JP4771116B2 - Sliding car seat - Google Patents

Description

  The present invention relates to a slide type automobile seat in which a seat body is installed so as to be movable in the front-rear direction of a vehicle with a slide rail.

  Some automotive seats are assembled with a cushion frame 1 as shown in FIG. The cushion frame 1 is spanned and fixed between a pan-shaped front frame 1a, side frames 1b and 1c fixed to the left and right sides of the front frame 1a, and the rear sides of the side frames 1b and 1c. And a rear frame 1d.

  As shown in FIG. 8 (only one side is shown), the cushion frame 1 includes an upper rail 2a attached to the lower side of the side frame 1b, and a lower rail 2b attached to the floor surface of the vehicle body with stand leg portions 3a and 3b. The upper rail 2a is slidably supported by the lower rail 2b, and includes a slide rail 2 that moves the seat body in the longitudinal direction of the vehicle.

  The upper rail 2a is formed of substantially J-shaped slide bases 20a and 20b fixed to each other on the lower side of the side frame 1b as shown in FIG. The lower rail 2b is formed of a rail base frame 21 having an upward U-shape, and substantially inverted L-shaped inner bending flanges 22a and 22b that bend inward with a relative distance from both upper ends of the rail base frame 21. ing.

  In the upper rail 2a, the side frame 1b is placed upright above the relative distance between the inner bending flanges 22a and 22b, and the lower curved portions of the slide bases 20a and 20b are assembled inside the inner bending flanges 22a and 22b. Is provided on the lower side of the slide bases 20a and 20b so as to roll inside the rail base frame 21, so that the roller 23 is slidably supported by the lower rail 2b.

  As shown in FIG. 10, the slide rail 2 is provided with a slide lock. This slide lock is assembled with a lock plate 4 disposed on the side of each upper rail 2a, and a rod lever 5 (see FIG. 7) for pulling operation that is mounted between the lock plates 4. Yes.

  The lock plate 4 is positioned along the front-rear direction of each upper rail 2a, and is pivotally supported by a support shaft 40 that is inserted and fixed to the plate surface of the slide bases 20a and 20b at a substantially middle side in the longitudinal direction. 40 is pivotally mounted on a fulcrum. Further, a semicircular arc-shaped long hole 41 centering on the support shaft 40 is provided on the plate surface near the rear end, and a guide pin 42 protruding from the plate surface of the upper rail 2a is inserted into the long hole 41 so that the swing guide is possible. It is attached.

  The lock plate 4 is attached so as to be always biased upward by a coil spring 43 near the rear end. The coil spring 43 is hooked on a protruding piece 43a whose one spring end is cut and bent from the plate surface of the side frame 1b, and the other spring end is hooked on a protruding piece 43b bent from the upper edge of the lock plate 4 to It is provided between the frame 1b.

  The lock plate 4 has a latching piece 44 projecting laterally from the lower end edge, a plurality of receiving holes 45 are provided on the plate surface of the latching piece 44, and the latching pieces 44 are arranged in the longitudinal direction of the slide bases 20a and 20b. It is attached by projecting from the slit 46 formed on the lower side of the inner bending flange 22a. With respect to the lock plate 4, the lower rail 2b is provided with a plurality of projecting teeth 47 that mesh with the receiving holes 45 of the latching pieces 44 so as to cut out the lower end side of the inner bending flange 22a in an uneven shape.

  The rod lever 5 for pulling operation is formed by bending a pipe member into a substantially U-shaped plane. Since the rod lever 5 is flatly crushed at the rear end of each shaft and welded to the front end side of the lock plate 4, the rod lever 5 is interposed between the lock plates 4 so as to project forward at the lower portion of a seat cushion (not shown). It is installed as a stretch.

  In this slide lock, the coil spring 43 constantly biases the rear end side of the lock plate 4 upward, and the latching piece 44 meshes with the plurality of projecting teeth 47 in the receiving hole 45. Therefore, as shown in FIG. 2a is locked by the lower rail 2b so as not to slide. On the other hand, as shown in FIG. 11, when the rod lever 5 is pulled up so as to be close to the lower side (in the direction of the arrow) of the seat cushion, the rear end side of the lock plate 4 resists the coil spring 43 and moves downward with the support shaft 40 as a fulcrum. The tablet is unlocked by swinging (Patent Document 1).

In the slide lock, it is necessary to separately attach and mount the lock plate to the left and right upper rails. However, because the lock plate is welded and fixed to both sides of the rod lever in advance, as the lock plate in this frame is individually assembled to the left and right upper rails, the rod lever as well as the lock plate on the other side become an obstacle. Therefore, it takes time to assemble the entire lock.
JP 2004-51082 A

  SUMMARY OF THE INVENTION An object of the present invention is to constitute a slide type automobile seat that includes a rod lever for pulling operation and can be easily assembled and mounted separately on left and right upper rails.

Claim 1 of the present application includes a slide rail that slidably supports the left and right upper rails attached to the lower side of the seat cushion with the left and right lower rails attached to the floor surface of the vehicle body, and locks the upper rail to the lower rail. Is mounted on the upper rail, and the rod lever for lifting operation for releasing the lock plate from the lower rail is mounted on the left and right lock plates from the front end side of the upper rail.
A lever bracket that extends from both ends of the rod lever shaft toward each lock plate, a lower joint that extends from each end of the lever bracket to the plate surface of the lock plate, and a base that protrudes from each end of the lever bracket and close to the base of the lower joint Provide a rod lever with an upper joint facing each other with a gap,
A receiving piece for receiving the tip side of the lower joint, a holding piece for pressing the base side of the lower joint within the interval facing the upper and lower joints, and a pressing leaf spring for holding the tip side of the lower joint between the receiving piece The locking plate is provided with a hooking plate spring that pushes the upper joint within the interval facing the lower joint and presses the presser piece against the base side of the lower joint.
The rod lever is provided so that it can be attached later from the front end side of the upper rail after each lock plate is assembled.

According to claim 2 of the present application, the leading end side of the lower joint is elastically pressed against the receiving piece by a push-in leaf spring, and the leading end side of the lower joint is sandwiched between the receiving pieces, and the upper joint is within an interval facing the lower joint. It is pushed up by the hooking plate spring and presses the presser piece against the base side of the lower joint, and is formed by a punched hole provided on the plate surface near the tip of the upper joint and an inverted claw provided on the plate surface of the hooking plate spring. Add engagement,
The rod lever is provided so that it can be attached later from the front end side of the upper rail after each lock plate is assembled.

According to the slide type automobile seat according to claim 1 of the present application, a lever bracket that extends from both ends of the shaft of the rod lever toward each lock plate, and a joint that extends from each end of the lever bracket to the plate surface of the lock plate; The rod lever is provided with an upper joint that protrudes from the tip end side of the lever bracket and is opposed to the base portion of the lower joint with a distance therebetween,
A receiving piece for receiving the leading end side of the lower joint, a presser piece for pressing the base side of the lower joint within an interval opposite to the upper joint, and a receiving piece by pressing the leading end side of the lower joint to the receiving piece. The lock plate includes a push-in leaf spring that sandwiches the leading end of the foot with the receiving piece, and a hook leaf spring that pushes the upper joint within the interval facing the lower joint and presses the presser piece against the base side of the lower joint. Provided,
By installing the rod lever so that it can be attached later from the front end side of the upper rail after assembling each lock plate, the left and right lock plates can be easily assembled and attached individually to each upper rail. Since it can be easily installed with one-touch mounting, it is possible to quickly assemble the entire lock.

According to the slide type automobile seat according to claim 2 of the present application, the leading end side of the lower joint is pressed against the receiving piece by the pushing plate spring, and the leading end side of the lower joint is sandwiched between the receiving piece and the upper joint. Is pushed up by the hooking plate spring within the interval facing the lower joint, and the presser piece is pressed against the base side of the lower joint, and a punch hole provided on the plate surface near the tip of the upper joint and the hooking plate spring Add engagement with the inverted claw provided on the plate surface,
By installing the rod lever so that it can be attached later from the front end side of the upper rail after each lock plate is assembled, the rod lever can be attached more securely so that it does not come off the lock plate.

  The illustrated embodiment is applied to constructing a rod lever 5 for pulling operation which is a characteristic part of the present invention. Except for the configuration of the rod lever 5, the same cushion frame as that shown in FIG. 7 is used as a base, and a slide rail and a slide lock that perform the same functions as those shown in FIGS. 10 and 11 are provided. . In this configuration, components common to those in FIGS. 7 to 11 are denoted by the same reference numerals.

  As shown in FIG. 1, the rod lever 5 is bent into a substantially U shape projecting forward with the central shaft portion 5a as a grip portion, and the left and right shaft portions 5b and 5c are outward from both ends of the shaft of the central shaft portion 5a. The entire lever is formed of a pipe member. The rod lever 5 is fitted and fixed with support shafts 5d and 5e protruding in the extending direction from the shaft ends of the left and right shaft portions 5b and 5c.

  The support shafts 5d and 5e are provided with a press-fit shaft portion 50 that is fitted and fixed within a diameter from the shaft end of the rod lever 5, a main shaft portion 51 that is inserted into a rising flange of a lever bracket, which will be described later, and a push nut or an E-ring, which will be described later. It is formed from a protruding end shaft portion 52 to be fitted and fixed. An overhang bar 53 that is brought into contact with the shaft end of the rod lever 5 and welded together is provided at the approximate center of the shaft. The projecting end shaft portion 52 is provided with a split groove 54 that cuts one end of a coil spring, which will be described later, from the projecting end surface.

  A stopper 55 is provided on the support shafts 5d and 5e so as to lock the rising flange of the lever bracket from the upper side. The stopper 55 is formed of a ring portion 55a that is fitted and fixed on the axis of the main shaft portion 51, and an overhang portion 55b that protrudes laterally from the upper peripheral edge of the ring portion 55a.

  A lever bracket 6 is attached to both ends of the rod lever 5 so as to face a lock plate (not shown) as shown in FIGS. At the distal end side of the lever bracket 6, the lower joint 7 extending to the lock plate and engaging the distal end portion with the lock plate, and protruding toward the relative side of the lower joint 7 near the base end portion, is engaged with the lock plate. An upper joint 8 to be worn is attached.

  The lever bracket 6 is formed so as to be bent in a downward slope from the base end side 6a through which the support shaft 5d of the rod lever 5 is inserted and to have a substantially reverse side shape reaching the front end side 6b. Further, it is formed to have a left and right rising flanges 6c, 6d (see FIG. 3) and to have a substantially U-shaped cross section. The rising flange 6d is provided with an engaging edge 6e for receiving the above-described overhanging portion 55b of the stopper 55 by cutting out the upper peripheral edge of the base end side 6a into a concave shape.

  The lower joint 7 is formed to be rigid because the plate surface is bent in a substantially inverted U shape in cross section. The lower joint 7 has a base portion 7a welded and fixed to the inside of the lever bracket 6 near the front end, a longitudinal portion 7b extending outward from the base portion 7a is stepped downward from the front end of the lever bracket 6, and the front end portion 7c is lowered to the base portion. It is attached so as to be stepped up above 7a and extend in the horizontal direction.

  The upper joint 8 is formed in a rigid shape because the plate surface is bent in a substantially U-shape with the cross section substantially upward. The upper joint 8 is welded and fixed with the base portion 8a applied to the base portion 7a of the lower joint 7, and a predetermined gap G is separated between the protruding piece portion 8b extending from the base portion 8a and the base portion of the lower joint 7. Attached. The tip 8c is bent so as to rise upward. A rectangular punch hole 8d is provided on the bottom surface of the projecting piece 8b on the side close to the tip 8c.

  In contrast to the rod lever 5 having the above-described portions 6 to 8, the lock plate 4 includes a receiving piece 48 a for receiving the distal end side 7 c of the lower joint 7 and a base side of the lower joint 7 as shown in FIG. 4. A presser piece 48b to be pressed inside the gap G opposite to the joint 8 is provided on the lower side. The receiving piece 48 a and the holding piece 48 b are formed in a substantially U shape over the lower end edge of the opposite side of the lock plate 4.

  For the receiving piece 48a and the holding piece 48b, the lock plate 4 has a pushing spring portion 9a that presses the leading end side of the lower joint 7 against the receiving piece 48a and sandwiches the leading end side of the lower joining 7 with the receiving piece 48a; A leaf spring 9 having a hook spring portion 9b that pushes the upper joint 8 inside the gap G facing the lower joint 7 and presses the presser piece 48b against the base side of the lower joint 7 is attached.

  The pushing spring portion 9a and the hooking spring portion 9b are provided by being bent in the horizontal direction from the lower side of the leaf spring 9. An inverted claw 9c is provided on the hook spring portion 9b by bending the plate surface into an inverted V shape. The entire spring is held on the same axis as a bearing pin 49b that supports the spring holder 49a of the return spring 49 so as to be swingable. The return spring 49 biases the lock plate 4 in the locking direction, and the spring holder 49a is attached and fixed to the return spring 49 by a caulking shaft 49c.

  The rod lever 5 configured as described above is attached by attaching the left and right lock plates 4 individually to the upper rails of the slide rails individually and then attaching the lock plates 4 to the lock plates 4 by one-touch attachment.

  As shown in FIG. 5, the rod lever 5 is fitted into the inner side of the receiving piece 48 a of the distal end portion 7 c of the lower joint 7 attached to the lever bracket 6 on both sides, and the holding piece 48 b is connected to the base side of the lower joint 7. It is applied to the base side of the lower joint 7 inside the gap G facing the upper joint 8. At the same time, the distal end side 7c of the lower joint 7 is pressed against the receiving piece 48a by the pushing spring portion 9a so that the distal end side 7c of the lower joint 7 is sandwiched between the receiving piece 48a, and the upper joint 8 is connected to the lower joint 7 together. The one-touch mounting can be easily performed by pushing up the holding piece 48b to the base side of the lower joint 7 by pushing up the hook spring portion 9b inside the opposing gap G.

  Since the rod lever 5 can be easily attached by one-touch after retrofitting, the left and right lock plates 4 can be easily assembled and attached individually to the upper rails 2a of the slide rail 2, and the entire lock can be assembled quickly.

  In addition to the elastic mounting by the leaf spring 9, by engaging the punch hole 8d provided on the plate surface near the tip of the upper joint 8 and the inverted claw 9c provided on the plate surface of the hook spring portion 9b, The rod lever 5 can be retrofitted more securely so that it does not come off the lock plate 4.

  The rod lever 5 described above is assembled with a coil spring 56 that urges the entire lever in the jumping direction and presses the protruding portion 55b of the stopper 55 to one edge of the engaging edge 6e provided on the base portion 6a of the lever bracket 6. Since it is mounted, it can be displaced below the lever bracket 6 and is attached so that it can be pulled up to unlock the lock plate 4.

  As shown in FIG. 6, the coil spring 56 is fitted into the support shaft portion 51 of the support shaft 5d inserted through the rising flanges 6c and 6e of the lever bracket 6 and the one spring end 56b is divided into the support pin 5d. Since the other spring end 56c is inserted into and locked in the spring receiving cylinder 6f formed by extruding inside the bottom of the lever bracket 6 (see FIG. 3), the support shaft 5d and the lever bracket 6 are locked. It is installed between the two. The supporting shaft 5d is supported by the rising flange 6c of the lever bracket 6 by fitting a push nut or E-ring 56 to the protruding shaft 52.

  In the rod lever 5 configured as described above, the entire lever is below the lever bracket 6 by the coil spring 56 until the protruding portion 55b of the stopper 55 is pressed against the other edge of the engaging edge 6e provided on the base portion 6a of the lever bracket 6. Therefore, even if the load hits the rod lever 5, the load can be reliably prevented from being damaged or deformed.

  In the rod lever 5, as described above, the left and right lock plates 4 can be easily assembled and attached individually to the upper rails of the slide rail, and the coil spring 56 is attached to the supporting shafts 5d and 5e of the rod lever 5 and the lever. Since it is latched between the bracket 6 and the bracket 6, it can be displaced downward from the lever bracket 6 with a simple structure and can be pulled up in the releasing direction of the lock plate 4.

It is a top view which shows the rod lever with which the sliding-type vehicle seat which concerns on this invention is equipped omits the center part. It is a side view which shows the rod lever of FIG. 1 assembled | attached to a lever bracket. It is a top view which shows the rod lever of FIG. 2 by the one side part. FIG. 2 is a side view showing the rod lever of FIG. 1 assembled to a lock plate. FIG. 5 is an enlarged side view showing the rod lever of FIG. 4 assembled to a lock plate. FIG. 2 is a partial cross-sectional view showing the rod lever of FIG. 1 assembled to a lock plate. It is a perspective view which shows the seat cushion frame which concerns on a general example. It is explanatory drawing which shows the seat cushion frame which concerns on a prior art example from the one side surface of a slide rail. It is explanatory drawing which shows the slide rail of FIG. 8 from the one side front. It is explanatory drawing which shows the slide rail of FIG. 8 in the AA line visual field of FIG. It is explanatory drawing which shows the slide lock of FIG. 8 in the unlocked state by a rod lever.

Explanation of symbols

4 Lock plate 48a Receiving piece 48b Holding piece 5 Rod lever 5d, 5e Rod lever spindle 6 Lever bracket 6c, 6d Lever bracket rising flange 7 Lower joint 8 Upper joint G Gap between lower joint and upper joint 9a Push-in leaf spring 9b Hook leaf spring 9c Inverted claw

Claims (2)

Equipped with slide rails that slidably support the left and right upper rails attached to the lower side of the seat cushion with the left and right lower rails attached to the floor of the vehicle body, and a lock plate that locks the upper rail to the lower rail is assembled and mounted on the upper rail In addition, in the slide type automobile seat in which the rod lever for lifting operation for releasing the lock plate from the lower rail is mounted on the left and right lock plates from the front end side of the upper rail,
A lever bracket that extends from both ends of the rod lever shaft toward each lock plate, a lower joint that extends from each end of the lever bracket to the plate surface of the lock plate, and a base that protrudes from each end of the lever bracket and close to the base of the lower joint Provide a rod lever with an upper joint facing each other with a gap,
A receiving piece for receiving the leading end side of the lower joint, a presser piece for pressing the base side of the lower joint within an interval opposite to the upper joint, and a receiving piece by pressing the leading end side of the lower joint to the receiving piece. The lock plate includes a push-in leaf spring that sandwiches the leading end of the foot with the receiving piece, and a hook leaf spring that pushes the upper joint within the interval facing the lower joint and presses the presser piece against the base side of the lower joint. Provided,
A slide-type automobile seat characterized in that a rod lever is installed so that it can be attached later from the front end side of the upper rail after each lock plate is assembled. The top end of the lower joint is pressed against the receiving piece with a push-in plate spring, and the tip side of the lower joint is sandwiched between the receiving piece and the upper joint is pushed up by the hooking plate spring within the interval facing the lower joint. The presser piece is pressed against the base side of the lower joint, and the engagement is made by the punched hole provided on the plate surface near the tip of the upper joint and the inverted claw provided on the plate surface of the hook plate spring,
2. The slide type automobile seat according to claim 1, wherein the rod lever is provided so that it can be attached later from the front end side of the upper rail after each lock plate is assembled.

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