JP6882671B2 - Seat rail device - Google Patents

Description

The present invention relates to a seat rail device including a front-rear slide rail that enables the seat to move in the front-rear direction of the vehicle and a lateral slide rail that allows the seat to move in the lateral direction.

Patent Document 1 discloses a seat rail device including a front-rear slide rail that allows the seat to move in the front-rear direction of the vehicle and a lateral slide rail that allows the seat to move in the lateral direction. In Patent Document 1, the horizontal slide rail is arranged on a base frame provided on the front and rear slide rails.

Japanese Unexamined Patent Publication No. 2008-285098

In Patent Document 1, since the horizontal slide rail is exposed and mounted on the base frame, it is considered that the peel strength of the horizontal slide rail is low.

An object of the present invention is to provide a seat rail device in which a function of preventing peeling is added to a support mechanism.

The seat rail device according to the present invention includes a pair of front-rear slide rails (110) that make the seat movable in the front-rear direction of the vehicle, a pair of horizontal slide rails (10) that make the seat movable in the lateral direction, and the above. A pair of risers (80) for supporting the lateral slide rail are provided on the front and rear slide rails. The horizontal slide rail has a lock claw (52a) that locks the seat at a predetermined position in the lateral direction, and the riser includes a metal wall (82, 84) on the metal wall (82, 84). A U-shaped notch (82a, 84a) is provided, the lateral slide rail 10 is housed in the U-shaped notch (82a, 84a), and the lock claw is housed in the metal wall (82a, 84a). It is held in the position corresponding to.

In the seat rail device of the present invention, since the horizontal slide rail is housed in the U-shaped notch provided in the metal wall of the riser constituting the support mechanism, the horizontal slide rail opens due to the impact at the time of a vehicle collision. This can be suppressed by the wall surface of the notch, and the peeling strength of the horizontal slide rail can be increased.

In the configuration of claim 2, since the horizontal slide rail is arranged in the U-shaped notch provided in the metal wall constituting the riser and in the reinforcing metal fitting having a cross-section box shape, the vehicle It is possible to suppress the opening of the lateral slide rail due to the impact at the time of a collision and increase the peeling strength of the lateral slide rail.

In the configuration of claim 3, since the reinforcing metal fittings are arranged between the pair of metal walls constituting the riser to reduce the load on the side wall of the notch, the lateral slide rail opens due to the impact at the time of a vehicle collision. It can be suppressed and the peeling strength of the horizontal slide rail can be increased.

In the configuration of claim 4, the riser is provided with a reinforcing member having a side wall that is in contact with the outside of the metal wall on both sides of the riser and has a U-shaped notch that surrounds the lower portion of the U-shaped notch. The U-shaped notch is reinforced, the opening of the horizontal slide rail is suppressed by the side surface of the notch, and the peeling strength of the horizontal slide rail can be increased.

Sectional drawing of the horizontal slide rail which concerns on embodiment of this invention. The perspective view of the lock member of the horizontal slide rail of an embodiment. The perspective view of the component part of the lock member of the horizontal slide rail of an embodiment. The front view of the horizontal slide rail which concerns on embodiment. A side view of the horizontal slide rail of the embodiment. Top view of the horizontal slide rail of the embodiment. The plan view of the seat rail device which concerns on embodiment.

FIG. 7 is a plan view of the seat rail device according to the embodiment.
The seat rail device 100 is fixed to the vehicle floor and has a pair of front and rear slide rails 110 and 110 that allow the vehicle seat (not shown) to move in the front-rear direction of the vehicle and a pair of lateral slide rails that allow the seat to move in the left-right direction. 10, 10 and a pair of risers 80, 80 that support the lateral slide rail 10 on the front-rear slide rail 110 are provided. The lower rail 130 of the front-rear slide rail 110 is fixed to the vehicle floor, and the riser 80 is fixed to the upper rail 120 which is slidably supported in the vehicle front-rear direction with respect to the lower rail 130.

FIG. 6 is a plan view of the horizontal slide rail 10 and the riser 80. FIG. 5 is a side view of the horizontal slide rail 10 and the riser 80, and corresponds to the X arrow view in FIG. FIG. 4 is a front view of the horizontal slide rail 10 and the riser 80, and corresponds to the Y arrow view in FIG.

FIG. 1 is a cross-sectional view taken along the line y1-y1 of the horizontal slide rail 10 in FIG. FIG. 1 (A) shows a locked state, and FIG. 1 (B) shows an unlocked state.
The lower rail 30 has a bottom wall 32 substantially horizontal to the vehicle body, a standing wall 33 standing upward from both ends of the bottom wall 32, and a brim provided substantially parallel to the bottom wall 32 toward the center from the upper end of the compatible wall 33. A portion 34 and a hanging wall 35 that hangs from the terminals of both flange portions 34 toward the bottom wall 32 and substantially parallel to the standing wall 33 are provided. The collar portion 34 and the hanging wall 35 form a first L-shaped portion (34, 35). One hanging wall 35 of the lower rail 30 is provided with a first opening 35a so as not to come into contact with the lock claw 52a of the lock member 50 in the locked state. The lateral slide rail 10 is formed so that the vehicle seat can be locked at two positions, the right end position directly above the front and rear slide rails 110 and 110, and the left end position where the vehicle seat moves to the left as much as possible. The opening 35a is arranged so that it can be locked at the right end position and the left end position.

The upper rail 20 has an upper wall 21 to which a vehicle seat is attached via bolts 96 and faces the bottom wall 32 of the lower rail 30, a hanging wall 22 hanging from both ends of the upper wall 21, and both hanging walls 22. It is provided with an extending portion 23 extending outwardly from the lower end of each of the above, bending and extending, and an upright wall 25 standing upward from the extending portion. The extending portion 23 and the standing wall 25 form a second L-shaped portion (23, 25). The second L-shaped portion (23, 25) is surrounded by the first L-shaped portion (34, 35) of the lower rail 30. At the upper end of the upright wall 25, an inclined portion 24 for holding the first steel ball 41 of the retainer 40 in the space between the upright wall 25 and the lower rail 30 is provided. Further, the hanging wall 22 is provided with a second opening 22a so as not to come into contact with the lock claw 52a as in the case of the first opening 35a.

In the upper rail 20 and the lower rail 30, the upper wall 21 of the upper rail 20 faces the bottom wall 32 of the lower rail 30, and the inclined portion 24 of the upper rail 20 enters the space between the standing wall 33 and the hanging wall 35 of the lower rail 30. Is located in. The first steel ball 41 of the retainer 40 is arranged between the corner portion between the standing wall 33 of the lower rail 30 and the flange portion 34 and the inclined portion 24 of the upper rail 20, and the bottom wall 32 and the standing wall 33 of the lower rail 30 are arranged. The second steel ball 42 of the retainer 40 is arranged between the corner portion between the two and the extending portion 23 of the upper rail. The first steel ball 41 and the second steel ball 42 held by the retainer 40 allow the upper rail 20 and the lower rail 30 to slide relatively in the lateral direction of the vehicle.

The lock member 50 is a lock mechanism for fixing (locking) the upper rail 20 and the lower rail 30 so as to be relatively immovable. The lock member 50 is rotatably (displaced) around a shaft 56 with respect to a support bracket 58 fixed to the bottom wall 32 of the lower rail 30 by a rivet or the like, and the lower rail 30 responds to this rotation. A lock claw 52a that engages with and disengages from the first opening 35a of the above is formed. Further, the lock member 50 is constantly urged by the lock spring 54 provided on the shaft 56 in the direction in which the lock claw 52a is inserted into the second opening 22a of the upper rail 20.

FIG. 2 is a perspective view of the lock member 50, and FIG. 3 is a perspective view of the components of the lock member 50.
The lock member 50 includes a lock lever 52 provided with a lock claw 52a, a shaft 56 for rotating the lock lever 52, a support bracket 58 for supporting the shaft 56, and a lock for urging the lock lever in the lock direction. It consists of a spring 54. The support bracket 58 is provided between the first standing wall 58a provided with the through hole 58aa for supporting the shaft 56, the second standing wall 58b provided with the through hole 58ba, and the upper part of the first standing wall 58a and the second standing wall 58b. From the connecting portion 58c, the first bottom wall 58d which is provided in the sliding direction from the bottom of the first standing wall 58a and is fixed in contact with the bottom wall 32 of the lower rail 30, and the bottom of the second standing wall 58b. From the second bottom wall 58e, which is provided in the opposite direction of the first bottom wall 59d and for contacting and fixing the bottom wall 32 of the lower rail 30, and the opposite end of the second standing wall 58b of the second bottom wall 58e. It is provided with a third standing wall 58f that stands up and is formed so as to provide a slight clearance between the hanging walls 22 of the upper rail 20 as shown in FIG.

The lock lever 52 includes a lock claw 52a provided at the opposite end of the lever portion 52d and the lever portion 52d, support pieces 52b and 52c provided at both ends of the lever portion 52d in the sliding direction, and a shaft 56 on the support piece 52b. It is composed of an opening 52ba provided for inserting the shaft 56 and an opening 52ca provided for inserting the shaft 56 into the support piece 52c. As shown in FIG. 1 (A), the lever portion 52d is bent at an obtuse angle in a U-shape at the center. The lock claw 52a is bent at an acute angle and is formed so as to face the rear of the vehicle and diagonally downward in the locked state. The lock claw 52a is urged by the lock spring 54 in the locking direction shown in FIG. 1 (A), and as shown in FIG. 1 (B), the lock lever 52 is operated to center the shaft 56 in the drawing. It is rotated counterclockwise to release the locked state. As shown in FIG. 2, the lock claw 52a is composed of two claws. The first opening 35a and the second opening 22a through which the lock claw 52a described above is inserted with reference to FIG. 1 are composed of a pair of openings into which two claws are inserted. As shown in FIGS. 4 and 7, the lateral slide rail 10 includes a box-shaped reinforcing metal fitting 92 having a slit 92a formed in the upper surface 92U along the sliding direction, and a slit 94a in the upper surface 94U along the sliding direction. It is provided in the reinforcing metal fitting 94 having a box-shaped cross section formed by the above.

As shown in FIGS. 4, 5 and 7, the riser 80 is a single metal plate including both side portions constituting a pair of metal walls 82, 84 and a central portion 86 existing between the both side portions. Consists of. The metal wall 82 is provided with a U-shaped notch 82a, and the metal wall 84 is provided with a U-shaped notch 84a having the same shape as the notch 82a and showing only the arrangement position in FIG. 7. The box-shaped reinforcing metal fittings 92 and 94 accommodating the horizontal slide rail 10 are housed in the notch 82a of the metal wall 82 and the U-shaped notch 84a of the metal wall 84, and are housed in the bottom wall of the reinforcing metal fitting 92. The 92b and the bottom wall 94b of the reinforcing metal fitting 94 are fixed to the central portion 86 of the riser 80. As shown in FIG. 4, a reinforcing member 70 for reinforcing the riser is provided below the U-shaped notch 82a. As shown in FIG. 5, the reinforcing member 70 has a central portion 76 facing the central portion 86 of the riser, and a pair of side walls 72, 74 in contact with the outer sides of the metal walls 82, 84 on both sides of the riser. .. Then, the U-shaped notch 72a surrounding the lower portion of the U-shaped notch 82a of the riser 80 shown in FIG. 4 is placed on the side wall 72 only at the arrangement position in FIG. 7 having the same shape as the U-shaped notch 72a. The U-shaped notch 74a shown is provided on the side wall 74.

As described above with reference to FIG. 4, in the seat rail device 100 of the embodiment, a small clearance is interposed in the hanging walls 22 and 22 of the upper rail 20 of the lateral slide rail 10 so as to be a component of the lock mechanism. A third standing wall 58f of a support bracket 58 is provided. Therefore, due to the impact at the time of a vehicle collision, the hanging walls 22 and 22 facing each other of the upper rail are deformed so as to approach each other to prevent the lower rail from coming off from the upper rail, and the peeling strength of the seat rail device is used by using the lock function. Can be enhanced.

As shown in FIGS. 5 and 6, the third standing wall 58f of the support bracket 58 described above is provided corresponding to the left end portion 30L of the lower rail 30. In the seat rail device of the embodiment, since the third standing wall 58f is provided at a position corresponding to the end portion 30L of the lower rail 30 which is most vulnerable to stress and is easily deformed, the peel strength of the seat rail device can be increased.

As described above with reference to FIG. 1, in the seat rail device of the embodiment, since the lock claw 52a, which is a component of the lock mechanism, is provided so as to face diagonally downward to the rear of the vehicle, it is fixed to the seat in the event of a vehicle collision. A load is applied to the upper rail diagonally above the front of the vehicle, but this load makes it difficult for the lock claws to come off. Therefore, the peeling strength of the seat rail device can be increased by using the lock function.

As shown in FIG. 6, the lateral slide rail 10 is housed in the U-shaped notches 82a, 84a of the metal walls 82, 84 of the riser 80. The lock claw 52a is held at a position corresponding to the metal wall 84.

In the seat rail device of the embodiment, since the horizontal slide rail 10 is housed in the U-shaped notches 82a and 84a provided in the metal walls 82 and 84 constituting the riser 80, the horizontal slide rail 10 is laterally affected by an impact at the time of a vehicle collision. The opening of the slide rail 10 is suppressed by the side surfaces 82aa and 84aa of the cutouts 82a and 84a, and the peeling strength of the lateral slide rail can be increased by using the riser 80 constituting the support mechanism.

Further, the horizontal slide rail 10 is arranged in the U-shaped notches 82a, 84a provided in the metal walls 82, 84 constituting the riser 80, and in the reinforcing metal fittings 92, 94 having a box-shaped cross section. Therefore, it is possible to prevent the seat rail device from opening due to an impact at the time of a vehicle collision and to increase the peeling strength of the lateral slide rail.

10 Horizontal slide rail 20 Upper rail 21 Upper wall 22 Hanging wall 22a Second opening 30 Lower rail 32 Bottom wall 33 Standing wall 35a First opening 50 Lock member 52a Lock claw 56 Shaft 58 Support bracket 58f Third standing wall 70 Reinforcing member 80 Riser 82, 84 Metal wall 82a, 84a Notch 92 Reinforcing metal fittings

Claims (6)

A pair of front-rear slide rails that allow the seat to move in the front-rear direction of the vehicle, a pair of horizontal slide rails that allow the seat to move laterally, and a pair of risers that support the horizontal slide rail on the front-rear slide rail. It is a seat rail device equipped with
The lateral slide rail has a locking claw that locks the seat in a predetermined position in the lateral direction, and the riser includes a metal wall.
A U-shaped notch is provided in the metal wall,
The lateral slide rail is housed in the U-shaped notch, and the lock claw is held at a position corresponding to the metal wall. The seat rail device according to claim 1.
Transverse slide side is formed of a slit along the direction cross-section box-shaped metal fitting is provided in the U-shaped cut in the outs on the upper surface,
The horizontal slide rail is arranged in the reinforcing metal fitting. The seat rail device according to claim 2.
The riser is composed of a single metal plate including both side portions forming a pair of the metal walls and a central portion existing between the both side portions, and is on the central portion to form a pair of the metal walls. The reinforcing metal fittings are arranged between both side portions. The seat rail device according to claim 3.
A U-shape having a central portion of the riser facing the central portion and a pair of side walls on both sides of the riser that are in contact with the outside of the metal wall, and surrounding the lower portion of the U-shaped notch on the side wall. A reinforcing member provided with a notch is provided on the riser. The seat rail device according to claim 1.
The front and rear slide rails consist of a lower rail and an upper rail.
The riser is fixed to the upper rail. The seat rail device according to claim 1.
The lock claws are provided on the pair of lateral slide rails, respectively.
One of the pair of risers corresponds to the lock claw of the pair of lateral slide rails.

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