JP2015093525A - Slide lock device for vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide lock device for a vehicle seat configured that a release bar can be accurately operated without making a hand dirty though the release lever is arranged below a seat cushion to be hidden from the seat cushion.SOLUTION: A slide lock device for a vehicle seat comprises a slide lock mechanism 28 which is arranged between a fixed rail 27 and a movable rail 25 for selectively locking the movable rail 25 at a plurality of prescribed sliding positions and a release bar 31 which is connected to the slide lock mechanism 28 to be operated to release the locking state of the slide lock mechanism 28 and is arranged in a lower part of a seat cushion 3. In the slide lock device for a vehicle seat, a knob 33 is provided on the release bar 31 in such a manner as to protrude ahead of a front surface of the release bar to face a front surface of the seat cushion 3, and the release bar 31 is stored inside an extending surface material 40 which extends from a surface material 39 of the seat cushion 3 to cover a bottom surface of the seat cushion 3.

Description

  The present invention is disposed between a fixed rail laid on a vehicle floor and extending in the front-rear direction, and a movable rail fixed to a seat cushion frame supporting the seat cushion and slidably engaged with the fixed rail, A slide lock mechanism that can selectively lock the movable rail at a plurality of predetermined sliding positions, and a slide lock mechanism that is coupled to the slide lock mechanism so that the lock state of the slide lock mechanism can be released. The present invention relates to an improvement in a slide lock device for a vehicle seat, which includes a release bar disposed at a lower portion.

  Such a slide lock device for a vehicle seat is known as disclosed in Patent Document 1 below.

JP 2013-180724 A

  In the conventional slide lock device for a vehicle seat, the release bar is arranged below the seat cushion so that it is hidden from the seat cushion. Therefore, when the occupant operates the release bar, the release bar must be searched by hand. , The operability is not good.

  The present invention has been made in view of such circumstances, and the release bar is arranged under the seat cushion so as to be hidden from the seat cushion, but the operability of the release bar is improved. An object of the present invention is to provide a slide lock device for a seat.

  To achieve the above object, the present invention provides a fixed rail laid on a vehicle floor and extending in the front-rear direction, and fixed to a seat cushion frame that supports the seat cushion and slidably engaged with the fixed rail. A slide lock mechanism that is disposed between the movable rails and can selectively lock the movable rails at a plurality of predetermined sliding positions, and the slide lock mechanism so that the lock state of the slide lock mechanism can be released. In a slide lock device for a vehicle seat comprising a release bar connected to the lower portion of the seat cushion, the release bar protrudes from the front surface of the release bar so as to face the front surface of the seat cushion, Provide a knob to be gripped by the occupant seated on the seat cushion, and extend from the skin of the seat cushion. Inside the extension epidermis covering the bottom surface of serial seat cushion, except for the knob, and the first, characterized in that it matches the release bar.

  In addition to the first feature, the present invention provides the slide lock between each of the pair of left and right fixed rails laid on the floor of the vehicle and the pair of left and right movable rails fixed to the seat cushion frame. A mechanism for connecting the both ends of the release bar to the left and right slide lock mechanisms, and a grip portion that is disposed in front of the release bar from a center portion of the release bar; A second feature is that it comprises a pair of left and right support parts that are bent from the left and right ends toward the release bar and extend in parallel with the release bar, and these support parts are welded to the release bar.

  Furthermore, in addition to the first or second feature, the present invention has a third feature in that a notch portion facing the knob is provided at the lower edge portion of the front end of the seat cushion.

  Furthermore, in addition to any of the first to third features, the present invention provides an opening that exposes the knob at a location corresponding to the notch of the extended skin, and an upper edge of the opening. A fourth feature is that the decorative piece extending from the portion is arranged so as to cover the release bar inside the knob and to be connected to the extended skin behind the knob.

  Furthermore, in addition to the fourth feature of the present invention, the seat cushion frame is fixedly provided with a restriction plate located immediately after the notch and a restriction ring disposed inside the knob, The decorative piece is arranged so that it bypasses the restriction ring, and a first hook that is locked to the restriction plate and pulls the intermediate portion of the decorative piece backward is attached to the decorative piece. The fifth feature.

  Furthermore, the present invention is characterized in that, in addition to the fifth feature, a second hook that is locked to the restriction ring is attached to the lower edge portion of the opening.

  According to the first feature of the present invention, the release bar at the lower part of the seat cushion is provided with a knob that protrudes from the front face of the release bar so as to face the front face of the seat cushion and is gripped by an occupant seated on the seat cushion. The knob enters the field of view of the occupant seated on the seat cushion, and the occupant can operate the release bar by immediately grasping the knob without searching for the release bar. Moreover, the release bar is housed inside the extended skin that extends from the seat cushion and covers the bottom surface of the seat cushion, so that the release bar is housed in the lower part of the seat cushion. Can be avoided.

  According to the second feature of the present invention, both ends of the release bar are connected to the left and right slide lock mechanisms, and the knob is disposed in front of the center of the release bar. It consists of a pair of left and right support parts that bend from the left and right ends of the grip part to the release bar side and extend parallel to the release bar, and these support parts are welded to the release bar, so the knob effectively reduces the rigidity of the release bar. Therefore, the operating force to the knob can be accurately and simultaneously transmitted to the left and right slide lock mechanisms via the release bar, and the locked state can be released. In addition, the release bar's rigidity can be reduced, enabling the diameter of the release bar to be reduced and contributing to its weight reduction.

  According to the third feature of the present invention, since the notch facing the knob is provided at the lower edge of the front end of the seat cushion, the knob is as close as possible to the occupant seated on the seat cushion. Operability is improved.

  According to the fourth feature of the present invention, an opening for exposing the knob is provided at a position corresponding to the notch of the extended skin, and the decorative piece extending from the upper edge of the opening is provided with the knob. The release bar on the inner side of the knob is covered so as to be connected to the extended epidermis behind it, so that the cosmetic bar can hide the release bar on the inner side of the knob and keep the aesthetic appearance.

  According to the fifth feature of the present invention, the seat cushion frame is fixedly provided with a restricting plate located immediately after the notch and a restricting ring disposed inside the knob, while the decorative piece is attached to the seat cushion frame. Since this is arranged so as to bypass the regulating ring, and the decorative piece is provided with a first hook which is locked to the regulating plate and pulls the intermediate portion of the decorative piece backward, it is cut by the decorative piece. A wide and clean operation space facing the knob can be defined in the notch, and the operability of the knob can be improved while improving the aesthetic appearance.

  According to the sixth aspect of the present invention, since the second hook locked to the restriction ring is attached to the lower edge portion of the opening portion, it is possible to prevent loosening of the extended epidermis around the opening portion. It can contribute to improvement.

The perspective view of the back seat for vehicles concerning the embodiment of the present invention. The frame system perspective view of the said rear seat. The perspective view seen from the lower part of the seat cushion frame. FIG. 4 is a sectional view taken along line 4-4 of FIG. The principal part perspective view of a slide lock apparatus. The perspective view around the release bar of the slide lock device. The perspective view around a rail cover. FIG. 8 is a view (plan view) taken along arrow 8 in FIG. 7. FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 8. FIG. 10 is a view (bottom view) taken along arrow 10 in FIG. 9. The perspective view around the latching claw of a rail cover. FIG. 12 is an enlarged sectional view taken along line 12-12 of FIG. FIG. 13 is an enlarged sectional view taken along line 13-13 in FIG. 1; 12 is an enlarged cross-sectional view of 12 parts in FIG. FIG. 15 is an enlarged sectional view taken along line 15-15 in FIG. 14; FIG. 16 is a view taken in the direction of arrow 16 in FIG. 2. The perspective view around the buckle for seat belts.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, front and rear and left and right are based on the automobile on which the seat of the present invention is installed.

  1 and 2, a rear seat 1 as an automobile seat includes a seat cushion frame 2, a seat cushion 3 having a pair of left and right seats 3a mounted on the seat cushion frame 2, and a seat. A pair of left and right seat backs 5 are connected to the rear end of the cushion frame 2 via a reclining mechanism 4.

  2 to 4, the seat cushion frame 2 includes a pipe-shaped rear frame 7 extending in the left-right direction, and a pipe-shaped pipe having a smaller diameter than the rear frame 7 disposed in front of the rear frame 7 in parallel therewith. The front frame 8 and a pair of left and right side frames 9 that integrally connect the left and right ends of the rear and front frames 7 and 8 are provided. Pivot brackets 10 are welded to the left and right ends of the rear frame 7. Each pivot bracket 10 has a cross-sectional channel shape (see FIG. 4), which is fitted inside a side frame 9 having a cross-sectional channel shape, and the bottoms of the two are fastened with bolts 11 to the side. The part frame 9 is integrally connected to the rear frame 7. Reinforcing rods 9 a are bent at the upper left and right edges of the side frame 9. Thus, the rear frame 7 is connected to the high-rigidity side frame 9 via the high-rigidity pivot bracket 10, and the connection strength between the rear frame 7 and the side frame 9 is strengthened.

  A box-shaped intermediate strength member 13 is welded to the center of the rear frame 7. This intermediate strength member 13 is composed of a pair of left and right member halves 13a and 13b which are welded with their open ends fitted together. The intermediate strength member 13 is welded to the rear ends of a pair of upper and lower central frames 14 and 15. At that time, the rear end of the upper central frame 14 is welded to the front surface of the intermediate strength member 13 at a position above the center of the rear frame 7, and the rear end of the lower central frame 15 is pushed flatly up and down. It is crushed and welded to the lower surface of the intermediate strength member 13 at a position below the center of the rear frame 7.

  The front end portions of the center frames 14 and 15 are flattened up and down and welded to the upper surface and the lower surface of the front frame 8, respectively.

  Reclining brackets 24 that support one end of the reclining mechanism 4 are coupled to the left and right side walls of the intermediate strength member 13 by bolts. The other end of each reclining mechanism 4 is supported by a side frame 71 (described later) welded to one side portion of the seat back frame 12 of each seat back 5. The pivot bracket 32 welded to one side of the seat back frame 12 is connected to the pivot bracket 10 on the seat cushion frame 2 side via the pivot shaft 16.

  A plurality of wires 17 arranged in a lattice shape are welded to the seat cushion frame 2, and the bottom plate of the seat cushion 3 is supported by these wires 17.

  Thus, for example, if the own vehicle is collided from a succeeding vehicle and a large forward load is applied to the upper portion of the seat back 5 from the luggage in the rear luggage compartment, the load passes through the reclining mechanism 4 and the intermediate strength member 13. The rear frame 7 acts as a torsional moment. The intermediate strength member 13 is welded to the rear end portions of a pair of upper and lower central frames 14 and 15 arranged vertically with the center of the rear frame 7 in between. Since the front end portions of the center frames 14 and 15 are welded to the upper and lower surfaces of the front frame 8, the intermediate strength member 13, the center frames 14 and 15 and the front frame 8 constitute one truss structure, The torsional moment is supported by the compressive stress generated in the upper central frame 14 and the tensile stress generated in the lower central frame 15. Therefore rear frame 7 is made to have a strong torsional rigidity, it is possible to suppress the torsional deformation of the rear frame 7 effectively.

  When a forward load is applied to the intermediate strength member 13, that is, the central portion of the rear frame 7, the bending rigidity of the rear frame 7 is enhanced by the compressive stress generated in the upper and lower central frames 14 and 15. , Bending deformation of the rear frame 7 can be suppressed.

  Further, the rear end portion of the lower central frame 15 is flattened up and down and welded to one or both lower surfaces of the left and right intermediate strength members 13, so that a wide welding range is secured and the strength of the welded portion is increased. Not only can the height be increased, but a sufficient distance can be ensured between the rear end of the lower central frame 15 and the floor of the vehicle body.

  Further, the front end portions of the upper and lower central frames 14 and 15 are flattened up and down and welded to the upper and lower surfaces of the front frame 8, respectively, so that a wide welding range is secured to increase the strength of the welded portion. Therefore, it is possible to reduce the size of the front frame 8 and to secure a sufficient distance between the front end portion of the lower central frame 15 and the floor surface of the vehicle body.

  As shown in FIG. 17, a buckle 18 for connecting a tongue plate of a seat belt is connected to side walls of the left and right intermediate strength members 13 by bolts 19. The left and right buckles 18 are respectively provided with sensors (not shown) for detecting that the tongue plates are connected thereto, and lead wires 20 connected to these sensors are provided from the outer surfaces of the left and right buckles 18. It is extended.

  A lead wire holder 21 disposed between the upper and lower central frames 14 and 15 is fixed to the lower central frame 15 or the upper central frame 14, and the lead wire 20 is attached to the lead wire holder 21. A plurality of clips 22 to be held are mounted. The left and right lead wires 20 are held by a clip 22 and then bundled together, and a connector 23 is connected to the end thereof. This connector 23 is connected to another connector (not shown) connected to a display that displays the presence or absence of connection of the tongue plate to the buckle 18.

  In this manner, the lead wire holder 21 that supports the lead wire 20 via the clip 22 is attached to the lower central frame 15 or the upper central frame 14 and is disposed between the upper and lower central frames 14 and 15. Therefore, the dead space between the central frames 14 and 15 can be effectively used for installing the lead wire holder 21.

  Next, in FIG. 2 and FIG. 5, a pair of left and right movable rails 25 extending in the front-rear direction are bolted to the lower surfaces of the left and right side frames 9 of the seat cushion frame 2. A pair of left and right fixed rails 27 laid on the floor 26 and extending in the front-rear direction are slidably supported. Between these movable and fixed rails 25 and 27, a known slide lock mechanism 28 capable of selectively locking the rear seat 1 at a plurality of front and rear adjustment positions is provided, and the lock state of these slide lock mechanisms 28 is released. A release lever 29 is pivotally supported by each movable rail 25, and each release lever 29 is connected to a lock spring 30 that urges the release lever 29 in the lock operation direction of the slide lock mechanism 28.

  The left and right release levers 29 are connected to both ends of a common release bar 31. The release bar 31 is formed by bending a single round bar, and a pair of left and right arm portions 31a extending forward from the left and right release levers 29, and a hook portion integrally connecting the front end portions of the arm portions 31a. The flange 31b is arranged in parallel with the front edge of the seat cushion 3 at the lower part of the seat cushion 3. A knob 33 is continuously provided at a central portion of the flange portion 31b corresponding to an intermediate position between the left and right seating portions 3a. The knob 33 is bent from the center front surface of the collar portion 31b to the front surface of the seat cushion 3 so as to face the front surface of the seat cushion 3, and bent from the left and right ends of the grip portion 33a toward the collar portion 31b. It consists of a pair of left and right support portions 33b extending outward in the left and right directions, and both the support portions 33b are welded to the flange portion 31b over substantially the entire length thereof.

  Since the grip portion 33a of the knob 33 enters the field of view of the occupant sitting on the left and right seats 3a, the occupant can immediately grip the grip portion 33a of the knob 33 and pull it upward. There is no worry of getting your hands dirty by touching the fixed rails 25, 27, etc. When the knob 33 is lifted, the release bar 31 swings upward together with the release lever 29 to release the locked state of the slide lock mechanism 28. Therefore, the movable rail 25 slides back and forth, that is, the rear seat 1 It can move back and forth. When the front and rear positions of the rear seat 1 are adjusted and then the knob 33 is released, the slide lock mechanism 28 is actuated by the action of the lock spring 30 to lock the rear seat 1 in the adjusted position.

  Further, as described above, the left and right support portions 33b of the knob 33 are welded to the flange portion 31b over substantially the entire length thereof, and the rigidity of the flange portion 31b is effectively strengthened. It can be accurately and simultaneously transmitted to the left and right slide lock mechanisms 28 via the release bar 31 to release the locked state. Further, by increasing the rigidity of the release bar 31, the diameter of the release bar 31 can be reduced, which can contribute to weight reduction.

  As shown in FIGS. 12 and 13, a lateral groove portion 34 for receiving the front frame 8 is formed on the lower surface of the seat cushion 3, and the flange portion 31 b of the release bar 31 is disposed in the lateral groove portion 34. Is done. Further, a notch portion 35 (see FIGS. 1 and 12) facing the grip portion 33a of the knob 33 is formed on the lower surface of the front end portion of the center portion of the seat cushion 3. A longitudinal groove portion 36 for receiving the central frame 14 is formed on the lower surface of the seat cushion 3.

  In the skin 39 covering the surface of the cushion member 38 of the seat cushion 3, an extended skin 40 extending backward beyond the lateral groove 34 is connected to the lower end of the skin 39 covering the front end surface of the cushion member 38. A first hook 41 attached to the rear end of 40 is locked to the wire 17 of the seat cushion frame 2. Thus, the flange portion 31 b of the release bar 31 in the lateral groove portion 34 is covered with the skin 39.

  As shown in FIG. 6, a restricting plate 43 positioned immediately after the notch 35 is welded to the center of the front frame 8, and the restricting plate 43 extends downward to grip the knob 33. The restriction ring 44 disposed in the portion 33a is welded.

  As shown in FIG. 12, an opening 45 corresponding to the notch 35 is provided at the front center of the extended skin 40, and the grip 33 a of the knob 33 is exposed forward through the opening 45. . A long decorative piece 46 is connected to the upper edge of the opening 45 so as to cut the opening 45 vertically, and a short piece 47 shorter than the decorative piece 46 is connected to an intermediate portion of the decorative piece 46. A hook-and-loop fastener 48 is attached to the tip of the decorative piece 46, and a second hook 49 is attached to the tip of the short piece 47, respectively. A third hook 50 is attached to the lower edge of the opening 45.

  The short piece 47 extends rearward along the ceiling surface of the notch 35, the second hook 49 is locked to the restriction plate 43, and the third hook 50 is locked to the restriction ring 44. The decorative piece 46 is pulled backward by the short piece 47, extends downward, passes through the grip portion 33a from the upper side to the lower side, and then extends rearward while covering the center portion of the regulating ring 44 and the collar portion 31b. The hook and loop fastener 48 is joined to the lower surface of the extended skin 40. Thus, a wide and clean operation space 51 is defined in the cutout portion 35 for the passenger to hold the grip portion 33a and operate it up and down.

  Thus, the grip portion 33a of the knob 33 is exposed to the operation space 51 in the center portion of the seat cushion 3, that is, the notch portion 35 at the intermediate position between the left and right seat portions 3a, and sits on the left and right seat portions 3a. Any occupant can visually recognize and be close to any occupant as much as possible, so any occupant immediately grasps the grip portion 33a, accurately lifts the release bar 31, and slides. The lock state of the lock mechanism 28 can be released, and the operation space 51 of the notch 35 is wide, so that the operability of the knob 33 is very good.

  Moreover, since the release bar 31 is covered with the extended skin 40 together with the support portion 33b of the knob 33, interference between the release bar 31 and other objects stored under the seat cushion 3 is avoided, and the occupant can seat the seat cushion. When the hand is turned to the lower surface of 3, the hand does not get dirty by touching the collar 31b.

  Further, since the decorative piece 46 covers the center portion of the regulating ring 44 and the collar portion 31b, it is possible to maintain the aesthetic appearance, and avoid that the occupant's hand gripping the grip portion 33a touches the central portion of the collar portion 31b. And you can prevent your hands from getting dirty.

  Further, the flange 31b of the release bar 31 is disposed below the front frame 8 in the lateral groove 34 on the lower surface of the cushion member 38 that receives the front frame 8, so that the deformation of the seat cushion 3 due to the weight of the occupant is reduced. The malfunction of the release bar 31 can be prevented without being affected. In addition, since the flange 31b moves up and down in the lateral groove 34 as the knob 33 is moved up and down, it does not interfere with the extended skin 40 that covers the open lower surface of the lateral groove 34.

  Referring again to FIG. 6, a cable guide 53 that stands up from the upper surface and bends in a circular arc shape is fixed to the restriction plate 43, and the outer cable 54a of the Bowden cable 54 supported by the cable guide 53 is attached to the seat. The lower end of the cushion 3 extends to the rear luggage compartment and is supported by the seat back frame. The front end portion of the inner cable 54b guided by the outer cable 54a extends below the cable guide 53, so that the release bar 31 is connected to a connection fitting 55 attached to the central portion of 31. An operation member (not shown) facing the luggage compartment is connected to the rear end of the inner cable 54b. When the inner cable 54b is pulled through the operation member, the release bar 31 is pulled up, and the slide lock mechanism 28 can be unlocked. As described above, since the release bar 31 can be lifted even in the luggage compartment side, the lock state of the slide lock mechanism 28 is released, the rear seat 1 is moved forward, and the luggage compartment can be enlarged and used. There is convenience.

  A pair of protective members 56 that protect the cable guide 53 are disposed on both the left and right sides of the cable guide 53, and these protective members 56 are formed integrally with the restriction plate 43 and welded to the front frame 8.

  Next, in FIGS. 7 to 11, a synthetic resin rail cover 58 that covers the front end portions of the movable and fixed rails 25 and 27 is attached to the left and right side frames 9. For the attachment, a notch 59 opening forward and a locking hole 60 adjacent to the rear of the notch 59 are provided at the front end of the side frame 9. On the other hand, the rail cover 58 is opposed to the U-shaped inner cover portion 58a that covers the movable and fixed rails 25 and 27 from the front end surface to both the inner and outer side surfaces with a gap on the outer surface of the inner cover portion 58a. The U-shaped outer cover portion 58b and the common bottom portion 58c that integrally connect both the cover portions 58a and 58b, and a plurality of portions extending between the opposing surfaces of the inner cover portions 58a and 58b. A reinforcing rib 70 is formed.

  The inner cover portion 58 a includes a ceiling portion 61 that contacts the upper surface of the front end portion of the side frame 9, a convex portion 62 that protrudes from the ceiling portion 61 and engages with the notch 59, and a rear portion of the convex portion 62. A locking claw 63 is provided that rises upward from the end and engages with the locking hole 60 from below.

  Further, fixed arms 64 and 65 projecting upward are integrally formed on the outer and inner rear ends of the U-shaped outer cover portion 58b, and the outer fixed arms 64 are formed on the outer side of the side frame 9. The side fixing arm 65 is fixed to the side surface 9 of the side frame 9 with a bolt 67 or clip. A plurality of reinforcing ribs 68 extending in the vertical direction are formed on the inner surface or the outer surface of each of the fixed arms 64 and 65.

  When attaching the rail cover 58, first, the ceiling 61 of the inner cover 58a is placed on the upper surface of the front end of the side frame 9 in the inclined posture of the rail cover 58 with the rear end facing downward. When the convex portion 62 is engaged with the notch 59 of the side frame 9 and then the rail cover 58 is rotated horizontally with the convex portion 62 as a fulcrum, the locking claw 63 of the rail cover 58 is engaged with the side frame 9. It can be engaged with the stop hole 60. By doing so, the front end portion of the rail cover 58 can be fixed to the side frame 9 without using a fixing member such as a bolt.

  Thereafter, the outer fixed arm 64 is fixed to the outer surface of the side frame 9 with a bolt 66 or a clip, and the inner fixed arm 65 is fixed to the reinforcing collar 9a of the side frame 9 of the side frame 9 with a bolt 67 or clip. If it is fixed, the rear end portion of the rail cover 58 can be fixed to the side frame 9, thereby preventing the locking claw 63 from being detached from the locking hole 60.

  As described above, the rail cover 58 can cover the front end portions of the fixed and movable rails 27 and 25 regardless of the longitudinal movement of the movable rail 25 while the rail cover 58 is securely attached to the side frame. Moreover, it is possible to cover the ends of various rails having different structures, and is highly versatile.

  Next, in FIG. 2, FIG. 14 and FIG. 15, the following reinforcing structure is adopted for the pipe-like column part 12a on the left and right inner sides of the seat back frame 12. That is, a side frame 71 having a U-shaped cross section is welded to the column portion 12a with its open surface facing inward. At that time, the support column 12 a is accommodated in the side frame 71 and welded to the rear side wall of the side frame 71. The lower end portion of the side frame 71 extends downward from the support column portion 12 a, and the lower end portion of the side frame 71 supports the reclining mechanism 4 in cooperation with the reclining bracket 24.

  A reinforcing member 72 is welded to the support column 12a and the side frame 71. At that time, the rear side wall of the reinforcing member 72 is welded to the front surface of the support column 12 a, and the front side wall is overlapped with the front surface of the side frame 71 and welded.

  Thus, the seat back frame 12 is supported by the intermediate strength member 13 via the side frame 71 and the reclining mechanism 4, and in the front-rear direction including the side frame 71 and the reinforcing member 72 around the column portion 12 a. A reinforcing structure 73 having a rectangular section with a long side and a large section modulus is formed, and thereby the bending rigidity in the front-rear direction of the support column 12a is reinforced, so that the seat back frame 12, especially the inner support column 12a, It can withstand the large longitudinal load that is applied during the rear-end collision of the following vehicle.

  In FIGS. 2, 14 and 16, a driven release lever 74 of the reclining mechanism 4 is pivotally supported on the inner side of the lower end portion of the side frame 71, and when the driven release lever 74 is swung upward. The locked state of the reclining mechanism 4 is released. The driven release lever 74 is connected to a drive release lever 75 that is pivotally supported on the front side of a lever support plate 76 provided on the upper portion of the seat back frame 12 via an inner cable 78 a of a Bowden cable 78.

  A support plate 79 extends from the lower end portion of the reinforcing member 72 toward the driven release lever 74, and an outer support portion that supports the lower end portion of the outer cable 78 b of the Bowden cable 78 is provided at the lower end of the support plate 79. 79a is formed. A guide groove 80 is formed on the side wall of the lower end of the reinforcing member 72 to guide the intermediate portion of the outer cable 78b. As described above, the reinforcing member 72 not only reinforces the support column 12a but can also serve as a support and guide for the Bowden cable 78.

  As shown in FIGS. 2 and 16, the upper and side portions of the lever support plate 76 are welded to the beam portion 12c of the seat back frame 12 and the left and right outer column portions 12b, respectively. A plurality of wires 81 are connected to the left and right support columns 12a and 12b of the seat back frame 12 to support the cushion member 38 of the seat back 5, and the lever 81 is supported on the uppermost wire 81. The back surface of the plate 76 is welded. At that time, the uppermost wire 81 is formed with a crank portion 81 a that is inclined to contact with the back surface of the lever support plate 76, and the crank portion 81 a is welded to the back surface of the lever support plate 76.

  In this way, even if there is a variation in the gap between the back surface of the lever support plate 76 welded to the seat back frame 12 and the general outer peripheral surface of the uppermost wire 81, the uppermost wire 81 is connected to the left and right support columns 12a. , The crank portion 81a is appropriately rotated together with the uppermost wire 81 in a state where both ends of the wire 81 are in contact with the left and right support columns 12a, and is brought into contact with the back surface of the lever support plate 76. In the abutting state, both ends of the wire 81 are welded to the left and right support columns 12a, and the crank portion 81a is welded to the back surface of the lever support plate 76, so that the lever support plate 76 regardless of the gap variation. And the uppermost wire 81 can be welded. In this way, the lever support plate 76 is welded to the seat back frame 12 and the uppermost wire 81 at three locations, and the support rigidity can be increased.

  In addition to the upper end of the inner cable 78 a of the Bowden cable 78, the drive release lever 75 that is pivotally supported by the lever support plate 76 includes a return spring 82 and a release operation member 83 that protrudes from the upper end surface of the seat back 5. Connected.

  Thus, when the release operation member 83 is pulled against the urging force of the return spring 82, the driven release lever 74 is swung upward through the drive release lever 75 and the inner cable 78a, and the reclining mechanism 4 The locked state is released, and the seat back 5 can be tilted. If the release operation member 83 is released, the reclining mechanism 4 is locked and the seatback 5 can be fixed at a desired angle.

  The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the invention. For example, the present invention can be applied to a front seat for one person. Moreover, the skin 39 and the extended skin 40 can also be comprised with the same raw material. The mounting structure of the rail cover 58 can also be applied when the rear ends of the fixed and movable rails 27 and 25 are covered by the rail cover.

1 ···· Sheet (rear seat)
2 .... Seat cushion frame 3 .... Seat cushion 25 ... Movable rail 26 ... Floor 27 ... Fixed rail 28 ... Slide lock Mechanism 31 ... Release bar 33 ... Knob 33a ... Grip part 33b ... Support part 35 ... Notch 39 ... Skin 40 ... .... Extension skin 43 ... Restriction plate 44 ... Restriction ring 45 ... Opening 46 ... Cosmetic piece 49 ... First hook (second hook) )
50 ... 2nd hook (3rd hook)

Claims (6)

A fixed rail (27) that is laid on the vehicle floor (26) and extends in the front-rear direction, and a seat cushion frame (2) that supports the seat cushion (3) and is slidable on the fixed rail (27). A slide lock mechanism (28) disposed between the movable rails (25) to be engaged, and capable of selectively locking the movable rail (25) at a plurality of predetermined sliding positions, and the slide lock mechanism (28 The vehicle seat slide lock is composed of a release bar (31) which is connected to the slide lock mechanism (28) and disposed at the lower part of the seat cushion (3). In the device,
The release bar (31) is provided with a knob (33) that protrudes from the front surface of the release bar (31) so as to face the front surface of the seat cushion (3) and is gripped by an occupant seated on the seat cushion (3). The release bar (31) is housed inside the extended skin (40) extending from the skin (39) of the cushion (3) and covering the bottom surface of the seat cushion (3) except for the knob (33). A vehicle seat slide lock device. The vehicle seat slide lock device according to claim 1,
The slide lock mechanism between the pair of left and right fixed rails (27) laid on the vehicle floor (26) and the pair of left and right movable rails (25) fixed to the seat cushion frame (2). (28) and both ends of the release bar (31) are connected to the left and right slide lock mechanisms (28), and the knob (33) is moved forward from the center of the release bar (31). A grip part (33a) arranged at a distance, and a pair of left and right support parts (bending from the left and right ends of the grip part (33a) toward the release bar (31) and extending in parallel with the release bar (31) ( 33b), and the support portion (33b) is welded to the release bar (31). The slide lock device for a vehicle seat according to claim 1 or 2,
A slide lock device for a vehicle seat, wherein a notch portion (35) facing the knob (33) is provided at a lower edge portion of a front end of the seat cushion (3). The slide lock device for a vehicle seat according to any one of claims 1 to 3,
An opening (45) for exposing the knob (33) is provided at a position corresponding to the notch (35) of the extended skin (40), and extends from the upper edge of the opening (45). A vehicle seat characterized in that a decorative piece (46) is arranged so as to cover the release bar (31) on the inner side of the knob (33) and to be connected to the extended skin (40) behind it. Slide lock device. The vehicle seat slide lock device according to claim 4,
On the seat cushion frame (2), a restricting plate (43) located immediately after the notch (35) and a restricting ring (44) disposed inside the knob (33) are fixedly provided. The decorative piece (46) is disposed so as to bypass the restriction ring (44), and the decorative piece (46) is locked to the restriction plate (43) to be attached to the decorative piece (46). A slide lock device for a vehicle seat, comprising a first hook (49) for pulling the intermediate portion rearward. The vehicle seat slide lock device according to claim 5,
A slide lock device for a vehicle seat, wherein a second hook (50) locked to the restriction ring (44) is attached to a lower edge portion of the opening (45).

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