JP2015217733A - Vehicle seat having slide mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide mechanism for a vehicle seat capable of inhibiting deterioration of the function which surely prevents intrusion of foreign materials into the inside of a lower rail even when a nonslide state continues for a long term.SOLUTION: A slide mechanism 4 of a vehicle seat comprises a lower rail 10 disposed on a floor and having an opening 12, and an upper rail 30 assembled to the vehicle seat and slidable for the lower rail 10 via the opening 12. Fins 22, 22 are assembled on both edges of the opening 12 of the lower rail 10 along a longitudinal direction so as to clog the opening 12. The fin 22 is set widely to surely prevent intrusion of foreign materials into the inside of the lower rail 10 via the opening 12. Besides, a pressing member 54 is provided to the upper rail 30 side to press so as to return the fin 22a retained in a retroflexion state due to interference to the upper rail 30 to the state before retroflexion.

Description

  The present invention relates to a vehicle seat provided with a slide mechanism.

  Conventionally, for example, a second seat (second row seat) and a third seat (third row seat) in a vehicle such as an automobile have a structure that can slide largely back and forth with respect to the floor. This sliding is performed by a slide mechanism including a lower rail having an opening and an upper rail that can slide with respect to the lower rail through the opening. The lower rail of the slide mechanism is embedded so as to be a flat (flat) shape with respect to the surface of the floor floor so that the legs of the seated person are not caught from the viewpoint of improving the seating ability of the seated person. Here, in Patent Document 1 below, for example, as shown in FIGS. 8 to 10, both edges of the opening 112 of the lower rail 110 are made of a synthetic resin having flexibility along the longitudinal direction so as to close the opening 112. A second sheet 101 having a slide mechanism 104 with a fin 122 assembled thereon is disclosed. Thereby, foreign matter can be prevented from entering the interior of the lower rail 110 from the floor floor f through the opening 112, so that it is possible to suppress the occurrence of problems due to foreign matter entering the slide of the second seat 101.

JP 2009-220552 A

  However, in the technique of Patent Document 1 described above, the fin 122 is set to be wide in order to reliably prevent foreign matter from entering the lower rail 110 from the floor floor f through the opening 112 (in FIG. 10). w indicates a broad meaning). When the width is set so wide, the fin 122 a of the fin 122 corresponding to the upper rail 130 is in a state where the tip of the fin 122 a interferes with the upper rail 130 due to the thickness of the upper rail 130. That is, the fin 122a of the part corresponding to the upper rail 130 in the fin 122 is in a state where its tip is warped (see FIGS. 10 to 11). Therefore, if the state in which the second seat 101 does not slide for a long period of time continues even after the upper rail 130 slides, the warped state of the fin 122 is maintained (see FIG. 12), and the function of the fin 122 (the lower rail 110) In some cases, the function of reliably preventing foreign matter from entering the inside of the inside may deteriorate.

  The present invention is intended to solve such a problem, and its purpose is to reduce the function of reliably preventing foreign matter from entering the lower rail even if the slide does not slide for a long period of time. It is providing the slide mechanism of the vehicle seat which can suppress this.

  The present invention is for achieving the above object, and is configured as follows. The invention according to claim 1 is provided with a slide mechanism including a lower rail disposed on the floor and having an opening, and an upper rail assembled to the vehicle seat and slidable with respect to the lower rail through the opening. Yes. Fins are assembled along the longitudinal direction on both edges of the opening of the lower rail so as to close the opening. The fin is set to be wide in order to reliably prevent foreign matter from entering the lower rail through the opening. On the upper rail side, there is provided a pressing member that presses the fin held in the warped state by interference with the upper rail so as to return it to the state before the warp.

  According to this configuration, as in the prior art, the fins at the portions corresponding to the upper rails of the fins are in a state in which their tips interfere with the upper rails due to the thickness of the upper rails. That is, the fin of the part corresponding to the upper rail in the fin is in a state where its tip is warped. Therefore, as in the prior art, if the state in which the vehicle seat does not slide for a long period of time continues even after the upper rail (vehicle seat) slides, the fin warp state is maintained. However, unlike the prior art, a roller body is assembled on the upper rail side. Therefore, as the upper rail slides, the roller body presses the fin held in a warped state. Therefore, the fin held in the warped state is returned to the state before the warp. Therefore, even if the vehicle seat does not slide for a long period of time, the function of fins (a function that reliably prevents the entry of foreign matter into the lower rail) can be suppressed.

  The invention according to claim 2 is a vehicle seat provided with the slide mechanism according to claim 1, wherein the pressing member is composed of a roller that is rotatable along the longitudinal direction of the lower rail.

  According to this structure, compared with the case where the press member is comprised from other members (for example, board | plate material, a press plate, etc.) different from a roller, the fin hold | maintained in the curvature state can be pressed smoothly. Therefore, it is possible to prevent the fins from being damaged when pressed.

  Moreover, invention of Claim 3 is a vehicle seat provided with the slide mechanism in any one of Claims 1-2, Comprising: The press member is provided in the upper rail side via the support bracket. .

  According to this configuration, the support bracket can be removed from the upper rail side. Therefore, for example, even when the roller is broken, it can be easily replaced or repaired.

1 is an overall perspective view of a second sheet according to an embodiment of the present invention. The disassembled state of FIG. 1 is shown. It is an enlarged view of the principal part of FIG. It is sectional drawing of the IV-IV line of FIG. In FIG. 4, it is a figure which shows the state which the second sheet slid. In FIG. 5, it is a figure which shows the state in the middle of returning to the state before the slide 2nd sheet | seat slides. FIG. 7 is a diagram illustrating a state where the returned second sheet is slid again in FIG. 6. It is a whole perspective view of the 2nd sheet | seat which concerns on a prior art. FIG. 9 shows the exploded state of FIG. It is an enlarged view of the principal part of FIG. It is sectional drawing of the XI-XI line of FIG. In FIG. 11, it is a figure which shows the state which the 2nd sheet | seat slid.

  Hereinafter, the form for implementing this invention is demonstrated using FIGS. In the following description, “second seat 1 (hereinafter simply referred to as“ second seat 1 ”) of an automobile (a three-row seat minivan)” will be described as an example of “vehicle seat”. In the following description, the terms “up”, “down”, “front”, “rear”, “left”, “right” refer to the directions of “up”, “down”, “front”, “rear”, “left”, “right”. The upper, lower, front, rear, left, and right directions are shown with reference to the second sheet 1 placed inside.

  First, the configuration of the second sheet 1 will be described. The second seat 1 includes, for example, a known seat cushion 2 and a known seat back 3 (see FIG. 1). The second seat 1 includes a slide mechanism 4 so that the seat cushion 2 can be manually slid back and forth when the lock mechanism (details are not shown) is released.

  As shown in FIGS. 2 to 3, the slide mechanism 4 mainly includes a lower rail 10 having an opening 12 and an upper rail 30 that can slide with respect to the lower rail 10 through the opening 12. The lower rail 10 and the upper rail 30 are provided to form a pair on the left and right, as is apparent from FIG.

  In the same manner as the lower rail 110 of the prior art, the lower rail 10 is slidable with respect to the surface of the floor floor F so that the legs of the seated person (not shown) are not caught from the viewpoint of improving the seating ability of the seated person (not shown). It is embedded to be (flat). This description corresponds to “arranged on the floor” in the claims. Further, moldings 20 and 20 made of synthetic resin having rigidity along the longitudinal direction are assembled on the left and right upper surfaces 10a and 10a of the lower rail 10 (see FIGS. 3 to 4).

  A fin 22 made of a synthetic resin having flexibility is formed along the longitudinal direction of the molding 20 so as to project toward the facing molding 20 (integrated molding). If formed in this way, the fins 22 will also face each other. Accordingly, the opposing fins 22 and 22 block the opening 12 of the lower rail 10.

  In addition, the fin 22 is also set to be wide in order to reliably prevent foreign matter from entering the lower rail 10 from the floor floor F through the opening 12, similarly to the fin 122 of the prior art. For this reason, the fin 22 of the fin 22 corresponding to the upper rail 30 of the fin 22 is in a state where its tip interferes with the upper rail 30 due to the thickness of the upper rail 30. The slide mechanism 4 is configured in this way.

  The upper rail 30 of the slide mechanism 4 thus configured is assembled to a cushion frame (not shown) of the seat cushion 2 via the bracket 40. Roller bodies 50 and 50 are assembled to the front and rear ends of the bracket 40 (see FIGS. 2 to 3). The roller body 50 includes a substantially L-shaped support bracket 52 and a roller 54 pivotally attached to the support bracket 52 along the longitudinal direction of the lower rail 10. The roller 54 corresponds to a “pressing member” recited in the claims.

  The roller body 50 is assembled to the end portion of the bracket 40 so that the support bracket 52 is fastened to the bolt B that fixes the upper rail 30 and the bracket 40 together. When assembled in this manner, as a result, the roller 54 is assembled to the end portion of the bracket 40 via the support bracket 52.

  Moreover, the shield 60 is assembled | attached to this bracket 40 from a viewpoint of improving the designability of improving appearance. Further, a cover 62 for concealing the roller body 50 is assembled on the front side of the left shield 60 among the left and right shields 60, 60. The slide mechanism 4 is configured in this way.

  Then, the effect | action of the sliding mechanism 4 of the second sheet | seat 1 mentioned above is demonstrated. In the molding 20 of the lower rail 10 of the slide mechanism 4, as described above, a fin 22 made of a synthetic resin having flexibility is formed along the longitudinal direction so as to protrude toward the molding 20 facing each other. . The fins 22 are also set wide in order to reliably prevent foreign matter from entering the lower rail 10 from the floor floor F through the openings 12, as with the conventional fins 122.

  Therefore, as in the related art, the fin 22 a of the fin 22 corresponding to the upper rail 30 is in a state where the tip of the fin 22 a interferes with the upper rail 30 due to the thickness of the upper rail 30. That is, the fin 22a of the part corresponding to the upper rail 30 among the fins 22 is in a state where the tip is warped (see FIG. 4). Therefore, as in the prior art, if the state in which the second seat 1 does not slide for a long period of time continues even after the upper rail 30 (second seat 1) slides, the warped state of the fin 22 is maintained (FIG. 5). reference).

  However, unlike the prior art, roller bodies 50 and 50 are assembled to the bracket 40. Therefore, as the upper rail 30 slides, the roller bodies 50, 50 press the fins 22 held in a warped state (see FIG. 6). Accordingly, the fin 22 held in the warped state is returned to the state before the warp (see FIG. 7).

  The slide mechanism 4 of the second seat 1 according to the embodiment of the present invention is configured as described above. According to this configuration, the roller bodies 50 and 50 are assembled to the bracket 40. Therefore, as described above, as the upper rail 30 slides, the roller bodies 50, 50 press the fins 22 held in the warped state (see FIG. 6). Accordingly, the fin 22 held in the warped state is returned to the state before the warp (see FIG. 7). Thus, even if the second seat 1 does not slide for a long period of time, the function of the fins 22 (a function that reliably prevents the entry of foreign matter into the lower rail 10) is suppressed from decreasing. it can.

  Further, according to this configuration, the pressing member includes the roller 54, and the roller 54 is pivotally attached to the support bracket 52 so as to be rotatable along the longitudinal direction of the lower rail 10. Therefore, as compared with the case where the pressing member is composed of another member (for example, a plate material, a pressing plate, etc.) different from the roller 54, the fin 22 held in the warped state can be smoothly pressed. Accordingly, it is possible to prevent the fins 22 from being damaged when pressed.

  According to this configuration, the roller 54 is assembled to the end portion of the bracket 40 via the support bracket 52. Therefore, the support bracket 52 can be removed from the bracket 40. Therefore, for example, even when the roller 54 is damaged, it can be easily replaced or repaired.

  The contents described above are only related to one embodiment of the present invention, and do not mean that the present invention is limited to the above contents.

  In the embodiment, “second seat 1 of automobile (mini-van with three rows of seats)” has been described as an example of “vehicle seat”. However, the present invention is not limited to this, and the “vehicle seat” may be various vehicle seats such as “ship seat”, “plane seat”, “railway seat”, and the like. Absent.

  Moreover, in the Example, the roller body 50 demonstrated the form assembled | attached to the bracket 40. As shown in FIG. However, the present invention is not limited to this, and the roller body 50 may be assembled to the upper rail 30 or a cushion frame (not shown).

  Moreover, in the Example, the roller body 50 demonstrated the form assembled | attached to the bracket 40. As shown in FIG. However, the present invention is not limited to this, and the roller body 50 is attached to the bracket 40 via an elastic member (not shown) such as a spring so that an elastic force acts on the fin 22 from the roller 54. It may be assembled. In that case, the fin 22 held in the warped state can be strongly returned.

  Further, in the embodiment, the form in which the roller 54 is used as it is has been described. However, the present invention is not limited to this, and the roller 54 may be used after being heated. In that case, the roller 54 may be heated from the outside, or the roller 54 may be heated from the inside. Then, since fin 22 is comprised from the synthetic resin which has softness, the return of fin 22 hold | maintained in the curvature state can be performed more strongly.

1 Second seat (vehicle seat)
4 Slide mechanism 10 Lower rail 12 Opening 22 Fin 30 Upper rail 52 Support bracket 54 Roller (pressing member)
F floor

Claims (3)

A lower rail disposed on the floor and having an opening;
It has a slide mechanism that is assembled to a vehicle seat and includes an upper rail that can slide with respect to the lower rail through an opening.
On both edges of the opening of the lower rail, fins are assembled along the longitudinal direction so as to close the opening,
The fin is a vehicle seat that is set wide to reliably prevent foreign matter from entering the lower rail through the opening,
A vehicle seat provided with a slide mechanism, characterized in that a pressing member is provided on the upper rail side to press a fin held in a warped state by interference with the upper rail so as to return it to a state before the warp. A vehicle seat provided with the slide mechanism according to claim 1,
A vehicle seat provided with a slide mechanism, wherein the pressing member is composed of a roller rotatable along the longitudinal direction of the lower rail. A vehicle seat provided with the slide mechanism according to claim 1,
A vehicle seat provided with a slide mechanism, wherein the pressing member is provided on the upper rail side through a support bracket.

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