JP5343376B2 - Vehicle seat slide rail and seat slide rail molding - Google Patents

Description

  The present invention relates to a vehicle seat slide rail for moving a vehicle seat and a seat slide rail molding.

  In general, the seat slide rail has a molding that closes the opening of the lower rail and prevents entry of foreign matter or the like. For example, Patent Document 1 discloses a conventional seat slide rail.

  As shown in FIG. 2 of Patent Document 1, a cross section perpendicular to the extending direction of the lower rail (15) in the seat slide rail is taken, and the vertical direction and the horizontal direction in the figure are assumed as a reference. The seat slide rail has a substantially symmetric shape about the vertical axis of the opening (16), and the lateral width of the opening (16) is set to (D2). The first molding (2) and the second molding (2B) project toward the central axis of the base (20) constituting the molding main body and the opening (16) of the lower rail (15) from the base (20). The center of the opening (16) further than the first piece (21) so as to be positioned above the first piece (21) and contact the upper rail (13). And a second piece (22) protruding toward the shaft. The base (20) and the first piece (21) are made of hard resin, and the second piece (22) is made of soft resin. Here, the first piece (21) of the first molding (2) and the first piece (21) of the second molding (2B) are asymmetric. As shown in FIG. 6 of Patent Document 1, the first piece of the second molding (2B) is not interfered with the first piece when the lock member (400) that fixes the position of the seat (1) is turned. (21) is configured shorter than the first piece (21) of the first molding (2), and is arranged along the periphery of the opening (16) of the lower rail (15).

With such a structure, the second piece (22) prevents dust and dirt from entering the lower rail (15). In the non-existing region (M2) where the upper rail (13) does not exist as shown in FIG. 1 of Patent Document 1 of the lower rail (15), it is difficult to prevent the second piece (22) from entering. When a foreign object having a relatively large weight tries to enter the opening (16), the first piece (21) supports the second piece (22) elastically deformed downward from below (stopper function). To prevent the entry of the foreign matter.
JP 2007-069854 A

  By the way, in recent years, there is a tendency to increase the width of the upper rail for reasons such as increasing the mounting strength of the seat. On the other hand, the shape of the lighter is rich in variations, and the thickness of the lighter is also increasing.

  However, in the conventional structure, it is hard to assume that the width (D2) of the opening (16) of the lower rail (15) and the width of the upper rail (13) located in the vicinity of the opening (16) are increased. Since each 1st piece part (21) produced with resin is arrange | positioned so that it may not interfere with an upper rail (13), it is necessary to set the width | variety between each 1st piece part (21) widely. Further, in the conventional structure, the first piece (21) of the second molding (2B) is shorter than the first piece (21) of the first molding (2). For this reason, the 1st piece part (21) of the 2nd molding (2B) cannot fully support the 2nd piece part (22) elastically deformed below from the lower part, and the 2nd piece part (22) is large. It will be deformed downward. As a result, for example, there is a risk that the thin lighter may enter into an opening that is wide open obliquely along the second piece (22) deformed downward from the second molding (2B) side.

  The present invention has been made in view of the above-described circumstances, and the purpose thereof is to increase the width of the upper rail in the vicinity of the opening, and to introduce a relatively heavy foreign object such as a lighter into the opening. The object is to provide a seat slide rail that can prevent intrusion.

In order to solve the above-mentioned problem, in the invention described in claim 1, a pair of upper wall portions disposed on the vehicle floor and opposed to each other and an opening portion extending linearly between the upper wall portions are provided on the upper surface. A lower rail provided in a part, linked to a vehicle seat, inserted into the opening and assembled to be movable with respect to the lower rail, and abutting or approaching the upper rail, In the vehicle seat slide rail having a vehicle seat slide rail molding that covers the upper wall portion and the opening, the vehicle seat slide rail molding includes a base portion that is located above the upper wall portion, and And a piece projecting toward the upper rail so as to be in contact with or close to the upper rail from a portion located at a side edge of the opening of the base. The piece portion is made of a resin material that can be elastically deformed by contact with the upper rail, and is connected to the base portion and connected to the base end portion from the base end portion. Also provided with a thick portion configured to be thick below, the tip of the thick portion has a sharp shape, and the thick portion gradually changes in thickness from the tip toward the base end, This is the gist.
In order to solve the above-mentioned problem, in the invention according to claim 6, the lower rail disposed on the vehicle floor has a base portion positioned above a pair of opposed upper wall portions provided on the upper surface portion thereof, and A holding portion projecting downward from the base portion so as to contact a side wall portion bent downward from the outer end of the upper wall portion of the lower rail, and an opening portion extending linearly between the upper wall portions of the base portion A piece projecting toward the upper rail so as to come into contact with or close to the upper rail inserted into the opening and movably assembled to the lower rail from a portion located on the side end; In the molding for a seat slide rail, the piece is made of a resin material that is elastically deformable by contact with the upper rail, and a base end connected to the base, and the base end A thick portion connected to the base end portion and formed thicker below the base end portion, and a tip of the thick portion has a sharp shape, and the thick portion is in a direction from the tip to the base end portion The gist is that the wall thickness gradually changes.

With the above configuration, when a force is applied from above and the one portion is elastically deformed downward, the thick portion comes into contact with the lower rail or the base of the molding. For this reason, even if a force continues to be applied further, the one part does not elastically deform downward greatly from the state of contact with the base part. As a result, it is suppressed that the opening width between each mall becomes wide.
In addition, since the tip of the thick part has a sharp shape due to the above configuration, the contact area between the two is reduced in a state where the one part is small and elastically deformed upward and the tip of the thick part is in contact with the upper rail. can do.

  According to a second aspect of the present invention, in the vehicle seat slide rail according to the first aspect, the lower surface of the thick portion of the piece projects downward from the tip of the piece toward the base end. The gist is to form a curved surface that is curved in a shape.

  With the above configuration, since the lower surface of the thick portion is a curved surface, the contact area between the two is reduced in a state where the base end portion of the one portion is greatly elastically deformed upward and the lower surface of the thick portion is in contact with the upper rail. can do.

In order to solve the above-mentioned problem, in the invention according to claim 3, a pair of upper wall portions disposed on the vehicle floor and opposed to each other and an opening portion extending linearly between the upper wall portions are provided on the upper surface. A lower rail provided in a part, linked to a vehicle seat, inserted into the opening and assembled to be movable with respect to the lower rail, and abutting or approaching the upper rail, In the vehicle seat slide rail having a vehicle seat slide rail molding that covers the upper wall portion and the opening, the vehicle seat slide rail molding includes a base portion that is located above the upper wall portion, and And a piece projecting toward the upper rail so as to be in contact with or close to the upper rail from a portion located at a side edge of the opening of the base. The piece portion is made of a resin material that can be elastically deformed by contact with the upper rail, and is connected to the base portion and connected to the base end portion from the base end portion. The thick portion of the piece portion has a slope extending obliquely downward from the lower end tip edge of the base end portion toward the upper rail. and which comprises a projecting portion configured to close the periphery of the opening of the base or the upper wall portion with projecting downward from the slant surface, the lower surface of the thick portion of the piece section, It is curved with a predetermined radius of curvature, and the lower end of the slope is located above the extended line of the radius of curvature.
In order to solve the above-mentioned problem, in the invention according to claim 7, the lower rail disposed on the vehicle floor has a base portion positioned above a pair of opposed upper wall portions provided on the upper surface portion thereof, and A holding portion projecting downward from the base portion so as to contact a side wall portion bent downward from the outer end of the upper wall portion of the lower rail, and an opening portion extending linearly between the upper wall portions of the base portion A piece projecting toward the upper rail so as to come into contact with or close to the upper rail inserted into the opening and movably assembled to the lower rail from a portion located on the side end; In the molding for a seat slide rail, the piece is made of a resin material that is elastically deformable by contact with the upper rail, and a base end connected to the base, and the base end A thick portion connected to the base end portion is formed below the base end portion, and the thick portion of the piece portion is obliquely downward from the lower end tip edge of the base end portion toward the upper rail. And a projecting portion configured to project downward from the slope and to be close to a periphery of the opening of the base or the upper wall portion, under surface of the thick portion is Kyokugata with a predetermined radius of curvature, the lower end of the slope is summarized in that located above the extension line of the radius of curvature.

With the above configuration, the thick portion includes a protruding portion configured to be close to the periphery of the opening of the base portion or the upper wall portion. Therefore, when the piece part is elastically deformed downward, the projecting part is first brought into contact, so that the elastic deformation of the piece part downward can be more suitably suppressed.
In addition, with the above configuration, the curved surface is curved with a predetermined radius of curvature, and the lower end of the inclined surface is located above the extension line of the radius of curvature, so that the elastic deformation of the upper portion of the piece portion 22 is prevented. While suppressing, the downward elastic deformation can be suppressed more suitably.

According to a fourth aspect of the present invention, in the vehicle seat slide rail according to any one of the first to third aspects, the tip of the thick portion has a sharp shape, and the thick portion extends from the tip. The gist is that the thickness gradually changes in the direction of the base end.

  With the above configuration, since the tip of the thick portion is sharp, it is possible to reduce the contact area between the two in the state where the small portion is elastically deformed upward and the tip of the thick portion is in contact with the upper rail. it can.

According to a fifth aspect of the present invention, in the vehicle seat slide rail according to any one of the first to fourth aspects, the molding is shown in a cross-sectional view along a direction intersecting the moving direction of the upper rail. Is a pair of members that are symmetrical with respect to the central axis of the opening in the vehicle vertical direction.

  With the above configuration, since the molding becomes a pair of members having a symmetrical structure, it is possible to suppress erroneous assembly and reduce the cost.

  As described above in detail, the vehicle seat slide rail of the present invention does not penetrate into the opening even when the width of the upper rail near the opening is increased, even if the foreign object is relatively heavy, such as a lighter. Can be suppressed.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment embodying the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 1, the slide rail 1 (vehicle seat slide rail) in the present embodiment includes an upper rail that is connected to the second seat 100 </ b> A in the one-box car, and an upper that is connected to the third seat 100 </ b> B that is a flip-up storage type. This is a form in which the rail is applied as a long slide rail that is movable in the vehicle longitudinal direction (A direction) by one lower rail.

<Relationship between slide rails 1 to 3>
As shown in FIG. 1, the slide rails 1 to 3 (vehicle seat slide rails) have different lengths in the longitudinal direction (A direction), and are arranged on the side wall W side in the vehicle width direction (B direction). The slide rail 2 can move only the second seat 100A (vehicle seat), and the slide rail 3 can move only the third seat 100B (vehicle seat). However, the slide rail 1 disposed on the side opposite to the side wall W of the vehicle interior is a long slide rail that allows not only the second seat 100A but also the third seat 100B to move, and is rearward of the vehicle relative to the slide rail 2, and It extends longer in front of the vehicle than the slide rail 3.

(Configuration of second sheet 100A and third sheet 100B)
<Configuration of Second Sheet 100A>
As shown in FIG. 2, the second seat 100A includes a seat cushion 110A that constitutes a seat portion and a seat back 120A that constitutes a backrest portion. The seat cushion 110A engages with slide rails 1 and 2 disposed on the vehicle floor F at both side ends of the lower surface thereof. The slide rails 1 and 2 are a pair of lower rails 11 fixed in parallel to the vehicle floor F and a pair of upper rails slidably assembled to the lower rails 11 connected to both side ends of the lower surface of the seat cushion 110A. Twelve. The lower rail 11 has a long shape extending in the vehicle front-rear direction (A direction), and has an upper surface portion 11A having an opening 11a extending in the longitudinal direction (A direction). Further, the upper rail 12 also has a long shape extending in the vehicle front-rear direction (A direction). Further, the slide rails 1 and 2 have a lock mechanism (not shown) for fixing and holding the upper rail 12 at a predetermined position with respect to the lower rail 11.

  Since the upper rail 12 is assembled to the lower rail 11 so as to be slidable in the vehicle front-rear direction (A direction), the second seat 100A is movable with respect to the vehicle floor F by a predetermined amount in the vehicle front-rear direction (A direction). Become. Then, the second sheet 100A can be fixedly held at a predetermined position by a lock mechanism (not shown). Further, the length of the upper rail 12 in the vehicle front-rear direction (A direction) is set shorter than the length of the lower rail 11 in the vehicle front-rear direction (A direction). Therefore, due to the movement of the upper rail 12, the slide rails 1 and 2 have a region M1 where the upper rail 12 exists and a region M2 where the upper rail 12 does not exist in the longitudinal direction (A direction).

<Configuration of third sheet 100B>
As shown in FIG. 3, the third seat 100 </ b> B is a side-splitting retractable vehicle seat, unlike the second seat. The third seat 100B includes a seat cushion 110B that constitutes a seat portion, and a seat back 120B that is reclinably linked to the rear of the seat cushion 110B and constitutes a backrest portion. The seat cushion 110 </ b> A is pivotally coupled to a bracket (not shown) at the side end of the vehicle interior side wall W and is fixed to the upper rail 12 of the slide rail 3. The upper rail 12 is slidably assembled to the lower rail 11 of the slide rail 3. Moreover, the side edge part on the opposite side to the vehicle interior side wall W side of the seat cushion 110B is detachably engaged with the upper rail 14 of the slide rail 1 via the seat leg 130B provided in the lower surface. A striker 140B is provided at each lower end of the seat leg 130B, and the striker 140B is fixed by a lock member 14b (see FIG. 5) of a lock device (not shown) disposed in the upper rail 14.

  In this way, the seat cushion 110B engaged with the slide rails 1 and 3 can move by a predetermined amount in the vehicle front-rear direction (A direction). Then, similarly to the second seat 100A, the third seat 100B can be fixedly held at a predetermined position by a lock mechanism (not shown) that fixes and holds the upper rail 14 at a predetermined position with respect to the lower rail 11. Similarly to the second seat 100A, the third seat 100B is set such that the length of the upper rail 14 in the vehicle front-rear direction (A direction) is shorter than the length of the lower rail 11 in the vehicle front-rear direction (A direction). Therefore, due to the movement of the upper rail 14, the slide rails 1 and 3 have a region M1 where the upper rail 14 exists and a region M2 where the upper rail 14 does not exist in the longitudinal direction (A direction).

  The third sheet 100B has a lock release lever (not shown) for releasing the engagement between the lock member 14b and the striker 140B. When the third seat 100B is flipped up and stored, the seat back 120A is first reclined until it becomes substantially flat with the seat cushion 110B, and the seat leg 130B is separated from the upper rail 14 by operating the lock release lever. In this state, the third seat 100B is rotated around the bracket and is stored along the side wall W of the vehicle interior. Then, the seat leg 130B is folded at a position along the seat cushion 110B.

(Detailed configuration of slide rails 1 to 3)
Since the slide rails 2 to 3 are the same as the moving part of the second rail 100 </ b> A of the slide rail 1, the detailed configuration is omitted and only the slide rail 1 will be described in detail.

  Taking a cross section perpendicular to the extending direction (A direction) of the opening 11a of the lower rail 11 in the region M2 where the upper rail 12 of the slide rail 1 does not exist, the vehicle vertical direction (C direction) and the vehicle width direction (B direction) ) As shown in FIG. 4, the slide rail 1 is sandwiched between the lower rail 11, the upper rail 12, a retainer 15 interposed between the lower rail 11 and the vehicle floor F, and the retainer 15 and the lower rail 11. It comprises a molding 20 that closes the opening 11a. The retainer 15 and the molding 20 extend in the longitudinal direction (A direction) of the lower rail 11 in the same manner as the lower rail 11.

<Detailed configuration of lower rail 11 and retainer 14>
As shown in the figure, the lower rail 11 has a planar bottom wall portion 11b and a pair of side wall portions 11d that are substantially perpendicular to the bottom wall portion 11b. And a substantially U-shape symmetric with respect to the central axis O in the direction).

  Hereinafter, the lower rail 11 will be described in detail. The bottom wall portion 11b is fixed to the vehicle floor F via a retainer 15, and a pair of bent portions 11c are formed at both ends of the bottom wall portion 11b. A pair of side wall portions 11d whose outer ends are bent upward are formed at the outer ends of the curved portions 11c, and the upper ends of the side wall portions 11d are substantially parallel to the bottom wall portion 11b. A pair of upper wall portions 11e that are bent into two are formed. Each upper wall portion 11e is bent downward from the inner end, and each upper wall portion 11e is formed with each flange portion 11f substantially parallel to each side wall portion 11d. A pair of groove portions 11g is formed between each side wall portion 11d and each flange portion 11f. Moreover, the opening part 11a whose width | variety is D1 is formed between each upper wall part 11e, ie, each flange part 11f. Here, assuming that a portion from the inner end of the upper surface of each upper wall portion 11e to the upper end of the flange portion 11f is a peripheral portion 11B, the peripheral portion 11B is bent into a substantially arc shape with a predetermined radius of curvature.

  As described above, the retainer 15 is disposed between the outer side of the lower rail 11 and the vehicle floor F. The retainer 15 is formed in a substantially U shape symmetric with respect to the central axis O so as to surround the bottom wall portion 11b and the side wall portions 11d of the lower rail 11. That is, the retainer 15 is formed with a bottom wall portion 15 a interposed between the vehicle floor F and the lower rail 11. A bent portion 15b is formed at both ends of the bottom wall portion 15a, and a side wall portion 15d is formed by bending the bent portion 15b upward. The side wall part 15d has a side wall part 15d provided with a locking part 15c having a concave shape in the outer side in the vehicle width direction (B direction) at the upper end thereof, and the side wall part 15d of the retainer 15 and the lower rail 11 An insertion space 15e is formed between the side wall portion 11d.

<Detailed configuration of upper rails 12 and 14>
The upper rail 12 (14) is linked to the second seat 100A (third sheet 100B), and is inserted into the opening 11a formed by the pair of upper wall portions 11e so as to be movable with respect to the lower rail 11. It has been found.

  As shown in FIG. 4, the upper rail 12 connected to the second seat 100A is parallel to the first to third vertical wall portions 12a, 12c, and 12e that are substantially parallel to the side wall portion 11d of the lower rail 11, and the upper wall portion 11e. And has a flange portion 12f having a portion which is a substantially inverted T-shape symmetrical to the central axis O as a whole.

Hereinafter, the upper rail 12 will be described in detail. The pair of first vertical wall portions extends in the vehicle vertical direction (C direction), and is linked to the second seat 100A at the upper portion thereof. Each of the first vertical wall portions 12a is formed with a pair of first bent portions 12b bent inward so as to approach each other from the lower end thereof. Each first bent portion 12b is formed with a pair of second vertical wall portions 12c that are in contact with each other from the inner end and are bent so as to be substantially parallel to the first vertical wall portion 12a. Each of the second vertical wall portions 12c is formed with a pair of second bent portions 12d that are bent outward so as to be separated from the lower ends thereof. Each of the second bent portions 12d is formed with a pair of third vertical wall portions 12e bent from the outer end so as to be substantially parallel to the first vertical wall portion 12a again. Furthermore, the lower end of each 3rd vertical wall part 12e is bend | folded outside, and a pair of flange part 12f by which the outer side end was turned up is formed. As described above, the upper rail 12 is inserted into the opening 11 a and assembled to the lower rail 11. Therefore, the upper end of each flange portion 12f of the upper rail 12 is located in each groove portion 11g of the lower rail 11, and the lower end of the second vertical wall portion 12c is located in the opening portion 11a on the plane formed by the upper surface portion 11A. Yes. A roller (not shown) that contacts both the lower wall 11 and the flange portion 12 f of the upper rail 12 is disposed in the space formed by the bottom wall portion 11 b of the lower rail 11 and the upper rail 12. It has become freely movable.

Here, a cross section perpendicular to the extending direction (A direction) of the opening 11a of the lower rail 11 in the region M1 where the upper rail 14 of the third seat 100B of the slide rail 1 is present is taken, and the vehicle vertical direction (C direction). And the vehicle width direction (direction B). As shown in FIG. 5, the upper rail 14 has a pair of vertical wall portions 14 a that extend in the vehicle vertical direction at regular intervals and are substantially parallel to the flange portion 11 f of the lower rail 11. A lock device (not shown) is disposed on the upper rail 14, and each lock member 14b of the lock device is disposed between the vertical wall portions 14a. As described above, since the upper rail 14 is inserted into the opening portion 11a and assembled to the lower rail 11, each vertical wall portion 14a is located in the opening portion 11a. A roller that is linked to the lower end portion of the vertical wall portion 14a and is rotatably contacted with the bottom wall portion 11b of the lower rail 11 in the space between the vertical wall portion 14a of the upper rail 14 and the bottom wall portion 11b of the lower rail 11 (Not shown) is provided, and the upper rail 14 is movable relative to the lower rail 11.

<Detailed configuration of mall 20>
As shown in FIGS. 4 and 6, the pair of moldings 20 is symmetrical with respect to the central axis O in the vehicle vertical direction (C direction) in a cross-sectional view. And it is arrange | positioned above 11 A of upper surface parts of the lower rail 11, ie, the upper wall part 11e of the lower rail 11, and the opening part 11a. The pair of moldings 20 includes a central axis of the opening 11a in a sectional view of a slit 20a through which the upper rails 12 and 14 are inserted and having a width D2 and extending in the longitudinal direction (A direction) of the lower rail 11. It is formed on O. That is, the upper rails 12 and 14 are inserted into the slit 20 a of the molding 20 and the opening 11 a of the lower rail 11. The molding 20 has a base portion 21 that is substantially parallel to the side wall portion 11d of the lower rail 11, and a sandwiching portion 23 that is substantially perpendicular to the base portion 21, and has a generally T-shaped cross section as a whole. .

  Hereinafter, the mall 20 will be described in detail. The base portion 21 is located above the upper surface of the vehicle floor F in the vicinity of the upper wall portion 11e and the side wall portion 11d of the lower rail 11. A piece 22 projects from the side end 21 a located at the side end of the opening 11 a of the base 21 toward the central axis O of the opening 11 a, that is, toward the upper rail 12. Further, a clamping portion 23 projects downward from the base portion 21 so as to contact the side wall portion 11d bent downward from the outer end of the upper wall portion 11e of the lower rail 11.

  The base portion 21 and the sandwiching portion 23 are formed of a hard resin, and the base portion 21 extends from the peripheral edge portion 11B of the lower rail 11 to the vehicle floor F near the side wall portion 15c of the retainer 15, and the upper wall portion of the lower rail 11 11e and the upper end of the side wall 15c of the retainer 15 and the upper surface of the vehicle floor F.

  The clamping part 23 has an engaging part 23a that projects in the direction opposite to the direction in which the piece part 22 projects at the lower end. The molding part 20 is engaged with the lower rail 11 and the retainer 15 by the clamping part 23 being inserted into the insertion space 15 e and being sandwiched between the side wall part 11 d of the lower rail 11 and the side wall part 15 d of the retainer 15. Here, since the engaging portion 23 a having a convex shape is fitted into the engaging portion 15 c having a concave shape of the retainer 15, the removal of the molding 20 is suppressed. Further, a metal reinforcing member 23 b is embedded in the holding portion 23, and the reinforcing member 23 b reinforces the strength of the holding portion 23.

  The piece portion 22 has a base end portion 24 connected to the inner end of the base portion 21 and a thick portion 25 configured to be thicker below the base end portion 24. The lower surface of the thick portion 25 has a curved surface that protrudes downward from the distal end toward the base end portion 24, and the piece portion 22 forms a substantially knife shape in a sectional view. The piece 22 is made of a softer resin than the base 21 and the clamping portion 23 so that the piece 22 can be elastically deformed when coming into contact with the upper rails 12 and 14. That is, the base 21 and the piece 22 are molded in two colors using different resin materials.

  The detailed structure of the piece part 22 will be described in a sectional view. The upper surface of the thick portion 25 constitutes a ridge surface 25 a that is flush with the upper surface of the base end portion 24. The lower surface of the thick portion 25 constitutes an inclined surface 25b (partially indicated by a two-dot chain line in FIG. 6) and a blade surface 25c. The inclined surface 25b extends obliquely downward from the lower end edge of the base end portion 24 toward the center axis O in the vehicle vertical direction (C direction), that is, the upper rails 12 and 14. The blade surface 25c is bent in a substantially arc shape with a predetermined radius of curvature from the lower end of the slope 25b to the tip of the peak surface 25a. In this manner, the distal end portion 25A of the thick portion has a sharp shape, and the thick portion gradually changes in thickness from the distal end portion 25A toward the proximal end portion 24. Here, the blade surface 25c is set so that the tip portion 25A of the piece portion 22 does not interfere with the upper striker 140B when the blade surface 25c contacts the vertical wall portion 14a of the upper rail 14 as shown in FIG. Has been.

Moreover, the lower end part of the piece part 22 is a concave-shaped part, ie, a step part, below. More specifically, the thick portion 25 has a protruding portion 26 that protrudes downward from the inclined surface 25b. The protrusion 26 has a vertical surface 26 a that extends substantially perpendicularly from the bottom edge of the bottom surface of the base end portion 24, and a vertical surface 26 b that extends substantially perpendicularly from the inclined surface 25 b of the thick portion 25. That is, the protrusion 26 has a substantially triangular shape. Here, the lower end of the protruding portion 26, that is, the portion where the vertical surfaces 26a and 26b intersect each other is above the extension line of the arc of the blade surface 25c, that is, above the extension line indicated by the one-dot chain line in FIG. To position. The protruding portion 26 is configured so as to be close to the side end portion 21 a of the base portion 21 and the peripheral edge portion 11 </ b> B of the lower rail 11.

<State of Mall 20>
The state of the molding 20 in each M1, M2 area of each sheet 100A, 100B will be described.

  In the slide rails 1 and 2 in the M2 region of the second seat 100A and the third seat 100B, as shown in FIG. 4, the piece portion 22 of the molding 20 covers the opening 11a without being deformed. Therefore, the width | variety which accept | permits the penetration | invasion of a foreign material becomes small from the width | variety D1 of the opening part 11a to the width | variety D2 of a slit.

  In the slide rails 1 and 2 in the M1 region of the second seat 100A, as shown in FIG. 8, the piece portion 22 of the molding 20 is elastically deformed upward so that the tip portion 25A of the thick portion 25 is the second vertical portion of the upper rail 12. It contacts the wall 12c.

  In the slide rails 1 and 2 in the M1 region of the third seat 100B, as shown in FIG. 5, the piece portion 22 of the molding 20 is elastically deformed upward, and the blade surface 25c of the thick portion 25 is the vertical wall portion of the upper rail 12. 14a abuts.

(Operational effects obtained in this embodiment)
With the above configuration, the following effects can be obtained.

  (1) For example, as shown in FIG. 7, a force is applied from above so that foreign matter (indicated by a two-dot chain line in the figure) enters the opening 11 a in the M2 region of the second sheet 100 </ b> A and the third sheet 100 </ b> B. When 22 is elastically deformed downward, the lower surface of the thick portion 25 contacts the peripheral edge portion 11B of the lower rail 11 or the side end portion 21a of the base portion 21 of the molding 20. For this reason, even if force continues to be applied further, the piece portion 22 will not be elastically deformed downward greatly from the state where it abuts against the base portion 21. As a result, it is suppressed that the width of the slit 20a between the moldings 20 is widened. Thus, even when the upper rail having the increased width of the upper rail 14 near the opening 11a, such as the third seat 100B, is applied to the slide rail 1, that is, when the width of the opening 11a is increased, the lighter is compared. Even if it is a foreign object with a reasonable weight, intrusion can be suppressed.

  Further, for example, as shown in FIG. 9, in the opening portion 11a in the M2 region of the second sheet 100A and the third sheet 100B, the opening portion 11a is obliquely formed along the molding 20 while the foreign matter deforms the molding 20 on one side downward. Assume that you are trying to invade. Even in this case, the other piece portion 22 is elastically deformed downward, and the lower surface of the thick portion 25 comes into contact with the peripheral edge portion 11B of the lower rail 11 or the side end portion 21a of the base portion 21 of the molding 20. For this reason, even if force continues to be applied further, the piece portion 22 will not be elastically deformed downward greatly from the state where it abuts against the base portion 21. As a result, foreign objects can be prevented from entering from an oblique direction.

  (2) Since the blade surface 25c of the thick portion 25 is a curved surface, for example, as shown in FIG. In a state where the blade surface 25c of the thick portion 25 is in contact with the vertical wall portion 14a of the upper rail 14, the contact area between the piece portion 22 of the molding 20 and the upper rail 14 can be reduced. Therefore, the sliding resistance when the upper rail 14 is moved can be reduced.

  (3) As shown by a two-dot chain line in FIG. 5, for example, the downward elastic deformation of the piece 22 can be more suitably suppressed by extending the blade surface 25c downward. However, although the downward elastic deformation can be suppressed, the upward elastic deformation becomes large in a state where the blade surface 25 c is in contact with the vertical wall portion 14 a of the upper rail 14. That is, the suppression of downward elastic deformation and the upward elastic deformation are in a trade-off relationship.

  As shown in FIG. 5, when the blade surface 25c comes into contact with the vertical wall portion 14a of the upper rail 14, the blade surface 25c of the thick portion 25 is formed so that the tip portion 25A of the piece portion 22 does not interfere with the upper striker 140B. Is set. And the thick part 25 has the protrusion part 26 in which the lower end is located above the extended line of the circular arc of the blade surface 25c while approaching the side edge part 21a of the base 21, and the peripheral part 11B of the lower rail 11. FIG. For this reason, it is possible to suppress the elastic deformation of the piece portion 22 upward and to suppress the elastic deformation of the lower portion more suitably. That is, when the blade surface 25c of the thick portion 25 abuts on the vertical wall portion 14a of the upper rail 12, the tip portion is prevented from interfering with the striker 140B, and is a foreign object having a relatively heavy weight. Can also be prevented from entering the opening 11a.

  (4) Since the distal end portion 25A of the thick portion 25 is sharp, for example, as shown in FIG. 8, the base end portion 24 of the piece portion 22 is small and elastically deformed upward like the M1 region of the second sheet 100A In the state where the tip portion 25A of the thick portion 25 is in contact with the second vertical wall portion of the upper rail 12, the contact area between the piece portion 22 of the molding 20 and the upper rail 12 can be reduced. Therefore, the sliding resistance when the upper rail 12 is moved can be reduced.

  (5) Since the molding 20 is a pair of members symmetrical with respect to the center axis O in the vehicle vertical direction (C direction), it has a symmetrical structure. As a result, erroneous assembly when assembling the mall 20 can be suppressed. Furthermore, since it is the same shape, it can be molded with the same mold, and the cost can be reduced.

  (6) Since the piece portion 22 is made of a soft resin compared to the base portion 21 and the sandwiching portion 23, for example, even if the upper rail locking member interferes with the piece portion 22, the piece portion It does not interfere with the lock member by deforming upward.

(Modification example in this embodiment)
In addition, you may change the said embodiment as follows.

  -In above-mentioned embodiment, although the protrusion part 26 has comprised substantially triangular shape, it may comprise shapes, such as square shape, for example. Further, the protruding position of the protruding portion 26 may be anywhere on the slope 25b. With the above configuration, it is possible to obtain the same effects as those described in (1) to (6).

  -In the said embodiment, although the thick part 25 of the piece part 22 was provided with the protrusion part 26, it does not necessarily need to be provided. With the above configuration, the same effects as those described in (1), (2), (4) to (6) can be obtained.

  In the above embodiment, the molding 20 is a pair of members with respect to the center line of the opening portion 11a. For example, the molding 20 is connected to the distal end portion 25A of each piece at both ends in the longitudinal direction (A direction). The molding 20 itself may be an integral member having a slit 20a having a width D2 at the center thereof. With the above configuration, the same effects as those described in (1) to (4) and (6) can be obtained.

  In the above embodiment, the slide rails 1 to 3 extend in the vehicle longitudinal direction (A direction), but may extend in the vehicle width direction (B direction), for example.

  In the above-described embodiment, the third seat 100B is a laterally leashing and storing type vehicle seat, but may of course be a storing and storing type seat or a detachable seat.

The schematic diagram of a vehicle upper direction view showing arrangement of an example of a slide rail in an embodiment of the present invention. The whole perspective view of the second seat to which an example of the slide rail in the embodiment of the present invention is applied. The whole perspective view of the 3rd sheet to which an example of the slide rail in the embodiment of the present invention is applied. Sectional drawing in the area | region M2 of FIG. Sectional drawing in the area | region M1 of FIG. The enlarged view in the one mall periphery of FIG. Sectional drawing when a foreign material tries to enter from above in the region M2 of FIGS. Sectional drawing in the area | region M1 of FIG. FIG. 4 is a cross-sectional view when a foreign object tries to enter obliquely in the region M2 of FIGS.

Explanation of symbols

1 Slide rail (vehicle seat slide rail)
2 Slide rail (vehicle seat slide rail)
3 Slide rail (vehicle seat slide rail)
DESCRIPTION OF SYMBOLS 11 Lower rail 11A Upper surface part 11a Opening part 11e Upper wall part 12 Upper rail 14 Upper rail 20 Mole 21 Base 22 Single part 24 Base end part 25 Thick part 100A Second seat (vehicle seat)
100B Third seat (vehicle seat)
F car floor

Claims (7)

A lower rail provided on the upper surface with a pair of upper wall portions arranged on the vehicle floor and facing each other and an opening extending linearly between the upper wall portions;
An upper rail that is linked to the vehicle seat and that is inserted into the opening and movably assembled to the lower rail;
In the vehicle seat slide rail having a vehicular seat slide rail molding that abuts or approaches the upper rail and covers the upper wall portion and the opening,
The molding for the vehicle seat slide rail includes a base portion located above the upper wall portion and a portion located at a side end of the opening portion of the base portion so as to contact or be close to the upper rail. And a piece projecting toward the rail,
The piece portion is made of a resin material that can be elastically deformed by contact with the upper rail, and is connected to the base portion and connected to the base end portion than the base end portion. It is equipped with a thick portion that is configured to be thick at the bottom,
The vehicle seat slide rail, wherein a tip of the thick portion has a sharp shape, and the thick portion gradually changes in thickness from the tip toward the base end.   2. The vehicle seat slide rail according to claim 1, wherein a lower surface of the thick portion of the piece portion forms a curved surface that protrudes downwardly from the distal end of the piece portion toward the base end portion. A lower rail provided on the upper surface with a pair of upper wall portions arranged on the vehicle floor and facing each other and an opening extending linearly between the upper wall portions;
An upper rail that is linked to the vehicle seat and that is inserted into the opening and movably assembled to the lower rail;
In the vehicle seat slide rail having a vehicular seat slide rail molding that abuts or approaches the upper rail and covers the upper wall portion and the opening,
The molding for the vehicle seat slide rail includes a base portion located above the upper wall portion and a portion located at a side end of the opening portion of the base portion so as to contact or be close to the upper rail. And a piece projecting toward the rail,
The piece portion is made of a resin material that can be elastically deformed by contact with the upper rail, and is connected to the base portion and connected to the base end portion than the base end portion. It is equipped with a thick portion that is configured to be thick at the bottom,
The thick part of the one part has a slope extending obliquely downward from the lower surface leading edge of the base end part toward the upper rail, and protrudes downward from the slope and the base or the A protrusion configured to be close to the periphery of the opening of the upper wall,
Under surface of the thick portion of the piece is Kyokugata with a predetermined radius of curvature,
A lower end of the slope is a vehicle seat slide rail located above an extension line of the curvature radius.   4. The vehicle seat slide rail according to claim 3, wherein a tip of the thick portion has a sharp shape, and the thick portion gradually changes in thickness from the tip toward the base end portion. 5.   5. The molding is a pair of members that are symmetrical with respect to a central axis in a vehicle vertical direction of the opening in a cross-sectional view along a direction intersecting with a moving direction of the upper rail. The vehicle seat slide rail according to any one of the above. A base portion located above a pair of upper wall portions opposed to each other provided on the upper surface of the lower rail disposed on the vehicle floor;
A holding part that protrudes downward from the base part so as to contact a side wall part that is bent downward from an outer end of the upper wall part of the lower rail;
From the portion located at the side end of the opening that extends linearly between the upper wall portions in the base portion, the upper rail is inserted into the opening and movably assembled to the lower rail. In the seat slide rail molding having a piece projecting toward the upper rail so as to be close to each other,
The piece portion is made of a resin material that can be elastically deformed by contact with the upper rail, and is connected to the base portion and connected to the base end portion than the base end portion. It is equipped with a thick portion that is configured to be thick at the bottom,
A molding for a seat slide rail, wherein a tip of the thick portion has a sharp shape, and the thick portion gradually changes in thickness from the tip toward the base end. A base portion located above a pair of upper wall portions opposed to each other provided on the upper surface of the lower rail disposed on the vehicle floor;
A holding part that protrudes downward from the base part so as to contact a side wall part that is bent downward from an outer end of the upper wall part of the lower rail;
From the portion located at the side end of the opening that extends linearly between the upper wall portions in the base portion, the upper rail is inserted into the opening and movably assembled to the lower rail. In the seat slide rail molding having a piece projecting toward the upper rail so as to be close to each other,
The piece portion is made of a resin material that can be elastically deformed by contact with the upper rail, and is connected to the base portion and connected to the base end portion than the base end portion. It is equipped with a thick portion that is configured to be thick at the bottom,
The thick part of the one part has a slope extending obliquely downward from the lower surface leading edge of the base end part toward the upper rail, and protrudes downward from the slope and the base or the A protrusion configured to be close to the periphery of the opening of the upper wall,
Under surface of the thick portion of the piece is Kyokugata with a predetermined radius of curvature,
The lower end of the slope is a seat slide rail molding located above the extension line of the radius of curvature.

Images