JP6987628B2 - Seat device - Google Patents

Description

The present invention has a seat having a seat back that supports the back of the seat, a lower rail provided on the floor side, and a slide rail consisting of an upper rail that is movably engaged with the lower rail and is provided with the seat. Regarding seat equipment.

As for the seat device provided in the vehicle, a seat device that can slide further beyond the normal slide range has been proposed. In the present specification, the normal slide area is referred to as a normal slide area, and the slide area beyond the normal slide area is referred to as a long slide area.
In such a seat device, a stopper that can come into contact with the upper rail is provided, and usually the seat slide is performed in the slide region, and the stopper is retracted so that the seat can be slid to the long slide region. (See Patent Document 1).

Japanese Patent No. 5073320

However, in the seat device described in Patent Document 1, the stopper is always urged by the urging member in the direction of contacting the upper rail, and the seat slide to the long slide region is restricted. To lift this regulation, the stopper is manually moved against the urging force of the urging member. That is, while the seat can be slid to the long slide region, it is necessary to continue to move the stopper manually against the urging force of the urging member, which causes a problem of poor operability.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a seat device having good operability.

In order to realize at least one of the above-mentioned problems, the seat device reflecting one aspect of the present invention includes a seat having a seat back that supports the back of the seat, a lower rail provided on the floor side, and the lower rail. A seat device comprising a slide rail comprising an upper rail movably engaged with and provided with the seat, which is provided on either side of the lower rail or the upper rail and is either the lower rail or the upper rail. A stopper provided so as to be movable at a position where the other can be contacted and a position where the stopper cannot be contacted, and when the stopper is at the position where the other can be contacted, the stopper is directed toward the position where the stopper can be contacted. stopper have a turnover spring and consists of a slide stopper mechanism for biasing said to abutment impossible position direction when in the other and the abutting non-position, the stopper is provided on the lower rail side The turnover spring is provided on the provided base, and is characterized in that the turnover spring is provided between the stopper and the base.

Other features of the invention will become more apparent from the embodiments and accompanying drawings for carrying out the invention described below.

According to the seat device of the present invention, the seat device is provided on either side of the lower rail or the upper rail, and is movably provided at a position where it can come into contact with either the lower rail or the upper rail and a position where it cannot come into contact with the other. When the stopper is in a position where the stopper can be in contact with the other, the stopper cannot be in contact with the stopper, and when the stopper is in a position where the stopper cannot be in contact with the other, the stopper cannot be in contact. By having a slide stopper mechanism consisting of a turnover spring that urges in a certain position direction, if the stopper moves to a position where it can or cannot contact the rear end of the upper rail, the turnover spring will be used. When the other is in a position where it can be in contact with the other, it is urged toward the position where it can be in contact, and when the stopper is in a position where it cannot be in contact with the other, it is urged in the direction in which it cannot be in contact. To.

Therefore, it is not necessary to keep moving the stopper against the urging force of the urging member by hand, and the operability is good.
Other effects of the invention will become even more apparent from the embodiments and accompanying drawings for carrying out the invention described below.

It is an exploded perspective view of the unlocking device. It is the F direction arrow view of FIG. 1, and is the figure which shows the state which the operation lever is not operated at the time of parking. It is the R direction arrow view of FIG. 1, and is the figure which shows the state which the operation lever is not operated at the time of parking. It is the F direction arrow view of FIG. 1, and is the figure which shows the state which the operation lever is operated at the time of parking. It is the R direction arrow view of FIG. 1, and is the figure which shows the state which the operation lever is operated at the time of parking. It is the F direction arrow view of FIG. 1, and is the figure which shows the state which the operation lever is not operated except at the time of parking. It is the R direction arrow view of FIG. 1, and is the figure which shows the state which the operation lever is not operated except at the time of parking. It is the F direction arrow view of FIG. 1, and is the figure which shows the state which the operation lever is operated except when parking. FIG. 1 is an arrow view in the R direction, showing a state in which the operation lever is operated except when parking. It is a block diagram explaining the electrical structure of an unlocking device. It is an exploded perspective view of a slide stopper mechanism. It is the F direction arrow view of FIG. 11, and is the figure which shows the state at the time of parking. It is the R direction arrow view of FIG. 11, and is the figure which shows the state at the time of parking. It is the F direction arrow view of FIG. 11, and is the figure which shows the state other than the time of parking. FIG. 11 is an arrow view in the R direction of FIG. 11 and is a diagram showing a state other than when parked. It is a block diagram which shows the whole structure of the seat device of an embodiment.

An embodiment will be described with reference to the drawings.
First, the overall configuration of the seat device of the present embodiment will be described with reference to FIG. FIG. 16 is a configuration diagram showing the overall configuration of the seat device of the present embodiment.
In the figure, the seat 1 includes a seat cushion 3 that supports the buttocks of the seated person, and a seat back 5 that is provided so as to be tilted forward / backward with respect to the seat cushion 3 and supports the back of the seated person.

On the floor F, a pair of lower rails (outer lower rails provided on the outside of the vehicle, inner lower rails provided on the inner side of the vehicle) 7 and a pair of upper rails (outer) movably engaged with the lower rails 7 and provided with a seat 1 are provided. A pair of slide rails (outer slide rail, inner slide rail) 11 including lower rail (lower rail, inner lower rail) 9 is provided.

Further, each slide rail 11 is provided with a seat slide lock device (outer slide lock device, inner slide lock device) 13 for locking / unlocking the movement of the upper rail 9.
The seat slide lock device is normally in a locked state in which movement of the upper rail 9 is prohibited by an urging force such as a spring.

In the seat device of the present embodiment, the seat back 5 located behind the seat 1 is provided with an unlocking device 21 for unlocking the seat slide locking device 13 and a handle 22 for the unlocking device 21. ..
Further, the seat device of the present embodiment is a seat device that can slide beyond the normal slide range NS to the long slide area LS. The seat slide rail 11 is provided with a slide stopper mechanism 101 having a stopper capable of contacting the upper rail 9, and is usually used as a seat slide in the normal slide area NS, and is long by retracting the stopper of the slide stopper mechanism 101. The sheet can be slid to the slide area LS.
(Unlocking device 21)
The unlocking device 21 will be described with reference to FIGS. 1 to 10. 1 is an exploded perspective view of the unlocking device, FIG. 2 is an arrow view in the F direction of FIG. 1, showing a state in which the operation lever is not operated when parking, and FIG. 3 is an arrow in the R direction of FIG. FIG. 4 is a view showing a state in which the operation lever is not operated when parking, and FIG. 4 is a view showing an arrow in the F direction of FIG. 1 showing a state in which the operation lever is operated when parking. 5 is an arrow view in the R direction of FIG. 1, showing a state in which the operation lever is operated during parking, and FIG. 6 is an arrow view in the F direction of FIG. 1, except when parking. FIG. 7 is a view showing a state in which the operation lever is not operated, FIG. 7 is an arrow view in the R direction of FIG. 1, a view showing a state in which the operation lever is not operated except when parking, and FIG. 8 is F in FIG. It is a direction arrow view and shows a state in which the operation lever is operated except when parking, and FIG. 9 is an R direction arrow view of FIG. 1 in which the operation lever is operated except when parking. FIG. 10 is a diagram showing a state, and FIG. 10 is a block diagram illustrating an electrical configuration of the unlocking device.

First, the unlocking device 21 will be described with reference to FIG.
A motor 27 is attached to the back surface of the base 23 by using two screws 25 for inserting the two holes 23a provided in the base 23. An elongated hole 28a is formed on the rotating end side of the arm 28 provided on the output shaft of the motor 27.

Further, two holes 23b for attaching to the frame of the seat back 5 are formed in the base 23, and a square nut 29 is welded to the holes 23b.
The base 23 is formed with grooves 23c, 23d, and 23e for locking the three outer cables.

The cable 31 composed of the inner cable 31a and the outer cable 31b covering the inner cable 31a transmits the movement of the handle 22 to a lever described later, and the outer cable 31b is locked in the groove 23c.
The cable 33 composed of the inner cable 33a and the outer cable 33b covering the inner cable 33a transmits the movement of the link described later to the seat slide lock device (outer seat slide lock device) 13 of one of the two seat slide lock devices. The outer cable 33b is locked in the groove 23d.

The cable 35 composed of the inner cable 35a and the outer cable 35b covering the inner cable 35a transmits the movement of the link described later to the seat slide lock device (inner seat slide lock device) 13 of the other of the two seat slide lock devices. The outer cable 35b is locked in the groove 23e.

On the surface of the base 23, the lever 39 and the link 41 are arranged so as to overlap each other, and the hole 39a formed in the lever 39, the hole 41a formed in the link 41, and the hole 23f formed in the base 23. The lever 39 and the link 41 are rotatably provided about the pin 37 with respect to the base 23 by using the pin 37 fitted to the base 23.

A cut-up portion 41b is formed in the link 41, and a groove 43a extending linearly of the slide member (moving member) 43 is engaged with the cut-up portion 41b. Therefore, the slide member 43 is provided so as to be linearly movable with respect to the link 41.
A spring locking portion 23g having an intermediate portion wound around a pin 37 and one end formed on a base 23.
The link 41 is locked to the stopper portion (standing wall surface near the groove 23d) in the vicinity of the groove 23d of the base 23 by the torsion spring 45 whose other end is locked to the spring locking portion 41c formed in the link 41. ) It is urged in the direction of contacting 23h.

The lever 39 is formed with a groove 39d to which the inner cable 31a of the cable 31 is connected.
The link 41 is formed with a hole 41d to which the inner cable 33a of the cable 33 is connected and a hole 41e to which the inner cable 35a of the cable 35 is connected. Then, when the torsion spring 45 rotates against the urging force, the inner cable 33a of the cable 33 and the inner cable 35a of the cable 35 are pulled, and two seat slide lock devices (outer seat slide lock device and inner seat slide lock device) are pulled. ) 13 is designed to be unlocked.

The slide member 43 is formed with an abutted portion 43b to which the abutting portion 39b of the lever 39 can abut. The slide member 43 has a position where the contacted portion 43b can abut with the abutting portion 39b of the lever 39 (see FIGS. 2 and 4) and a position where the abutted portion 43b cannot abut (see FIGS. 6 and 8). It is possible to move to.

The slide member 43 is formed with a protrusion 43c (see FIGS. 3, 5, 7, and 9) that fits into the elongated hole 28a of the arm 28 that is rotationally driven by the motor 27. Therefore, when the arm 28 rotates forward or reverse, the slide member 43 moves to a position where the contacted portion 43b can abut with the abutting portion 39b of the lever 39 and a position where the abutting portion 43b cannot abut.

Therefore, the drive unit 30 is composed of the motor 27 and the arm 28 having an elongated hole 28a to which the protrusion 43c of the slide member 43 is fitted by being rotationally driven by the motor 27.
The slide member 43 is in a position where it can come into contact with the lever 39 (see FIGS. 2 and 4) by the turnover spring 49 in which one end is locked to the slide member 43 and the other end is locked to the link 41. At one time, it is urged toward a position where it can be contacted, and when it is at a position where it cannot be contacted with the lever 39, it is urged toward a position where it cannot be contacted.

The lever 39 is formed on the base 23 by a coil spring 47 whose one end is locked to the spring locking portion 23i formed on the base 23 and the other end is locked to the spring locking portion 39c formed on the lever 39. It is urged in the direction of contact with the stopper portion 23j.
Therefore, the lever 39 operated by the handle 22 that can be operated from the rear of the seat 1 and the lever 39 can be in two states of non-pushing / non-pushing. The link 41 that transmits the movement of the handle 22 to the seat slide lock device 13 has a transmission state in which the movement of the handle 22 is transmitted to the seat slide lock device 21 and a cutoff state in which the movement of the handle 22 is not transmitted to the seat slide lock device 21. A cancel link mechanism 61 that can be moved to is configured.

Next, the electrical configuration of the unlocking device 21 will be described with reference to FIG. 51 is a control unit that captures a P range signal (parking state signal) issued by an AT computer when the automatic transmission (AT) is in the P range (parking state with the transmission gear fixed), and 53 is a control unit 51. It is a drive circuit of a motor 27 controlled by.

Here, the operation of the unlocking device 21 having the above configuration will be described.
<When parking>
This will be described with reference to FIGS. 1 to 5.
When parked, the control unit 51 drives the motor 27 via the drive circuit 53 based on the P range signal: ON, and the contacted portion 43b of the slide member 43 can abut the contact portion 39b of the lever 39. It is moved to a suitable position (Fig. 2, Fig. 3).

Here, when the handle 22 is operated, the inner cable 31a of the cable 31 is pulled, and the lever 39 is rotated counterclockwise in FIG. 2 against the urging force of the coil spring 47.
When the lever 39 rotates, as shown in FIGS. 4 and 5, the contact portion 39b of the lever 39 presses against the contacted portion 43b of the slide member 43 provided on the link 41, and the link 41 is formed by the torsion spring 45. Two seat slide lock devices (outer seat slide lock device,) which rotate counterclockwise in FIG. 4 against the urging force and pull the inner cable 33a of the cable 33 and the inner cable 35a of the cable 35 in the locked state. The inner seat slide lock device) 13 is unlocked, and the seat 1 can be moved.
<When not parking>
This will be described with reference to FIGS. 1 and 6-9.

When not parked, the control unit 51 drives the motor 27 via the drive circuit 53 based on the P range signal: OFF, and the contacted portion 43b of the slide member 43 hits the abutted portion 39b of the lever 39. It is moved to a position where it cannot be touched (FIGS. 6 and 7).
Here, when the handle 22 is operated, the inner cable 31a of the cable 31 is pulled, and the lever 39 is rotated counterclockwise in FIG. 6 against the urging force of the coil spring 47.

Even if the lever 39 rotates, as shown in FIGS. 8 and 9, the contact portion 39b of the lever 39 cannot push the contacted portion 43b of the slide member 43 provided on the link 41, so that the link 41 rotates. The inner cable 33a of the cable 33 and the inner cable 35a of the cable 35 are not pulled, and the two seat slide lock devices (outer seat slide lock device and inner seat slide lock device) 13 remain in the locked state, and the seat 1 Cannot move.

According to the above configuration, the following effects can be obtained.
(1) The unlocking device 21 has a handle 22 provided on the seat back 5 and a transmission state in which the movement of the handle 22 is transmitted to the seat slide lock device (outer seat slide lock device, inner seat slide lock device) 13. Based on the cancel link mechanism 61 that can move to a cutoff state that does not transmit the movement of the handle to the seat slide lock device (outer seat slide lock device, inner seat slide lock device) 13, and the P range signal (parking state signal) of the vehicle. By having a drive unit 30 that switches the cancel link mechanism 61 between the transmission state and the cutoff state, the movement of the handle 22 is not transmitted to the seat slide lock device 13 by the cancellation link mechanism 61 while the vehicle is traveling. , The seat 1 does not slide against the will of the seated person.

(2) The outer and inner by driving the two seat slide lock devices (outer seat slide lock device and inner seat slide lock device) 13 with the unlock device 21 (particularly the link 41) provided on the seat back 5. The deviation of the initial movement timing of the unlocking of the seat slide lock device is reduced, and stable unlocking can be obtained. Also, since there is only one link 41, it saves space.

(3) The slide member (moving member) 43 moves linearly with respect to the link 41, which saves space.
(4) The slide member 43 is in a position where it cannot contact the lever 39 in the direction in which the slide member 43 can contact the lever 39 (see FIGS. 2 and 4) due to the turnover spring 49. When it is in the position, it is urged in a position where it cannot be contacted, so stable operation can be obtained.

The present invention is not limited to the above embodiment.
In the above embodiment, the slide member 43 that moves linearly as a moving member has been described, but a moving member that is rotatably provided with respect to the link 41 may be used.
Also, as the parking status signal, the P range signal issued by the AT computer when the automatic transmission is in the P range (parking state with the transmission gear fixed) was used, but in addition, when the side brake is activated. The signal issued to may be used as a parking status signal.
(Slide stopper mechanism 101)
The slide stopper mechanism 101 will be described with reference to FIGS. 11-15. 11 is an exploded perspective view of the slide stopper mechanism, FIG. 12 is an arrow view in the F direction of FIG. 11, showing a state at the time of parking, and FIG. 13 is an arrow view in the R direction of FIG. A diagram showing a state at time, FIG. 14 is a view showing an arrow in the F direction of FIG. 11 and showing a state other than when parked, and FIG. 15 is a view showing an arrow in the R direction of FIG. 11 and is not when parked. It is a figure which shows the state.

A motor 107 is attached to the back surface of the base 103 provided on the lower rail 7 side (floor F side) by using two screws 105 through which the two holes 103a provided in the base 103 are inserted. A protrusion 108a projecting in the direction of the base 103 is formed at the rotating end of the arm 108 provided on the output shaft of the motor 107. The protrusion 108a inserts the opening 103b formed in the base 103 and projects to the surface of the base 103.

A stopper 111 is arranged on the surface of the base 103. A hole 111a is formed in one end (base end) of the stopper 111. Further, the base 103 is also formed with a hole 103c facing the hole 111a. The stopper 111 is rotatably attached to the base 103 around the pin 113 by the pin 113 fitted in the hole 111a of the stopper 111 and the hole 103c of the base 103.

An elongated hole 111b is formed in the stopper 111, and a protrusion 108a of an arm 108 rotationally driven by a motor 107 is fitted in the elongated hole 111b. Therefore, when the arm 108 rotates upward, the stopper 111 also rotates upward, and when the arm 108 rotates downward, the stopper 111 also rotates downward.

A protrusion 111c protruding toward the base 103 is formed at the rotating end of the stopper 111, and a resin cap 114 is attached to the protrusion 111c. The protrusion 111c and the resin cap 114 of the stopper 111 are inserted into the window (hole) 103d formed in the base 103. Therefore, the stopper 111 can rotate within a range in which the protrusion 111c and the resin cap 114 come into contact with the upper side 103e that functions as the upper stopper of the window 103d and the lower side 103f that functions as the lower stopper.

A stopper portion 111d having a stopper surface 111e capable of contacting the rear end portion of the upper rail 9 of the seat slide rail 11 is formed on the upper portion of the stopper 111.
When the stopper 111 is in contact with the upper side 103e that functions as the upper stopper of the window 103d, as shown in FIGS. 14 and 15, the stopper surface 111e of the stopper portion 111d is the rear end of the upper rail 9 of the seat slide rail 11. It is in a position where it can come into contact with the part.

When the stopper 111 is in contact with the lower side 103f that functions as the lower stopper of the window 103d, as shown in FIGS. 12 and 13, the stopper surface 111e of the stopper portion 111d is the rear end of the upper rail 9 of the seat slide rail 11. It is in a position where it cannot contact the part.
Between the base 103 and the stopper 111, a single turnover spring 115 is arranged, one end of which is locked to the stopper 111 and the other end of which is locked to the base 103. Due to this turnover spring 115, when the stopper surface 111e is in a position where it can abut on the rear end of the upper rail 9 of the seat slide rail 11, the stopper surface 111e has a seat slide rail in the direction in which the stopper surface 111e can abut. When the rear end of the upper rail 9 of 11 is in a position where it cannot be contacted, it is urged in the direction in which it cannot be contacted.

Further, when the stopper portion 111d of the stopper 111 comes into contact with the lower surface of the upper rail 9, a force is generated to move the stopper 111 in a position direction in which the stopper 111 cannot abut with the rear end portion of the upper rail 9, and the force is generated on the stopper portion 111d. A slope 111f is formed so that the upper rail 9 on which the vehicle rides can move.

Further, the stopper 111 has two different planes in the rotation axis direction via the step 111g, and a stopper portion 111d having a stopper surface of 111e is formed on one of the two planes, and the other surface is formed. A protrusion 111c and a hole 111a are formed in the hole 111a.
Next, the electrical configuration of the slide stopper mechanism 101 is the same as that of the unlocking device, and the P range signal (P range signal) output from the AT computer when the automatic transmission is in the P range (parking state with the transmission gear fixed). It includes a control unit that captures a parking state signal) and a drive circuit of a motor 104 that is controlled by the control unit.

Here, the operation of the slide stopper mechanism 101 having the above configuration will be described.
<When parking>
This will be described with reference to FIGS. 11-13.
When parked, the control unit drives the motor 107 via the drive circuit based on the P range signal: ON, to a position where the stopper surface 111e cannot contact the rear end of the upper rail 9 of the seat slide rail 11. The stopper 111 is moved (see FIGS. 12 and 13). That is, the stopper 111 is retracted.

In this state, the sheet 1 can be moved to the long slide LS area in addition to the normal slide area NS.
<When not parking>
This will be described with reference to FIGS. 11 and 14-15.

When not parked, the control unit drives the motor 107 via the drive circuit based on the P range signal: OFF to a position where the stopper surface 111e can abut on the rear end of the upper rail 9 of the seat slide rail 11. The stopper 111 is moved (see FIGS. 14 and 15).
In this state, the sheet 1 can usually be moved only in the slide area NS.

According to the above configuration, the following effects can be obtained.
(1) The stopper 111 provided on the lower rail 7 side and movable to a position where it can / cannot contact the rear end of the upper rail 9 and the stopper 111 come into contact with the rear end of the upper rail 9. A turnover spring 115 that urges the stopper 111 in a position where it can be contacted when it is in a possible position, and in a position where it cannot be contacted when the stopper 111 is in a position where it cannot contact the rear end of the upper rail 9. If the stopper 111 moves to a position where it can / cannot contact the rear end of the upper rail 9, the turnover spring 115 allows the stopper 111 to contact the rear end of the upper rail 9. When it is in a position, it is urged toward a position where it can be contacted, and when the stopper 111 is in a position where it cannot contact the rear end of the upper rail 9, it is urged toward a position where it cannot be contacted. Therefore, the stability at the two positions is good, and it is not necessary to keep moving the stopper 111 against the urging force of the urging member by hand, and the operability is good.

(2) Since the stopper 111 is driven based on the parking signal of the vehicle, stable operation can be obtained.
(3) Since the turnover spring 115 is provided between the base 103 and the stopper 111, it is unlikely to interfere with other members even if a cover or the like for protecting the turnover spring 115 is not provided.

(4) When the protrusion 111c of the stopper 111 is inserted into the window (hole) 103d provided in the base 103, so that the rotation range of the stopper 111 is restricted and the stopper 111 is further tilted in a direction other than the rotation direction. It can also function as a regulatory aspect of.
(5) When the stopper portion 111d of the stopper 111 comes into contact with the lower surface of the upper rail 9, a force is generated to move the stopper 111 in a position direction where it cannot contact the rear end portion of the upper rail 9, and the stopper portion 111d is on the stopper portion 111d. When the seat 1 is in the long slide area LS, the seat 1 is in a non-parking state due to the formation of the slope 111f on which the upper rail 9 that rides on the vehicle can move, and the retracted stopper 111 is the rear end portion of the upper rail 9. Even if the sheet 1 is moved to a position where it can be brought into contact with the sheet 1, the sheet 1 can be moved to the normal slide area NS.

(6) The strength of the stopper 111 is improved by having two different planes in the rotation axis direction via the step 111g.
Further, of the two planes, a stopper portion 111d having a stopper surface 111e is formed on one surface, and a protrusion 111c and a hole 111a which is the center of rotation of the stopper 111 are formed on the other surface. As a result, for example, even if the stopper portion 111d on one surface is deformed by an impact or the like, the deformation to the other surface on which the protrusion 111c or the hole 111a is formed is prevented.

The present invention is not limited to the above embodiment.
As the parking status signal, the P range signal issued by the AT computer when the automatic transmission is in the P range (parking state with the transmission gear fixed) is used, but it is also issued when the side brake is activated. The signal may be used as a parking signal.

Further, in the above embodiment, the stopper 111 is provided on the lower rail 7 side so that the upper rail 9 abuts on the stopper 111, but conversely, the stopper is provided on the upper rail side and abuts on the lower rail side (floor F side). May be

1 Seat 5 Seat back 7 Lower rail 9 Upper rail 11 Slide rail 101 Slide stopper mechanism 111 Stopper 115 Turnover spring

Claims (5)

A seat with a seat back that supports the back of the occupant,
A lower rail provided on the floor side, a slide rail composed of an upper rail movably engaged with the lower rail and provided with the seat, and a slide rail.
It is a seat device having
A stopper provided on either side of the lower rail or the upper rail and movably provided at a position where the lower rail or the upper rail can be contacted with the other, and a position where the lower rail or the upper rail cannot be contacted.
When the stopper is in the position where it can be contacted with the other, it is attached in the direction of the position where it can be in contact, and when the stopper is in the position where it cannot be in contact with the other, it is attached in the direction of the position where it cannot be in contact. With a vigorous turnover spring,
Have a slide stopper mechanism consisting,
The stopper is provided on the base provided on the lower rail side.
The turnover spring is provided between the stopper and the base.
A seat device characterized by that. The seat device according to claim 1, wherein a drive unit for driving the stopper to the contactable position and the non-contactable position is provided based on the parking state signal of the vehicle. The stopper is rotatably provided on the base and has a protrusion formed so as to project toward the base.
The seat device according to claim 1 or 2, wherein the base is formed with a window through which the protrusion is inserted to regulate the rotation range of the stopper. The stopper has
A stopper surface that can come into contact with the rear end of the upper rail,
When it comes into contact with the lower surface of the upper rail, a slope that generates a force to move the stopper in a position direction where the stopper cannot be contacted, and a slope.
3. The seat device according to claim 3. The stopper is
It has two different planes in the direction of rotation through the steps,
The sheet device according to claim 4, wherein the stopper surface is formed on one of the two planes, and the protrusion is formed on the other surface.

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