inside in the width direction is formed at the lower end of the side wall,
The outer end portion of the bracket extends downward to a position where the bent portion is formed in the vertical direction,
A lower end portion of the cover member is positioned in the width direction by a portion of the bent portion that is located on the innermost side in the width direction contacting the outer end portion of the bracket. The vehicle seat according to claim 5. The extending member is a linear member having a curved outer peripheral surface,
Of the cover member, the lower end of the cover member is positioned in the width direction by the side wall located on the outer side in the width direction being in contact with the outer peripheral surface of the linear member.
The vehicle seat according to claim 2 , wherein the cover member is made of a resin material.

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