JP2009101821A - Slide lever mounting structure of seat cushion for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide lever mounting structure of a seat cushion for a vehicle capable of securing strength rigidity durable against unlocking operation of a slide mechanism, providing favorable outer appearance, easily carrying out assembling work of a slide lever and preventing occurrence of a hindrance in a manufacturing process of the seat cushion. <P>SOLUTION: This slide lever mounting structure of the seat cushion for the vehicle is furnished with the slide mechanism 4 for longitudinal movement of the seat cushion 2, the slide lever 61 to carry out the unlocking operation of the slide mechanism 4 and a supporting frame 62 to support the slide lever free to revolve. The slide mechanism 4 has a pair of right and left slide rails 42, each of the rails is constituted of a fixed rail and a movable rail, the right and left movable rails are connected to each other by a cross member, the cushion panel 21 is fixed on the movable rails and/or the cross-member, opening parts 21a, 22a to store the supporting frame 62 are provided on a front end part of the seat cushion 2, and the supporting frame 62 is fixed on a bracket 45. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mounting structure for a slide lever that performs an unlocking operation of a sliding mechanism for a vehicle seat cushion.

  Conventionally, a vehicular seat cushion is provided with a slide mechanism for adjusting a seating position in the front-rear direction. The slide mechanism includes a lock mechanism for locking the seat cushion at an arbitrary slide position, and the lock mechanism. A slide lever is attached to release the seat cushion so that it can slide.

  In general, the slide lever is disposed at a position where it is difficult to see below the seat cushion. However, in Patent Document 1, a slide operation knob and a tip-up operation knob may be arranged in parallel on the operation portion on the front end surface of the seat cushion. It is disclosed.

JP 2005-59771 A

  The operation part that performs the unlocking operation of the slide mechanism as described above must be strong and rigid enough to withstand the operating force of the knob and lever, but the cushion pad is placed on the cushion panel formed by press-molding a thin steel plate. However, in the case of a seat cushion whose surface is covered with a cushion trim (skin material), there is a concern about insufficient rigidity of the cushion panel in which the operation portion is disposed.

  However, there is a problem that it is difficult to attach a reinforcing structure to the periphery of the cushion panel because the end of the cushion trim covering the cushion pad is fastened. When a reinforcing structure is provided for a cushion panel having a different manufacturing process, the shape and structure of the cushion panel are complicated, and there is a possibility that the manufacturing process of the seat cushion such as trim terminal processing may be hindered.

  The present invention has been made in view of such a situation, and an object thereof is to obtain a good appearance around the operation unit while ensuring strength and rigidity that can withstand the unlocking operation of the slide mechanism, and to slide the slide mechanism. It is an object of the present invention to provide a slide lever mounting structure for a vehicle seat cushion which can easily perform the assembly work of the lever and does not interfere with the manufacturing process of the seat cushion.

In order to solve the above-described problems of the prior art, the present invention provides:
A cushion pad is disposed on the cushion panel, and a seat cushion (2) whose surface side is covered with a cushion trim; a slide mechanism (4) for moving the seat cushion back and forth; In a slide lever mounting structure for a vehicle seat cushion, comprising: a slide lever (61) for performing an unlocking operation; and a support frame (62) that rotatably supports the slide lever.
The slide mechanism includes a pair of left and right slide rails (42) extending along both side portions of the seat cushion, and each of the slide mechanisms includes a fixed rail and a movable rail supported so as to be slidable with respect to the fixed rail. The left and right movable rails are connected by a cross member (43) installed between them, and the cushion panel (21) is fixed to the movable rail and / or the cross member,
Openings (21b, 22b) for accommodating the support frame are provided at the front end of the seat cushion, and the support frame is fixed to a bracket (45) extending from the cross member to the back of the opening. It is characterized by.

Since the slide lever mounting structure for a vehicle seat cushion according to the present invention is configured as described above, the following effects can be obtained.
It is possible to obtain the mounting rigidity and fixing strength of the slide lever that can withstand the unlocking operation of the sliding mechanism without separately reinforcing the cushion panel, and the bracket and cross member are separate from the seat cushion manufacturing process. Since it is installed, the cushion trim terminal processing can be easily performed without causing any trouble in the manufacturing process of the seat cushion.
The slide lever can be assembled simply by inserting the slide lever support frame (lever assembly) into the opening at the front end of the seat cushion and fixing it to the bracket with a fastening member such as a screw from below the seat cushion. Work can be done easily and a good appearance can be obtained around the slide lever.

  In the present invention, in the aspect in which the flange portion (62d) that covers the edge portion of the opening portion is provided at the peripheral edge portion of the support frame, the seat cushion front end portion (cushion panel and cushion) in which the opening portion is disposed Since the pad) is pressed and stabilized by the flange, the opening of the cushion panel can be simply punched (or notched), and the edge is covered with the flange so that Appearance is further improved.

  In the present invention, in the aspect in which the cushion panel is fixed to the movable rail via the cross member, the positional accuracy of the support frame (lever assembly) of the slide lever with respect to the seat cushion can be increased. It is advantageous for obtaining a good appearance in the periphery.

  In this invention, the said support frame has a fitting part (65) fitted to the front-end | tip part of the said bracket, and fastens the fastening member (66) penetrated to the hole of this fitting part to the front-end | tip part of the said bracket Thus, when the slide lever support frame (lever assembly) is inserted into the opening at the front end portion of the seat cushion, the support frame is temporarily inserted by fitting the fitting portion with the bracket tip. The fastening operation by the fastening member such as a screw is further facilitated, and the mounting rigidity of the slide lever support frame is further improved by the fitting.

  In the present invention, the opening is a notch (21b, 22b) opened below a front end portion of the seat cushion, the support frame is opened downward, and an occupant moves the front end of the seat cushion. In an aspect in which the slide lever can be operated by placing a finger on the back side of the slide lever from below the part, the manufacture of the cushion panel and the formation of the cushion pad are facilitated, and the terminal treatment of the cushion trim can be easily performed, Further, a large operating force can be obtained with respect to the installation area in a narrow range of the front end portion of the seat cushion.

  In the above aspect, the support frame has a bottom surface (62f) that connects a lower end edge on both sides of the notch portion of the flange portion and a side surface of the support frame extending to the back surface side, and the cushion trim is formed by the bottom surface. In the aspect in which the corners of the belt are covered from the lower side, it becomes possible to prevent the occupant from touching the end portions of the cut-out portions of the belt-like locking device disposed along the lower end of the cushion trim. There are advantages that the end processing becomes easy and the strength of the lower edge of the flange portion is improved.

  In the present invention, the inner end of the Bowden cable (51) for performing the unlocking operation of the slide mechanism is connected to the slide lever, and the outer tube end of the Bowden cable is attached to the support frame. In the embodiment in which the bracket is provided with a through hole (45d) through which the Bowden cable is inserted, the bracket is advantageous in that a protective effect near the fixed portion of the cable is obtained.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a vehicle seat 1 in which a slide lever mounting structure according to the present invention is implemented. The seat 1 in the illustrated example is a left-right divided storage type rear seat, and only one of them is shown in the drawing. In FIG. 1, a seat 1 is composed of a seat cushion 2 and a seat back 3 connected to a rear portion thereof via hinge mechanisms 31 and 32 so as to be able to fall down, and a headrest 33 is attached to an upper end portion of the seat back 3. It has been. In addition, a reclining mechanism is attached to one hinge mechanism 31 of the seat back 3 so that the angle of the seat back 3 can be adjusted.

  A slide mechanism 4 for adjusting the position of the seat cushion 2 in the front-rear direction is provided below the seat cushion 2. The slide mechanism 4 includes a lock mechanism 5 (FIG. 2) for locking the seat cushion 2 at an arbitrary slide position, and a slide lever 61 for releasing the lock mechanism 5 and allowing the seat cushion 2 to slide. I have. The slide lever 61 is assembled to the support frame 62 in advance to constitute a lever assembly 6 (lock release operation portion). The lever assembly 6 is attached to the front end portion (gusset portion) of the seat cushion 2 at the seat. It arrange | positions so that a part of front side end surface of the cushion 2 may be comprised.

  FIG. 2 is a perspective view showing an exploded state of the seat cushion 2. In FIG. 2, the seat cushion 2 is configured by overlapping a cushion pad 22 on a cushion panel 21 and covering the surface with a cushion trim 23 (skin material).

  The cushion panel 21 is formed into a vessel shape by press-molding a steel plate, and fixing members 21a (stud bolts) are provided at two locations on both sides and the rear near the front end, A locking portion 21c for locking the edge of the cushion trim 23 is provided along the lower edge. A cutout portion 21 b that can accommodate the support frame 62 of the lever assembly 6 is provided on one side of the front surface of the cushion panel 21.

  The cushion pad 22 is foamed and molded into a shape that can be accommodated in the cushion panel 21 using a foam material such as urethane, and a cutout portion 22b corresponding to the cutout portion 21b of the cushion panel 21 is formed on one side of the front surface thereof. Is formed. The cushion trim 23 is formed into a bag shape by sewing a skin material, and a belt-like locking tool 23a made of a resin material or the like is preliminarily attached to the peripheral portion thereof by means such as sewing, A cylindrical sewing portion 23b is provided on one side corresponding to the cutout portions 21b and 22b of the cushion panel 21 and the cushion pad 22, and an end portion of the cylindrical sewing portion 23b and a surplus portion on the rear side of the side surface. A hook-and-loop fastener 23c is sewn to the end of the hook as a locking member.

  Then, the periphery of the cushion trim 23 covered from the top of the cushion pad 22 is folded back to the back side of the cushion panel 21, and the locking member 23 a of the cushion trim 23 is locked to the locking portion 21 c of the cushion pad 22. With the pad 22 and the lower end of the cushion panel 21 covered, the lower end of the cushion trim 23 is fixed to the back side of the cushion panel 21. In addition, the cylindrical sewing portion 23b not provided with the locking tool 23a and the surplus portion on the rear side of the side surface are provided with a surface fastener 23c on the back surface of the cushion panel 21 in a state where they are folded back to the back side of the cushion panel 21. It is locked and fixed to a hook-and-loop fastener (not shown).

  The seat cushion 2 configured as described above is a fastening member (not shown) in a state where the fixing members 21a (stud bolts) of the cushion panel 21 are inserted into the mounting holes 43a and 44a on both sides near the front end and the rear portion of the slide mechanism 4. It is fastened and fixed with (nut).

  As shown in FIG. 2, the slide mechanism 4 includes a pair of left and right slide rails 42, 42 provided on both sides of a base frame 41 extending in the width direction at the lower front portion of the seat 1. As shown in FIG. 3, which is an enlarged view of part A of FIG. 2, each slide rail 42, 42 is fixed to the upper surface of the base frame 41, and is slidably supported on the fixed rail 42b. The movable rail 42a is configured.

  The left and right movable rails 42a, 42a of the slide rails 42, 42 are connected by two cross members 43, 44 installed between the front end portions and the rear end portions thereof to constitute a rectangular movable frame, These can slide integrally in the front-rear direction. Locking mechanisms 5 and 5 are attached to the middle portions of the movable rails 42a and 42a in the front-rear direction. These locking mechanisms 5 and 5 are connected to the lever assembly 6 via slide cables 51 and 51 (Bowden cable). The slide lever 61 and the support frame 62 are connected.

  A bracket 45 for attaching the lever assembly 6 is provided on one end side of the front cross member 43 of the two cross members 43 and 44. The bracket 45 is disposed so as to face the notch portions (21b, 22b) of the seat cushion 2 from behind in a state in which the seat cushion 2 is attached to the slide mechanism 4. The bracket 45 will be described later.

  Further, the front mounting holes 43a described above are provided at both ends of the front cross member 43, and the rear mounting holes 44a are provided in the rear cross member 44. Note that brackets of the left and right hinge mechanisms 31 and 32 are welded to both ends of the rear cross member 44 in advance, and these brackets (31 and 32) also serve as fixing portions of the cross member 44. .

  On the other hand, the upper end portion of the leg 7 is rotatably connected to the lower surface of the central portion of the base frame 41 via a pair of left and right hinge brackets 41b and 41b. The lower end portion of the leg 7 is rotatably connected to a hinge bracket 8 fixed to a vehicle body floor (not shown). By tilting the leg 7 forward, the folded seat 1 is moved to the slide mechanism 4. And can be stored on the vehicle body floor. Further, lock mechanisms 46 and 46 for fixing the slide mechanism 4 to an upper portion (not shown) of the vehicle body floor in the seated state of the seat 1 are attached to the lower surfaces of the left and right fixed rails 42b and 42b. Has been.

  Next, as shown in FIGS. 3, 4, and 6, the bracket 45 includes a base portion 45 b that forms a flat joint surface, and an intermediate portion 45 c that extends obliquely forward and downward from the front end portion of the base portion 45 b. And a tip portion 45a that extends substantially horizontally forward from the lower end of the intermediate portion 45c, and is formed into a substantially crank shape as a whole by press molding the channel material. The bracket 45 is joined to the cross member 43 by welding and fixing the flat upper surface of the base 45 b to the lower surface of the cross member 43, and extends forward from the cross member 43.

  A tip 45a of the bracket 45 is an attachment portion that fits with the fitting portion 65 of the lever assembly 6 (support frame 62), and a screw-fastening hole 45e is formed in a flat bottom portion at the center. Reinforcing beads 45f are formed along both side portions, whereby the contact surface with the fitting portion 65 of the support frame 62 is increased, and a three-dimensional fitting can be obtained.

  Further, a through hole 45 d through which the slide cable 51 can be inserted is formed in the inclined intermediate portion 45 c of the bracket 45. As shown in FIGS. 3 and 6, by inserting the slide cable 51 through the through hole 45d, the connecting portion (62b) disposed near the supported position (fitting portion 65) of the support frame 62 is provided. There are advantages that the slide cable 51 can be retracted without difficulty and the connecting portion (62b) is protected by the bracket 45.

  Next, the slide lever 61 constituting the lever assembly 6, the structure of the support frame 62, and the mounting structure will be described in detail with reference to FIGS.

  As shown in FIG. 5, the slide lever 61 has a base portion in which a hole 61 a through which the shaft 63 is inserted penetrates in the width direction, an operation portion (61) extending downward from the base portion, and a rear surface side of the base portion. The cable connecting portion 61b and the rotation restricting portion 61c are configured such that the base portion (hole 61a) is rotatably supported by a shaft 63 inserted into the bearing hole 62a of the support frame 62, and the slide lever 61 is rotated forward. By moving the inner cable end portion 51a of the slide cable 51 connected to the cable connecting portion 61b, it can be pulled.

  A return spring 64 is attached to the shaft 63. One arm of the return spring 64 is locked to the slide lever 61, and the other arm is locked to the support frame 62. Due to the urging of the return spring 64, the slide lever 61 is not illustrated in the non-operating state. 6, the rotation restricting portion 61c is held at a position where it abuts against the upper wall portion of the support frame 62, and the outer surface (62d) of the slide lever 61 and the support frame 62 has a common design surface. Forming.

  As shown in FIGS. 5 and 6, the support frame 62 has a recess 60 that accommodates the slide lever 61 in the center, is formed in a box shape with the front and lower sides open, and the back surface of the slide lever 61 from below. The slide lever 61 can be operated by placing a finger on the side. A flange portion 62d projecting upward and laterally is formed on the front peripheral edge portion excluding the lower portion of the support frame 62, and a design surface having an inverted U shape in front view is formed around the concave portion 60. .

  On the other hand, the rear part of the support frame 62 is opened upward so that the work of connecting the inner end part 51a of the slide cable 51 to the cable connection part 61b of the slide lever 61 can be performed, and the support frame located behind the cable connection part 61b. The outer cable end portion 51 b of the slide cable 51 can be held by the cable holding portion 62 b at the upper end portion of the rear wall 62.

  At the center of the rear wall of the support frame 62, a fitting portion 65 that fits into the tip 45a of the bracket 45 is provided. As shown in FIGS. 6 and 7, the fitting portion 65 has a rectangular tube shape penetrating the rear wall of the support frame 62 in the front-rear direction, and the inner wall surface of the fitting bead 45f of the bracket tip portion 45a. Ribs 65a and 65c that abut on the upper surface and side surfaces and a rib 65b that abuts on the bottom surface of the center bottom of the bracket tip 45a project so as to be able to be fitted to the bracket 45 with increased surface pressure.

  Further, the upper edge portion (65d) of the fitting portion 65 protrudes rearward from the rear wall surface of the support frame 62 and abuts against the inclined intermediate portion 45c of the bracket 45 in the fitted state, and at the center of the upper edge portion. The protrusion 65d projectingly is locked to the lower edge of the through hole 45d, so that stability against a load in the rotational direction accompanying the operation of pulling the slide lever 61 is ensured.

  When the lever assembly 6 configured as described above is assembled to the seat cushion 2, the lever assembly 6 is inserted into the cutout portions (21b, 22b) of the seat cushion 2 assembled to the slide mechanism 4 from the front. As shown in the figure, an attachment drilled in the bottom of the fitting portion 65 in a state where the fitting portion 65 is press-fitted (temporarily fixed) to the tip portion 45a of the bracket 45 located inside the notches (21b, 22b). The tapping screw 66 (fastening member) inserted through the hole 62e from below is fastened to the hole 45e of the bracket tip 45a to complete the process.

  At this time, in the notches (21b, 22b) of the seat cushion 2, the cushion pad 22 covered with the cushion trim 23 is pressed against the cushion panel 21 and compressed by the flange portion 62d of the support frame 62 located outside the seat cushion 2. Therefore, even if a separate locking structure is not provided between the support frame 62 and the seat cushion notch (21b, 22b), the gap can be stably disposed. .

  Further, as described above, a belt-like locking tool 23a that locks the cushion trim 23 is disposed along the lower edge of the seat cushion 2, and the locking tool 23a has a notch (21b, 22b), and the cut ends are located on both sides of the notch. Therefore, as shown in FIG. 7, by providing a bottom surface 62f that connects the lower end edge of the flange portion 62d and the side surface 62c of the support frame 62 extending to the back surface side thereof, the cut end of the locking tool 23a is formed by the bottom surface 62f. The corner portion of the cushion trim 23 including the portion is covered from the lower side, and the occupant's hand is prevented from touching the cut end portion. As a result, the end portion of the locking tool 23a is not required, and the dimensional variation between the end position of the cushion trim 23 and the support frame 62 divided into the left and right is absorbed, and a good appearance is obtained at this portion. Furthermore, the bottom face 62f becomes a reinforcing structure of the lower end edge of the flange part 62d, and there is an advantage that the strength of this part is improved.

  In the assembly structure of the lever assembly 6 as described above, the support frame 62 is fixed to the bracket 45 extended from the cross member 43 of the slide mechanism 4 with a fitting structure. It is possible to obtain high mounting rigidity and fixing strength of the slide lever 61 that can withstand the unlocking operation of the slide mechanism 4 without reinforcing the slide mechanism 4, and the bracket 45 and the cross member 43 can be used for manufacturing the seat cushion 2. Since it is installed separately from the process, it does not interfere with the manufacturing process of the seat cushion 2, and the end treatment of the cushion trim 23 in the cushion panel 21 without the reinforcing structure can be easily performed.

  Also, the cross member 43 integral with the bracket 45 is provided with an attachment hole 43a for fixing the cushion panel 21, that is, the bracket 45 and the cushion panel 21 are both attached to the cross member 43. The influence of the dimensional error of the mechanism 4 can be eliminated, the positional accuracy of the bracket 45 with respect to the cushion panel 21 can be increased, and the lever assembly 6 (support frame 62) can be assembled to the seat cushion 2 with high positional accuracy. It becomes.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

  For example, in the above-described embodiment, an opening having a lower opening, that is, a notch (21b, 22b) is provided at the front end of the seat cushion 2, and the support frame 62 in which the lower portion of the recess 60 is opened in the notch. Although the case where the (lever assembly 6) is mounted is shown, an opening with a lower part is provided at the front end of the seat cushion 2, and a box-like or cylindrical support with a lower part of the recess 60 is closed at the opening. It can also be configured to be fitted with a frame (62).

  In the above embodiment, the slide lever 61 is supported so as to be rotatable about the shaft 63 extending in the width direction. However, the slide lever is supported to be rotatable about the axis extending in the vertical direction. Alternatively, it may be supported so as to be rotatable around an axis extending in the front-rear direction, and may be configured to be rotated inside the support frame.

It is a perspective view which shows the seat for vehicles which implemented the slide lever attachment structure concerning this invention. It is a perspective view which shows the decomposition | disassembly state of the seat cushion which implemented the slide lever attachment structure concerning this invention. It is the A section expansion perspective view of FIG. It is a perspective view which shows the disassembled state of the slide lever of this invention embodiment, and its attachment bracket. It is a perspective view which shows the disassembled state of the slide lever of this invention embodiment, and its support frame. FIG. 8 is a side sectional view showing a slide lever mounting structure according to the present invention, which is a sectional view taken along the line BB in FIG. 7. It is CC sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat 2 Seat cushion 3 Seat back 4 Slide mechanism 5 Lock mechanism 6 Lever assembly 21 Cushion frame 21a Fixing member (stud bolt)
21b, 22b Notch (opening)
22 Cushion pad 23 Cushion trim (skin material)
23a Locking tool 23b Cylindrical sewing part 41 Base frame 41a Mounting hole 42 Slide rail 42a Movable rail 42b Fixed rail 43, 44 Cross member 45 Bracket 51 Slide cable 61 Slide lever 61b Cable connecting part 62 Support frame 62b Cable holding part 62d Flange Part 62f bottom face 63 shaft 65 fitting part 66 tapping screw (fastening member)

Claims (7)

To provide a seat cushion having a cushion pad disposed on the cushion panel and whose front side is covered with a cushion trim, a slide mechanism for moving the seat cushion back and forth, and an operation for unlocking the slide mechanism In a slide lever mounting structure for a vehicle seat cushion comprising: a slide lever; and a support frame that rotatably supports the slide lever.
The slide mechanism has a pair of left and right slide rails extending along both side portions of the seat cushion, each of which includes a fixed rail and a movable rail supported so as to be slidable with respect to the fixed rail. The movable rails are connected by a cross member erected between them, and the cushion panel is fixed to the movable rail and / or the cross member,
An opening for accommodating the support frame is provided at a front end portion of the seat cushion, and the support frame is fixed to a bracket extending from the cross member behind the opening. Slide cushion mounting structure for seat cushion.   The slide lever mounting structure for a vehicle seat cushion according to claim 1, wherein a flange portion that covers an edge portion of the opening is provided at a peripheral portion of the support frame.   The slide lever mounting structure for a vehicle seat cushion according to claim 1, wherein the cushion panel is fixed to the movable rail via the cross member.   The support frame has a fitting portion that fits into a tip portion of the bracket, and is fastened and fixed to a tip portion of the bracket by a fastening member inserted through a hole of the fitting portion. The slide lever mounting structure for a vehicle seat cushion according to claim 1.   The opening is a notch that is opened below the front end of the seat cushion, the support frame is opened downward, and the occupant can see the back of the slide lever from below the front end of the seat cushion. The slide lever mounting structure for a vehicle seat cushion according to claim 2, wherein the slide lever can be operated by placing a finger on the side.   The support frame has a bottom surface that connects a lower end edge on both sides of the notch portion of the flange portion and a side surface of the support frame that extends to the back surface side, and the corner portion of the cushion trim is below the bottom surface by the bottom surface. The slide lever mounting structure for a vehicle seat cushion according to claim 5, wherein the slide lever mounting structure is covered.   An inboard end portion of a Bowden cable that performs unlocking operation of the slide mechanism is connected to the slide lever, an outer tube end portion of the Bowden cable is attached to the support frame, and the Bowden cable is attached to the bracket. 2. The slide lever mounting structure for a vehicle seat cushion according to claim 1, further comprising a through hole through which the cable is inserted.

Images