JPH10264685A - Slide device for automotive rear seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide device for an automotive rear seat which is not actuated by forced wrong operation to achieve excellent secureness of action. SOLUTION: A push-rod 29 interlocked with operation of a device lever 19 to be protruded forward is supported in an upward movable condition, and a forward end of the push-rod 29 protruded forward is in vertical position relation to pass above a slide lock 22 in an engagement condition to a lock groove part 11, and to be horizontally applied to an upper part of the slide lock 22 in a non-engagement condition. In this structure of utilizing the push-rod 29, transmission of operation force is secure in both pulling and feeding compared to the cases of connection by wire, and forced wrong operation, if any, will not cause other action than normal one.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle rear seat slide device.

[0002]

2. Description of the Related Art A slide device is known which allows a rear seat to freely move forward and backward through a pair of left and right slide rails on a floor in front of a luggage compartment of an automobile. The slide rail is formed by slidably combining a fixed rail fixed to the floor and a movable rail fixed to the rear seat. The distance that the rear seat can move forward and backward is determined by the length of the fixed rail.

[0003] In this type of slide device, a fixed rail of the slide rail is provided so as to extend forward from a normal seating area, and the rear seat can be moved along the fixed rail to a front cargo room enlarged area. It has become. That is, the occupant does not sit on the rear seat, and only the rear seat is slid to the frontmost position of the luggage compartment expansion area, so that the entire rear space of the rear seat can be used as a luggage compartment.

[0004] The seat back of the rear seat is supported by a reclining device via a device arm so that it can be tilted forward, and the lower back can be fixed to and released from the upper tooth of the device arm by engaging and disengaging the lower tooth.

[0005] The lower tooth is generally connected to a lock mechanism of a slide rail by a wire.
To ensure the reliability of the operation, the lower tooth can be released only when the rear seat is locked.

In other words, the operation of moving the seat back forward is difficult to perform when the rear seat is unlocked, because the rear seat is unstable. Therefore, it is necessary to securely fix the rear seat.

For this reason, conventionally, it has been impossible to simultaneously release the lock of the slide rail and the engagement of the lower tooth by an interlocking mechanism using a wire.

[0008]

However, in such prior art, although the lock of the slide rail and the disengagement of the lower tooth cannot be simultaneously performed mechanically, the slide rail is not provided. Because the locking mechanism and the means for connecting the lower tooth of the reclining device are `` wires '', if a forcible erroneous operation is performed, the outer tube itself, which is the wiring route of the wire, bends, and the internal wire moves, It is possible that a mechanism connected to the wire could be moved.

The present invention has been made by paying attention to such a conventional technique, and does not operate even if a forcible erroneous operation is performed, thereby ensuring the reliability of the operation of the rear seat of an automobile. An apparatus is provided.

[0010]

According to the first aspect of the present invention,
The rear seat can be moved forward and backward from the seating area in front of the luggage compartment to the luggage compartment enlargement area via a pair of left and right slide rails each consisting of a fixed rail and a movable rail, and the seat back is supported by the device arm of the reclining device. A lower tooth is provided to allow the front seat to be tilted forward and to engage the upper tooth of the device arm to prevent the seat back from being tilted forward.The movable rail is engaged with the fixed rail pocket with the seat back raised to load the rear seat. A stopper is provided to prevent advancement to the room enlargement area, and a lock groove for engaging the slide lock provided on the movable rail and fixing the rear seat is formed in the seating area of the fixed rail, and abuts on the lower tooth. Maintain the engagement with the upper tooth and open the lower tooth during operation. A slide device for a rear seat of an automobile provided with a device lever for detaching from a patus, wherein the push rod protruding forward interlocking with the operation of the device lever is supported movably upward and forwardly. The protruding front end of the push rod passes over the slide lock engaged with the lock groove, and is in a vertical position in which it abuts against the upper part of the slide lock in the non-engaged state from the side.

According to the first aspect of the present invention, in the stable state of the rear seat in which the slide lock is engaged with the lock groove, the front end of the push rod can pass over the slide lock, so that the device lever can be freely operated. Thus, the engagement state of the lower tooth with the upper tooth can be released, and the seat back can be moved forward. On the other hand, in an unstable state of the rear seat in which the slide lock is not engaged with the lock groove, the front end of the push rod abuts on the upper side of the slide lock from the side, so that the device lever cannot be operated, and the lower tooth is not movable with respect to the upper tooth. The engaged state cannot be released. As described above, the lower tooth disengagement and the slide lock disengagement cannot be performed at the same time, and the reliability of the operation is ensured.

In particular, because of the structure using the push rod, the operation is more reliable than in the case of connecting with a wire, and even if a forcible erroneous operation is performed, only the normal operation is performed.
Further, since the push rod is also movable upward, for example, when the seat back hits a load on the seat cushion and stops halfway forward, the device lever also stops operating. However, even in such an abnormal situation, the slide lock can be lifted together with the push rod to release the lock.

According to a second aspect of the present invention, a second lever is provided coaxially with an upper end of the device lever and is rotated forward by being pushed by a pin of the device lever. A push rod is provided at the lower end of the second lever. An urging means for connecting the rear end and urging the push rod rearward and downward is provided.

According to the second aspect of the present invention, the push rod is connected to the second lever which is moved by being pushed by the pin of the device lever, and the push rod is urged backward and downward by the urging means. The return operation after the operation of the push rod and the device lever is automatically performed by the urging means, so that the operation is easy. The urging means prevents the push rod from rattling. Furthermore, even if the device lever is strongly operated in the returning direction, it is not broken.

According to a third aspect of the present invention, the second lock groove which engages with the slide lock of the movable rail and defines the second lock position in the cargo room enlargement area is located at least on the inner side in the vehicle width direction. It is formed on a fixed rail.

According to the third aspect of the present invention, since the second lock groove engaging with the slide lock of the movable rail is formed in the fixed rail on the inner side, when the vehicle is suddenly braked, etc. Even if a strong pulling force is applied to the inner side, the slide lock finally engages with the second lock groove formed in the fixed rail on the inner side, so that the pulling force of the seat belt can be reliably received.

According to a fourth aspect of the present invention, the left and right slide locks are interlocked with each other, and the inner slide lock is engaged with the lock groove of the fixed rail earlier than the outer slide lock. To do
In addition, in a state where the inner side slide lock is engaged with the second lock groove formed on the inner side fixed rail, the outer side slide lock is disengaged, so that the front end of the push rod is engaged with the slide lock. The device lever is made to be inoperable by abutting the upper portion from the side.

According to the fourth aspect of the present invention, even if the left and right slide locks are linked, the inner side slide lock precedes the outer side slide lock with respect to the lock groove of the fixed rail. Therefore, the inner side slide lock can be engaged in the second lock groove while the outer side slide lock is in the non-engaged state. That is, it is possible to maintain both the engagement state of the inner slide lock and the non-engagement state of the outer slide lock.

According to a fifth aspect of the present invention, the left and right fixed rails each have a second lock groove portion and a frontmost lock groove portion in the cargo room enlarged area, and the second lock groove is provided below the outer fixed rail. A patch member having a convex portion having a shape matching the groove portion and the frontmost lock groove portion is attached to the surface thereof, and the second lock groove portion and the frontmost lock groove portion of the outer fixed rail are filled.

According to the fifth aspect of the present invention, by using the patch member, the outer fixed rail having no groove in the luggage compartment expansion area and the second lock groove and the foremost lock groove in the luggage compartment enlargement area are provided. Since the inner side fixed rail can be handled by one type of fixed rail,
The manufacture of fixed rails is easy.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention is shown in FIGS.
A description will be given based on FIG. In FIG. 1, the left is the front and the right is the rear.

Reference numeral 1 denotes a rear seat on the left side of the automobile.
It can move forward and backward through a pair of left and right outer slide rails 2 and inner slide rails 3 (see FIG. 2). The rear seat 1 includes a seat cushion 4 and a seat back 5, and the seat back 5 can be moved forward through a reclining device 6.

The rear seat 1 is disposed in front of the luggage compartment R, and can move forward and backward from the seating area A to the luggage compartment enlargement area B.

That is, at normal times, the rear seat 1 is slid only in the seating area A, and when the expanded luggage compartment R 'is formed, the rear seat 1 is advanced to the luggage compartment enlarging area B. I have.

In addition, regarding how to separate the seating area A and the cargo room expansion area B in FIG.
On the outer slide rail 2 side, a seating area A and a luggage compartment enlargement area B are defined on the basis of a slide lock 23 described later at an intermediate position of the rear seat 1, and a stopper described later at a front end position of the rear seat 1. 24, the seating area A and the luggage compartment expansion area B are separated.

The luggage compartment expansion area B is divided into a first area B1 and a second area B2 via a second lock position M. When there is little luggage, the front end of the rear seat 1 is stopped at the second lock position M. When there is a lot of luggage, the front end of the rear seat 1 is moved to the front end position of the luggage compartment expansion area B. The movement of the rear seat 1 in the luggage compartment expansion area B will be described later.

The two slide rails 2 and 3 are the rear seat 1
Is formed by slidably combining a pair of left and right movable rails 7 and 8 fixed to the lower surface of the vehicle and a pair of left and right fixed rails 9 and 10 fixed to the floor.

As shown in FIG. 2, a seating area A is provided on the bottom surface of the fixed rail 10 of the inner slide rail 3.
, Four lock grooves 11 are formed at predetermined intervals. Further, a second lock groove 12 and a front lock groove 13 having the same shape as the lock groove 11 are formed in the luggage compartment expansion area B in front of the second lock groove.

On the other hand, the same lock groove 11 and second lock groove 1 are also provided on the fixed rail 9 of the outer slide rail 2.
2. The foremost lock groove 13 is formed. The second lock groove 12 and the foremost lock groove 13 on the outer slide rail 2 side are respectively formed with a convex portion 14a of a resin patch member 14 provided below the fixed rail 9. Buried by

That is, the convex portion 14a has a shape (size and thickness) that matches the second lock groove portion 12 and the frontmost lock groove portion 13, and the second lock groove portion 12 and the frontmost lock groove portion 13 are formed by the convex portion 14a. The bottom surface of the fixed rail 9 is closed and has a flat surface.

Further, a pair of pockets P is added near the second lock groove 12 filled with the patch member 14. Except for the addition of the pocket P, the fixed rails 9 and 10 on the outer side and the inner side have the same shape.
0 may be press-formed, and the production of the fixed rails 9 and 10 is easy.

Next, the structure around the movable rail 7 on the outer slide rail 2 side will be described. A device arm 16 is rotatably mounted on the base of the reclining device 6 located at the rear end of the movable rail 7, and is supported by the device arm 16 so as to be supported by the seat back 5.
Can be moved forward. An upper tooth 15 having lock teeth is formed at a lower end of the device arm 16. By engaging the lower tooth 17 with the upper tooth 15, the back and forth rotation of the seat back 5 is prevented.

Although the lower tooth 17 is urged downward by the spring S 1, it is pressed by the device lever 19 toward the upper tooth 15.

The device lever 19 has pins 19a protruding on both sides of the front and back sides, and the lower teeth 17 are brought into contact with the upper teeth 15 by abutting the pins 19a downward from the inclined portions of the tips of the lower teeth 17. I'm pushing.

The device lever 19 has a second lever 1 whose upper end is supported coaxially with the device lever 19.
8 are provided. This second lever 18
The device lever 19 has a bent shape and is pushed forward by the pin 19a of the device lever 19 to rotate forward.

The rear end of the push rod 29 is connected to the lower end of the second lever 18. The push rod 29 is supported by a long hole 28 of a support bracket 27 fixed to the movable rail 7 at a position near the front end. This long hole 28 is long in the vertical direction,
9 can be moved upward.

Between the push rod 29 and the lower movable rail 7, there is provided a spring S2 as "biasing means" for pulling the push rod 29 obliquely rearward and downward.

On the other hand, below the front end of the push rod 29 on the movable rail 7, there is provided a slide lock 22 which is pushed up via an action lever 21 when the operation lever 20 is pulled up.

The lower end of the slide lock 22 is engaged with the lock groove 11. A similar slide lock 23 is also provided on the inner slide rail 3 side (see FIG. 9), and both are linked by a connecting rod (not shown).

However, a phase difference d in the vertical direction is provided between the two slide locks 22 and 23 via a slotted idle rotation mechanism (not shown), and the inner slide lock 23 is locked first. After engaging in the groove 11, the outer side slide lock 22 starts engaging with the lock groove 11.

A stopper 2 whose front end is urged downward by a spring (not shown) is provided at the front end of the movable rail 7.
4 are provided. The stopper 24 is provided between the upper tooth 15 and the wire 2 inserted into the outer tube.
6 are connected. A bell crank 25 is provided in the middle of the wire 26, and the push / pull of the wire 26 is converted by the bell crank 25.

Next, the operation of this embodiment will be described mainly with reference to FIGS.

Operation of the slide lock 22 in the non-engaged state in the seating area A (see FIG. 3): In a normal state in the seating area A, since the occupant is seated, the seat back 5 is in the raised state. Has become. Accordingly, the wire 26 is in a loosened state, and the stopper 24 slides back and forth in a state in which the stopper 24 abuts against the bottom surface of the fixed rail 9 by its own urging force. Stopper 2 in seating area A
4, there is no pocket P that can be engaged with the slide locks 22, 23 during the forward movement.
1 and the position of the rear seat 1 is fixed there.

The slide locks 22 and 23 are the lock grooves 1
In a state before the engagement of the rear seat 1 (the state of FIG. 3), the slide lock 22 is in the non-engagement state, and the rear seat 1 is in an unstable state in which it can move back and forth. Therefore, in this state, the device lever 19 is pulled up, and the lower tooth 17
Even if an attempt is made to release the engagement state of the device lever 19 with the upper tooth 15, the push rod 29 protruding forward with the pulling up of the device lever 19 abuts against the upper part of the slide lock 22 from the side, so that the device lever 19 cannot be operated. The lower tooth 17 cannot be disengaged. In this manner, the seat back 5 cannot be moved forward in an unstable state where the slide locks 22 and 23 are in the disengaged state, and the reliability of the operation is ensured.

Operation when the slide lock 22 is engaged in the seating area A (see FIG. 4): As the rear seat 1 advances in the seating area A, the slide locks 22, 2
3 engages with the lock groove 11. Then, since the position of the slide lock 22 is lowered, when the device lever 19 is pulled up, the push rod 29 passes above the slide lock 22 and the engagement of the lower tooth 17 can be released. Thus, in the stable state in which the slide locks 22 and 23 are engaged, the seat back 5 can be moved forward.

Further, the push rod 29 is pushed by the pin 19a of the device lever 19 to move the second lever 18 which is moved.
And the push rod 29 is urged backward and downward by the spring S2, so that the return operation after the operation of the push rod 29 and the device lever 19 is automatically performed by the spring S2, and the operation is easy. is there. Further, rattling of the push rod 29 is prevented by the spring S2. Further, even if the device lever 19 is strongly operated in the returning direction, the device lever 19 is not broken because the second lever 18 is interposed therebetween.

An abnormal forward movement of the seat back 5 due to the load N (see FIG. 5): When the seat back 5 is moved forward,
When the seat back 5 hits the load N on the seat cushion 4 and stops at a halfway rotation position, the lower tooth 17
Becomes half-locked with respect to the upper tooth 15,
The push rod 29 remains projecting forward and its front end continues to be located above the slide lock 22. In this state, it is inconvenient if the slide lock 22 cannot be released. Therefore, in the structure of this embodiment, the slide lock 22 is
9 can be moved upward.

Operation at starting point of luggage compartment expansion area B (see FIG. 6): Raise slide locks 22 and 23 and move rear seat 1
Is further advanced, at the start point of the luggage compartment enlarged area B, the stopper 24 on the outer side falls into the pocket P and engages. At this time, the slide locks 22 and 23 also engage in the corresponding lock grooves 11. Since the further forward movement of the rear seat 1 is prevented by the engagement of the stopper 24 and the pocket P, the occupant knows that it is the starting point of the luggage compartment expansion area B. In a stable state in which the slide locks 22 and 23 are engaged in the corresponding lock grooves 11, the device lever 19 is operated to release the engagement between the lower tooth 17 and the upper tooth 15 and to tilt the seat back 5 forward. it can.

Operation for entering the luggage compartment expansion area B (see FIG. 7): If the stopper 24 is still engaged with the pocket P, the rear seat 1 cannot be further advanced, so the seat back 5 is moved forward. The wire 26 is pulled, the pulling force is converted into a pushing force via the bell crank 25, and the front end of the stopper 24 is lifted to remove the pocket P.
Release the engagement with. Thereafter, the operation lever 20 is operated to disengage the slide locks 22 and 23, and the rear seat 1 is caused to enter the luggage compartment enlarged area B.

In the outer slide rail 2, the second lock groove 12 of the fixed rail 9 and the front lock groove 1
Since 3 is closed by the patch member 14 and has a flat surface, the outer side slide lock 22 has no partner to be engaged, and always remains in the non-engaged state (lifted state). . When the slide lock 22 is disengaged, the front end of the push rod 29 abuts on the upper part of the slide lock 22 from the side, so that the device lever 19
Cannot be operated, and the engaged state of the lower tooth 17 is maintained. Therefore, in the luggage compartment expansion area B, the forward leaning state of the seat back 5 is reliably maintained, and even if an occupant tries to sit on the rear seat 1 in the luggage compartment expansion area B, it cannot be done.

On the other hand, since the slide lock 23 on the inner slide rail 3 has a phase difference d that precedes the slide lock 22 on the outer side, even if the slide lock 22 on the outer side is disengaged. The inner side slide lock 23 can be engaged into the second lock groove 12. The engagement between the inner side slide lock 23 and the second lock groove 12 allows the rear seat 1 to be locked at the second lock position M in the luggage compartment enlargement area B, thereby coping with a case where the load is small. The engagement between the slide lock 23 and the second lock groove 12 can be released by lifting the operation lever 20, and the slide lock 23 can be further advanced to be engaged with the foremost lock groove 13. In the state where the slide lock 23 is engaged with the forefront lock groove 13, a luggage compartment R 'which is maximized is formed at the rear of the rear seat 1, so that a large amount of cargo can be loaded.

When returning the rear seat 1 to the seating area A, the operation lever 20 is lifted and the slide lock 23 is lifted.
Can be pulled out from the front lock groove 13 and slid backward in that state. Rear seat 1 in seating area A
When the vehicle is returned, for example, in the event of a frontal collision of an automobile, a strong pulling force is applied to a buckle provided on the inner side of the rear seat 1 from a seat belt (not shown), and the slide locks 22 and 23 are locked by the lock grooves 11.
The second lock groove 12 is formed on the inner side fixed rail 10 to which the force from the seat belt is particularly applied even if the second lock groove 1 is removed.
2, the slide lock 23 is engaged, and the pulling force from the seat belt can be reliably received.

In the above description, an example is shown in which the left and right slide locks 22 and 23 are interlocked and the phase difference d is provided between them. It may be made to move independently.

[0054]

According to the first aspect of the present invention, in the stable state of the rear seat in which the slide lock is engaged with the lock groove, the front end of the push rod can pass over the slide lock, so that the device lever can be freely moved. By operating the lower tooth, the engagement state of the lower tooth with the upper tooth can be released, and the seat back can be moved forward. On the other hand, in an unstable state of the rear seat in which the slide lock is not engaged with the lock groove, the front end of the push rod abuts on the upper side of the slide lock from the side, so that the device lever cannot be operated, and the lower tooth is not movable with respect to the upper tooth. The engaged state cannot be released. As described above, the lower tooth disengagement and the slide lock disengagement cannot be performed at the same time, and the reliability of the operation is ensured.

In particular, because of the structure using the push rod, the operation is more reliable than in the case of connecting with a wire, and even if a forcible erroneous operation is performed, only the normal operation is performed.
Further, since the push rod is also movable upward, for example, when the seat back hits a load on the seat cushion and stops halfway forward, the device lever also stops operating. However, even in such an abnormal situation, the slide lock can be lifted together with the push rod to release the lock.

According to the second aspect of the present invention, the push rod is connected to the second lever which is pushed by the pin of the device lever, and the push rod is urged backward and downward by the urging means. The return operation after the operation of the push rod and the device lever is automatically performed by the urging means, so that the operation is easy. The urging means prevents the push rod from rattling. Furthermore, even if the device lever is strongly operated in the returning direction, it is not broken.

According to the third aspect of the present invention, the second lock groove for engaging with the slide lock of the movable rail is formed in the fixed rail on the inner side. Even if a strong pulling force is applied to the inner side, the slide lock finally engages with the second lock groove formed in the fixed rail on the inner side, so that the pulling force of the seat belt can be reliably received.

According to the fourth aspect of the present invention, even when the left and right slide locks are linked, the inner side slide lock precedes the outer side side slide lock with respect to the lock groove of the fixed rail. Therefore, the inner side slide lock can be engaged in the second lock groove while the outer side slide lock is in the non-engaged state. That is, it is possible to maintain both the engagement state of the inner slide lock and the non-engagement state of the outer slide lock.

According to the fifth aspect of the present invention, by using the patch member, the outer side fixed rail having no groove in the luggage compartment expansion area, and the second lock groove and the foremost lock groove in the luggage compartment enlargement area. Since the inner side fixed rail can be handled by one type of fixed rail,
The manufacture of fixed rails is easy.

[Brief description of the drawings]

FIG. 1 is a side view showing a movement range of a rear seat according to an embodiment of the present invention.

FIG. 2 is a plan view showing a bottom surface portion of an outer and inner fixed rails.

FIG. 3 is a side view showing the rear seat in a seating area.

FIG. 4 is a side view corresponding to FIG. 3, showing a state in which a slide lock is engaged with a lock groove.

5 is a side view corresponding to FIG. 4, showing a state where the slide lock is raised together with the push rod.

FIG. 6 is a diagram showing a state at the start point of the luggage compartment expansion area.
A considerable side view.

FIG. 7 is a side view corresponding to FIG. 6, showing a state where the seat back is moved forward.

FIG. 8 is a perspective view showing the outer peripheral structure of a slide lock.

FIG. 9 is a side view showing a phase difference between an outer side slide lock and an inner side slide lock.

FIG. 10 is a perspective view showing a fixed rail and a patch member on the outer side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear seat 2 Outer slide rail 3 Inner slide rail 5 Seat back 6 Reclining device 7, 8 Movable rail 9, 10 Fixed rail 11 Lock groove part 12 Second lock groove part 13 Front lock groove part 14 Patch member 15 Upper tooth 16 Device arm 17 Lower tooth 18 Second lever 19 Device Lever 19a Pin 22, 23 Slide Lock 24 Stopper 28 Long Hole 29 Push Rod A Seating Area B Loading Room Expansion Area R Loading Room R 'Expanded Loading Room S2 Spring (Biasing Means) M Second Lock Position P Pocket d Phase difference

 ──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Kazunori Hashimoto 3-2-1, Matsubara-cho, Akishima-shi, Tokyo Inside Tachi-S Co., Ltd. (72) Shozo Muraishi 3-2-1, Matsubara-cho, Akishima-shi, Tokyo Co., Ltd. Inside Tachi-S

Claims (5)

[Claims] A rear seat can be moved forward and backward from a seating area in front of a luggage compartment to an enlarged luggage compartment area via a pair of left and right slide rails each comprising a fixed rail and a movable rail. A lower tooth is provided for supporting the arm so that it can be tilted forward, and engaging the upper tooth of the device arm to prevent the seat back from falling forward. The movable rail is provided with a pocket for the fixed rail in a state where the seat back is raised. A stopper is provided to prevent the rear seat from advancing to the cargo room enlarged area, and a lock groove for engaging the slide lock provided on the movable rail to fix the rear seat is provided on the fixed rail. Formed in the seating area, abutting on the lower tooth and on the upper tooth A device lever for maintaining the engaged state and releasing the lower tooth from the upper tooth during operation, comprising: a push rod that projects forward in conjunction with the operation of the device lever. A front end of the push rod, which is supported so as to be able to move upward and projects forward, passes over the slide lock engaged with the lock groove and laterally with respect to the top of the disengaged slide lock. A sliding device for a rear seat of an automobile, wherein the sliding device is in a vertical positional relationship in contact with the vehicle. 2. The sliding device for a vehicle rear seat according to claim 1, further comprising a second lever supported at the upper end thereof coaxially with the device lever and rotated forward by being pushed by a pin of the device lever. A slide device for a rear seat of an automobile, wherein a rear end of a push rod is connected to a lower end of a lever, and an urging means for urging the push rod rearward and downward is provided. 3. The slide device for a vehicle rear seat according to claim 1, wherein the second lock groove portion that engages with the slide lock of the movable rail and defines a second lock position in the luggage compartment enlarged area is provided. A sliding device for a rear seat of an automobile, wherein the sliding device is formed on a fixed rail on an inner side located at least inward in a vehicle width direction. 4. The slide device for a vehicle rear seat according to claim 3, wherein the left and right slide locks are interlocked with each other, and the inner side slide lock is a lock groove portion of the fixed rail than the outer side slide lock. And the outer side slide lock is disengaged while the inner side slide lock is engaged with the second lock groove formed in the inner side fixed rail. A slide device for an automobile rear seat, wherein a front end of a push rod is brought into contact with an upper portion of a slide lock from a side to make a device lever inoperable. 5. The sliding device for an automobile rear seat according to claim 4, wherein the left and right fixed rails each have a second lock groove portion and a frontmost lock groove portion in the luggage compartment enlarged area, and are fixed rails on the outer side. At the lower side, a patch member having a convex portion having a shape corresponding to the second lock groove portion and the foremost lock groove portion formed on the surface is attached, and the second lock groove portion and the foremost lock groove portion of the fixed rail on the outer side are filled. A sliding device for automobile rear seats.