JP2007230332A - Structure for fitting tip-up storage seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide structure for fitting a tip-up storage seat capable of facilitating work for fitting a seat bracket to a movable rail of slide rails. <P>SOLUTION: A lever 11 can be temporarily held in relation to a seat bracket 8 in a state that a seat cushion 2 is horizontally used in relation to the seat bracket 8 by a fastening means constituted of a first extension part 17, a second extension part 18 and a stopper bolt 22. By this structure, in a state that an energizing force of a spring 16 is sealed, and the seat bracket 8 is fixed to the seat cushion 2 for integration. Consequently, the work for fitting the seat bracket 8 with the seat cushion 2 to the movable rail 6 of the slide rails 4 is facilitated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for mounting a flip-up storage sheet.

  In order to enlarge the cargo compartment behind the seat, the seat of the automobile (second seat or third seat) is brought to a horizontal state by tilting the seat back back and forth, and the entire seat is centered on the outer end in the vehicle width direction of the seat cushion. There is a flip-up type storage structure that rotates and stores to cause.

  In such a flip-up type storage seat, a lever is fixed to the outer end of the seat cushion in the vehicle width direction, and a seat bracket is rotatably supported by the lever via a pivot shaft. Between the lever and the seat bracket, a spring is provided to turn and bias the seat cushion from the horizontal use state to the stowed state, and the seat bracket in a state supported by the seat cushion is provided. It is attached to the movable rail part of the slide rail fixed to the vehicle body.

When the seat is used, the seat cushion is tilted inward in the vehicle width direction to be used horizontally, and the support leg provided at the inner end in the vehicle width direction of the seat cushion is engaged with the slide rail on the inner side in the vehicle width direction. Let the seat cushion remain horizontal. The seat cushion can be moved to any front and rear position by slide rails on both sides in the vehicle width direction. At the time of storage, the engagement between the support leg and the slide rail is released, and the seat cushion is stored by jumping upward about the pivot shaft (see, for example, Patent Document 1).
JP 2001-322465 A

  However, in such a conventional technique, the seat bracket that is rotatably supported via the pivot shaft on the lever at the outer end in the vehicle width direction of the seat cushion is in a state in which the urging force by the spring is applied. Because the seat cushion is unstable with respect to the seat bracket because it is attached to the movable rail portion of the slide rail, and the seat bracket and the seat bracket are both supported, the seat bracket is attached to the movable rail portion of the slide rail. Work is very difficult.

  The present invention has been made paying attention to such a conventional technique, and provides a structure for mounting a flip-up type storage sheet that can easily perform the operation of mounting a seat bracket to a movable rail portion of a slide rail. Is.

  In the invention according to claim 1, the lever fixed to the outer end of the seat cushion in the vehicle width direction supports the seat bracket through the pivot shaft, and between the lever and the seat bracket, Provided with urging means that urges the seat cushion to move upward from the horizontal use state to the stowed state, and the seat bracket supported by the seat cushion moves the slide rail fixed to the vehicle body. A structure for mounting a flip-up type storage seat to be mounted on a rail portion, wherein the lever is attached to the seat bracket between the lever and the seat bracket so that the seat cushion is in a horizontal use state with respect to the seat bracket. A fastening means for temporary holding is provided.

  According to a second aspect of the present invention, the fastening means includes a first extension formed at a position different from the pivot shaft of the lever, a second extension corresponding to the first extension formed on the seat bracket, It is comprised from the stopper bolt which penetrates and fastens 1 extension part and 2nd extension part, It is characterized by the above-mentioned.

  According to a third aspect of the present invention, the first extension and the second extension correspond to each other at a predetermined interval via a spacer, the first extension is provided with a mounting hole with a weld nut, and the second extension Forms a fastening hole having a diameter larger than that of the mounting hole, and the stopper bolt has a screw portion that is screwed into the welding nut, a head portion that is larger in diameter than the fastening hole, and a diameter between the screw portion and the head portion. It is formed from the taper part which spreads gradually to a fastening hole.

  According to the first aspect of the present invention, the lever can be temporarily held with respect to the seat bracket by the fastening means so that the seat cushion is in a horizontal use state with respect to the seat bracket. In a state where the urging force is sealed, the seat bracket is fixed to the seat cushion, and both are like one part. Therefore, it becomes easy to attach the seat bracket to the movable rail portion of the slide rail together with the seat cushion.

  According to the second aspect of the present invention, the first extension formed on the lever and the second extension formed on the seat bracket are fastened by the stopper bolt, so that secure fastening is possible without requiring space. It can be performed.

  According to the third aspect of the present invention, when the screw portion at the tip of the stopper bolt inserted from the fastening hole is screwed into the welding nut of the mounting hole and the screwing is advanced as it is, the mounting hole is fastened by the guide action of the taper portion. The stopper bolt is fastened in a state where it is positioned at the center of the hole, and the seat cushion is in a relationship of a completely horizontal use state with respect to the seat bracket.

  An object of the present invention is to provide a flip-up type storage seat mounting structure that can easily perform a work of mounting a seat bracket to a movable rail portion of a slide rail. The seat bracket is pivotably supported by the lever via a pivot shaft, and the seat cushion is pivoted upward from the horizontal use state to the stowed state between the lever and the seat bracket. A structure for mounting a flip-up type storage seat, provided with a biasing means for biasing, and mounting a seat bracket supported by a seat cushion to a movable rail portion of a slide rail fixed to a vehicle body, the lever and the seat The lever should be seated between the bracket and the seat cushion so that the seat cushion is level with the seat bracket. By providing a fastening means for temporarily held against the bracket, it was realized. Embodiments of the present invention will be described below with reference to the drawings.

  1-5 is a figure which shows one Example of this invention. Reference numeral 1 denotes a rear seat (left seat) of a one-box vehicle, which includes a seat cushion 2 and a seat back 3. The seat cushion 2 and the seat back 3 show only the internal skeleton frame in order to show the support structure.

  The seat back 3 can be largely reclined to the rear side. When the seat back 3 is tilted to the maximum, the seat back 3 becomes substantially horizontal as with the seat cushion 2.

  The floor below the rear seat 1 is higher on the outer side in the vehicle width direction, the slide rail 4 on the outer side in the vehicle width direction is provided on the higher part of the floor, and the slide rail 5 on the inner side in the vehicle width direction is provided on the lower part. Yes. The slide rail 4 on the outer side in the vehicle width direction has a movable rail portion 6 that can slide back and forth. An upward welding bolt 7 is fixed to the upper portion of the movable rail portion 6.

  A seat bracket 8 is placed on top of the movable rail portion 6, and the welding bolt 7 is fixed by a nut 10 in a state of passing through a fixing hole 9 (see FIG. 2) of the seat bracket 8. Accordingly, the seat bracket 8 is integrated with the movable rail portion 6. A method of attaching the seat bracket 8 and the movable rail portion 6 will be described later.

  A pair of front and rear levers 11 and 12 fixed to the outer end of the seat cushion 2 in the vehicle width direction are supported on the seat bracket 8 so as to be rotatable about a pivot shaft 13. As shown in FIGS. 4 and 5, the rear end of the pivot shaft 13 penetrates the lever 11 and the side surface of the seat bracket 8 with a spacer 14 interposed therebetween, and is fastened by a nut 15.

  A spring (biasing means) 16 having one end engaged with the seat bracket 8 and the other end engaged with the rear lever 11 is provided around the pivot shaft 13. The spring 16 urges the lever 11 in the direction of lifting, and always applies a urging force in the direction of lifting the seat cushion 2 around the pivot shaft 13.

  On the other hand, a first extension portion 17 is formed at the upper portion of the rear lever 11, and a second extension portion 18 is formed at the corresponding portion of the seat bracket 8. An attachment hole 20 with a welding nut 19 is formed in the first extension portion 17, and a fastening hole 21 having a diameter larger than that of the attachment hole 20 is formed in the second extension portion 18.

  If the seat cushion 2 is roughly placed in a horizontal use state with respect to the seat bracket 8 by a jig (not shown), the mounting hole 20 and the fastening hole 21 are substantially matched. In the substantially matched state, the stopper bolt 22 is inserted from the fastening hole 21 side. In this embodiment, the first extending portion 17, the second extending portion 18, and the stopper bolt 22 constitute fastening means.

  The stopper bolt 22 has a screw portion 23 screwed into the welding nut 19 at the tip, and between the screw portion 23 and the head 24 having a larger diameter than the fastening hole 21, from the screw portion 23 to the diameter of the fastening hole 21. It has a taper portion 25 that expands.

  Therefore, if the mounting hole 20 is positioned in the large-diameter fastening hole 21 anyway, the screw portion 23 at the tip of the stopper bolt 22 inserted from the fastening hole 21 is then screwed into the welding nut 19 of the mounting hole 20. By proceeding the screwing as it is, the mounting hole 20 can be positioned at the center of the fastening hole 21 by the guide action of the taper portion 25, and the seat cushion 2 is secured to the seat bracket 8 in a state where the stopper bolt 22 is completely fastened. In contrast, the use state is completely horizontal.

  Thus, the seat cushion 2 and the seat bracket 8 are held in a horizontal state by fastening the first extension portion 21 of the lever 11 to the second extension portion 22 of the seat bracket 8 by the stopper bolt 22. Therefore, the urging force of the spring 16 is sealed.

  Then, the actual work of attaching the seat cushion 2 and the seat bracket 8 to the movable rail portion 6 of the slide rail 4 is as follows. First, as shown in FIG. The part 17 and the second extension part 18 are fixed to each other, and in a state where the seat cushion 2 and the seat bracket 8 are integrated, the fixing hole 9 of the seat bracket 8 is passed through the welding bolt 7 of the movable rail part 6 and from above. Fasten with nut 10.

  Since the seat cushion 2 and the seat bracket 8 can be handled as a single part in a state in which the urging force of the spring 16 is sealed, the attaching operation is easy. The stopper bolt 22 is finally removed to release the urging force of the spring 16 and to act between the seat cushion 2 and the seat bracket 8.

  At the inner end in the vehicle width direction of the seat cushion 2, a support leg portion 26 is provided that can be folded from a state where it is erected vertically to the seat cushion 2. The support leg 26 is attached to the seat cushion 2 so as to correspond to the slide rail 5 on the inner side in the vehicle width direction.

  The slide rail 5 on the inner side in the vehicle width direction has a slider 27 that can move back and forth. The lower end of the support leg 26 and the upper surface of the slider 27 can be engaged with each other, and the seat cushion 2 is in a horizontal state with the lower end of the support leg 26 engaged with the upper surface of the slider 27. Can be held against the spring 16 and can be moved and stopped at an arbitrary front-rear position. Then, by disengaging the support leg 26 and the slider 27, the seat cushion 2 is rotated and stored in the flip-up direction around the pivot shaft 13 while using the urging force of the spring 16. be able to.

  According to this embodiment, the lever 11 can be temporarily held with respect to the seat bracket 8 in a relationship in which the seat cushion 2 is in a horizontal use state with respect to the seat bracket 8 by the fastening means described above. With the urging force of 16 sealed, the seat bracket 8 is fixed to the seat cushion 2, and both are like one part. Therefore, the work of attaching the seat bracket 8 together with the seat cushion 2 to the movable rail portion 6 of the slide rail 4 is facilitated.

  Further, since the first extension portion 17 formed on the lever 11 and the second extension portion 18 formed on the seat bracket 8 are fastened by the stopper bolts 22, it is possible to perform secure fastening without requiring a space. Can do.

  Further, when the screw portion 23 at the tip of the stopper bolt 22 inserted from the fastening hole 21 is screwed into the welding nut 19 of the mounting hole 20 and the screwing is advanced as it is, the mounting hole 20 is fastened by the guide action of the taper portion 25. The stopper bolt 22 is fastened while being positioned at the center of the seat 21, and the seat cushion 2 is in a completely horizontal relationship with the seat bracket 8.

  In the above embodiment, the example in which the fastening means is configured by the first extension portion 17, the second extension portion 18, and the stopper bolt 22 is shown, but the present invention is not limited to this. Any structure may be used as long as the lever 11 can be temporarily held with respect to the seat bracket 8 so that the seat cushion 2 is in a horizontal use state with respect to the seat bracket 8.

The perspective view which shows the frame | skeleton frame of the flip-up-type storage sheet which concerns on one Embodiment of this invention. The disassembled perspective view which shows the attachment structure of the slide rail and seat bracket of FIG. The expansion perspective view which shows the fastening means of FIG.1 and FIG.2. Sectional drawing which follows the SA-SA line shown by the arrow in FIG. Sectional drawing equivalent to FIG. 4 which shows the state which removed the stopper bolt.

Explanation of symbols

4 Slide rail 6 Movable rail portion 8 Seat bracket 11 Lever 13 Pivot shaft 14 Spacer 16 Spring (biasing means)
17 First extension (fastening means)
18 Second extension (fastening means)
19 Welding nut 20 Mounting hole 21 Fastening hole 22 Stopper bolt (fastening means)
23 Screw part 24 Head part 25 Taper part

Claims (3)

The lever is fixed to the outer end of the seat cushion in the vehicle width direction and pivotally supports the seat bracket via a pivot shaft.
Between the lever and the seat bracket, there is provided a biasing means for biasing the seat cushion from the horizontal use state to the storage state where the seat cushion is flipped upward,
A flip-up type storage seat mounting structure for mounting a seat bracket supported by a seat cushion to a movable rail portion of a slide rail fixed to a vehicle body,
A flip-up type characterized in that a fastening means for temporarily holding the lever with respect to the seat bracket is provided between the lever and the seat bracket so that the seat cushion is in a horizontal use state with respect to the seat bracket. Storage sheet mounting structure. A structure for mounting the flip-up storage sheet according to claim 1,
The fastening means has a first extension formed at a position different from the pivot shaft of the lever, a second extension corresponding to the first extension formed on the seat bracket, a first extension, and a second extension. A structure for attaching a flip-up type storage sheet, comprising a stopper bolt that penetrates through and fastens. The flip-up storage sheet mounting structure according to claim 2,
The first extension and the second extension correspond to each other at a predetermined interval via a spacer, the first extension has a mounting hole with a weld nut, and the second extension has a larger diameter than the mounting hole. Forming fastening holes,
The stopper bolt is formed of a screw portion screwed into the welding nut, a head portion having a diameter larger than that of the fastening hole, and a tapered portion in which the diameter gradually increases to the fastening hole between the screw portion and the head portion. A structure for mounting a flip-up type storage sheet characterized by the above.

Images